ESMF006 Portable Flow meter Digital Mass Flow Controller For Pharmaceutical R&D Labs
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
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
Technical parameters
|
Measurement accuracy |
Plus or minus(1.5+0.2FS)% |
Working power supply |
DC24V/200mA |
|
Response time |
1-5S |
Output mode |
4-20mA\RS485 |
|
Zero drift |
±20mv |
Display format |
Instantaneous flow,cumulative flow |
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Operating temperature |
-10~55℃ |
Operating humidity |
<95%RH(no frost, no icing) |
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Storage temperature |
-10~65℃ |
Communication methods |
RS485(Modbus RTU protocol) |
|
Working pressure |
1.0Mpa or less |
Calibration medium |
Air (25°C, 101.325kPa) |
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Model |
ESMF006 |
ESMF006 |
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Body material |
F0 |
anodized aluminum, |
F0 |
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F1 |
304 |
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F2 |
316 |
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Flow range |
S0 |
1~100SCCM |
S0:1~100SCCM |
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S1 |
5~500SCCM |
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S2 |
10~1000SCCM |
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S3 |
0.1 ~ 10 SLPM |
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S4 |
0.3 ~ 30 SLPM |
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S5 |
0.5 ~ 50 SLPM |
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S6 |
1~100SLPM |
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S7 |
2~200SLPM |
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S8 |
3~ 300SLPM |
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Mechanical interface |
GN0 |
G1/4 internal thread |
GN0:G1/4 internal thread |
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PT2 |
PT1/2 internal thread |
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NT |
NT is a special custom thread |
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Input signal |
P0 |
4-20mA (default) |
P0:4-20mA (default) |
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P1 |
1-5V |
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P2 |
RS485 |
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Output signal |
N0 |
RS485 and 4-20mA (default) |
N0:RS485 and 4-20mA (default) |
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N1 |
RS485 and 1-5V |
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N2 |
RS485, 4-20mA, pulse |
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Type of media |
Air |
Measure the type of medium, AIR is air (default), N2 is nitrogen, O2 is oxygen, CO2 is carbon dioxide, MG is mixed gas |
AIR |
Product detail
