ESMF009 Manufacturer Direct Sales Digital Gas Flow Meter 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 micro-electromechanical system (MEMS) flow sensing chip,the sensor has the characteristics of high precision, high sensitivity and strong anti-interference.
2.The zero stability of the sensor is greatly improved than that of the common thermal flowmeter.
Ø3.High wide range ratio, and full range has high precision and repeatability.
4.Compared with the traditional mechanical instrument, the pressure loss is greatly reduced and the energy consumption is reduced.
Ø5.The response speed can reach millisecond level.
Ø6.LCD display instantaneous flow and cumulative flow, clear and intuitive, easy to read.
Technical parameters
|
accuracy (%) |
+ 2.0 + 0.2 (FS) |
Medium temperature ( ° C) |
- 10 ~ 55 |
|
Range (L/min scale) |
280;600;1000 |
Pressure loss (Pa) |
2000 or less |
|
Response time (ms) |
50-1000. |
Humidity |
<95%RH(no frost, no icing) |
|
Maximum working pressure (Mpa) |
1.0 |
Connect |
G3/8;G1/2;G3/4 (outer teeth) |
|
Working power supply |
15v-24v 100mA |
Overall power consumption |
< 2.4 W. |
|
Output mode |
4-20mA, pulse (Optional) |
Method of communication |
RS485 (Modbus Protocol) |
|
display |
Instantaneous flow, cumulative flow |
Calibration |
Air (20C, 101.325kPa) |
|
Thermal mass flow meter |
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|
model |
Pipe diameter |
Flow range |
medium |
pressure |
output |
interface |
|
ESMF009-10-280L |
DN10 |
2.8-280L/min |
gas |
≤1.6MPA |
4-20mA/RS485 |
G3/8 |
|
ESMF009-15-600L |
DN15 |
6-600L/min
|
G1/2 |
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|
ESMF009-20-1000L |
DN20 |
10-1000L/min
|
G3/4 |
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Product detail
