Lefoo Low Differential Pressure Transmitter LFM108

Low differential pressure transmitters and low cost pressure sensor controller 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 transducer is 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 Transducer LFM108
Air Differential Pressure Transducer
Note: Better accuracy performance than ¯1%F.S is optional

General Value
Pressure Range 0～¯100Pa, 0～¯1,000Pa, 0～¯10,000Pa
Overpressure capacity 5KPa, 10KPa, 80KPa
Accuracy ¯1%F.S
Operating temperature －20℃~70℃
Response time 0.5s/1s/2s/4s
Cable Connector Cable maximum diameter Ø8mm
Stability Typical value：0.1%F.S Maximum value:0.2%F.S
Protection Level IP54
Electrical connections Three-wired Four-wired Five-wired
Output signal 4~20mA 0~5VDC/ 0~10VDC RS-485 RS485+ 0~10VDC
Power supply 10~30 VDC 16~30 VDC 10~30VDC 16~30 VDC
Power consumption ≤1.5W
Pressure interface Metal barbed interface,φ6.2mm
Communication RS-485 Standard interface, Modbus RTU protocol
Certification ROHS certification，CE certification
Electromagnetic compatibility Electromagnetic radiation:EN50081-1/-2;Electromagnetic sensitivity:EN50082-2
Lightning protection Air conduction withstand voltage 8000V, shell and cable conduction withstand voltage 4000V

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Note: This Model has the ideal price-performance rate

Code and description Remark
LFM108 Low Differential Pressure Transducer Model
101D 101D=0¯100Pa 101G 101G=0-100Pa Measuring range
102D 102D=0¯1000Pa 102G 102G=0-1000Pa
251D 251D=0¯250Pa 103G 103G=0-10000Pa G means one-way
252D 252D=0¯2500Pa 251G 251G=0-250Pa
051D 051DD=0¯50Pa 252G 252G=0-2500Pa D means two-way
501D 501D=0¯500Pa 501G 501G=0-500Pa
502D 502D=0¯5000Pa 502G 502G=0-5000Pa
103D 103D=0¯10000Pa
AL 4~20mA Output type
VL 0~10V
VZ 0~5V
MOD RS485
MVL RS485、0~10VDC
MVZ RS485、0~5VDC
MAL RS485、4~20mA
LFM108 102G VZ Selection example