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Differential Pressure Controller LFM32

The differential pressure controller lfm32 is a 3 in 1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output all packed in the popular Dywer gage style housing. Combining these 3 features allows the reduction of several instruments with one product, saving inventory, installation time, and money

Lefoo differential pressure controller is widely used for air or neutral gas detection control. Internal provides multiple working modes, more suitable for a variety of uses of air pressure control. The optional analog signal is 4~ 20mA, 0~10V, or RS485 digital signal output. The range of upper and lower pressure values for switching output type operation can be set independently. It has the function of a built-in buzzer with sound and light alarm & alarm signal output, field-programmable alarm pressure value, and custom alarm mode settings. 

 

Features


* Supplier of Dywer

* Relay signal control +Analog output LCD display

* Built-in buzzing sound and light alarm




Specification of Digital Pressure Controller


Technical Benchmark

Measurement range

±100Pa,±1000Pa,±10000Pa

Accuracy

±1%F.S

Measured Medium

Air or non-corrosive gases

Storage Temperature

-20℃~70℃

Protection Grade

IP65

Output Signal

4~20mA&0~10V

RS485

Control Signal

SP1 Relay Output

SP2   Relay Output

Relay Type

2 SPDT relays    3A@250VAC/30VDC

Power Supply

16~30VDC

Consumption

≤2.5W

Pressure Connection

Plastic Concave Interface

Housing Material

ABS   Industrial plastic (UL94-V0)

Certification

ROHS, CE

Electromagnetic Compatibility

Electromagnetic   transmit: EN50081-1/-2

Electromagnetic sensitivity:   EN50082-2

Display

80*40mm LCD Display

Weight

328g



How to Select
LEFOO How to Select LFM32

Code and   Description

Remark

LFM32


Model

6

-100~100pa

Measurement

range

0

-1000~1000Pa

2

-10000~10000Pa



A

4~20mA&0~10V

E

RS—485

Output Mode



P

Plastic panel (round)

Installation

panel

S

Stainless steel panel (square)


F

Front panel air intake

Air intake

method


B

Rear panel air intake

LFM32

0

A

P

B

Example



Connection Mode


LEFOO Connection Mode LFM32


Description of LEFOO Differential Pressure Controller

■  Various switchable pressure units

■  Support multiple working modes

■  Built-in buzzer with sound-light alarm, the field-programmable alarm pressure value

■  RS-485 serial communication, support standard Modbus RTU protocol

■  Housing made of FR-ABS, satisfactory impact resistance and heat resistance etc.

■  The Max. and Min. pressure range of discrete output can be set


Various pressure units can be switched to view the lowest and highest pressure values. It also provides an acousto optic alarm and digital damping filtering degrees can be programmed on-site. The product adopts imported micro-pressure core body, digital pressure acquisition, and temperature compensation, with sensitive pressure response, long-term output stability, superior temperature performance, and other characteristics.


Application of LEFOO Differential Pressure Controllers

Air or neutral gas detection control

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