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Air Differential Pressure Transducer

The air differential pressure transducer allows precise measuring of room pressures and instruments. The air differential pressure transmitters of the LFM5 series are used for measuring vacuum, positive pressure and negative pressure. The differential pressure transmitters offer accurate low-differential pressure measurements of air and many gases for air filter monitoring.


Features


* Quick installation Spring screw

* Multiple measure scales and various output signals

* Protection level IP65


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Parameters of Air Differential Pressure Transducer

GeneralValue
Pressure Range0~±100Pa, 0~±1,000Pa, 0~±10,000Pa
Overpressure capacity5KPa(LFM516), 10KPa(LFM510); 80KPa(LFM512)
Accuracy±1%F.S
Operating temperature-20℃~70℃
Response time0.5s/1s/2s/4s
Protection LevelIP55
Electrical connectionsThree-wiredFour-wiredSix-wired
Output signal4~20mA0~5VDC/
0~10VDC
RS-4854~20mA/
0~10VDC
Power supply16~30 VDC
Power consumption≤1.5W
Pressure interfaceMetal barbed interface,φ6mm
CommunicationRS-485 Standard interface, Modbus RTU protocol
CertificationROHS certification,CE certification
Electromagnetic compatibilityElectromagnetic radiation:EN50081-1/-2;Electromagnetic sensitivity:EN50082-2
Lightning protection

Air conduction withstand voltage 8000V, shell and cable conduction withstand voltage 4000V (can be customized )



Model Selection instructions

         

Code and description

Remark



LFM51


Model



6

-100100pa

Range



0

-1000~1000Pa



2

-10000~10000Pa




N

No display




O

With display

Display




A

4~20mA and 0~10VDC(Simultaneous output)

Output type


P = psi




B

4~20mATwo-wired




C

0~10VDCThree-wired




D

0~5VDCThree-wired




E

RS-485 communication




C

±1.0%FS

Accuracy





K

±0.5%FS      >1000pa


LFM51      

6

 O

B

C  

Selection example





Dimensions

21323131.jpg


Application of Air Differential Pressure Transducer

*Air and Neutral gas pressure measuring

*Noise environmental protection project bellows

This differential pressure transducer is widely used in HVAC, energy management systems,  VAV and fan control, cleanroom pressure, smoke hood control, oven pressurization, furnace ventilation control, and other fields. 

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