Lefoo Low Differential Pressure Transmitter LFM108
Low differential pressure transmitters and low cost pressure sensorcontroller of LEFOO pressure control have a wide application for air-conditioning/ventilation, duct static pressure measurement, filter and flap control, airflow control, cleanroom control, Lab/Fume hood control, airflow control, VAV and fan control, smoke hood control, furnace airflow control, oven pressurization, fluid, level monitoring, Isolation rooms monitoring, environmental protection, air blower, air cleaning or pneumatic feed lines. energy management systems.
The low differential pressure transduceris ideal for the application of monitoring the vacuum pressure, a gauge pressure of air with differential pressure, such as natural gas, and especially low pressure of non-corrosive gases.
Specification of Low Differential Pressure TransducerLFM108
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Air Differential Pressure Transducer |
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Note: Better accuracy performance than ±1%F.S is optional |
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General |
Value |
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Pressure Range |
0～±100Pa, 0～±1,000Pa, 0～±10,000Pa |
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Overpressure capacity |
5KPa, 10KPa, 80KPa |
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Accuracy |
±1%F.S |
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Operating temperature |
－20℃~70℃ |
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Response time |
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Cable Connector |
Cable maximum diameter Ø8mm |
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Stability |
Typical value：0.1%F.S Maximum value:0.2%F.S |
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Protection Level |
IP54 |
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Electrical connections |
Three-wired |
Four-wired |
Five-wired |
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Output signal |
4~20mA |
0~5VDC/ 0~10VDC |
RS-485 |
RS485+ 0~10VDC |
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Power supply |
10~30 VDC |
16~30 VDC |
10~30VDC |
16~30 VDC |
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Power consumption |
≤1.5W |
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Pressure interface |
Metal barbed interface,φ6.2mm |
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Communication |
RS-485 Standard interface, Modbus RTU protocol |
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Certification |
ROHS certification，CE certification |
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Electromagnetic compatibility |
Electromagnetic radiation:EN50081-1/-2;Electromagnetic sensitivity:EN50082-2 |
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Lightning protection |
Air conduction withstand voltage 8000V, shell and cable conduction withstand voltage 4000V |
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C |
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Note: This Model has the ideal price-performance rate |
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Code and description |
Remark |
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LFM108 |
Low Differential Pressure Transducer |
Model |
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101D |
101D=0±100Pa |
101G |
101G=0-100Pa |
Measuring range |
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102D |
102D=0±1000Pa |
102G |
102G=0-1000Pa |
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251D |
251D=0±250Pa |
103G |
103G=0-10000Pa |
G means one-way |
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252D |
252D=0±2500Pa |
251G |
251G=0-250Pa |
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051D |
051DD=0±50Pa |
252G |
252G=0-2500Pa |
D means two-way |
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501D |
501D=0±500Pa |
501G |
501G=0-500Pa |
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502D |
502D=0±5000Pa |
502G |
502G=0-5000Pa |
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103D |
103D=0±10000Pa |
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AL |
4~20mA |
Output type |
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VL |
0~10V |
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VZ |
0~5V |
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MOD |
RS485 |
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MVL |
RS485、0~10VDC |
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MVZ |
RS485、0~5VDC |
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MAL |
RS485、4~20mA |
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LFM108 |
102G |
VZ |
Selection example |
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