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Insert Type Air Thermal Mass Gas Flow Meter sensor
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Insert Type Air Thermal Mass Gas Flow Meter sensor

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Application
Thermal gas mass flow meter is designed on the basis of thermal dispersion, and adopts method of constant differential temperature to measuring gas flow. It has advantages of small size, easy installation, high reliability and high accuracy, etc.
发布时间
2022/07/29 17:43
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Products Description
     Thermal gas mass flow meter is designed on the basis of thermal dispersion, and adopts method of constant differential temperature to measuring gas flow. It has advantages of small size, easy installation, high reliability and high accuracy, etc. 
     The meter contains two platinum resistance temperature sensors. The thermal principle operates by monitoring the cooling effect of a gas stream as it passes over a heated sensor. Gas flowing through the sensing section passes over two sensors one of which is used conventionally as a temperature sensor, whilst the other is used as a heater. The temperature sensor monitors the actual process values whilst the heater is maintained at a constant differential temperature above this by varying the power consumed by the sensor. The greater the gas velocity, the greater the cooling effect and power required to maintain the differential temperature. The measured heater power is therefore a measure of the gas mass flow rate.
 
Main Features:
     1、Different gas coefficient arbitrarily set.
     2、Show multiple sets of values.
     3、Output analog calibration.
     4、Multi-point non-linearcurve correction.
     5、Wide range ratio measurement 50:1 / 100:1 /max1000:1.
     6、Large diameter small flow accurate measurement.
     7、On-site instrument can be set.
     8、Close to zero pressure loss of the closed sensor.
     9、Straight pipe requirements smaller, 1D-2D canachieve high-precision measurement.
     10、Measured value and pressure has nothing to do,the real mass flow detection.
     11、Expert algorithm to achieve high precision and stability of the instrument less than one second response time.
     12、LCD display, with Multiple display interface.
Product Paramenters
Measuring Medium
Various gases (Except the acetylene)
Pipe Size
DN10~DN4000mm
Velocity
0.1~100 Nm/s
Accuracy 
±1~2.5%
Working Temperature 
Sensor: -40℃~+220℃ 
Transmitter: -20℃~+45℃
Working Pressure
Insertion Sensor: medium pressure≤ 1.6MPa 
Flanged Sensor: medium pressure≤ 1.6MPa 
Special pressure please contactus
Power Supply
Compact type: 24VDC or 220VAC, Power consumption ≤18W 
Remote type: 220VAC, Power consumption ≤19W
Response Time 
1s
Output
4-20mA (optoelectronic isolation, maximum load 500Ω), Pulse, RS485 (optoelectronic isolation) and HART
Alarm Output
1-2 line Relay, Normally Open state, 10A/220V/AC or 5A/30V/DC
Sensor Type
Standard Insertion, Hot-tapped Insertion and Flanged
Construction
Compact and Remote
Pipe Material
Carbon steel, stainless steel, plastic, etc
Display
4 lines LCD 
Mass flow, Volume flow in standard condition, Flow totalizer, Date and Time, Working time, and Velocity, etc.
Protection Class 
IP65
Sensor Housing Material 
Stainless steel (316)

Specification
Connection
DN10~DN4000mm
Application range
Gas
Materials
SS316L
Process temperature
-40℃~+220℃
Operating pressure
1.6MPa~6.3MPa Max Customize to 42MPa
Accuracy
±1~2.5%
Power supply
24VDC、220VAC
Output
4-20MA、RS485、Pulse、HART
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