Multipoint Insertion Type Thermal Mass Flowmeter K-BAR 2000B GENERAL SPECIFICATION GS.No.GBF110E−1 Head Office (Tokyo): Phone. 81-3-3360-5121. Fax. 81-3-3365-8605 Beijing Office: Phone. 86-10-5867-4711. Fax. 86-10-5867-4713 Overseas Branch Offices: Seoul, Singapore and Taipei http://www.oval.co.jp GENERAL K-BAR2000B is a thermal mass flowmeter for gas measurement. Its measuring principle takes advantage of the fact that calorie amount taken away from the heated sensor by a fluid flow is correlated to the mass flow. The sensor inserted in the pipeline samples and averages the flowrate at multiple points through the pipe to infer the total flowrate. Mass flow computer GENERAL SPECIFICATIONS (SENSOR UNIT) Item Description Operating principle Thermal dispersion Acceptable fluids Air, air-equivalent flue gas, exhaust gas Mounting Flange connection Applicable pipe shape Circular, rectangular Minimum pipe size Circular: 432 mm inner diameter, Rectangular: 356 mm at one side. Maximum pipe size Subject to specifications. Contact OVAL. Orientation Horizontal or vertical Number of sensors 2 to 4 sensors per probe Flow metering range 0 to 55 m/s (normal) w/s (normal) : Flowrate in a pipe converted to normal state Pressure characteristics 0.0036%/kPa Repeatability 0.25% Response Flowrate: Time constant 1s (at 27.5m/s (normal) of flowrate), Temperature: Time constant 8s (at 27.5m/s (normal) of flowrate) Max. operating pressure Less than 1MPa Ambient temp. range (Process) Standard: -40 to +260°C, High temperature service: -40 to +500°C Actual operating temperature range depends on the specifications for flange, pressure, etc. Operating temp. range -40 to +65°C Construction Simple explosionproof (Non-incendive, EExnA II T5) Materials Sensor: Alloy C276 (equivalent to Hastelloy C276) Sensor support: SUS316L (Standard), Alloy C276 (equivalent to Hastelloy C276) Power supply Supplied from mass flow computer (Power supply, display, output are available with dedicated mass flow computer.) Transmission distance Between K-BAR and mass flow computer: Approx. 60m (AWG16: At the time equivalent to 1.25mm 2 ) FEATURES 1. Supports large scale duct and stack. 2. Installation of multiple sensors (four maximum) makes preparation of long straight pipe for large bore pipe unnecessary. 3. Allows measurement of flowrate lower than pitot tube. 4. Measurement is possible at high temperature (260°C and 500°C). 5. High durability by the use of a sensor of all-welded construction. 6. Easy to install. MESAUREING PRINCIPLE ● Fixed temperature difference method In this circuit arrangement, the temperature of velocity sensor (heater) is controlled to maintain a constant temperature difference with respect to the fluid temperature. Since the heat quantity dissipated from the heater is a function of mass flowrate, the mass flowrate can be determined from the required heating power. Thanks to the all-welded sheath pipe, the sensor is protected from contacting external gas. Accordingly, there is no worry of corrosion and it is less affected by dust or mist. K-BAR sensor 7. Wide range of 0 to 55 m/s (normal) 8. Very quick response 9. Concurrent measurement of temperature and mass flowrate at each sensor position 10. Compensation of pressure and temperature is unnecessary.
12
Embed
Multipoint Insertion Type Thermal Mass Flowmeter K-BAR 2000B · 2013-12-05 · Multipoint Insertion Type Thermal Mass Flowmeter K-BAR 000B GBF110E-1 ③ Category C 1) Type 1 Item
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Multipoint Insertion Type Thermal Mass Flowmeter
K-BAR 2000B GENERAL SPECIFICATION
GS.No.GBF110E−1
Head Office (Tokyo): Phone. 81-3-3360-5121. Fax. 81-3-3365-8605 Beijing Office: Phone. 86-10-5867-4711. Fax. 86-10-5867-4713Overseas Branch Offices: Seoul, Singapore and Taipei
http://www.oval.co.jp
GENERALK-BAR2000B is a thermal mass flowmeter for gas measurement. Its measuring principle takes advantage of the fact that calorie amount taken away from the heated sensor by a fluid flow is correlated to the mass flow. The sensor inserted in the pipeline samples and averages the flowrate at multiple points through the pipe to infer the total flowrate. Mass flow computer
GENERAL SPECIFICATIONS (SENSOR UNIT)Item Description
Operating principle Thermal dispersion
Acceptable fluids Air, air-equivalent flue gas, exhaust gas
Mounting Flange connection
Applicable pipe shape Circular, rectangular
Minimum pipe size Circular: 432 mm inner diameter, Rectangular: 356 mm at one side.
Maximum pipe size Subject to specifications. Contact OVAL.
Orientation Horizontal or vertical
Number of sensors 2 to 4 sensors per probe
Flow metering range 0 to 55 m/s (normal) w/s (normal) : Flowrate in a pipe converted to normal state
Pressure characteristics 0.0036%/kPa
Repeatability 0.25%
ResponseFlowrate: Time constant 1s (at 27.5m/s (normal) of flowrate), Temperature: Time constant 8s (at 27.5m/s (normal) of flowrate)
Max. operating pressure Less than 1MPa
Ambient temp. range(Process)
Standard: -40 to +260°C, High temperature service: -40 to +500°CActual operating temperature range depends on the specifications for flange, pressure, etc.
Operating temp. range -40 to +65°C
Construction Simple explosionproof (Non-incendive, EExnA II T5)
MaterialsSensor: Alloy C276 (equivalent to Hastelloy C276)Sensor support: SUS316L (Standard), Alloy C276 (equivalent to Hastelloy C276)
Power supply Supplied from mass flow computer (Power supply, display, output are available with dedicated mass flow computer.)Transmission distance Between K-BAR and mass flow computer: Approx. 60m (AWG16: At the time equivalent to 1.25mm2)
FEATURES 1. Supports large scale duct and stack.2. Installation of multiple sensors (four maximum) makes
preparation of long straight pipe for large bore pipe unnecessary.
3. Allows measurement of flowrate lower than pitot tube.4. Measurement is possible at high temperature (260°C
and 500°C).5. High durability by the use of a sensor of all-welded
construction.6. Easy to install.
MESAUREING PRINCIPLE ● Fixed temperature difference methodIn this circuit arrangement, the temperature of velocity sensor (heater) is controlled to maintain a constant temperature difference with respect to the fluid temperature.Since the heat quantity dissipated from the heater is a function of mass flowrate, the mass flowrate can be determined from the required heating power.Thanks to the all-welded sheath pipe, the sensor is protected from contacting external gas. Accordingly, there is no worry of corrosion and it is less affected by dust or mist.
K-BAR sensor
7. Wide range of 0 to 55 m/s (normal)8. Very quick response9. Concurrent measurement of temperature and mass
flowrate at each sensor position10. Compensation of pressure and temperature is
unnecessary.
�
GBF110E-1Multipoint Insertion Type Thermal Mass Flowmeter K-BAR �000B
■FACTORY CALIBRATION ACCURACYTemp. compensation Process temperature Accuracy
※1: When temperature compensation is standard, temperature characteristic X or Y is added to accuracy.※2: VTM Velocity-Temperature Mapping※3: Flowrate is outside the object of guaranteed accuracy.
■ALLOWABLE TEMPERATURE RANGEFlange temperature - pressure standard (P-T rating)The allowable temperature - pressure range usable based on the flange specification is as shown below.When temperature exceeds 450°C, contact OVAL.
Temperature JIS 10KASME150
SUS316L Alloy C-276
to 300°C Less than 1.0MPa Less than 1.0MPa Less than 1.0MPa
325°C - 0.93MPa or less 0.93MPa or less
350°C - 0.84MPa or less 0.84MPa or less
375°C - 0.74MPa or less 0.74MPa or less
400°C - 0.65MPa or less 0.65MPa or less
425°C - 0.55MPa or less 0.55MPa or less
450°C - 0.46MPa or less 0.46MPa or less
475°C - - 0.37MPa or less
500°C - - 0.28MPa or less
■MAXIMUM RATED FLOWRATE QmaxThe maximum measurable flowrate is calculated from the following formula. Qmax = 55 × A × 3600 = 198,000 × A [m
3/h(normal)]
where A = Cross section area of piping [m2]
■MINIMUM SENSITIVITY FLOWRATE, LOW CUTTMinimum sensitivity flowrate: 0.1m/s (normal)Standard low cut: 3% of maximum rated flowrate (1.65m/s (normal))(Note): Standard low cut can be set as you like.
■DIMENSIONS OF MOUNTING SECTION (FTIW)Regarding the dimensions (FTIW) of mounting section, user is requested to advise us of them at the stage of considering the specification. FTIW (Flange To Inner Wall) means the distance from pipe inner wall to the edge of nozzle flange (including gasket thickness). When the pipe is newly installed or no specific indication is given, FTIW = 102mm (gasket thickness 2mm) is applied as standard.
FTIW
�
GBF110E-1Multipoint Insertion Type Thermal Mass Flowmeter K-BAR �000B
■CONSTRUCTION AND MOUNTING SYSTEMK-BAR is categorized by the construction and mounting system.Choose the best construction and mounting system considering the operating condition.
(1) ConstructionNo. of segments Max. applicable size Outline view Remarks
Type 1 1 6,090mm
All-Hastelloy is applicable.
Type 2 2 9,100mm
Hastelloy is applicable at flange and only limited parts below flange
Type 3 3 10,600mm
Hastelloy is applicable at flange and only limited parts below flange.
※ � � in the above figure indicates a sensor.
(2) Category
Duct shape Probe length Probe fixing system
Category A
Circular
Half span (Duct dia./2) Held at one side
Category B
Full span (Duct dia.)
Held at one side
Category C Held at both sides (with a holder outside pipe wall)
Category D Held at both sides (with a holder inside pipe wall)
Category E
Rectangular
Half span (Duct dia./2) Held at one side
Category F
Full span (Duct dia.)
Held at one side
Category G Held at both sides (with a holder outside pipe wall)
Category H Held at both sides (with a holder inside pipe wall)
(3) Sensor Electronics (Preamp.)
Model Mounting place Remarks
Integral type 196TA-4B K-BAR probe
Separate type190-4B K-BAR probe Terminal box
196TS-4B Fixing stanchion or the like Converter
※1: In case of separate type, the distance between terminal box (190-4B) and converter (196TS-4B) shall be 4.5 m max.※2: Whether it is integral type or separate type, shielded wire for instrumentation shall be used for all
wiring and shall be placed inside a conduit made of metal.
�
GBF110E-1Multipoint Insertion Type Thermal Mass Flowmeter K-BAR �000B
4 to 20mADC or 0 to 5VDC, Max. 8 outputsResolution: 12 bitMax. load resistance: 850Ω (when loop voltage 24VDC is supplied from outside) 400Ω (when loop voltage is supplied from inside)
GBF110E-1Multipoint Insertion Type Thermal Mass Flowmeter K-BAR �000B
• Model: 155E-2610
1·1/4” NPT female× 3 places
165
571.5
221
19
122 122 122 122
802.6762
183
φ10.4×4
336
1733/4” NPT female screw
363
■EXAMPLE OF WIRING
Output (To higher stage)
Power supply
155
155→K-BAR: Power supply 24VDCK-BAR→155: Each sensor output (4 to 20mA)
K-BAR
■PRECAUTIONS FOR INSTALLATION● If the metered fluid contains dust and mist in large
quantities, provide a filter, separator, or the like upstream of the meter.
● Avoid meter installation near the compressor, blower, reducing valve, etc. Or pulsations, sound noises, etc. may produce large measurement errors. If installation near the source of pulsations is unavoidable, take effective countermeasures into consideration to attenuate pulsations by installing a buffer tank, accumulator, etc. between the meter and the noise source.
● Avoid installing in locations difficult to access for maintenance and servicing, subject to large temperature changes and excessive vibration, possibly immersed in water, atmosphere of corrosive gases, and unacceptable for the service environment of this meter.
● In an installation in a vertical piping and outdoors, use the cable entry at the bottom to prevent rainwater from entering through cable entry.
● A plastic blind plug for simple sealing is attached to the wire-connecting port at the time of shipment. This blind plug is provided for protecting the flowmeter during transportation and has no waterproof feature. Before installing the product, never fail to replace it with a blind plug to meet the installation environment.
Approx. weight: 34.0kg approx
Unit: mm
10
GBF110E-1Multipoint Insertion Type Thermal Mass Flowmeter K-BAR �000B
• PRODUCT CODE (Part No.)
① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ ⑬
① Model Code
K-BAR 2000B-HT 753731
K-BAR 2000B-HHT 753732
K-BAR 2000BP-HHT 753733
② Category Code
Category A A
Category B B
Category C C
Category D D
Category E E
Category F F
Category G G
Category H H
③ Duct Size Code
Duct inner dia. (4 digits) ※1
④ Sensor Electronics Code
Integral type A
Separate type B
⑤ Construction Code
Type 1 (1 segment) 1
Type 2 (2 segments) 2
Type 3 (3 segments) 3
⑥ Output Code
Standard C
With HART communication ※2 E
⑦ FTIW Code
FTIW dimension (3 digits) ※4
⑧ Temperature compensation Code
Standard (-40 to +125°C) A
Standard (0 to +260°C) B
VTM (0 to +260°C) ※4 C
VTM (0 to +260°C) ※4 D
⑨-1 Number of sensors Code
2 sensors 2
3 sensors 3
4 sensors 4
⑨-2 Sensor materials Code
Hastelloy C276 3
Hastelloy C276(Titanium nitride coating) 7
⑩ Flange size ※5 Code
40A (1・1/2″ ) H
50A (2″ ) J
65A (2・1/2″ ) L
80A (3″ ) N
90A (3・1/2″ ) Q
100A (4″ ) S
150A (5″ ) U
⑪ Flange materials Code
SUS316L 2
Alloy C276 3
⑫ Calibration flow range Code
1.4 m/s (normal ) A
2.8 m/s (normal ) C
4.7 m/s (normal ) E
9.3 m/s (normal ) G
14.0 m/s (normal ) I
18.6 m/s (normal ) K
28.0 m/s (normal ) M
41.9 m/s (normal ) P
56.0 m/s (normal ) R
⑬-1 Segment 1 materials Code
SUS316L※6 2
Alloy C276※6 3
⑬-2 Segment 2 materials Code
None (in case of L2=0) 0
SUS316L※6 2
⑬-3 Segment 3 materials Code
None (in case of L3=0) 0
SUS316L※6 2
⑬-4 FTIW materials Code
SUS316L※6 2
Alloy C276※6 3
Footnotes:
※1
Diameter (inch) of circular duct and duct side length (inch) of rectangular duct in the direction of BAR insertion are multiplied by 10 times and rounded into 4 digits.Example) When inner dia. of circular duct is 8000mm, 8000nn equals 314,96inches. Multiplying it by 10 equals 3149.6. This is rounded to 3150.
※2
As the meter with HART communication has no temperature output, monitoring of temperature is not available with mass flow computer. In addition, HART communication with mass flow computer or the higher-level device is not available.
※3
FTIW dimension (inch) is calculated to the value of one decimal point, multiplied by 10, and rounded to 3 digits.Example) When FTIW = 102mm, 102mm equals 4.02 inches. It is multiplied by 10 to get 40.2, and rounded to 040 in 3 digits.
※4VTM:Velocity - Temperature Mapping
※5 ANSI/ASME B16.5 flange is a standard (Raised face flange: RF only)
※6 Combination of usable materials is limited by the specification.
Note) Round off at one decimal place is adopted for the number.
■PRODUCT CODE1. SENSOR UNIT• MODEL DIVISION
Type Description
ModelK-BAR 2000B- Multipoint insertion type mass flowmeter
K-BAR 2000BP- Multipoint insertion type mass flowmeter (Purge type)
Process temperature rangeHT For standard (-40 to 260°C) ... Note: Purge type is not applicable.
HHT For high temperature (-40 to 500°C)
11
GBF110E-1Multipoint Insertion Type Thermal Mass Flowmeter K-BAR �000B
PRODUCT CODE (Part No.)
① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪
① Model Code
155A 750206
155B 750235
155C-2 750257
155E-2 750272
② 4 to 20mA output Code
None 88
1 output 04
2 outputs 05
4 outputs ※1 06
6 outputs ※1 07
8 outputs ※1 08
③ 0 to 5V output ※2 Code
None 88
1 output 01
2 outputs 02
4 outputs 04
6 outputs 06
6 outputs 08
④ Contact output Code
None 88
Alarm × 4 ※3 05
Alarm × 8 ※4 06
Alarm × 4 + pulse × 2 ※3 12
Alarm × 8 + pulse × 8 ※4 14
⑤ Zero/span check Code
Provided 06
⑥ Power supply Code
115VAC 50/60Hz 01
230VAC 50/60Hz 02
24VDC※5 03
⑦ Communication Code
RS-232C 88
RS-232C (for printer) ※6 01
RS-485 ※7 03
⑧ Printer Code
None 88
Provided ※8 05
⑨ Software Code
Standard (US system) 01
Standard (SI system) 11
Flow Perfect (US system) 02
Flow Perfect (SI system) 12
⑩ Input CH (loop-powered) Code
Number of channels (2 digits)
Footnotes:
※1 Only 155C-2 and 155E-2
※2 Number of outputs must always be the same as those of (2) 4 to 20mA output.
※3 Only 155A and 155B
※4 Only 155C-2 and 155E-2
※5 Only 155A and 155C-2
※6 Only the product with optional printer
※7 Only 155C-2 and 155E-2
※8 The type of ⑦ communication must always be 01 for the product with printer.
⑪ Input CH (4 - 20mA) Code
Number of channels (2 digits)
⑫ Number of meters Code
Number of channels (2 digits)
2. TRANSMITTER• MODEL DIVISION
Type Description
155Mass flow computer
Installed outdoor Rack-mount Connecting sensors DC power supply Zero / span check
A ○ --- 4 max. ○ ○
B ○ --- 4 max. ○
C-2 ○ --- 8 max. ○ ○
E-2 ○ --- 8 max. ○
GBF110E-1Multipoint Insertion Type Thermal Mass Flowmeter K-BAR �000B
The specification as of Nov., 2013 is stated in this GS Sheet. Specifications and design are subject to change without notice.
Sales Representative:
GS.No.GBF110E
初版 改訂 印刷1�.11
■When you make inquiries, please state the following:(Fill in the blanks or check □ with ✓ mark.)