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Lefoo Differential Pressure Transmitter LFM11

LEFOO LFM11 micro differential pressure transmitter adopts high-precision MEMS sensor, digital pressure acquisition and with temperature compensation; with sensitive pressure response, long-term stable output, superior temperature performance and other characteristics. Can detect positive pressure, negative pressure or differential pressure, widely used in air or neutral gas monitoring, the internal pressure can be set up a variety of units, the range can be switched on site. It can be used for differential pressure detection in applications such as fans, blowers, filters, furnace ventilation, clean rooms, nuclear testing booths and building ventilation.


Features

* The range can be set on site with the built-in dip switch

* Response time (0.5s-4s) can be adjusted by the built-in dip switch

* The product can be fixed by mounting the back plate, and can be disassembled flexibly

* Flame-retardant ABS housing with good impact resistance and heat resistance

* Intuitive LCD digital display


Specification of Differential Pressure Transmitter LFM11



Differential Pressure Transducer
Note: The transparent plastic cover prevents dust to LCD
GeneralValue
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




Model Selection
Contact LEFOO sales team to get more details
LEFOO Model Selection LFM11

Code and description

Remark

LFM11


Model


6

-100~100pa

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

4~20mA(Two-wired)

C

0~10VDC(Three-wired)

D

0~5VDC(Three-wired)

E

RS-485 communication


C

±1.0% F.S  K(±0.5% F.S  >1000pa)

Accuracy

LFM11

4

O

B

C

Selection example


Features of Differential Pressure Transmitter LFM11

  • 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.


    Optional Parts for Differential Pressure Transducer LEM 11
    Connector
    1.5M Soft Tube
    Screw combination
    Mount Board
    LEFOO Optional Parts for Differential Pressure Transducer LEM 11

Applications of Differential Pressure Transmitter LFM11

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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