ESMF001/2 LCD Display Micro Thermal Gas Mass Flow Meter
Working Principle
The MEMS sensor consists of two patch platinum resistors, one measuring the temperature of the gas in the pipe and the other heated by an electric current, keeping the temperature difference between the two thermal resistors constant. As the gas flows through the thermal resistance, there is a cooling effect. As the flow rate increases, the cooling effect increases and the sensor power required to keep the temperature difference between the two thermal resistors constant increases.The power added to the heating resistance is proportional to the mass flow rate
Product Features
1.Using MEMS flow sensor chip, the sensor has the characteristics of high precision, high sensitivity and strong anti-interference.
2.This product has display screen and setting buttons, which is easy to operate and read directly. (optional)
3.The zero point stability of the sensor is greatly improved compared with the ordinary thermal flow meters.
4.Full range high stability.
5.Full range precision and excellent repeatability.
6.Combined with structural optimization, the flow meter can greatly reduce pressure loss and energy consumption compared with traditional mechanical instruments.
7.LCD display instantaneous flow and cumulative flow, clear and intuitive, easy to read.
8.4~20mA standard signal output and second impulse output to choose.
application scenarios
1. Industrial furnaces and burners gas flow monitoring and control
2. Laboratory gas ratio and leak detection
3. Gas metering for equipment such as air compressors, nitrogen generators, and oxygen generators
4. Environmental waste gas emission monitoring and food packaging gas pipeline monitoring
Product detail
PRODUCT SPECIFICATIONS
|
Model Number |
ESMF001 / ESMF002 |
|
Measurement accuracy |
±1.5%FS |
|
Working pressure |
<1.0MPA |
|
Response time |
50-1000MS |
|
Working power supply |
15v-24v 100mA |
|
Signal output |
4-20mA |
|
communication |
RS485 Modbus |
|
Power supply voltage |
15-24VDC |
|
Display format |
instantaneous flow, cumulative flow |
|
Working temperature |
-10~55°C |
|
Operating humidity |
<95%RH (no frost, no icing) |
|
Electrical interface |
aviation plug standard 1 meter |
|
Shell material |
aluminum alloy |
|
Thermal mass flow meter |
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Model |
Pipe diameter |
Flow range |
medium |
pressure |
output |
interface |
|
ESMF002-0801L |
DN8 |
50-1000ML/MIN |
gas |
≤1.5MPA |
4-20mA/RS485 |
G1/4 |
|
ESMF002-0803L |
50-3000ML/MIN |
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ESMF001-1030L |
DN10 |
0.3-30L/MIN |
G3/8 |
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ESMF001-1050L |
0.5-50L/MIN |
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|
ESMF001-1070L |
0.7-70L/MIN |
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|
ESMF001-10230L |
2.3-230L/MIN |
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