THERMO-HYGROMETER CA846 · The Thermo-Hygrometer Model CA846 is a portable, compact digital meter designed for simplicity and one-hand operation. The meter uses an NTC ... (Includes

THERMO-HYGROMETER

E N G L I S H User Manual

CA84699 Washington Street Melrose, MA 02176 Phone 781-665-1400Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

http://www.testequipmentdepot.com/

Statement of Compliance

Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments certifies that this instrument has been calibrated using standards and instruments traceable to international standards.

We guarantee that at the time of shipping your instrument has met its published specifications.

An NIST traceable certificate may be requested at the time of purchase, or obtained by returning the instrument to our repair and calibration facility, for a nominal charge.

The recommended calibration interval for this instrument is 12 months and begins on the date of receipt by the customer. For recalibration, please use our calibration services.

Serial #: ________________________________

Catalog #: 2121.24

Model #: CA846

Please fill in the appropriate date as indicated:

Date Received: _________________________________

Date Calibration Due: _______________________

Thermo-Hygrometer Model CA846 1

Table of Contents

ENGLISH .................................................................................................1ESPAÑOL ..............................................................................................13

1. INTRODUCTION ............................................................................... 21.1 International Electrical Symbols ................................................21.2 DefinitionofMeasurementCategories .....................................31.3 ReceivingYourShipment ..........................................................31.4 OrderingInformation .................................................................3

2. PRODUCT FEATURES ...................................................................... 42.1 Description ................................................................................42.2 PushButtons ............................................................................5

2.2.1 Center(Yellow)FunctionSwitch ...................................5

2.2.2 Back-Light and°C/°FButton ...................................52.2.3 MAXButton ...................................................................52.2.4 HOLDButton ................................................................5

3. SPECIFICATIONS............................................................................. 63.1 EnvironmentalSpecifications ....................................................63.2 MechanicalSpecifications ........................................................73.3 SafetySpecifications ................................................................7

4. OPERATION .................................................................................... 84.1 Recommendations ....................................................................84.2 OperatingtheModelCA846 .....................................................8

5. MAINTENANCE ............................................................................... 95.1 ReplacingtheBattery ...............................................................95.2 Cleaning ....................................................................................9

RepairandCalibration ...........................................................................10

Technical and Sales Assistance ............................................................10

Limited Warranty ...................................................................................11

WarrantyRepairs ...................................................................................11

2 Thermo-Hygrometer Model CA846

CHAPTER 1

INTRODUCTION

Warning

• Do not connect to, or touch, any electrical circuit with theThermo-Hygrometer.

• Toavoidinjuryorfirehazard,donotoperatethisproductinanexplosiveatmosphereorenvironment.

• Remove (unscrew) the protective metal tube covering thesensorheadwhenusingtheThermo-Hygrometer.

• DonotimmersetheThermo-Hygrometersensorheadintoliq-uids-thismaycausepermanentdamagetothesensors.

• Screwontheprotectivemetal tubecoveringthesensorheadwhennotusingtheThermo-Hygrometer.

1.1 International Electrical SymbolsThis symbol signifies that the instrument is protected by double or reinforced insulation.This symbol on the instrument indicates a WARNING and that the operator must refer to the user manual for instructions before operating the instrument. In this manual, the symbol preceding instructions indicates that if the instructions are not followed, bodily injury, installation/sample and product damage may result.Risk of electric shock. The voltage at the parts marked with this symbol may be dangerous.This symbol refers to a type A current sensor. This symbol signifies that application around and removal from HAZARDOUS LIVE conductors is permitted.

In conformity with WEEE 2002/96/EC


1.2 Definition of Measurement CategoriesCat. I: Formeasurementsoncircuitsnotdirectlyconnected to theAC

supplywall outlet such as protected secondaries, signal level,andlimitedenergycircuits.

Cat. II: Formeasurements performed on circuits directly connected totheelectricaldistributionsystem.Examplesaremeasurementsonhouseholdappliancesorportabletools.

Cat. III: For measurements performed in the building installation atthe distribution level such as on hardwired equipment in fixedinstallationandcircuitbreakers.

Cat. IV: For measurements performed at the primary electrical supply(<1000V) such as on primary overcurrent protection devices,ripplecontrolunits,ormeters.

1.3 Receiving Your ShipmentUponreceivingyourshipment,makesure that thecontentsareconsis-tentwith thepacking list.Notifyyourdistributorofanymissing items. Iftheequipmentappearstobedamaged,fileaclaimimmediatelywiththecarrierandnotifyyourdistributoratonce,givingadetaileddescriptionofanydamage.Savethedamagedpackingcontainertosubstantiateyourclaim.

1.4 Ordering InformationThermo-Hygrometer Model CA846 ..................................Cat. #2121.24Includes meter, shockproof holster, 9V battery and user manual.


CHAPTER 2

PRODUCT FEATURES

2.1 DescriptionTheThermo-HygrometerModelCA846isaportable,compactdigitalmeterdesignedforsimplicityandone-handoperation.ThemeterusesanNTCasthetemperaturesensorprovidingexcellentresponsetimetochangesintemperature,goodrepeatabilityandaccuratereadings.

TheModelCA846alsoutilizesathin-filmpolymer-capacitivetyperelativehumidity sensorashygrometersensor,offeringexcellent recovery from100%moistureandfastresponsetimeanddurability.

1. Temperature/humiditysensorwithprotectivesensorcover

2. 3½digitdisplay

3. MAXbutton

4. °C/°Fselector&backlight

5. HOLDbutton

6. Power/mode selector

1

2

3 5

64


2.2 Push Buttons

2.2.1 Center (Yellow) Function Switch

TurnsONtheThermo-Hygrometerandselectsthe%RHor°C/°Fsetting.SlidethebuttontoOFFafteruse.

2.2.2 Back-Light and °C/°F Button

• Pressthe buttontoturntheBack-LightON.

• Pressthe buttonagaintoturntheBack-LightOFF.

• Pressthe buttonfor2secondstochangethetemperaturescaleto°Cor°F.Thetemperaturescale°Cor°Fisdisplayedinthelowerrighthandcornerofthedisplay.

2.2.3 MAX Button• PresstheMAXbuttontoentertheMAXmode.The“MAX”annunciator

appearsintheupperrighthandcornerofthedisplay.• Theselectedrange(%RHor°C/°F)recordsandupdatesthemaximum

absolutevalues.• PresstheMAXbuttonagaintoexittheMAX-recordingmode(“MAX”

goesout).• TheHOLDbuttonmaybeusedintheMAXmodeto“Freeze”(nolonger

updates)theMAXmeasurementonthedisplay.

2.2.4 HOLD ButtonTheHoldbutton“freezes”thereadingonthedisplay.Pressthe“HOLD”buttontotoggle(activate/release)HOLD.IntheHOLDmode,the“HOLD”annunciatorisdisplayedintheupperpartoftheLCDdisplayandthelastreadingisdisplayeduntilreleased.


CHAPTER 3

SPECIFICATIONS

3.1 Environmental SpecificationsTemperature Scale:Celsius(°C)orFahrenheit(°F)user-selectable

Temperature Sensor: NTC

Measurement Range:-4°to140°F,-20°to60°C

Resolution: 0.1°F/°C

Accuracy: -4° to 32°F ± 2°F (-20° to 0°C ± 1°C)32° to 140°F ± 1°F (0° to 60°C ± 0.5°C)

Temperature Coefficient:0.1timestheapplicableaccuracyspecificationper°Cfrom0°to18°Cand28°to50°C(32°to64°Fand82°to122°F)

Humidity Sensor:Electroniccapacitancepolymerfilmsensor.(Thesensorisunaffectedbywatercondensation,andisimmunetomostreagentvapors)

Measurement Range: 0% to 100% RH

Resolution: 0.1% RH

Accuracy (@ 25°C): 10%-90% RH ± 5.0% 0%-10% RH; 90% to 100% RH ± 10.0%

Sensor Response Time for 90% of Range:60stypical

Sensor Stability:±2%RH,2yearstypical

Sensor Hysterisis (10% to 90% to 10% RH):±1%RHtypical

Sensor Temperature Dependence:Negligiblefrom32°to140°F(0°to60°C)

Operating Temperature:32° to 122°F (0°C to 50°C) at < 80% RH

Storage Temperature:-4°to140°F(-20°to60°C),0to80%RHwithbatteryremoved


Accuracy:Statedaccuracyat23°C±5°C,<90%RH

Altitude: 2000m max

3.2 Mechanical SpecificationsDisplay:3½digitliquidcrystaldisplay(LCD)withmaximumreadingof1999

Over-Range:“OL”isdisplayed

Low Battery Indication: The isdisplayedwhenthebatteryvoltagedropsbelowtherequiredlevel

Sample Rate: 2.5timespersecond,nominal

Input Protection:24VDCor24Vrmsmaximuminputvoltageonanyinput

Power Supply:Standard9Vbattery(NEDA1604,IEC6F22006P,orequivalent)

Battery Life:200hourstypicalwithcarbonzincbattery

Dimensions:6.81 x 2.38 x 1.5" (173 x 60.5 x 38mm)

Weight:Approx7oz(197g)includingbattery

3.3 Safety Specifications

EN61010-1(1995-A2),ProtectionClassIII

OvervoltageCategory(CATIII,24V),PollutionDegree2

Indoor Use

*All specifications are subject to change without notice


CHAPTER 4

OPERATION

4.1 Recommendations• Forreliablemeasurements,letthereadingsstabilize.Thehygrometer

andtemperaturesensormustreachequilibriumwiththemediummea-sured.

• Avoid temperature measurement errors induced by too short mea-surementtime,sunshineduringthemeasurement,heating,coldouterwalls,airdraft(e.g.fans),radiatingsourcesincludinghandand/orbodyheat,etc.

• Avoidhumiditymeasurementerrorsinducedbysteam,watersplashes,drippingwaterorcondensationonthesensor,etc.

• Avoidsensorcontaminationinducedbyparticlesintheairormeasure-mentsinpowderlikesubstances.Contaminationmaybeavoidedbymeasuringthroughafilter(usersupplied).Thefiltermustbecleanedorreplacedperiodically,dependinguponthedegreeofcontaminationatthemeasurementsite.

4.2 Operating the Model CA8461. Unscrewtheprotectivemetaltubecoveringthesensor.

2. Setthepowerswitchtothedesired%RHor°C/°Frange.

3. Letthereading(s)stabilize(%RHtakesatleast60secondstoreach90%).

4. Readthedisplay.

5. Afteruse,screwtheprotectivemetaltubebackontothesensor.

6. TurntheinstrumentOFFwhenfinished.


CHAPTER 5

MAINTENANCE

Use only factory specified replacement parts.AEMC® will not be held responsible for anyaccident, incident, ormalfunction followinga repairdoneotherthanbyitsservicecenterorbyanapprovedrepaircenter.

5.1 Replacing the Battery The symbolappearsontheLCDdisplaywhenreplacementisneeded.Replacewithastandard9Vbattery(NEDA1604,IEC6F22).

Toreplacethebattery:• TurntheThermo-HygrometerOFF.• Removetherubberholster.• Removethescrewfromthebackofthemeterandliftoffthebattery

cover.• Replacethebattery,thenputtherearcoverandholsterbackon.

5.2 Cleaning• Useasoftclothlightlydampenedwithsoapywater.

• Rinsewithadampclothandthendrywithadrycloth.

• Donotuseanyabrasivesorsolvents.

• Donotletanyliquidenterthecaseorsensorarea.


Repair and CalibrationToensurethatyourinstrumentmeetsfactoryspecifications,werecommendthatitbescheduledbacktoourfactoryServiceCenteratone-yearintervalsforrecalibration,orasrequiredbyotherstandardsorinternalprocedures.

For instrument repair and calibration:Youmust contactourServiceCenter foraCustomerServiceAuthorizationNumber(CSA#).Thiswillensurethatwhenyourinstrumentarrives,itwillbetrackedandprocessedpromptly.PleasewritetheCSA#ontheoutsideoftheshipping container. If the instrument is returned for calibration,weneed toknowifyouwantastandardcalibration,oracalibrationtraceabletoN.I.S.T.(Includescalibrationcertificateplusrecordedcalibrationdata).

(Orcontactyourauthorizeddistributor)Costsforrepair,standardcalibration,andcalibrationtraceabletoN.I.S.T.areavailable.NOTE: You must obtain a CSA# before returning any instrument.

Technical and Sales AssistanceIfyouareexperiencinganytechnicalproblems,orrequireanyassistancewiththeproperoperationorapplicationofyourinstrument,pleasecall,mail,faxore-mailourtechnicalsupportteam:

NOTE: Do not ship Instruments to our Foxborough, MA address.


Limited WarrantyTheModelCA846iswarrantedtotheownerforaperiodofoneyearfromthedateoforiginalpurchaseagainstdefectsinmanufacture.Thislimitedwarrantyis given by AEMC® Instruments, not by the distributor from whom it waspurchased.Thiswarrantyisvoidiftheunithasbeentamperedwith,abusedorifthedefectisrelatedtoservicenotperformedbyAEMC® Instruments.

For full and detailed warranty coverage, please read the Warranty Cov-erage Information, which is attached to the Warranty Registration Card (if enclosed) or is available at www.aemc.com. Please keep the War-ranty Coverage Information with your records.

What AEMC® Instruments will do:If a malfunction occurs within the one-year period, you may return theinstrument to us for repair, provided we have your warranty registrationinformation on file or a proof of purchase.AEMC® Instruments will, at itsoption,repairorreplacethefaultymaterial.

Warranty RepairsWhat you must do to return an Instrument for Warranty Repair: First, requestaCustomerServiceAuthorizationNumber (CSA#)byphoneorbyfaxfromourServiceDepartment(seeaddressbelow),thenreturntheinstrumentalongwiththesignedCSAForm.PleasewritetheCSA#ontheoutsideoftheshippingcontainer.

Caution:Toprotectyourselfagainstin-transitloss,werecommendyouinsureyourreturnedmaterial.

NOTE: You must obtain a CSA# before returning any instrument.


NOTES:

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

TestEquipmentDepot.com

http://www.testequipmentdepot.com/

THERMO-HYGROMETER CA846 · The Thermo-Hygrometer Model CA846 is a portable, compact digital meter designed for simplicity and one-hand operation. The meter uses an NTC ... (Includes

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