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Differential Pressure Transducer LFM11 with Display

The LFM11 series differential pressure transducer/transmitter detects differential pressure or gauge pressure and converts this pressure value into a proportional electrical signal output for use in intelligent building energy management systems. It measures the precise and required pressure and flows for building pressurization and airflow control. It is widely using for the monitoring of air or neutral gas, and a variety of pressure units and ranges can be switched. It adopts imported micro pressure core, digital pressure acquisition, and temperature compensation, this differential pressure transmitter has the characteristics of sensitive pressure response, long-term stable output, and superior temperature performance.


Features


* LCD digital display

* 1% exactness for low-pressure measuring

* Multiple measure scale and various output signals


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Technical Parameters of Differential Pressure Transducer LFM11 with Display

Pressure Range0~±100Pa, 0~±1,000Pa, 0~±10,000Pa
Overload pressure5KPa(LFM116), 10KPa(LFM110), 80KPa(LFM112)
Accuracy±1%F.S
Storage temperature-20℃~70℃
Response time0.5s/1s/2s/4s
Protection gradeIP54
Pressure connectionMetal barbed connection, Ø 6.2 mm
Electrical connectionTwo-wiredThree-wiredFour-wiredFive-wiredSix-wired
4~20mA0~5V 0~10VRS4850~10VDC RS4854~20mA 0~5/10VDC
Power supply12~30VDC16~30VDC12~30VDC16~30VDC16~30VDC
Power consumption≤1.5W
CommunicationRS-485 standard interface, Modbus RTU protocol
CertificationROHS certification, CE certification
Electromagnetic
compatibility
Electromagnetic radiation:EN50081-1/-2;Electromagnetic sensitivity:EN50082-2
Lightning protectionAir conduction withstand voltage 8000V, shell and cable conduction withstand voltage
4000V (can be customized according to requirements)
Display modeLCD Backlight digital display
Weight166g


How to Select


Code and description

 

Remark

LFM11


Model


6

-100100pa

Pressure range


4

-1000~1000Pa


0

-10000~10000Pa


O

With display

Display mode


N

without display




A

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

Output type




B

4~20mATwo-wired




C

0~10VDCThree-wired




D

0~5VDCThree-wired




E

RS-485 communication




C

±1.0% F.S  K(±0.5% F.S  >1000pa)

Accuracy

LFM11

4

O

B

 C

Selection example



Electrical Connection


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Dimensions and M16 connection

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Description of Differential Pressure Transducer LFM11 with Display

  • Operating pressure value can be set on-site through the built-in DIP switch of the LFM11 series products.

  • The response time can be adjustable on-site through the

  • built-in DIP switch of the product (0.5S ~ 4S).

  • The rotation method is fixed to the installation backplate(It can be installed step by step).

  • Adopt flame-retardant ABS injection molding shell, with good impact resistance, heat resistance properties.

Application of Pressure Transducer Transmitter

The low differential pressure transducer is a device for monitoring air or neutral gas.

Air processing system

Air filtration

Automation technology

Blower

Building automation integration

Dust removal in lithium battery workshop 

3D printing equipment

Environmental Technology

Fresh air system

Fresh air conditioner

Gas oven

HVAC Projects

Industrial air conditioning

Livestock breeding

Intelligent building energy management systems

Medicine dispenser

PLC

Painting equipment

Production line pipeline inspection

Space purification system

Waste gas treatment

Catalytic combustion purification system


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