Logger A

APPLICATION FOR LICENSE TO AUTHORIZE NEAR-SURFACE LAND DISPOSAL OF LOW-LEVEL RADIOACTIVE WASTE

Appendix 2.3.1-2: Meteorological System

March 16, 2007 2.3.1-2-1 Revision 12a

APPENDIX 2.3.1-2 METEOROLOGICAL SYSTEM

APPLICATION FOR LICENSE TO AUTHORIZE NEAR-SURFACE LAND DISPOSAL OF LOW-LEVEL RADIOACTIVE WASTE

Appendix 2.3.1-2: Meteorological System

March 16, 2007 2.3.1-2-2 Revision 12a

TABLE OF CONTENTS Models in use as of January 2005 are listed below.

Section Page Cover Introduction Met One Model 014A Wind Speed Sensor Met One Model 024A Wind Direction Sensor Met One Model 090D Barometric Pressure Sensor Met One Model 083C-1 Relative Humidity w/ Platinum Temperature Sensor Met One Model 370C Rain Gauge Met One Model 96-1 Solar Radiation Sensor Novalynx Model 255-100 Analog Output Evaporation Gauge Met One Model 455A Micromet Data Logger

EE Met One Instruments

Met One Instruments, Inc. Corporate Sales & Service: 1600 Washington Blvd., Grants Pass, Oregon 97526 Tel(541) 471-7111 Fax (541) 471-7116 Regional Sales & Service: 3206 Main Street, Suite 106, Rowlett, Texas 75088 Tel(972) 41 2-4747 Fax (972) 412-471 6 http:l/www.rnetone.corn metoneQmetone.com

Introduction

Your Meteorological Monitoring System has been completely wired and tested to specifications at the f a c t o y

When the system is installed, there should not be a need for recalibratioii.

Please refer to the System lnterccnnect Diagram(s) at the end of this manual, if required, when installifig the system.

- If a datalogger is included in this system, it has been set up at the factory for this configuration. No adjustments are necessary

except for time and date information.

A copy of the test certificate is enclosed, along with sensor calibration certificates, in a separate enve lop .

Met One Instruments

1600 NW Washington Blvd. Regior,al Sales & Service Grants Pass, Oregon 97526 3206 Main St. Suite 106 Telephone: 541 -471 -71 1 1 Rowlett, Texas 75088 Facsimile: 541-471-71 16 Telephone: 972-41 2-4715

Facsimile: 972-412-4716

PEWAT l b Document No. 01 4A-9800

1600 Washington Blvd. Grants Pass, Oregon 97526 Telephone 541-471-71 11 Facsimile 541 -477-71 16

Met One instruments

Regional Sales & Service 3206 Main St., Suite 106 Rowlett, Texas 75088 Telephone 972-41 2-471 5 Facsimile 972-412-471 6

0144 WIND SPEED SENSOR

1 .0 GENERAL INFORMATION

1 .1 The Met One Ol4.A Wind Speed Sensor uses a dwable 3-cup anemometer assembly and simple magnet-reed switch assembly to produce a series of contact closures whose frequency is proportional to wind speed. This sensor is usually used in corijunction with the 191 Crossarrn Assembly and a translator module, but may also be used directiy with a variety of dataiaggers.

1 .2 Sensor Cable has a quick-connect connector with vinyl-jacketed, shielded cable. Cable length is given in -XX feet on each cable part number.

--

Table 1 - 1 Model O14A Wind Speed Sensor Specifications

Performance Characteristics

Maximum Operating Range 0-60 meterdsec or 0-125 rnph Starting Speed .5 metersJsec or 1 mph Calibrated Range 0-50 melerdsec or 0-100 Accuracy +I .5% or 0.25 mph Temperature Range -50" C to 85' C Distance Constant* Standard (1 81 2 Aluminum

Cup Assembly) Less than 15 feet Optional (1 708 Lexan Cup

Assembly) Less than 5 feet

"The distance traveled by the air after a sharp-edged gust has occurred for the anemometer rate to reach 63% of the new speed.

Electrical Characteristics

Output Signal

Phvsical Characteristics

Contact closure at frequency V= (f x 1.7892) + 1 mph

Weight 1.5 Ibs. Finish Anodized , t Mounting Fixtures Use with 191 Crossarm \

Cabling 2-Conductor Cable, XX is cable length in feet

Optional Accessories (a)1708 Lexan Cup Assembly, Fast Response Type

01 4/4-9800 REV. 9/96

2.0 INSTALlATION

2.1 01 4A Wind Spesd Sensor Installation

A. Check to see that the cup assembly rotates freely (threshcld, bearing check).

B. Install the sensor into the fitting on the end of the 191 mounting arm. (THE E N D WITHOUT THE ALIGNMENT BUSHING) Instail just deep enough to allow cable connection. (Reference the mounting detaii in Figure 2-1).

C. Apply a small amount of silicone grease to the sst screws to prevent 'freezitlg up' in corrosive environments. Tighten the lockin!: set screws--do not over tighten.

D. Connect the Cable Assembly to the connector receptscle on base of sensor. Secure the cable to the mounting arm using cable ties or tape.

W i r i n g

The Cable Assembly contains three wires.

Blsck - - Signal

Rd - - Common

WhiteIBrn = Cable Shield

01 4A-9800 REV. 9/96

014A Wind Speed Rev. 4/11/89

TABLE 3-1

MODEL 014A WlND SPEED SENSOR CALIBRATION

WIND VELOCITY VS OUTPUT FREQUE3CY Speed

V m p h 1 0 20 3 0 40 5 0 6 0 7 0 8 0 9 0

100 110 120

SPEED IN METERSISEC RFS

1.284 2.846 4.409 5 .972 7 .535 9 .098

10.661 12.224 13.787 15.350 16 .913 18.476 20.039 21.602 23.165 24.728 26.291 27.854 29.41 7 30.980 32 .543 34.106 35.669 37.232

STANDARD CALIBRATOR TEST POINTS

V mph =RPFvl + I 16.767

V m p s = RPbl + ,44704 37.5067

Based on equation f = ,5589 (V- I )

where f is the output frequency.

V is wind speed miles per hour.

RPS = cup revolution per second.

1 MPH = 0.44707 meterslsec

01 4A-9800 REV. 9/96

3.0 OPERATIONAL CHECK-OUT AND CALlBRallON

3 .1 01 4A Wind Speed Sensor Check-Out

A. Spinning the anemometer cup assembly will produce a series of pulses. To verify sensor output, monitor this signal with either a plug-in Translator Module, Datalogger or an Ohmmeter. Refer to Frequency vs. Wind Speed Table 3-1. Spin slowly and monitor output signal. A windspeed calibrator may be used to check operation at different RPM points.

E. Inspect the cup assernbly for loose cup arms or other damage. The cup assembly cannot change calibration unlass a mechanical part has come loose or has been broken. --

4 . 0 MAINTENANCE AND TROUBLESHOOTING

4.1 General Maintenance Schedule*

6-1 2 month intervals:

A. Inspect sensor for proper operation per Section 3.0.

B, Replace Wind Speed Sensor bearings in extremely adverse environments per Section 4.6.

12-24 month intervals:

A. Replacement of sensor bearings.

24-36 month intervals:

A. Recommended complete factory overhaul of sensor.

*Schedule is based on average to adverse environments.

Table 4-1

TROUBLESHOOTING TABLE

Symptom Probable Cause

No sensor output Faulty reed switch

No sensor ouput Faulty bearings

No sensor OL?PU? Faulty cable

Remedy

Replace reed switch

Replace bearings

CI-reck Connections

01 4A-9806 REV. 9/96

4 .3 01 4A Wind Speed Sensor: 6-1 2 Month Periodic Service

A. At the crossarm assembly, disconnect the Sensor Cable from the Sensor (leave the cable secured to the crossarm) and remove the Sensor from the fitting on the crossarm assembly.

8. Loosen the two set screws on the side of the hub and remove the anemometer cup assembly.

C. Visually inspect the anemometer cups for cracks and breaks and make sure that each is securely attached to the cup assembly hub.

D. Inspect the Sensor for any signs of corrosion and dust buildup.

E. Rotate the Sensor hub assembly to make sure that it turns freely and that the Sensor bearings are not damaged. Make sure that the magnet assembly is not contacting the reed switch. (Ref. Fig. 4.1).

F. A moisture drain vent is located on the base of the Sensor. Make sure that this vent is clear.

G Re-install Sensor as per installation procedure (Section 2.0) and verify proper operation using procedures in Section 3.0.

4 . 4 0144 Wind Speed Sensor General Assembly (refer to 014A Assembly Drawing) - The following steps cover basic disassembly:

A. At the crossarm assembly, disconnect the Sensor Cable from the Sensor (leave the cable secured to the crossarm) and remove the Sensor from the crossarm assembly.

B. Loosen the two set screws and remove the anemometer cup assembly.

C. Remove the three (3) flathead screws at the tog of the Sensor and lift out the bearing mount assembly, taking care not to break the wires.

4 , 5 Reed Switch Replacement Procedure

Use the foilowing procedure to repiace Sensor Reed Switch:

A. Remove bearing mount assembly as per Section 4.4.

B. Unsolder the leads of the Reed Switch (10) and remove the switch from the mounting terminals (1 3).

C. Solder the new switch onto the sides on the switch mount terminals, taking care not to stress the point where the leads enter the glass reed switch body. (Solder quickly to reduce excess heat to reed switch.) Measure the distance between the bottom of the rotating magnet and the top of the switch envelope, as shown in Figure 4 -1. The spacing should measure between .010 and ,020 inch.

01 48-9800 REV. 9/96

D. Monitor the output of the translator module and spin shaft for an upscale indication, li switch seems to falter, adjust switch slightly closer to magnet.

E. If possible, connect the shaft to an 1800 RPM motor, using a flexible coupling and verify an output of 108 mph with a 50% duty cycle.

F. Reassemble Sensor by reversing procedure.

FIGURE 4-1 : REED SWITCH INSTALLATION

- 4.6 Bearing Replacement Procedures

The bearings used in 014A Sensor are special stainless steel ball bearings with a protective shield. Bearings are lubricated and sealed. Do not lubricate bearings as the lubrication will attract dust and wili form an oilldust glue. Use the following proczdure for bearing replacement:

A. Remove bearing mount assembly as per Section 4.4.

B. Loosen set screws(21) in magnet assembly (4), lift shaft (7) and collar (3) up and out of bearing mount (2) . Be sure to retain lower spacer (19)

C. Insert a right-angle type of toot such as an alien wrench into bearing, cock it slightly to one side and remove bearing. Remove both hearings. Clean bearing seats. -

D, Install new bearings. Be careful not to introduce dirt particles into bearings. CLEAN WANDS ONLY! DO NOT ADD LUBRICATION OF ANY KIND.

E. Reassemble the Sensor in reverse order. Be sure to include spacers (19) over the bearings when repbcing the shaft in the bearing mount. After t h e magnet assembly (4) has been tightened, a barely perceptible amount of endplay sho~ild be fe!t when the shaft is moved up and down (approximately ,004 inch).

014.A-9800 REV. 9/96

4.7 O14A Wind Speed Sensor Repair and Recalibration Service

This service provided by the factory enables fast, economical service for the user. This repair and calibration service includes disassembly and detailed electronic components. Service includes replacement of bearings regardless of apparent condition. Service also includes replacement of the following items.

A. Shaft

B. All set screws.

Service also includes functional test of Sensor. Other compcnenk will be replaced as required. Additional charges for additional materials only will be added to the .- basic service charge.

Table 4 - 2 REPMCEABLE PARTS LIST

PART #

1 0 1 6 8 5 - 2 1 0 1 6 8 5 - 4 1 0 1 6 8 5 - 7 1 0 1 7 1 5 1 0 1 8 1 2 1 0 1 8 9 8 8 6 0 0 0 1 1 0 1 8 1 2 - 1 2 8 4 4 51 0 0 2 0 970062 8 6 0 2 5 0 6 0 1 2 5 0 601 230

* Parts included in 2402 Rebuild Kit

DESCRIPTION

WS SUPPORT BEARING MOUNT C O W I\hrlGNErASSY CUP ASSEMBLY (ALUM) BEAillNG SHAFT CUP ASSEMBLY, LOCllN SWITCH REED CAP FOR CONNECTOR TERMINAL HH SMlTil SPACER SET SCREW 4-40>: 118 FLAT HD. 4-40X 114 SCREW

01 4/4-9800 REV. 9/96

1805 SENSOR CABLE - TERMINATES IN SPADE LUGS

DASH--NO. = LENGTH IN FEET

BLX--------------€ Si'GNbL

BHT OR RZD ----------C C O W O N El==-

DASB HO. = LENGTH ZN FEET

2026 CABLE - USE VITR BT-SET 4B AND 4C

DASB NO. = LEMGTH IN FEET

Of4A REV. 4/4/90 8

The Model 014AWind SpeedSensor is an accurate,durable and economicalanemometer suitable for awide range of wind studyapplications. It is designed forlong term unattended opera-tion in most meteorologicale n v i r o n m e n t s .

Features■ Range to 100 mph■ Low starting threshold■ Broad temperature

operating range■ Accuracy of ±1.5%■ Stainless steel and

aluminum construction

OperationFor maximum operationalreliability, the sensor uses asealed magnetic read switch.This switch produces a seriesof contact closures at a rateproportional to wind speed.With its pulsed output, theModel 014A lends itself toapplications involving bothdigital and analog measure-ment systems.

The pulsed signal may be con-verted to standardized analogvoltage and/or current outputby use of translator electron-ics. Direct connection to a dat-alogger is also possible. T h erobust aluminum cup assem-bly normally supplied has adistance constant of less than

15 feet. For greater sensitivity,the optional Lexan plastic cupassembly may be specified,which has a distance constantof less than 5 feet.

ConstructionThe construction of the sen-sor reflects the requirementfor reliability and durability.Only the best corrosion resis-tant materials, such as stain-less steels and anodized alu-minum are used. The Model014A sensor uses a quick-connect sensor cable. Cablelength may extend hundredsof feet without affecting mea-surement performance.

Accuracy, reliability and econ-omy make the Model 014AWind Speed Sensor an idealchoice for most applications.

Corporate Sales & Service: 1600 Washington Blvd., Grants Pass, OR 97526, Phone (541) 471-7111, Fax (541) 471-7116Distribution & Service: 3206 Main Street, Suite 106, Rowlett, TX 75088, Phone (972) 412-4747, Fax (972) 412-4716http://www.metone.com • [email protected]

Met One Instruments, Inc.

Wind Speed Sensor

014A

014A- REV. 9/1/97

SpecificationsRange: 0-100 mphStarting Threshold: 1.0 mphAccuracy: ±0.25 mph or 1.5% FSDistance Constant

Standard: Less than 15 ft (Metal Cup)Fast Response: Less than 5 ft (Lexan Cup)

Operating Range: -50°C to +70°CWeight: 11 oz (.31 kg)Contact Rating: 10 mA maximumMounting: PN 191 CrossarmOrdering Information

Standard Model: 014A (Metal Cup)Fast Response Model: 014A-1 (Lexan Cup)Cable: PN 1805-xx (xx=length in ft)

4/2/2003 Rev D

Service Report 014A Wind Speed Sensor Met One Instruments, Inc. 1600 NW Washington Blvd. Grants Pass, OR 97526 Ph. 541-471-7111 Fax 541-471-7116 E-mail: [email protected] Parts & Service Description REPAIR AND FIELD MAINTENANCE A complete repair and service department is maintained at our factory in Grants Pass, Oregon, and at our regional service facility in Dallas, Texas. Most repairs can be made in the field by a simple substitution of components. Some repairs do require recalibration following the replacement of faulty components. If calibration standards are not available, the instrument can be returned to the service facility. The turn around time is generally less than five (5) working days. RETURN AUTHORIZATION Prior to any product return, please contact the factory at (541) 471-7111 or e-mail [email protected] for a return authorization number (RA). BASIC SERVICE(S)

Ordering No. Description List Price SVC0014 SVC0100

014 WS Sensor Std. Repair Including: Replace bearings & reed switch. Check starting threshold & full scale output. Check cups against NIST standard As found Sensor Test

$ 70 $ 15

REPLACEABLE PARTS Note: Replacement of some of the following parts will require re-calibration of the sensor. Those replacement items that require re-calibration of the sensor are indicated with an “ * “. Instructions are provided in the Product User’s Manual. REPLACEABLE/SPARE PARTS LIST

Ref. (Dwg. Attached)

Part No./ Ordering No.

Description List Price

1 1685-2 WS Support $ 35 2 1685-4 Bearing Mount $ 19 3* 1685-7 Collar $ 7 4* 1715 Magnet Assy $ 16 5 1812 Cup Assembly (Alum) $ 84 6* 1898 Bearing $ 16 7* 860001 Shaft $ 5 9 1812-1 Cup Assembly, Lexan $ 84 10* 2844 Switch Reed $ 4 13* 970062 Terminal HH Smith $ 3 19* 860250 Spacer, .250” ID, .375” OD, .010” THK $ 3 21* 601250 Set Screw 4-40X 1/8 $ 0.25 23 601645 Set Screw 8-32 X 3/8, SST, Brass Tip (2 required) $ 0.25 No Reference 2402 Rebuild Kit, assy, incl. Dwg ref. 2,3,4,6,7,10,13,19,21 $ 95

4/2/2003 Rev D

ASSEMBLY/PARTS REFERENCE DRAWING

1600 Washington Blvd. Grants Pass, Oregon 97526 Telephone 541-471-71 11 Facsimile 541 -471 -71 1 6

Met One Instruments

Regional Sales & Service 3206 Main St., Suite 106 Rowlett, Texas 75088 Telephone 972-41 2-471 5 Facsimile 972-41 2-471 6

024 WIND DIRECTION SENSOR OPERATION MANUAL

1 .1 The Met One 024A V'dind Direction Sensor uses a lightweight, air-foil vane and a potentiometer to produce an output that varies proportional to wind direction.

1 .2 The Sensor Cable has a quick-connect connector with vinyl-jacketed, shielded cable. i Cable length is given in -XX feet on each cable part number. An 1806-XX cable is used

with transiators having terminal strip connections, and an 1809-XX cabie is used with translators having circular MS type connectors.

TAELE 1-4 Model 0244 Wind Direction Sensor Specifications

Performance Characleristics

Azimuth

Threshold Accuracy Damping Ratio

Electrical 0-356"* Mechanical 0-360" 1.0 mph ? 5 3 Standard 0 .25 Optional 0 .4

Sand,Dust,Fungus M I L - E - 5 2 7 2 Salt Spray M I L - E - 1 2 9 3 4

Temperature Range

Delay Distance


Outp5t Signal

Physical Characteristics

Weight Finish Mounting Fixtures Cabling

5 ft.

Varying resistance 0-1 0 K ohms

1.5 pounds Anodized Use with 191 Crossarm 3-Conductor Shielded Type Cable, xx is cable length in feet

024A Revised 6/94

3 . O OPERATIONAL CHECK-OUT AND CALIBWTION

3.1 024 Wind Direction Sensor Check-Out

A. Rotating the vane in a clockwise direction as viewed from above will increase the output up to the 360" point and it will start over 0".

B. The 024A wind direction sensor should be inspected periodically for physical damage to the vane assembly and cable connections. lnspect all vane assembly parts to be sure that they are securely fastened. Inspect the sensor connector and mating cable connector for corrosion.

4 .0 MAINTENANCE

4 .1 General Maintenance Schedule*

6-12 Month Intervals:

A. inspect sensor for proper operaiion per Section 3.0.

24-36 Month I~ te rva ls :

A. Factory replacement of potentiometer per Section 4.

B. Recommended complete factory overhaul of sensor,

4 . 3 Remove the sensor from the ciossarm and remove the vane assembly. Replacement of the potentiometer will require reaiignment with respect to 180 degrees. Use the iollowing procedure to replace and realign the potentiometer.

A ) Loosen the three set screws which hold the potentiometer in the sensor housing. Pull the potentiometer up and out of the housing.

B) Remove the three wires from the potentiometer assembly. Note the color code of the wires with respect to the pins on the potentiometer. (See the 024A Assy. Dwg.)

C ) Solder the wires to the new potentiometer and install the potentiometer in the sensor housing.

\

024A Revised 6/94

I D I REDRAWN PER E.O. 1131 E WIRE COLORS

REFERENCE

COUIBON CLR OR WIT &- SICNAL

SHIELD ITEM PART NO. DESCRIPTION

1 1 500351 1 CONNECTOR. tl PIN. FEMALE

SENSOR END TRANSLATOR END CABLE. 3 WIRE. SHIELDED

SLEEVINC. P/4". SllRIHK

980075 SLEEVINC. I/B". SllRlNK

SLEEVING. 1/4". CLEAR SHRINK H

A IDENTIFY CABLE 18" FROM EACB END. DA@ NUMBER P LENGTH IN FEET.

MET ONE INSTRUMENTS

ASSY, CABLE, 024 WIND DIRECTION SENSOR

SpecificationRange: 0 - 360°Starting Threshold: 1.0 mphAccuracy: ±5°Delay Distance: Less than 5 ftDamping Ratio

Standard: 0.25 (Metal Vane)Fast Response: 0.4 (Foam Vane)

PotentiometerSand, Dust, Fungus: MIL-E-5272Salt Spray: MIL-E-12934

Electrical Range: 0 - 360°0 - 540° with approp. translator

Operating Range: -50°C to +70°CWeight: 1 lb 2 ozMounting: PN 191 CrossarmOrdering Information

Standard Model: 024A (Metal Vane)Fast Response Model: 024A-1 (Lexan Vane)Cable: PN 1806-xx (xx=length in ft)

The Model 024A Wind Direc-tionSensor is an accurate, durableand economical sensor suitablefor a wide range of wind studyapplications. It is designed forlong term unattended operationin most meteorological environ-ments.

Features■ Range to 100 mph■ Low starting threshold■ Broad temperature

operating range■ Built-in alignment and

calibration feature■ Accuracy of ±5°■ Stainless steel and

aluminum constructionOperationThe sensor incorporates a preci-sion wire-wound potentiometerfor accurate resolution of winddirection. The potentiometer isdirectly coupled to the vaneassembly. Variations in winddirection produce a correspond-ing varying voltage, which lendsitself to both digital and analogmeasurement systems.

ConstructionThe construction of the sensorreflects the requirement for relia-bility and durability. Only the bestcorrosion resistant materials,such as stainless steels andanodized aluminum are used.The potentiometer meets strin-gent military specifications forsand, dust, salt spray and fungusresistance. The Model 024A sen-sor uses a quick-connect sensorcable. Cable length may extendhundreds of feet without affectingmeasurement performance.

Accuracy, reliability and economy make the Model 024A WindDirection Sensor an ideal choice for most applications.



Wind Direction Sensor

024A

024A- REV. 8-1-2000

5-14-2001 REV A

Service Report 024A Wind Direction Sensor Met One Instruments, Inc. 1600 NW Washington Blvd. Grants Pass, OR 97526 Ph. 541-471-7111 Fax 541-471-7116 E-mail: [email protected] Parts & Service Description REPAIR AND FIELD MAINTENANCE A complete repair and service department is maintained at our factory in Grants Pass, Oregon, and at our regional service facility in Dallas, Texas. Most repairs can be made in the field by a simple substitution of components. Some repairs do require recalibration following replacement of faulty components. If calibration standards are not available, the instrument can be returned to the service facility. The turn around time is generally less than five (5) working days. RETURN AUTHORIZATION Prior to returning any product, please contact the factory at (541)471-7111 or e-mail [email protected] for a return authorization number (RA). BASIC SERVICE(S)

Ordering No. Description List Price SVC0039 SVC0100

Basic Sensor Service Including: Inspection and performance test. Test starting threshold, NIST calibration, and linearity. As found Sensor Test

$ 50 $ 15

ADDITIONAL SERVICES Replacement of potentiometer and other components is performed on an as-needed basis. Replacement parts are billed based on the following parts price list (below). REPLACEABLE PARTS Note: Replacement of some of the following parts will require re-calibration of the sensor. Those replacement items that require recalibration of the sensor are indicated with an “* ” Instructions are provided in the Product User’s Manual. REPLACEABLE/SPARE PARTS LIST (Aluminum Vane, Model 024A)

Ref. (Dwg. Attached



A 2089 Aluminum Vane $ 20 B 2088 Vane Arm For Aluminum Vane $ 13 C 1685-10* Hub $ 30 D 1814-1 Counterweight Arm for Aluminum Tail $ 5 E 1057 Counterweight $ 17 A-E 2105* Aluminum Vane Assembly, Complete $ 95 F 2017* Potentiometer Assembly $ 130 G 860015 Shoulder Screw $ 4 -- 601625 8-32 x ¼ Set Screw $ 1 L 601680 8-32 x 3/8 Set Screw $ 1 K 601070 2-56 x 1/8 Set Screw $ 1 M 2748 Label No Charge

5-14-2001 REV A

REPLACEABLE/SPARE PARTS LIST (Foam Vane, Model 024A-1)

Ref. (Dwg. Attached



A,B 1286 Foam Vane & Arm Assembly $ 62 C 1685-10* Hub $ 30 D 1814-2 Counterweight Arm for Foam Tail $ 5 E 1057 Counterweight $ 17 A-E 2106* Foam Vane Assembly, Complete $ 95 F 2017* Potentiometer Assembly $ 130 G 860015 Shoulder Screw $ 4 -- 601625 8-32 x ¼ Set Screw $ 1 L 601680 8-32 x 3/8 Set Screw $ 1 K 601070 2-56 x 1/8 Set Screw $ 1 M 2748 Label No Charge

ASSEMBLY/PARTS REFERENCE DRAWING

Barometric Pressure Sensorsconvert absolute atmosphericpressure into a linear, proportion-al voltage, which may be used inany meteorological program.

Features■ Compact size■ Weatherproof enclosure■ Remote output■ Permanent calibration■ Robust construction

These sensors are inherentlystable devices that do notrequire periodic service or routine recalibration.

OperationThe enclosure houses a solid-state pressure transducer, withlinearization and amplificationelectronics.

The Model 090D is housed in aheavy duty fiberglass enclosure,suitable for harsh and severeenvironments. Ahose barb isprovided to enable the connec-tion of a 1/4” sampling tube tothe outside environment.

The Model 091 is containedwithin a small polycarbonateenclosure, and may be mount-ed outside or inside a buildingor other enclosure. Small inletholes allow the atmosphericpressure access to the sensing element.

The standard range of the090D/ 091 is 26-32 in. Hg,*suitable for elevations sea level to 1500 ft. Other rangesare available.

090D

Corporate Sales & Service: 1600 Washington Blvd., Grants Pass, OR 97526, Phone (541) 471-7111, Fax (541) 471-7116Distribution & Service: 3206 Main Street, Suite 106, Rowlett, TX 75088, Phone (972) 412-4747, Fax (972) 412-4716http://www.metone.com


Barometric Pressure Sensors

090D091

090D/091 - 7/25/97

091

SpecificationsPerformance

Resolution: InfiniteTemp. Operating Range: -40°C to 65°CTemp. Compensated Range: -18°C to 65°CAccuracy: ±0.04 in Hg (±1.35 mbar) or

±0.125% FS


Power Requirement: 11 mA @ 12 VDC, TypicalSensor Output: 0-1 VDC, Standard

0-5 VDC, Optional


090D Weight: 2 lbs, 5 oz (1.05 Kg)Dimensions: 5.5 x 5 x 7.5 in (14 x 12 x 19 cm)

091 Weight: 8.8 oz. (250 g)Dimensions: 2.1 x 3.2 x 5 in (5.4 x 8.3 x 13 cm)

Ordering Information

Specify elevationSpecify output voltage

Cable: #1169-xx (xx = length in feet)Specify length in feet

Specifications subject to change without notice.*Conversions: 1 in. Hg = 3.3864 kPa, 1 in. Hg = 33.864 mbar, 1 in. Hg = 25.4 mm/Hg

9-10-2001 Rev A

Service Report 090D Barometric Pressure Sensor Met One Instruments, Inc. 1600 NW Washington Blvd. Grants Pass, OR 97526 Ph. 541-471-7111 Fax 541-471-7116 E-mail: [email protected] Parts & Service Description REPAIR AND FIELD MAINTENANCE A complete repair and service department is maintained at our factory in Grants Pass, Oregon, and at our regional service facility in Dallas, Texas. Most repairs can be made in the field by a simple substitution of components. Some repairs do require recalibration following the replacement of faulty components. If calibration standards are not available, the instrument can be returned to the service facility. The turn around time is generally less than five (5) working days. RETURN AUTHORIZATION Prior to any product return, please contact the factory at (541)471-7111 or e-mail [email protected] for a return authorization number (RA). BASIC SERVICE(S)

Ordering No. Description List Price SVC0057 090 Standard Repair Including:

Calibration to NIST standard $ 60

REPLACEABLE PARTS Note: Replacement of some of the following parts will require re-calibration of the sensor. Those replacement itmes that require re-calibration of the sensor are indicated with an “ * “. Instructions are provided in the Product User’s Manual. REPLACEABLE/SPARE PARTS LIST



1931-1 Case $ 67 2696 Mounting Plate $ 9.45 2540* Circuit Card Assy ( specify range ) $ 265 960200 Tygon Tubing, ¼” ID x 3/8” OD x 4” $ 0.35 580281 Elbow, ¼” $ 2.40 720050 O-Ring Seal $ 0.15 971106 Nylon Washer $ 1.86 580285 Bulkhead Fitting, Barb to Barb $ 4.74 480510 Strain Relief $ 4.11 600146 U-Bolts w/ clamp $ 3.06

ASSEMBLY/PARTS REFERENCE DRAWING (Next Page)

9-10-2001 Rev A

elative Hermi ity W/ Platinum Tern erature Sensor

Qseralion Manual

083C SERIES RELATIVE HUMlDlTY/TEMPERATURE SENSORS

1.0 GENERAL INFORMATION

1 .I I h e 083C Sensor contains an extremely accurate and sensitive relative humidity sensor which responds to the full range of 0-100% humidity. Response is linear with small hysteresis and negligible temperature dependence. The sensor is designed to be housed in a radiation shield when used outdoors. Certain models also contain a high-accuracy linearized air temperature sensor, permitting simultaneous measurement of relative humidity and temperature.

1.2 The Sensor Cable uses quick-connect connectors with vinyl-jacketed shielded cable. Cable length is given in -XX feet on each cable part number. The cable part number depends on which radiation sheld the sensor is mounted in. The 083C-17-1 sensor is mounted in the 071 Radiation Shield and uses the 1873-XX cable. The 083C-17-35 is mounted in the 0738 or 075B Radiation Shield and uses a 2348-XX cable. Both of these cables are documented at the end of this manual section.

The 083C-17-6 sensor mounts in the 0768 Radiation Shield and uses a 2144-XX cable, which is documented in the 076B manual section.

Table 1 .I Model 083 Relative Humidity Sensor Specifications

Sensing Element Thin-film capacitor

Temperature Range -40°F to 175" F

Response Time 10 to 20 seconds at 68°F 90% of final RH value

Accuracy Better than +3%

Hysteresis For 0% to 100% to 0% excursion less than +I %

Temperature Coefficient +0.07% per 1°C

Output 0 - 1V at full scale (most models)

Input Power 12V DC + 2V, 12 ma (most models)

Table 1.2 Temperature Sensor Specifications for 083C-17

Range

Ice Point Resistance, RO

Temperature Coefficient

Time Constant

-SO0 to +50°C (most models)

1000R +4S2 (F.4%) (standard)

.00375R/L2/"C

10 sec.

2.0 INSTALLATION

2.1 If sensor comes mounted in a radiation shield, refer to radiation shield manual section for mounting details. Sensors not furnished in a radiation shield should be mounted in a representative location having good air flow and shaded from sunlight or other heat radiation sources that would affect measurement of relative humidity.

3.0 OPERATIONAL CHECK-OUT AND CALIBRATION

3.1 Relative Humiditv Measurement - 3.2 Relative Humidity Sensor Check-out

1. To verify correct wiring and as a rough test of sensor operation, blow on the sensor. The relative humidity will rise to a higher level.

2. The Relative Humidity Sensor has been calibrated at the factory and will not change unless it is damaged. To check for proper operation of the sensor it is advised that the output signal be checked against a local weather service facility. Exact correlation is not to be expected due to atmospheric and geographical variations.

3.3 Temperature Sensor

1. Compare actual readings with precision mercury thermometer. As an alternative, measure sensor resistance with a Lo Current Digital Ohm Meter and compare readings of temperature vs resistance.

2 . The temperature sensor changes resistance in accordance with the equation:

In applying this formula the actual resistance at ice point is used for calculations, i.e. if the sensor is exactly 1,000 ohms then the equation is

Refer to calibration certificate for exact reading at ice point.

4.0 MAINTENANCE AND TROUBLE SHOOTING

4.1 General Maintenance Schedule*

6 - 12 Month Intervals:

A. Inspect sensors for proper operation per Section 3.0.

B. Clean Relative Humidity sensor element per Section 4.2A.

*Schedule is based on averaae to a m environments.

4.2 083 Relative Humidity Sensor Maintenance and Calibration

Warning: The sensor can be miscalibrated or permanently damaged through improper acts. Do not attempt a repair or calibration if you are unsure of the procedure. Do not touch if you do not know how.

This instrument should operate for an extended period of time with a minimum of care or maintenance. If parts or maintenance assistance are required, contact Met One Instruments Inc. Obtain shipping instructions before returning any unit.

A. Maintenance t

Cleaning the Sensor Element. Unscrew the filter. Dust and other particles may be removed by gently blowing on the sensor chip. DO NOT USE COMPRESSED AIR. After dusting, the sensor element may be wiped clean with a soft brush dipped in distilled water. DO NOT USE DETERGENTS. DO NOT APPLY POWER TO THE SENSOR WHEN CLEANING, and do not re-connect power to the sensor until the element has dried. CAUTION: NEVER TOUCH THE SENSOR CHIP WITH BARE HANDS.

The life of the sensor is related to the environment in which it operates. In a pure air and water vapor surrounding, the sensor element will have an indefinite life. The presence of chemical pollutants in the environment may corrode the materials of the sensor chip. The polymer material is resistant to most chemical attacks, but the metal electrodes, are sensitive to corrosion effects, particularly when a DC voltage is applied to the sensor. The most harmful pollutant has been sulphur dioxide absorption in small soot particles. When such particles fall on the thin metal electrode, they may, if water condensation is present, form traces of sulphuric acid to corrode the surface of the sensor. For these reasons, a careful cleaning as described in the preceding paragraph is recommended whenever the sensor has been exposed to corrosive pollutants. Also, a periodic cleaning every two weeks with an atomizer of distilled water, thoroughly washing the chip clean, may remove harmful particles before they can damage the sensor. Be sure that no power is applied when washing the chip and that power remains off until after the chip has dried.

Replacement of Sensor Element. If the sensor element has been damaged, it can be easily replaced. Disconnect power to the probe. Unscrew the sintered bronze filter. Un-solder the old chip and solder a new one in its place. The sensor chip is very delicate, so observe the following precautions. DO NOT TOUCH THE CHIP WITH BARE HANDS. Handle the chip only by gripping its lead with pliers. When soldering, hold the lead with the pliers to prevent the heat from the soldering operation from damaging the chip. Do not bump the chip when reinstating the protective grid.

3. After replacement of the sensor element, the humidity probe must be recalibrated.

B. Humiditv Probe Calibratio~.

1 . Before attempting to recalibrate the probe, make sure that the translator module containing the signal conditioning electronics is still properly calibrated. If 0% and 100% do not produce corresponding readings on the indicator, recalibrate the translator module.

2. The calibration method described in this instruction manual is based on the constant water vapor pressure over saturated salt solutions and constant temperature. Materials used for the calibration are Lithium +

Chloride (LiCI) and Sodium Chloride (NaCI). The former creates a humidity of approximately 13% and the latter approximately 76% in 68°F (20°C) ambient temperature. Both of these chemical agents are available from drug stores, pharmacies, and other chemical suppliers. To guarantee accurate calibration, the salts must be of high purity.

TEST EQUIPMENT REQUIRED:

2 Calibration Bottles: HM-111 -CG-L and HM-111 -CB-N Lithium Chloride Salts, Reagent Grade 1 Sodium Chloride, Reagent Grade 1 Thermometer to measure ambient temperature Distilled water

3. Pre~arations for Calibration

Cithil~m Chloride: 13% RH

1 . Open the bottle which has the label LiCI. 2 . Pour Lithium Chloride into the bottle up to the level marked by

the line on the bottle. 3. Slowly pour distilled water over the chloride until all the chloride

is thoroughly wet and a clear layer of water can be noticed above the chloride.

4 . Close the bottle tightly and check that the rubber plug is tight in its sleeve on the cork.

5 . Let the bottle cool down to ambient temperature, so that the liquid and the atmosphere above the liquid in the bottle has the same temperature as the room atmosphere. The relative humidity value is than about 13% RH. For accurate work, let the cooling go on for 24 hours.

Sodium Chloride: 76% RH

1 . Open the other bottle marked NaCI. 2. Pour sodium chloride into the bottle up to the level marked by

the line on the bottle. 3 . Pour distilled water over the chloride until a 1 cm. thick layer of

water is above the chloride. 4. Close the bottle tightly and wait for 24 hours. After that time, the

relative humidity should be approximately 97%.

The calibration bottles can be used for up to one year without changing fresh chemicals. The bottles should be stored in a place with constant temperature, so as to have them ready for use with just a short preparation time. It is not necessary to shake the bottle with salt solution before use. Care should be taken to see that there are no droplets of salt solution inside the mouth piece of the bottle. This might affect the accuracy of the calibration. Do not get any salt solution on the sensor element directly.

TABLE 4-1 Calibration Tables

LITHIUM CHLORIDE

Ambient Temperature OC 1 0 1 5 2 0 2 5 3 0 3 5 4 0

Calibration Value % RH 14.3 13.8 13.4 13.0 12.8 12.7 12.6

SODIUM CHLORIDE

Ambient Temperature OC 1 0 1 5 2 0 2 5 3 0 3 5 4 0

Calibration Value % RH 75.2 75.3 75.5 75.8 75.6 75.5 75.4

C. CALIBRATION FOR LOW HUMIDITY (13% RH)

1. Unscrew the sintered bronze filter. Do not bump the sensor element while removing the grid.

2 . Take the lithium chloride (LiCI) bottle, pull out its rubber plug, and push the sensor probe in its place in the cork's sleeve. The sleeve fitted with a safety flange prohibits the probe from falling through.

3. Read the ambient room temperature.

4. Note the humidity percentage from the lithium chloride calibration table, which corresponds to the temperature in question.

5. After 1 hour, read the humidity value, If the reading differs from the table value, adjust R15, zero adjust.

6 . After use, close the bottle tightly with the rubber plug.

D. CALIBRATION FOR HIGH HUMIDITY (76%) t

Repeat the calibration procedure as described above, but now using the sodium chloride.

E. Repeat steps C and D until no further adjustments are required.

51 O O X I RELATIVE HUMIDiTY CALIBRATOR

1 . I Suitable for ell probes. Calibration by means of iithium chloride end sodium chicride saturated salt solutions. Bottles for salt solutions in metal box providing stable temperature. Due to the minimal space of air above the salt solution no ventilation is needed. Solid construction. Humidity and Temperature scale for each salt solution printed on the box lid. A thermometer situated between the salt bottles in the box provides a very reliable calibration.

- Calibrztor before setting up

INSTRUCTIONS FOR USE

PREPARATIONS FOR CALIBRATION

Open the lid of the metal box by removing the screws.

Pick up the rubber plugs from the box.

Cut the perforated holes in the plastic lids with a knife.

Preparing the saturated salt solution:

a. Pour distilled water in the salt bottle labelled LiCl up to the lower edge of the black guide line.

Solution Level \

Water Level

Salt Solution Bottle

b. Add lithium chloride carefully in small quantities until the solution reaches the level of the upper edge of the guide line simultaneously stirring the solution which is getting quite warm.

c. The other solution sodium chloride NaCl is made in the same way. When NaCl is dissolving the solution is cooling down.

Place the plastic lids on the bottles and put the plugs tightly into the calibration hole. t

Close the metal box by fastening the lid with the screws.

Let the calibrator stay closed for 24 hours to let the temperature differences stabilize.

The salts will hold good in the bottles for about one year.

+12 VOLT POWER

1 ESCRIPTICII

PROD REL EO 1191

'

SENSOR END TRANSLATOR END

ITEM PART NO. DESCRIPTION W Y

1 1 500351 1 CONNECTOR. 6 PIN. FEMALE 1

2 480500

CABLE. 5 COND.. SHIELDED

SLEEVINC. 1/4". SHRINK

CLAMP I

SOLDER CUP VIEW

3 1 600193 1 LUG. SPADE. I6 8

IDENTIFY CABLE 18" FROM EACH END. DASH NUMBER = LENGTH IN FEET,

I 8 I 900075 I SLEEVING. 1/8". SHRINK I AIR I I I I

I MET ONE INSTRUMENTS

8 980000 SLEEVINC. 1/4". CLEAR SHRINK

I ASSY. CABLE, RELATIVE

6" 7

A/R

HUMIDITY AND TEMPERATURE sE FH M. lDYGN]. 234-8 Pi7

A

9 I I I 980510 WIRE. 22 AWC. IWT/BRN

M DOCUMENT 090D-9800

1600 Washington Blvd. Regional Sales & Service Grants Pass, Oregon 97526 3206 Main St., Suite 106 Telephone 541 -471 -71 1 1 Rowlett, Texas 75088 Facsimile 541 -471 -71 16 Telephone 972-41 2-471 5

Met One Facsimile 972-412-471 6

Instruments

Barometric Pressure Sensor Model 090D Operation Manual

1.0 GENERAL INFORMATION

1 .I 090D Barometric Pressure Sensor uses an active solid-state device to sense barometric pressure. Self-contained electronics provide a regulated voltage to the solid state sensor and amplification for the signal output.

1.2 A 1169-XX Sensor Cable is a 4-conductor shielded, vinyl jacketed cable. Length is given in -XX feet on each cable part number label.

TABLE 1-1

Model 0900-26132-1 Pressure Senscr S~ecif ications

Performance

Calibrated Range 26-32" (standard)* Calibrated Operating Range -18°C to +50°C Operating temperature range -40°C to +50°C Resolution Inf in i te Accuracy 20.04 in Hg (1-1.35 mb) or Accuracy f0.125?& FS Output 0-1V DC (standard)*

*Refer to model number of sensor. Example: 090D -26132 -1

/- I \ Basic Mod # Range ("Hg) Output Voltage

(In this example, the sensor output is 0-lv ior a range of 25 to 32" Hg)


Power Requirement Sensor Output


Weight Dimensions

11 ma @ 12VDC 0-1 VDC Standard 0-5 VDC Optional

2 Ibs. 5 oz. (1.05 Kg) 5.5" x 5" x 7.5" (14x12~19 cm)

4.0 MAIMENANCE AND TROUBLESHOOTING

4.1 General Maintenance Schedule.

A. Inspect pressure inlet port occasionaily to insure it is free of obstruction. No other periodic maintenance or calibration is required.

8. lnspect sensor for proper operation per Section 3.1

4 .2 09CD Pressure Sensor Maintenance. The pressure sensor is an inherently stable device that does not require periodic service or recalibration. Should service or recalibration become necessary, the sensor must be returned to the factory. Always inspect Model 090D Pressure Sensor to make sure that inlet port is clean and free from obstructions.

RODFL 090D BAROM~TKIC PR€5+.Rk 5ENWR CABLE CCNb4EC-T I ON5

(See Section 2.2)

1600 Washington Blvd. Grants Pass, Oregon 97526 Telephone 503-471 -71 11 Facsimile 553-471 -71 16

Met One Instruments

Regional Sales & Service 3206 Main St., Suite 106 Rowlett, Texas 75088 Telephone 21 4-41 2-4747 Facsimile 21 4-41 2-471 6

Model 370C/372C Tipping Bucket Rain Gauge is an accurate, sensitive and low- maintenance sensor designed to measure rainfall on a continuous basis. Water does not collect in the sensor, but is drained each time an internal bucket fills with 0.01 inch of rainfall (standard calibration). At this time, a switch closure pulse is also sent to the translator module or datalogger for counting. The sensor is calibrated at shipment and requires no adjustments after mounting.

Sensor Cable is a vinyl-jacketed 2-conductor shielded cable connecting to the sensor via an internal terminal strip. Cable length is designated in -xx feet on each cable part number label.

Table 1-1 Model 370@/372C Rainfall Sensor Soecifications

Calibration (std) .01" Rain per switch c~osure Calibration (options) 0.2rnn-1, 0.25rnm, Calibration (Model 3726) O.5rnm

Accuracy + I % at 1" to 3" per hour a",7C" F

Switch Type Magnet & Reed

Mounting

Dimensions

3 Pads for I /4 " bolts ~n 9-21/32?" (9.66") circle diameter

13-114" high, 8" diameter not including mounting pads

Weight, less cables 6.7 lbs13 kg (10 Ibs shipping wlcables)

INSTALLATION i

Chmse a site where the height of any nearby trees or other objects above the sensor is no more than about twice their distance from the sensor. A uniform surrounding of objects (such as an orchard) is beneficial as a wind break. Nonuniform surroundings (such as a nearby building) creates turbulence which affects accuracy.

Using washers for shims, mount the sensor level on a platform or tower, using the built-in level as an aid; Three 1/4" diameter boits are used to mount the unit on a 9- 24132Vo l t circle.

2.3 Remove shipping restraint (This may be tape, rubber band, or similar ifern) from sensor bucket and verify that bucket RIGVeS freely and that all adjusting screws are tight.

Connect the signal cable lugs to the terminal strip i f not connected already. Polarity is not important.

2.5 Wepiace cover on sensor, tightening screws at base. Route cable to transaator or b atalogger.

2.6 If this rain gauge is part of a Met One Instruments weather station, refer to System Interconnect Diagram for connection of signal cable to translator or datalogger.

3.1 The sensor is factory calibrated; recalibration is not required unless damage has occurred or the adjustment screws have loosened. To check or recalibrate, peeorm the following steps:

a Check to be sure the sensor is level.

b. Wet the mechanism and tipping bucket assembly. Using a graduated cylinder, slowly pour the measured quantity of water through the inner funnel to the tipping bucket, which should then tip, Repeat for the alternate bucket. If both buckets tip when filled with the measured quafitity of water, the sensor is properly calibrated. I f they do not, recalibrate as follows:

1 . Release the lock nuts on the cup adjustments. 2, Move the adjustment screws down to a position that would place the bucket

far out of calibration. 3. Allow the measured quantity of water to enter the bucket. 4 . Turn the cup adjustment screw up until the bucket assembly tips, Tighten

the lock nut. 5. Repeat atsteps 3 and 4 for the opposite bucket.

easure the quantity of water necessary to tip each bucket several times to ensure proper calibration.

3.2 After installation and calibration (if necessary), replace the cover on the gauge.

Calibration Quantiirites

TIP Caiibration Water Quantity

0.01" (standard) 8.24 milliliters 0.2mm 6.49 milliliters 0.25mm 8.1 I milliliters 0.5mm (klodef 3726) 46.2 millili'rers

4.1 General aintenance Schedule*:

At six month intervals, perform the foliowing steps:

a Clean sensor funnel and buckets. b. Do NOT lubricate the pivots, as any lubricant may attract dust end dirtand cause

wear of the jewel bearings. c. Verify that buckets move freely and that translator card or databgger regisie7s

0.01'' (or as calibrated) for each bucket tip.

"Based on to adverse environments.

Model 370@/3726 Rain Gauge Parts List

Part No.

Assembly, Tip Bucket (.OIn, .2mm, .25mrn) Assembly, Tip Bucket (0.5mm, Model 372) Pin, Pivot Barrier, Strip - 3 pos. Nut, Crown, Nylon #8-32 Screen, Base Screen, Primary Top Clamp, Liquid-Tight Reed Switch Cartridge Adjustable Magnet Bracket Lightning Protection Diode Standard Cable Assembly Cable Assembly (for use with Autornei) Screen, Secondary Assembly, HousingJFunnel 8" Fmt

FIGURE 1

The accurate measurement ofrain and snow precipitationremains one of the most basicelements of meteorology. Toenable accurate measurementof precipitation in all environ-ments, Met One Instrumentsprovides a series of instru-ments incorporating a tippingbucket mechanism. The tip-ping bucket design allowsaccurate, repeatable measure-ments, requires no regularoperator maintenance, and iseconomical and proven ino p e r a t i o n .

Features■ Jeweled bearings■ Teflon coated bucket■ Reed switch■ S e l f - e m p t y i n g■ Corrosion resistant materials■ Quality construction

Each model in the series isoptimized to meet a particularsite and sampling requirement.

OperationA dual-chambered tippingbucket assembly is locatedbelow the collection funnel.When a precise amount ofprecipitation has been col-lected in one side of thebucket, gravity tips theassembly and activates areed switch. A momentaryelectrical contact closurethrough the switch is provid-ed for each increment of rain-fall. The sample is dis-charged through the base ofthe gauge. For environmentsthat can typically expect a

significant amount of frozenprecipitation, internal sensorheaters are available. Theheating elements are thermo-statically controlled to meltand measure the water con-tent of snow and frozen rain,but to avoid evaporative loss.

ConstructionThe heavy machined alu-minum base provides a stableplatform for the tipping assem-b l y. The bucket is made fromstainless steel and is Te f l o ncoated to prevent retention of

The Model 370 Rain Gauge



Precipitation Gauges

300Series

the sample. The bucket pivotsare precision machined andfitted with jeweled bearings toreduce wear and friction. T h efunnel is powder coated alu-minum and has two screensfor preventing leaves andother debris from entering orclogging the gauge. A c i r c u l a rbubble-level and adjustablefeet facilitate proper mountingof the unit. Major componentsare finished in catalyzedpolyurethane paint, with acolor and texture chosen toallow the sensor to blend intothe environment.

Precipitation Gauges - REV. 9/1/97

Specifications

Rain GaugesModel Number Funnel Diameter Standard Calibration Optional Calibration370 8 in (20.3 cm) 0.01 in 0.2 or 0.25 mm372 8 in (20.3 cm) 0.5 mm N/A380 12 in (30.5 cm) 0.01 in 0.2 or 0.25 mm382 12 in (30.5 cm) 0.1 mm N/A

Rain and Snow GaugesModel Number Funnel Diameter Standard Calibration Optional Calibration Heater Voltage375 8 in (20.3 cm) 0.01 in 0.2 or 0.25 mm 115 VAC, 315 watts376 8 in (20.3 cm) 0.01 in 0.2 or 0.25 mm 220 VAC, 315 watts377 8 in (20.3 cm) 0.5 mm N/A 115 VAC, 315 watts379 8 in (20.3 cm) 0.5 mm N/A 220 VAC, 315 watts385 12 in (30.5 cm) 0.01 in 0.2 or 0.25 mm 115 VAC, 315 watts386 12 in (30.5 cm) 0.01 in 0.2 or 0.25 mm 220 VAC, 315 watts387 12 in (30.5 cm) 0.1 mm N/A 115 VAC, 315 watts389 12 in (30.5 cm) 0.1 mm N/A 220 VAC, 315 watts

Thermostat Set Point: Funnel Heater 40°F (4.4°C)Base Heater 40°F (4.4°C)

Heaters: Funnel 240 watts, composite with built-in thermostatBase 75 watts, composite with built-in thermostat

Operating Temperature: -50°C to +50°CAccuracy: at 0.5”/hr ±0.5%

at 1” to 3”/hr ±1.0%Switch: Type Reed

Rating 10 mA, 28 VDCHeight: 8 in Gauges 18 in (46 cm)

12 in Gauges 20.5 in (52 cm)Weight: 8 in Rain Gauges 6 lbs (2.7 kg)(not including cabling) 12 in Rain Gauges 7.5 lbs (3.4 kg)

8 in Rain/Snow 6.5 lbs (3 kg)12 in Rain/Snow 11.5 lbs (5.2 kg)

Shipping Weight: 8 in Rain Gauges 8.5 lbs (3.9 kg)(not including cabling) 12 in Rain Gauges 10 lbs (4.5 kg)

8 in Rain/Snow 9 lbs (4 kg)12 in Rain/Snow 14 lbs (6.4 kg)

Finish: White gloss/beige textured powder coat and clear anodized aluminum

Ordering InformationSpecify Model Number, calibration factor, cable length(s), and accessoriesCable: Signal PN 1566-xx (xx=length in feet)

Power (as required) PN 2517-xx (xx=length in feet)

AccessoriesModel 820440 Wind Screen: The improved Alter-design screen is constructed of 32 free-swinging,

separated leaves. It can greatly improve the accuracy of the precipitation catch by reducing local turbulence.

1600 Washington Blvd. Grants Pass, Oregon 97526 Telephone 541-471-71 11 Facsimile 541 -471-71 16

Met One Instruments

Regional Sales & Service 3206 Main St,, Suite 106 Rowlett, Texas 75088 Telephone 21 4-41 2-4747 Facsimile 21 4-41 2-471 6

0

096-1 SOLAR WADlATlOM SENSOR

GENERAL INFORMATION

The Model 096-1 Solar Radiation Sensor is an accurate and sensitive sensor using a LI- COR sensing element and designed for the continous measurement of solar radiation. Typically, the sensor is mounted with the 1259 Mounting Plate.

Spectral Response. The relative spectral response of the silicon photodiode does not extend uniiormly o w the full solar radiation range, A. typical respcnse ciirve is presentee' In Figure 1 . I . .The response is very low at 0.4 pm and then iccreases nearly linear to a cutoff near 1 .I pm. Chani;es in the spectral distribution of the incident lighr, coupled with the non-uniform spectral respoiise, can cause errors in the photodiode output. Hul l3 shows that in the 0.4 to 0.7 pm range, the spectral distribution of sun plus sky radiation on a horizonial sirrfsse is remarkably constant even when clear and overcasi days are ccmpared. However, Gates' indicates that the major change in spectral distribution of solar radiation occurs in the near infared where water vapor absorption takes place on cloudy days. Data collected at low solar elevations can show sig~ificant error because of aitered spectral distribution which changes in atmospheric Iransmission. This is a small part oi the daiiy total so the possible observed error usually has an insignificant effect on daily integrations.

The area under the spectral irradiance curve of the source is dirzctiy porportional to the energy received by a horizontal surfsce. Under specific but typic4 conditions, energy received on a completeiy overcast day has beer, estimated to be 11.3% of that received on a clear day, Wheri both spectral distributions are weighied according te a typical responsa curve of a silicon photodiode, the response on this cloudy day is 12.6% Therefore, errors incurred under different sky conditions, due to the spectral response of the photodiode, will be smail. The field tests of Federer and Tanner1 and Kerr, Thurteil and Tanner4 confirm this conclusion.

Calibration. The 096-1 Pyranometer has been calibrated against an Eppley Precision Spectral Pyramonmeter (PSP) of which the calibration is periodically confirmed. The calibration was performed under daylight conditions by a computer sampling of instantaneous readings from the Eppley and LI-COR gyranometers. Instantaneous readings were taken continuously for 10 minutes and then averaged. Sequential ten minute averaging periods were run from sunup to sundown for 3-4 days. These ten minute averages were then evaluated and used to compute an average calibration constant. The uncertainty of calibration is f 5%.

Calibration

Table 1-1 Model 096-1 Solar Radiation Sensor Specifications

Calibrated against an Eppley Pyranometer under natural daylight clear conditions. Absolute accuracy under these conditions is k5%. All sensors are calibrated to wiihin 1% of each other. *

096-1 SR Rev. 7/93

Sensitivity

Linearity

Stability

Response Time (1 0-9096j

Ternpersture D~pendence

Cosine Correciion

Azimuth Error

Sensor Case

Mounting

Typically 80 microamp/1000 watts rn-2.

Ivlaximum deviation of 1% to 3000 watts rn-2.

Less than 2% change over a 1 yesr period.

k .15% per O C rnaxirnlim

Cosine corrected up to 82" angle of incidence.

Less than 1 % over 366" at 45" elevation.

Weather-proof anodized aluminum case with diffuser and stainless steol hardware, Precision level suppiied.

A 1289 Mounting Plete is provided,

2.0 INSTALLATION

2.1 096-1 Solar Radialion Sensor lnsiallation

A. Typically, ?he sensor is mounted to the 1289 Mounting Plate. Refer to Figure 2-1. Using a 1552 Mounting Cianp, the radiation sensor and mounting plsie may be directly mounted to Met One Instrumenis' Model 191 Mcunling Arm, or similar.

B. For proper operation it is necessary that the sensor be lwei. Level the sensor using the three outer screws. Lock into piace using three inner screws.

C. The sensor is supplied with an sliached 1832 cable. The white or red wire is the + signal. The black wire is the common.

3.0 096-1 SOLAR RADIATION SENSOR CHECK-OUT

3.1 Model 096-1 Solar Radiation Sensor has been calibrated at the factory. It will not change unless it is damaged. To check for proper operation of the sensor, expose the sensor to bright sunlight and check datalogger or translator for reasonable output, and then completely cover the sensor with a black tape and check for an output of near zero.

3 . 2 When this sensor is used with a Met One Instruments translator, the trans!atcr calibration is matched to the individual sensor. I f used with dataloggers or other recording devices the use of a terminaiing resistor is required.

3 ,3 Terminating Resistor

A. The resistor is used to convert ths current output signal to a voltege output signal, ar,d is required when the scnsor is connected to millivolt recording dsvices.

E. A precision 100-0 crl50C res'stor has been supplied with the senscr io allow for the correct in~erface betwaen !he sensor and millivoll recording e!ec;ronics (no1 reauired when the 096-1 is iised with the hilet One Irisiiumeqts Traris!a?or circuit cards). Place this resistor in parallel with the signs1 le&s from the sensor. The outpur signal is then equai to:

M v = I * R Where: Mv = Output microvolts I = Output signal in microamps R = Resis;ance in ohms of terminating resistor

.- 4 . I General Itlaintenance Schedule*

A lcspect sensor for proper operation as per Section 3.9.

E. Clean sensor element mcnthiy usicg ciean rag or tissue.

*Schedule is based on average to adverse environments.

REFEFEITES 1. Federer, C.A., and C.B. Tanner,lSSS. A sirnp!e inlegrating pyranometer for measuring daiiy solar

radiarion. J. Geophys, Res. 70, 2301-2306. 2. Gares, D.M.,1965. Radiant energy, its receipt a i d disposal. Meteor. Monogr.,6,No.28, 1-26. 3. Hull,J.N.,1951. Spectral distribuiion of radia4ion from sun and sky, Trans.lllun.Eng.

Scc.(London),l9:21-28. 4 . Kerr, J.P.,G.W Thurtell, and C.B. Tanner,1967. An integraiing pyranometer for ciima~ological

observer stations and mescoscale networks, Journal of Applied MeteoroIogy,6,688-06Sd. .r *.

096-1 SR Rev. 7/93

FIGURE 2-1;

I . . . . . . . . . . . . . . .... ...... a . . . . . . . . . . . ::::::::: 1:;; : : : : : I / : i : ; ; ; ; : j ; ; ; _ ; ; j ; j / ::::::::: j . . . . . . . . . . . . . . . I . . . . . . . . . ........ . . . . . . . . . . . . . . . . . . . . .

:::::::::i::::::::;iii:::::::~::::::;;Y,::::::::l::::::::: L , ...! I . . ,,,..... ............... ............... +. , * , . . I . , . . . . . . . . . . . . . - . . . .- ....... .-.,... ....... ', ,....+,.+ B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....,... ; . . . ; i . . ........................... .....,. ......... : .... 4 1 . . i . . . : ......................................

. I . . . . , . i I . . , . . . . . ................................. l l + : : ; I ; ; 8 , : . . I . . . .................... ..,.,- ...*...,, i : l . " . ' . ".." ' . . ".'..... " ..." ""'..*, ;i:;;:i;; ......................................... .- I!!;::;,: .................................. ~ .............. I . . . . . . . . . . . . . . . . . . . *

Specifications

Solar energy is a significantelement in large-scale atmos-pheric motion, and as aresult, it has an importantplace in meteorology. It isdirectly related to atmospher-ic stability, and is used indetermining stability classesfor pollution studies. Met OneInstruments supplies solarsensors to meet virtually anymonitoring requirement.

Model 095 PyranometerThe Model 095 Pyranometerincorporates a multi-junctiondifferential thermopile and aprecision ground optical glasshemisphere which is trans-parent to wavelengths 0.285to 2.80 microns. It is used forhigh precision, broad band-width measurements of inci-dent solar radiation.

Features■ Differential thermopile

detector■ High accuracy, broad

bandwidth■ Temperature compensated■ Rapid response time■ Built-in leveling devices

The detector element is ofwirebound-plated construc-tion with black and white seg-ments. When exposed tosolar radiation, the differingabsorptivity of the black andwhite surfaces develops atemperature differential. Thethermopile then produces avoltage proportional to thesolar radiation. Built-in ther-mistor circuitry is incorporat-ed to eliminate the effects ofambient temperature.

The Model 095 Pyranometer


Met One Instruments,

Solar Radiation Sensors

The single hemisphericaloptical glass dome has awaterproof seal, but can easi-ly be removed for repairs.The case is cast aluminum,painted white, and is fittedwith a desiccator, circularlevel, and leveling screws. Amounting base with a vertical3/4” IPS pipe simplifies fieldinstallation of the sensor. Thisrugged instrument is capableof withstanding mechanicalvibrations of up to 20 G’s.

Solar Radiation - REV. 9/1/97

Model 095 Spectral Response: Nanometers: 285 - 2800 Microns:0.28 - 2.8Calibration: Integrating hemisphere approx. 1 cal cm-2 min-1, at 25°CSensitivity:** 11 mV/kwatt meter -2, approx.Impedance: 350 ohms, approx.Temperature Depend.: ±1.5% constancy from -20°C to +40°CLinearity: ±1% from 0 to 1400 watts meter-2

Response Time: 5 second (1/e signal)Cosine Response: ±2% from normalization 0°-70° zenith angle; ±5% 70°-80° zenith angleDimensions: 5.75 in (14.6 cm) diam. x 21 in (53.4 cm) h, including mountWeight: 4 lbs (1.8 kg), including mountMounting: Leveling plate and mounting base included.

Requires PN 1552 fitting or similar device.Cable: PN 1138-xx (xx = length in feet)

Model 394 Spectral Response: Nanometers: 285 - 2800 (clear)* Microns: 0.28 - 2.8 (clear)Calibration: Integrating hemisphere approx. 1 cal cm-2 min-1, at 25°CSensitivity:** 9 mV/kwatt meter -2, approx.Impedance: 650 ohms, approx.Temperature Depend.: ±1% constancy from -20°C to +40°CLinearity: ±5% from 0 to 2800 watts meter-2

Response Time: 1 second (1/e signal)Cosine Response: ±1% from normalization 0°-70° zenith angle; ±3% 70°-80° zenith angleDimensions: 5.75 in (14.6 cm) diam. x 23 in (58.4 cm) h, including mountWeight: 9 lbs (4 kg), including mountMounting: Leveling plate and mounting base included.


Model 096 Spectral Response: Nanometers: 400 - 1100 Microns: 0.4 - 1.1Calibration: Against Eppley B&W under natural daylightSensitivity:** 8 mV/kwatt meter -2 with 100 ohm load, approx.Impedance: 100 ohms load (dependent upon sensor sensitivity)Temperature Depend.: ±.15%/degree C, max.Linearity: ±1% from 0 to 3000 watts meter-2

Response Time: 10 microseconds (10% - 90%)Cosine Response: Corrected up to 82° incident angle.

Azimuth error less than 1% over 360° at 45° elevationDimensions: 3 in (7.6 cm) diam. x 19 in (48.2 cm) h, including mountWeight: 1.2 lbs (.54 kg), including mountMounting: Leveling plate and mounting base included.


Model 097 Spectral Response: Nanometers: 250 - 60000 Microns: 0.25 - 60Calibration: Against transfer standard, compared to a tungsten-halide light sourceSensitivity:** 75 mV/kwatt meter -2, approx.Impedance: 4 ohmsResponse Time: 10.5 secondsDimensions: 2.8 in (7.1 cm) w x 2.5 in (6.35 cm) h x 37 in (94 cm)Weight: 3 lbs (1.3 kg), including mountMounting: Mounting plate for support arm includedCable: PN 2437-xx (xx = length in feet)

* Contact factory for other ranges.** Sensitivity varies among sensors of the same type. A calibration certificate is supplied with each sensor.


Model 394 Pyranometer

The precision spectral pyra-nometer is used to measurethe total sun and sky radiation,or a defined wavelength band.It utilizes a circular, multi-junc-tion thermopile protected by aglass hemispheres. The selec-tion of the outer hemispheredetermines the spectral rangeof the sensor.

Features■ Extremely high accuracy■ Circular multi-junction

thermopile detector■ Full or partial band

sensitivity■ Temperature compensated■ Rapid response time■ Built-in leveling devices

The detector element is a cir-cular wirebound multi-junctionthermopile. The junctions arecopper-constantan plated.Built-in thermistor circuitry isincorporated to eliminate thee ffects of ambient temperature.

The hemispherical opticalglass domes have a water-proof seal, but can easily beremoved for repairs. Thecase is cast bronze, enam-eled white, and includes aguard disk. The sensor is fit-ted with a desiccator, circularlevel, and leveling screws. Amounting base with a vertical3/4” IPS pipe simplifies fieldinstallation of the sensor.

Model 096 PyranometerThe Model 096 Pyranometeruses a silicon solar cell mount-ed in a cosine corrected minia-ture head. It provides an eco-nomical solution to the mea-surement of solar radiation foruse in meteorological, agricul-tural and hydrological studies.


Features■ Silicon cell sensing

element■ Extremely rapid response■ Fully cosine-corrected■ Error less than ±5%■ Built-in leveling devices

The spectral response of thesensor is .4 to 1.1 microns(400 to 1100 nanometers).This does not cover the fullrange of the solar spectrum,but the error introduced isless than ±5% under mostconditions of natural daylight.

The cable is directly attachedto the sensor without connec-tors. The sensor is furnishedwith a mounting plate, whichcontains a circular level andadjusting screws. The sup-plied base includes a vertical3/4” IPS pipe to facilitatemounting and field installation.

Model 097 Net RadiometerThe Model 097 Net Radiome-ter is a high output devicedesigned to measure the sumof all incoming radiation lessthe outgoing radiation. This isthe energy retained by thesurface for heating soil andair, plant growth, and waterevaporation. Incoming radia-tion consists of direct beamand diffuse solar radiationand longwave sky radiation.Outgoing radiation is thereflected radiation and terres-trial longwave radiation.

Features■ 62-junction thermopile

detector■ High output/low resistance■ Leveling ball joint with built-

in level■ Balanced long- and short-

wave calibration coeffi-cients

■ Desiccant and purge pointsin support arm

■ No power required■ Linear calibration■ Non-pressurized, easy

replacement of windshields


The spectral response of theModel 097 is 250 to 60,000microns (.25 to 60 nanome-ters). The sensor is extremelysensitive to levelness, and abuilt-in circular level is provid-ed to facilitate proper installa-tion. The mounting arm of thesensor contains the desiccantsupply. Field maintenance issimplified by the designwhich incorporates heavy-duty polyethylene hemispher-ical windshields. The wind-shields are easily replacedand require no pressuriza-tion. The cable is directlyattached to the sensor with-out connectors. The sensor isfurnished with a supportingarm and mounting plate,enabling the sensor to installon any horizontal or verticalpipe having a diameter lessthan 1.5” (38 mm).


Model 394 Pyranometer

The precision spectral pyra-nometer is used to measurethe total sun and sky radiation,or a defined wavelength band.It utilizes a circular, multi-junc-tion thermopile protected by aglass hemispheres. The selec-tion of the outer hemispheredetermines the spectral rangeof the sensor.

Features■ Extremely high accuracy■ Circular multi-junction

thermopile detector■ Full or partial band

sensitivity■ Temperature compensated■ Rapid response time■ Built-in leveling devices

The detector element is a cir-cular wirebound multi-junctionthermopile. The junctions arecopper-constantan plated.Built-in thermistor circuitry isincorporated to eliminate thee ffects of ambient temperature.

The hemispherical opticalglass domes have a water-proof seal, but can easily beremoved for repairs. Thecase is cast bronze, enam-eled white, and includes aguard disk. The sensor is fit-ted with a desiccator, circularlevel, and leveling screws. Amounting base with a vertical3/4” IPS pipe simplifies fieldinstallation of the sensor.

Model 096 PyranometerThe Model 096 Pyranometeruses a silicon solar cell mount-ed in a cosine corrected minia-ture head. It provides an eco-nomical solution to the mea-surement of solar radiation foruse in meteorological, agricul-tural and hydrological studies.


Features■ Silicon cell sensing

element■ Extremely rapid response■ Fully cosine-corrected■ Error less than ±5%■ Built-in leveling devices

The spectral response of thesensor is .4 to 1.1 microns(400 to 1100 nanometers).This does not cover the fullrange of the solar spectrum,but the error introduced isless than ±5% under mostconditions of natural daylight.

The cable is directly attachedto the sensor without connec-tors. The sensor is furnishedwith a mounting plate, whichcontains a circular level andadjusting screws. The sup-plied base includes a vertical3/4” IPS pipe to facilitatemounting and field installation.

Model 097 Net RadiometerThe Model 097 Net Radiome-ter is a high output devicedesigned to measure the sumof all incoming radiation lessthe outgoing radiation. This isthe energy retained by thesurface for heating soil andair, plant growth, and waterevaporation. Incoming radia-tion consists of direct beamand diffuse solar radiationand longwave sky radiation.Outgoing radiation is thereflected radiation and terres-trial longwave radiation.

Features■ 62-junction thermopile

detector■ High output/low resistance■ Leveling ball joint with built-

in level■ Balanced long- and short-

wave calibration coeffi-cients

■ Desiccant and purge pointsin support arm

■ No power required■ Linear calibration■ Non-pressurized, easy

replacement of windshields


The spectral response of theModel 097 is 250 to 60,000microns (.25 to 60 nanome-ters). The sensor is extremelysensitive to levelness, and abuilt-in circular level is provid-ed to facilitate proper installa-tion. The mounting arm of thesensor contains the desiccantsupply. Field maintenance issimplified by the designwhich incorporates heavy-duty polyethylene hemispher-ical windshields. The wind-shields are easily replacedand require no pressuriza-tion. The cable is directlyattached to the sensor with-out connectors. The sensor isfurnished with a supportingarm and mounting plate,enabling the sensor to installon any horizontal or verticalpipe having a diameter lessthan 1.5” (38 mm).

Specifications

Solar energy is a significantelement in large-scale atmos-pheric motion, and as aresult, it has an importantplace in meteorology. It isdirectly related to atmospher-ic stability, and is used indetermining stability classesfor pollution studies. Met OneInstruments supplies solarsensors to meet virtually anymonitoring requirement.

Model 095 PyranometerThe Model 095 Pyranometerincorporates a multi-junctiondifferential thermopile and aprecision ground optical glasshemisphere which is trans-parent to wavelengths 0.285to 2.80 microns. It is used forhigh precision, broad band-width measurements of inci-dent solar radiation.

Features■ Differential thermopile

detector■ High accuracy, broad

bandwidth■ Temperature compensated■ Rapid response time■ Built-in leveling devices

The detector element is ofwirebound-plated construc-tion with black and white seg-ments. When exposed tosolar radiation, the differingabsorptivity of the black andwhite surfaces develops atemperature differential. Thethermopile then produces avoltage proportional to thesolar radiation. Built-in ther-mistor circuitry is incorporat-ed to eliminate the effects ofambient temperature.




Solar Radiation Sensors

The single hemisphericaloptical glass dome has awaterproof seal, but can easi-ly be removed for repairs.The case is cast aluminum,painted white, and is fittedwith a desiccator, circularlevel, and leveling screws. Amounting base with a vertical3/4” IPS pipe simplifies fieldinstallation of the sensor. Thisrugged instrument is capableof withstanding mechanicalvibrations of up to 20 G’s.

Solar Radiation - REV. 9/1/97

Model 095 Spectral Response: Nanometers: 285 - 2800 Microns:0.28 - 2.8Calibration: Integrating hemisphere approx. 1 cal cm-2 min-1, at 25°CSensitivity:** 11 mV/kwatt meter -2, approx.Impedance: 350 ohms, approx.Temperature Depend.: ±1.5% constancy from -20°C to +40°CLinearity: ±1% from 0 to 1400 watts meter-2

Response Time: 5 second (1/e signal)Cosine Response: ±2% from normalization 0°-70° zenith angle; ±5% 70°-80° zenith angleDimensions: 5.75 in (14.6 cm) diam. x 21 in (53.4 cm) h, including mountWeight: 4 lbs (1.8 kg), including mountMounting: Leveling plate and mounting base included.


Model 394 Spectral Response: Nanometers: 285 - 2800 (clear)* Microns: 0.28 - 2.8 (clear)Calibration: Integrating hemisphere approx. 1 cal cm-2 min-1, at 25°CSensitivity:** 9 mV/kwatt meter -2, approx.Impedance: 650 ohms, approx.Temperature Depend.: ±1% constancy from -20°C to +40°CLinearity: ±5% from 0 to 2800 watts meter-2

Response Time: 1 second (1/e signal)Cosine Response: ±1% from normalization 0°-70° zenith angle; ±3% 70°-80° zenith angleDimensions: 5.75 in (14.6 cm) diam. x 23 in (58.4 cm) h, including mountWeight: 9 lbs (4 kg), including mountMounting: Leveling plate and mounting base included.


Model 096 Spectral Response: Nanometers: 400 - 1100 Microns: 0.4 - 1.1Calibration: Against Eppley B&W under natural daylightSensitivity:** 8 mV/kwatt meter -2 with 100 ohm load, approx.Impedance: 100 ohms load (dependent upon sensor sensitivity)Temperature Depend.: ±.15%/degree C, max.Linearity: ±1% from 0 to 3000 watts meter-2

Response Time: 10 microseconds (10% - 90%)Cosine Response: Corrected up to 82° incident angle.

Azimuth error less than 1% over 360° at 45° elevationDimensions: 3 in (7.6 cm) diam. x 19 in (48.2 cm) h, including mountWeight: 1.2 lbs (.54 kg), including mountMounting: Leveling plate and mounting base included.


Model 097 Spectral Response: Nanometers: 250 - 60000 Microns: 0.25 - 60Calibration: Against transfer standard, compared to a tungsten-halide light sourceSensitivity:** 75 mV/kwatt meter -2, approx.Impedance: 4 ohmsResponse Time: 10.5 secondsDimensions: 2.8 in (7.1 cm) w x 2.5 in (6.35 cm) h x 37 in (94 cm)Weight: 3 lbs (1.3 kg), including mountMounting: Mounting plate for support arm includedCable: PN 2437-xx (xx = length in feet)

* Contact factory for other ranges.** Sensitivity varies among sensors of the same type. A calibration certificate is supplied with each sensor.

Service Report 096-1 SOLAR RADIATION SENSOR Met One Instruments, Inc. 1600 NW Washington Blvd. Grants Pass, OR 97526 Ph. 541-471-7111 Fax 541-471-7116 E-mail: [email protected] Parts & Service Description REPAIR AND FIELD MAINTENANCE A complete repair and service department is maintained at our factory in Grants Pass, Oregon, and at our regional service facility in Dallas, Texas. This sensor must be returned to the factory for service and re-certification. Turnaround time for this sensor is generally six to eight weeks. RETURN AUTHORIZATION Prior to any product return, please contact the factory at (541)471-7111 or e-mail [email protected] for a return authorization number (RA). BASIC SERVICE(S)

Ordering No. Description List Price SVC0059 Calibration of 096-1 Consult Factory

REVISION DATE: March 2002

Carefully unpack all components and compare to the packing list. Notify NovaLynx Corporation immediately concerning any discrepancy. Inspect equipment to detect any damage that may have occurred during shipment. In the event of damage, any claim for loss must be filed immediately with the carrier by the consignee. Damages to equipment sent via Parcel Post or UPS require the consignee to contact NovaLynx Corporation for instructions.

If equipment is to be returned to the factory for any reason, call NovaLynx between 8:00 a.m. and 4:00 p.m. Pacific Time to request a Return Authorization Number (RA#). Include with the returned equipment a description of the problem and the name, address, and daytime phone number of the sender. Carefully pack the equipment to prevent damage or additional damage during the return shipment. Call NovaLynx for packing instructions in the case of delicate or sensitive items. If packing facilities are not available take the equipment to the nearest Post Office, UPS, or other freight service and obtain assistance with the packaging. Please write the RA# on the outside of the box.

NovaLynx Corporation warrants that its products are free from defects in material and workmanship under normal use and service for a period of one year from the date of shipment from the factory. NovaLynx Corporation's obligations under this warranty are limited to, at NovaLynx's option: (i) replacing; or (ii) repairing; any product determined to be defective. In no case shall NovaLynx Corporation's liability exceed product's original purchase price. This warranty does not apply to any equipment that has been repaired or altered, except by NovaLynx Corporation, or that has been subjected to misuse, negligence, or accident. It is expressly agreed that this warranty will be in lieu of all warranties of fitness and in lieu of the warranty of merchantability.

NovaLynx Corporation 4055 Grass Valley Highway, Suite 102 Auburn, CA 95602 Phone: (530) 823-71 85 Fax: (530) 823-8997 E-mail: [email protected] Web Site: www.novaly nx.corn

Copyright O 1998 by NovaLynx Corporation

EQUIPMENT CONFIGURATION AND IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . iii

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 INTRODUCTION 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 General Description 1 .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 GaugeDesign 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 Use of Gauge with Evaporation Pan 1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 Evaporation Gauge Tester 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 Automatic Evaporation Pan Refill 2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 SPECIFICATIONS 2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 iNSTALLATlON and Quick Set Information 3 3.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Site Selection 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Leveling the Gauge 3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4 Testing for Leaks 3 3.5 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0 OPERATiON 4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0 CALIBRATION 4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.0 TROUBLESHOOTING 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1 General Inspection 7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Power 7 6.3 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6.4 Float . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 Natural Influences 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.6 Evaporation Pan Maintenance 8

7.0 Drawings And Data Logger Programming !

iii

1.4 Evaporation Gauge Tester ........... Optional To aid the user in the set-up, testing, and reading measurements of the evaporation gauge, NovaLynx has developed a hand-held tester, Model 255-1 10. The tester connects to the evaporation gauge output signal terminal block and converts the sensor's resistance into a Direct Reading of the evaporation pan water level in inches. The tester features an easy-to-read LCD and a mode selection switch. The tester is self-contained and battery-powered, Refer to the operator's manual for the tester for additional information.

, 1.5 Auto ........ Optional

Evaporation gauges are often used with data loggers to collect and store the data at the gauge location until the data is to be transmitted or transferred to the operator's main computer. Novalynx has created an automatic evaporation pan refill device, Model 255-620. If a water supply line or water tank is available at the site, 255-620 will turn on the water, until the pan is refilled to a level of 8 inches. This can be set for daily, weekly, or every few days. The refill occurs at the time that is Set. NovaLynx recommends using a time such as midnight for the refill time, Refer to the automatic refill manual for more information.

0' of 3-Conductor, 24 AWG, Shielded r: 3-pin terminal block, standard (opposite end ~ l f cable terminated to meet

oring equipment interface requirements)

g), Stainless Steel ater input port: 112" NPT coupling, female ase dimensions: 16" triangle with leveling screws

Total resolution: 0.03" (0.76 mm)

340°, +lo (20" Gap ) esistance: I ,000 ohms, 21 0%

rature: -40 to +140° F(-40 to +60GC)

echanical range: 0 to 10" (0 - 254 mm) Electrical range: 0 to 9.44 inches (0 - 240 mm)

mation for V

T Evaporation Gauge should be and unpacked, leveled and cb,tnected to the Evaporation Pan. A Digital VoltKIhm Meter D.V.M. should be Used, but is Not mandatory.

esistance Between The White & Black Wires If You Do Not Have a D.V.M. See Step 6

otate the Sprocket to Read between 40 to 80 ohms.

3. Attach the Float I Chain Asse onto the Sprocket See Dwg. ( Float hanging on Right Side as viewed from the Front )

esting on the ou%d read bed:

5. if the reading Not between 40 to 80 ohms Then, Lift the chain off the sprocket & rotate it as needed one or two gear tooth positions. Replace the chain and repeat step 3 8( 4

I I

I f Back of thk sprbcket

Sprocket .,'-----

Chain 7

Float 6----

4 float Resting on the Bottom

6. SET- UP - If You DO NOT Have a D.V.M.. A White Line is painted on the Back Side of the Sprocket, When Viewed from the Back Side, Rotate the sprocket, so that the White Line is ' pointing at 1 O'clock or 30" ( see dwg. )

7. Attach the Float 1 Chain Assembly onto the Sprocket as Shown. With the Float hanging on Left Side as viewed from the back The float should be Resting on the Bottom .

** Attach the 3 conductor cable to your Data Logger or measuring Device. Refer to the Manual for a more detailed Set-lip Procedure.

Carefully unpack ail of the evaporation gauge. Remove the top cover. The fifty foot cable, and float with chain and counter-weight: are shipped inside the bottom of the gauge housing. Remove the cable assembly from the housing. The float cannot be removed, without removing the PotiGear Assembly housing Use caution when removing packing materials and parts from inside the gauge. Take care to avoid hitting the potentiometer sprocket wheel.

The Novalynx Evaporation Gauge water reservoir is physically connected to the pan by using a 112" diameter pipe. Threaded couplings are provided on both the pan and the gauge. Typically, 112" rigid water pipe is used to connect the gauge to the pan. Flexible tubing may be used, provided it does not deteriorate in outdoor weather conditions.

The gauge should be placed far enough away from the pan and on the North side to avoid casting any shadows or reflections inside or onto the sides of the pan. Shadows will affect the evaporation process.

- Both the evaporation pan and the gauge need to be as level as possible in order to maximize the amount of water that can be poured into and measured in the pan. A level pan will provide uniform exposure of the water to the atmosphere, eliminating uneven depths of water.

The site should be /eve1 and free of nearby obstructions that can cast shadows or reflect sunlight onto the evaporation pan. The pan should be placed upon a wooden platform over soil typical of the area. Level the platform before installing the pan. Place the pan so that the water pipe fitting faces the evaporation gauge. A second platform for mounting the gauge may be needed in order to place the bottom of the gauge at the same elevation as the pan.

3.3 Levelin \

Level the gauge by adjusting the three leveling screws located on the triangular base. With the top cover removed, place a carpenter's levei across the opening and check the level. Adjust the screws until the air bubble in the level is centered. After leveling the gauge look down inside the stillwell to make certain that the float and chain hang down straight and are centered in the gauge. The float must be free to move up and down without making contact with the sides of the gauge.

3.4 Testing for Leaks

After connecting the gauge to the pan and all electrical connections are in place, fill the evaporation pan with the desired amount of water and carefully check all of the joints for leaks. Using Teflon tape or plumbers pipe joint compound at each threaded coupling will help prevent leaks.

3.5 iring

Whenever the gauge is to be used with other equipment, the output signal wiring may vary depending upon the way that the gauge is to be used. The signal and power wires are connected into the gauge through a three-pin terminal block. The terminal block is mounted onto the side of the potentiometer housing. To access the terminal block, the cover must be removed from the gauge. Four screws hold the cover in place. The signal cable is terminated with three spade lugs. The spade lugs are attached to the screws of the terminal block. Refer to the gauge schematic to obtain wiring details. The opposite end of the cable will generally not have a connector attached to it unless one has been ordered for a specific purpose, The ends of the wires will be stripped and tinned.

Refer to the table presented below for wiring details.

Power Input 5 vdc (typical) RED TB PIN 1 -TOP

Evap Signal 0-5 vdc (wiper ) WHITE TB PIN 2 - MIDDLE - Power Ground GND BLACK TB PIN 3 - BOTTOM

The evaporation gauge potentiometer exhibits a varying resistance in response to the motion of the float. Applying a voitage across the potentiometer allows monitoring of the gauge by a data logger or any other electronic voltage sensing instrument. The output signal of the potentiometer can be configured to give an increasing or a decreasing voltage with regards to the changing level of the water. For most systems provided by NovaLynx, the signal is configured so that a decrease in the water level is represented by a decrease in the gauge voltage. The Gauge Will Never Read below - 1.4" This is when the float physically hits the Bottom of the Gauge, and there is still 1.4" of water present. Normal Range is Typically is 3" to 8.5 or 9" , above 9" wind could blow water over the edges, below 3" the Low level of water absorbs more heat from the sun & Bottom Pan Reflections,causing Increased Evaporation

Note: that during winter months when the water may freeze, NovaLynx recommends draining the pan and storing the pan and the evaporation gauge indoors.

Proper calibration of the evaporation gauge is critical to the accuracy of the data as well as to the correct operation of the gauge. Calibration of the gauge is required upon initial installation of the gauge and whenever the gauge is removed from its platform or from inside the evaporation pan. The evaporation gauge must be calibrated in order to set the operating range of the potentiometer and to determine the zero point of the float motion. For data logging systems, the slope and intercept data will be measured or calculated from the calibration of the gauge. After the gauge has been calibrated, the operator needs only to keep track of the amount of water added back into the evaporation pan. With the gauge calibrated, the gauge may be used to measure the amount of water added into the pan each week.

The following procedure is used to properly calibrate the evaporation gauge. Record the calibration values whenever possible in order to check the gauge calibration during the year.

Upon completion of the gauge and pan installation, fill the evaporation pan with approximately eight inches of water. The water height can be checked by using a ruler or a tape measure. Check the evaporation gauge to ensure that the water has filled the stillwell to the correct height inside the gauge.

Disconnect the signal cable from the evaporation gauge. Use a digital ohmmeter to measure the resistance of the pot. across terminal block pins (2) middle (+) and - (3) bottom (-). Rotate the sprocket and you will notice the resistance value changes from 0 to 1000 ohms. Rotate the sprocket slowly until the reading jumps to a floating condition or reads 0. This is the dead band it has a mechanical range of about 20". Some pots may be exactly I K ohm, but most will vary by 5 15 ohms There is a white kine marked on the back side of the sprocket. When this line is Vertical the pot shouie be in the 20" Gap Area.

Check to make certain that the float is hanging down near the center of the evaporation gauge. As viewe face sf the sprocket wheel, sprocket wheel with the counter-weight to the left side of the wheel. A White Line is painted on the Back of the Sprocket, When Viewed from the Back side the Line should be at the 1 O'Clock or 30" when the Float is resting on the bottom of the gauge.

Move the float by hand down toward the bottom of the gauge. As soon as the float contacts the bottom surface of the gauge, hold the float in position and check to see that the chain is straight and tight. The chain must not be moving nor pulled downward other than by the tension exerted by the float. Measure the resistance of the potentiometer.

The potentiometer should be at its point of low resistance for the range of motion of the pot. The resistance should be above zero ohms but may be as large as 150 ohms. If the value appears to be floating or within the deadband of the potentiometer the sprocket wheel must be adjusted with relation to the chain. The potentiometer must not cross into or go beyond the deadband as the float approaches and touches the bottom of the gauge. To adjust the sprocket, allow the float to return to the top of the water. Lift the chain off the sprocket and rotate the sprocket counter-clock-wise, one or two gear tooth positions. Replace the chain and repeat step 4.4. Repeat this step (4.5) until the chain is properly positioned on the sprocket. Observe the ohmmeter to detect any crossover of the deadband as the float is moved downward.

Record the resistance of this Bottom or ZERO position of the float. If the gauge is connected into the monitoring equipment and power has been applied, measure the voltage at this position as well as the resistance, Measure the position of the center of the float with respect to the bottom of the evaporation pan for pan mounted gauges. For gauges mounted outside the pan, measure the water level inside the gauge to the center of the float. Usually, the center of the float is aligned with the center of the threaded pipe fitting on the housing when the float touches the bottom of the gauge.

Move the float back to the top of the water and let go of the float. The center of the float should now be even with the surface of the water. Measure the resistance and voltage of the potentiometer at this position. Also measure the water level at this paint with respec: to the L30t:m of the pan. The resistance of the potentiometer should be high at this point and approaching the 1000 ohm end of the pot. If the chain and sprocket have been properly set, the potentiometer should not move past the 1000 ohm end of the element and stop in the deadband. If it appears that the pot is in its deadband at the top of the water level, then either the sprocket and chain must be adjusted further or else there is too much water in the pan and some water must be drained ..... Typically this Setting should be offset sligthly to avoid going into the Gap Area. When the Pan is Full to the Brim, the Resistance should be between 950 and 995 ohms When the Pan is Empty or < 1%'' Deep .... The resistance should be between 20 to 90 ohms.

At this point the slope and intercept information can be generated and the operating curve of the instrument can be calculated. The operating curve can then be verified by setting the float to several points of water level and by comparing the actual output voltage to the calculated voltage. Remember the Gap is 20" therfore 340"/360° = 0.9444 ..... With a 5.00 volt excitation applied, A 5 Volt reading on the Wiper means 9.44" Not 10.0" The formulas used are:

m = (Y2 - Y,) + (X2 - X,)

where Y is inches of water, X is ohms or volts, rn is the slope of the line and b is the zero offset.

For a range of 10 inches and a potentiometer resistance of 1000 ohms the calculation reveals that b = 0, and rn = 0.00944

For a range of 10 inches and a voltage range of 5 Vdc, b = 0 and n; = 1.88.

If the float range of motion happens to be 1.5 to 8.0 inches, then the output voltage can be calculated as 0.75 and 3.776 volts, respectively. Use the actual values measured in the preceding steps, 4.2, 4.4, 4.6, and 4.7, with the above formulas to determine the operating line of the gauge. The line should be linear allowing calculation of intermediate outputs for known positions of the float.

Always disconnect the reportinglrecording device from its power source before making any changes to the wiring connections. If possible, troubleshoot the gauge immediately whenever any of the following conditions are observed: severe weather has recently occurred; the gauge does not appear to operate normally or exhibits a marked change in performance; the data is missing or appears to be incorrect; the gauge has been dropped - or damaged; water has damaged the wiring or electronic components; water has been allowed to dry out totally in the evaporation pan.Remembera 90" Rotation on the sprocket should indicate a change ot 2.50 inches on your reportinglrecording device, 180" would be a 5.00 inch Change.

If the gauge does not register correctly, first check the power connections. Check the voltage with a voltmeter. Be sure the reportinglrecording device has been powered up correctly. If the reportinglrecording device uses batteries for it's primary source of power, check the batteries to be sure they have sufficient voltage and that they are securely in place. Check the battery terminals to ensure that they are clean and provide solid contact.

6. Cables

Check the sensor cable connections both at the gauge and at the control unit; cable shorts or opens can cause loss of data. If a connection is found to be loose, reattach the wire and check to see if the problem has been corrected. Check for damage to the cable insulation. Replace the cable if it appears that the jacket has been worn or cut open.

Inspect the float and chain to make certain that they have not become entangled. Whenever the evaporation pan has been allowed to empty or dry out completely, the float may tip sideways at the bottom of the gauge and the chain may become kinked at the mechanical connector. Test the motion of the float to ensure that it moves smoothly and freely.

, A number of naturally occurring events can influence the evaporation gauge reading and will appear as errors or as a gauge malfunction. These natural events include animals

the water, birds bathing in the water, leaves and debris fallin into the pan, high level winds, lanre ed rainfall or sno during the night, thermal expansion of the water and metal parts.

Additional errors in the evaporation gauge's measurement may be related to maintenance of the evaporation pan. The pan must be kept free of algae. Plants must not be allowed to grow up and over the edges of the pan. Dirt and dust must not be allowed to accumulate inside the pan. The growth of algae in the evaporation pan can be discouraged by the addition of small amounts of copper sulphate lo the water, however, algae already present

- must be removed by a thorough cleaning of the pan. Most of these problems are alleviated by regular rinsincj sf the pan. In severe cases, spa chemicals may be used to combat algae, however, the addition of chemicals to the water will influence the evaporation

ing months when freezing conditions are likely, ernp , clean, and store pan should be stored indoors. If it must be left in the nced enclosure, it

should be turned bottom side up and secured to the platform with stout rope.

** SAMPLE INPUT INSTRUCTIONS **

( For Campbell Data Loggers CR10 & 1 OX )

For Evaporation Gauge 255-1 00 ( scaled in inches, range 0.00 to 9.44" ) -

With 2500 mv Excitation ,

NOTE: When the Float is touching the bottom of the Evap. Gauge, the chain linkage should be set for a output signal that is slightly positive. ie. 50 to 250 mv

The Evaporation is Normally Calculated as Daily Totals. Example: Start 7.65" after 24 hrs. 6.87" Daily Evaporation = 7.65-6.87 = 0.78 inches per day The Exact Physical Level in the Pan Is Not Needed for Evaporation Measurements. The Difference or Change from on time to another is all that is Necessary

Excite-Delay (SE) (P4) 1: I Reps 2: 5 i: 2500 mV Slow Range 3: 1 SE Channel 4: 01 Excite all reps w1Exchan 1 5: 2 Delay (units 0.01 sec) 6: 2500 mV Excitation 7: 2 Loc [ Evap-inch ] 8: .00377 Mult 9: 0.0 Offset

WIRING CONNECTIONS: Red ........ Connect to E l or E2 or E3 Black ....... Connect to AG ( Analog Ground ) White ...... Connect to SE Channel ( the one that has been programed )

Shield ..... Bare Wire ... Connect to Ground ( if necessary, not required for general operation )

SAMPLE SENSOR SET- UP for the WS-I6 Modular Weather Station (c) NovaLynx Corporation Inc. 2002

Sensor Types

1. Generic 2. Wind Speed 3. Wind Direction 4. Temperature 5. Humidity 6. Pressure 7. Precipitation 8. Solar Radiation 9. Evaporation 10. Soil Moisture 11. Water Level

Select type [ I - 1 I ] or quit [Q]: 9

Select model [I - 11 or quit [Q]: 1

Sensor Input Channel

1. Pulse Counter PI 2. Pulse Counter P2 3. Pulse Counter P3 4. Analog lnput A0 ( fypical input channel) 5. Analog lnput A1 6. Analog Input A2 7. Analog lnput A3 8. Analog lnput A4 9. Analog lnput A5 10. Analog lnput A6 11. Analog lnput A7 12. Analog lnput A8 13. Analog lnput A9

Select channel [I - 131 or quit [Q]: 4

*******************************************x**************************************** - * * * *******x*******************~***~*

GENERIC Data Logger I RTU 1 PLC I Signal Conditioner ( Assuming 5.00 Vdc Excitation Voltage )

The Evaporation Gauge can be set up One of 2 ways 1. Direct Reading of Water level in Pan ..... Example : 1.44" to 9.44" = 2. Direct Reading , with a positive Offset of Water level in Pan Example : 2.50' to 10.00" No 2 is the preferred Method, Because the Gauge will not go into the Gap Area Evap. Measurements are Measured as a Change over time Example : . I . I6 inches per Day The Exact Water Level in the Pan is Not Important, Only the difference in Change

V w = Wiper Voltage V+ = Excitation Voltage L = V w x 0.944 L = level of water inches V+

# I 0 NYLON SPACER PN 7 2 3 1 0 8 i 0 ( X r )

COVER SCPEW 10-32 x 1 / 2 ME? weSiER iCc3

PN 721BE033 ( X C )

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COVER ASSEMBLY PN 10000067

MOUNTING SCREW / 10-32 X 3/8 FAN HEAD PN 72121032 ( X 2 )

/ / /

POT & GEAR HOUSING ASSEMBLY PN 10030330

$10 SPLIT LOCK WASHER /

PN 72340210 (X2)

STRAIN SELIEF PN 41500305

CABLE ASSEMBLY PN 103000247

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NovaLynx Corporation PO Box 240 Grass Valley CA 95945 139Phone: (530) 823-7185 Fax: (530) 823-8997 USA Toll Free: 1-800-321-3577

www.novalynx.com

Evaporation

255-100 Analog Output Evaporation GaugeThe Model 255-100 Analog Output EvaporationGauge is used to determine the evaporation rate bymeasuring the changing water level in an evaporationpan. A standard National Weather Service Class AEvaporation Pan is recommended. The instrumentconsists of a float, pulley, and counterweight attached toa precision 1000-ohm potentiometer mounted through agear assembly in a weatherproof housing. The triangularbase plate is equipped with three leveling screws and abubble level. The potentiometer produces a resistanceoutput proportional to the position of the float which canbe monitored on site using a data logger or a strip chartrecorder, or monitored remotely by telemetry equipment.The gauge can be placed directly in the pan, or connectedto the pan by using the 255-100P/F stainless steel pipeand fittings.

Specifications

Potentiometer:Accuracy: 0.25%Rotation: ContinuousResistance: 1000 ohmsOperating temperatures: -40° C to 60° CLinearity: 0.25%Range: 0-10"

System accuracy: Gauge with pan & pipes ±0.25% over 10" rangeFloat: 4" diameterHeight: 27-1/2"Diameter: 8"Base: 16" triangle with leveling screwsWater input port: 1/2" NP coupling, femaleCable: 3 conductor, 50’ includedWeight/Shipping: 7-1/2 lbs/15 lbs (Box 15" x 15" x 30")


255-100 Analog Output Evaporation Gauge, 50' cable255-100P/F Stainless Steel Connecting Pipe and Fittings for

attaching gauge to pan, 2' pipe + 4' pipe255-100POT Replacement Potentiometer

The Model 255-110 Evaporation Gauge Tester workswith the 255-100 Evaporation Gauge to provide a directreading in inches, corresponding to the output from theevaporation gauge.The tester is used toset-up theevaporation gaugeduring initialinstallation and canbe used to provide adirect reading ofdaily evaporationloss.

Specifications

Range: 0 to 10.00 inchesResolution: 0.01 inchesTemperature range: 0° to 50°C (32° to 122°F)Humidity range: Non-condensingAccuracy: Better than ± 0.25% of readingDisplay: 3-1/2 digit, 7 segment 0.5" high LCDBatteries: 9 V display, 1.5 V testerSize: 5" H x 3" W x 2" DWeight/shipping: 12 oz/2 lbs


255-110 Evaporation Gauge Tester255-100MS 3-Pin MS Connector Option

255-110 Evaporation Gauge Tester

255-100 Analog Output Evaporation Gauge

255-110 Evaporation Gauge Tester

1600 Washington Blvd. Grants Pass, Oregon 97526 Telephone 541 47%-7111

Instruments

Model 455A 1456A Data Logger Smart Keyboard Display

1.0 GENERAL 1NFORMATION

The Met One Instruments dats logger is configured with the 'Smart Keyboa-d Disp!i?yl' on the front panel of the Model 455A. It allows the local operator to examine various locations in the logger and view currerA values of the output channels.

, With the Sma-t Keyboard Dispiay (SKD), in fieid programming of ihe data iooger can be performed. It slso sllows for the operatsr to examine the contents of the data logger encjne CR-lox.

2.0 FUNCTION

The Model 4554 is facisry programmed to record dsia from the various sensors. providing information in the format and repoiring values required by the customer. An internal battery will maintain the intelligence of the system during brief periods of power failure. The Smart Key values are stored in non-volatile memory, and will not be lost. Instantaneous measurements, stored values, time, date, and the internai program signature is easily displayed by ths operator.

3.0 INSTALLATION

lflstaiiation is sasy. since the SKD functton has already been installed at the factory. There are a few items, which will effect the operation of the system, and should be noted.

The fecboy set password ts enter the KD functions is - 1 2 3 4 6 6 7' 8 D

B. CAUTION: When the SKI3 d~spfay is x t ive , communications to the central data system is shut off If communications to the central is lost, check to be sure that the display on the MicroMst 455A is not operatio~al.

4.0 KEY FUNCTION DESCRIPTIONS

A. DISPLAY POWER

This Key controis the dispiay. The data logger functions continue, whether or not the dispiay is operating. Use this key when you want to view inputs, recorded dsta, or charrge programming. Turning off the power to the display also puts the SK3 into "sleepJ' mads, conserving power. When the SKD is first powered up, it will dispby "SELECT FUNCTIGN". This is your indication that the system is ready for you t@ a d further.

When pressed, this key will display the currently setdata logger time. Press again t6 display the current date. The key wifj continue to toggie between time and dale. No modifications to the time or date may be made using this k e y 4 is "read onlyn. It may be depressed a4 any time to check time andlor date.

G. OTHER CONTROLS

1. Keyboard Reset

Should the SMD "Lock-Up" for any reason; pressing the Keyboard Reset button, located behind the front panel, may reset it. The button will be found on the upper [eft side of the interface board.

OPE: This will reset the Keyboard only. Should the data logger "iock", if. will be necessery to disconnect both primary and backup power to the Ioggei: This would eniajl unplugging the power supply and d:'sconnecting the backup battery. This will render the logger ''sfupid': and it will have io be reprogrammed.

2 . Display Contrast

- i o enhance viewing of the LCD display, the contrsst may be adjusted. The Contras: Control

is located on the interface board just above the sensor connectbn terminals. A srnzdl ($0 or #1) Fi-iiliips screwdriver is requirpd 10 change the contrast adjustment.

E. CHANGING THE PASSWORD

Put thi: SKD in the Smart Mode, scroll to CHANGE PASSWORD, and press the "iY' key.

Kev(s) D i s~ lav Shows

? o r & CHANGE PASSWOaD

D ENTER PASSWORD

Enter new password, then "D" VEF?!fY PASSWORD

Re-enter new password, then "D" MODIFY? ?=Y 2 = N

1 SELECT FUNCTION

The password is now changed and you can select another function.

F. EDITING INPUT LOCATIONS

The input labels a-e used in the SCAN iNPiiTS function. First, put the SKD in the Smart Mode. scroll to INPUT LOCATIONS, and press D (as described pieviously).

Dzia logger Measursment I i~put Location O'l thru 28

WS = Dispky Status WB =

+- = Displayed AT = Elank=Not Displayed DT =

RH = RN = BP = SF? = WSCAL=

Units

Wind Speed MPH, KPfi7 m/s Wind Direciion DEG Air Temp DEG Delta Temp DEG Re1 Humidity % Rainfall rn, mrn Earo Press "Hg, kPa, mb Solar Rad Wm2, kWm, Urn 1 min. avg, WS (same as WS)

The UP and DOWN arrow keys will scroll the display through all 28 lnput Locations. Press the "C" key to edit (Change) the location label being displayed. The "A" key will cause the "+" (Display Status) symbol to appear or disappear, resulting in that lnput Location being displayed (or not) when using SCAN INPUTS. k

Use the " -+ " and " c " (side arrows) keys to move the cursor through the display.

The Measurement name (up to 5 characters) and Units name (up to 3 chaiadeisj can be changed by using the " ? " and " $ " (up and down arrow keys). The f ~ l i set of ASCli characters is aiM!able.

When you are finished editing an lnput Location, press the "D (Done) key. YOU can then scroll to another input Location.

H. EDITING THE DATALOGGER PROGRAM WITH THE SKD

Kevs D is~ lav Shows

DISPLAY POWER SELECT FUNCTION

ENTER PASSWORD

READY

The data logger is now ready to accept keypad commands for the CRIOX. Consul: tbe programinins sections of this manual for commands and instructions, (The logger-programmmg manual is not always provided ss pari of this manual, unless requested as part of project If you are editing the data logger program, refer to the program prhtout in the program section of this manuai, ~nciuded with your system.

The central “brain” of the mod-ern weather station is the dataacquisition unit, or DAU. It ishere that the data collected bythe sensors are recorded,manipulated, and stored forfuture use and analysis. T h eDAUs offered by Met OneInstruments, Inc. offer the high-est degree of integration andease of use available today.They are designed to providethe environmental engineer with:

■ A simplified design and procurement procedure

■ A system of guaranteedmatched components

■ The benefits of Met OneInstruments’ field expertise

■ Assurance of compliance

A built-in datalogger, scaleddirectly to the recorded measure-ments, provides an easy to read,permanent record of the mea-sured meteorological variables.

The system includes the data-l o g g e r, the interface board, andpanel-mounted Smart Keyboard/D i s p l a y. Provision is made forthe addition of an optional Stor-age Module for extended memo-ry capability. An RS-232 dataportis available for direct communi-cations with a computer or termi-nal. Amodem may be added tofacilitate remote access of thedatalogger for programming ordata retrieval. Password protec-tion and automatic shutoff of thedisplay provide additional datas e c u r i t y. Standard unit provides12 analog and 2 pulsed signals,expandable with additional ana-

log or digital inputs or outputs.The motherboard includeslightning protection diodes, andprovides a charging functionfor a backup battery (optionalwith the Model 457).

Display Power turns on thekeyboard display and pre-pares the unit for further oper-ator interaction.

Time/Date will return the datalogger time. Press againto display datalogger date.

Scan Inputs key will displaythe data going into the systemin channel #1. By using theArrow keys, other data chan-nels can be viewed.

Scan AVGS key will returnthe data most recently writtento datalogger memory. TheArrow keys allow viewing allthe elements of the array.

SKB - The Smart Keyboard/Display contains “Smart Keys” which offer shortcut communications with the datalogger.

Corporate Sales & Service: 1600 Washington Blvd., Grants Pass, OR 97526, Phone (541) 471-7111, Fax (541) 471-7116Distribution & Service: 3206 Main Street, Suite 106, Rowlett, TX 75088, Phone (972) 412-4747, Fax (972) 412-4716http://www.metone.com


Integrated Data Acquisition Units

455456457

Verify Program key will display the program signa-ture, a number unique to thespecific program. This featurealerts the operator if a changehas been made to the data-logger program.

Program key, which is pass-word protected, allows accessto the datalogger’s native pro-gramming functions and/orthe SKB functions.

Standard equipment includesd a t a l o g g e r, computer inter-face, lightning protection andmemory backup battery(optional with the Model 457),direct sensor hookup, graphicuser interface, and enclosure.D i fferences between modelnumbers relate to featuresand packaging. They are functionally equivalent.

455/456/457 - REV. 9/1/97

Model 455This full-featured device pro-vides virtually everythingneeded for a complete andtotal weather data system. A l lhardware is mounted within ahigh quality compressionmolded fiberglass enclosure.The enclosure is designedspecifically for harsh manufac-turing conditions and hostileenvironments, and will outlaststeel or stainless steel in acorrosive or marine environ-ment. The enclosure meetsand exceeds most NEMAgrade specifications. Doorhinges are molded, with stain-less steel hinge pins. Cableentry is through a port in theenclosure bottom, fitted with asealing clamp. The enclosurecontains a latch with integraltumbler lock for security.

Model 457The Model 457 is competi-tively priced to allow anysized operation to takeadvantage of the functionalityand ease of use of the MetOne Instruments system. Allhardware is mounted withinan economical, attractivegrey fiberglass enclosure.The enclosure features stain-less steel hinge pins andlatches with padlock hasps,and meets NEMA type 4classification. Cable entry isthrough a port in the enclo-sure bottom, fitted with asealing clamp. The backupbattery and lightning protec-tion are optional with thismodel.

Model 456This unit offers all the featuresof the Model 455, but isdesigned for mounting in astandard 19” equipment rack.

The panel height is 7,” andthe minimum depth required is15.” Terminal blocks are pro-vided for direct sensor cable

OptionsTo optimize the unit to yourspecific application andrequirements, a broad rangeof optional configurations and accessory componentsare available.

A complete range of meteoro-logical sensors may beadded to the system, includ-ing, but not limited to, windspeed and direction, temper-ature, relative humidity, solarradiation, and precipitation.Instrument carrying cases areavailable for all sensors.

Expanded memory storagemodules are available forapplications requiring long-term unattended operation.(The standard internal memo-ry will allow recording hourlyaverages of 15 inputs for 130days.) Communication optionsinclude conventional or short-haul modem, interfacingcables, and data manipulationsoftware. A backlit display willallow easy viewing in poorlylighted environments. Due tothe power required, this optionis only available on AC pow-

ered systems. A m u l t i - c h a n n e lgraphic recorder may be inter-faced to the DAU, allowing forhard-copy backup of importantdata. Please consult your MetOne Instruments sales spe-cialist for additional informa-tion on these options anda c c e s s o r i e s .

These units are designed foreasy installation and mainte-nance by non-technical per-sonnel. As with all equipment,technicians and engineersare only a phone call away.

connections. A metal chassiscover or benchtop enclosureis available to allow this modelto function as a benchtop unit.

Specifications Model 455 Model 456 Model 457

EnclosureConstruction Comp’n molded fiberglass 19-inch rack panel Molded fiberglassColor/Finish Beige, textured Beige, textured enamel Grey, smoothChassis Enclosure N/A PN 5787 N/ASecurity Locking latch w/key N/A Padlockable latch

Supplied HardwareTower mount kit Tower mount kit

DimensionsHxWxD, in (cm) 16x12x11 (40x30x28) 7x19x13 (18x48x33) 15x13x7 (39x34x18)Weight, lbs (kg) 11 (5) 8 (3.6) 12 (5.5)Shipping Weight, lbs (kg) 15 (6.8) 12 (5.5) 16 (7.3)

InputsAnalog 12 12 12Pulsed (2) 8-bit or (1) 16-bit (2) 8-bit or (1) 16-bit (2) 8-bit or (1) 16-bitComputations 28 28 28Viewable Elements 20 20 20

Lightning ProtectionStandard Standard Ass’y #2671

SoftwareSensor Basic Software MicroMet Plus MicroMet Plus MicroMet Plus

OptionsPowerStandard (Specify) 115 VAC 115 VAC 115 VAC

230 VAC, 12 VDC 230 VAC, 12 VDC 230 VAC, 12 VDCMemory Backup Battery STD STD PN 2477Solar Power System Consult Factory Consult Factory Consult Factory

ConnectionsWater-tight Glands Optional N/A N/ABottom Port with Clamp Standard N/A StandardTerminal Strips Standard Standard StandardBulkhead Connectors Optional N/A N/A

DisplayLCD, 1 line x 16 char. Standard Standard StandardBacklit (AC only) PN 2456 PN 2456 N/A

Original order only - cannot retrofit backlit display

AccessoriesExpanded Memory96K Datapoints PN 550088 PN 550088 PN 2605 (Incl. 550088)

CommunicationsConventional Modems Yes Yes YesRapid Modems Yes Yes Yes

SensorsAccepts all standard Accepts all standard Accepts all standardmeteorological sensors meteorological sensors meteorological sensors

Logger A

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