JC010 Thermal Mass Gas Flow Meter

The principle is that a fluid flowing past a heated temperature sensor removes a known quantity of heat as it passes.In a thermal flowmeter, the fluid has to pass two temperature sensors.

Product Introduction

The principle is that a fluid flowing past a heated temperature sensor removes a known quantity of heat as it passes.In a thermal flowmeter, the fluid has to pass two temperature sensors. One sensor obtains a reference value by measuring the actual process temperature. The second sensor is a heating element and it receives precisely as much energy as is needed to compensate for dispersed heat and maintain a precisely defined temperature difference.

The higher the mass flow past the heated temperature sensor, the more heat is dissipated and the more power has to be input to the element to maintain the temperature difference.

Heating current, therefore, is a measure of the mass flow of the gas.

Due to the sensor temperature is always 30℃ higher than the medium temperature (environment temperature), and the meter adopts method of constant differential temperature, therefore the meter do not need to do temperature and pressure compensation in principle.


Features

1. Measure mass flow , no need for humidity and pressure compensation.

2. Large rangeability, flow velocity: 0.1 Nm/s~100Nm/s.

3. No pressure drops, applicable to any section pipe.

4. Anti-corrosion, applicable to corrosive gas.

5. Online installation and maintenance.

6. Measures mass flow directly - without additional pressure and temperature inputs

7. Accurate measurement and operation at very low gas pressures and flow rates

8. Negligible pressure drop


Technical Parameters

Insert typePipe type
MediumSingle gas ( except acetylene gas) or mixed gas of fixed
Pipe sizeDN80-6000mmDN15-2000mm
Velocity0.1Nm/s~100Nm/s ( standard working condition 20 ℃101.33Kpa)
Accuracy+1%
Medium temperature-40~200℃
Pressure2.5Mpa4.0Mpa
Power supplyAC220V or DC24V for integral converter and AC220V for split converter.
Response time≦1s
Signal output4~20mA RS-485,Modbus  
DisplayInstantaneous flow, mass flow, volume flow, cumulative flow, Beijing time, running time.
Sensor IP codeIP68
Converter IP codeIP67 for integral typeIP 65 for split hanging typeIP 52 for split box type
Explosion proof degradeExd IΙ CT 4

Model Selection

Code Description Remark
JC010Thermal mass gas flow meter
Dn15, Dn20 ....Diameter :DN15 to 6000
FIn line integral typeStructure
IIn line seperated type
PIInsertion integral type
PLInsertion seperated type
TThreaded ,such as 1/2"NPTConnection
FFlange , such as 2",ANSI
WWelded seat
BWelded  seat + ball valve
A0Without explosion-proofExplosion-proof
A1With Explosion-proof
T1-20 to 150 °C StandardWorking temperature
T2-20 to 200 °C High temperature
P0Negative pressureWorking pressure
P10-1.0Mpa
P20-.1.6 Mpa
P30-2.0 Mpa
P40-3.0Mpa
D24 VDCPower supply
A220 VAC
OOther
0NoneSignal output
14-20ma
2RS 485
34-20ma + Hart
LWith LCDDisplay
OWithout LCD
B316SSSensor material  
LHC
CTi
OOther

How to order

1.Medium

2.Pipe size

3.Flow rate (min/normal/max)

4.Working temperature

5.Working pressure

6.Process connection

7.Power supply

8.Other special requirement


Video

None

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