LFM73 Multi-Function DP Transmitter/Controller Brochure

PRODUCT FEATURES

High-precision MEMS digital pressure sensor to detect positive pressure,negative pressure or pressure difference,a better alternative to the traditionalpointer mechanical watch
Versatile product that combines high-lighted LED digital display,switchcontrol and transmitter output
The output range of the internal range is adjustable,and a variety ofpressure units can be switched
Built-in buzzer,provide sound and light alarm,can set the alarm pressurevalue range on site
Optional relay output or alarm,and at the same time LED indication
RS-485 serial communication,support for standard Modbus RTU protocol
Cast aluminum shell,with good impact resistance,heat resistance and so on
No moving parts,shock-proof;

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Description

Specification

Product Selection

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Description

LFM73 Multi-function Differential Pressure Transmitter/Controller uses high-precision MEMS sensor,LED digital display andtransmitter output to detect the pressure difference.It can replace the pointer-type mechanical pressure gauge.The pressuremeasurement range and pressure unit can be easily adjusted on site through buttons.It adopts an IP65 protection gradehousing and is suitable for energy management systems,heating,ventilation and air conditioning(HVAC),VAV and fan control,environmental pollution control,static Pipeline and clean room pressure,smoke volume control,oven pressurization and boilerventilation control and other fields.

Specification

Measured Medium	Air or non-corrosive gases
Measurement range	±100Pa,±1000Pa,±10000Pa
Overload pressure	5KPa(±100Pa);10KPa(±1000Pa); 80KPa(±10000Pa)
Accuracy	±1.0%FS
Operation Temperature	-20℃~80℃
Compensated Temperature	-10℃~60℃
Storage Temperature	-40℃~85℃
Response time	0.5s(default)/1.0s/2s/4s
Protection Grade	IP65
Pressure Connection	Concave Interface φ6.5 mm
Output Signal	4~20mA(three wire)/0~10V/RS485
Control Signal	2*SPST,3A-30VDC/250VAC
PowerSupply	16~30VDC/24VAC±20%
Wiring method	Cable leads from the back
Consumption	≤1.5W
Housing Material	Cast aluminum housing,PC panel
Communication	RS-485 standard interface,Modbus RTU protocol
Key	Three tap keys
Display	4 bit 0.8″nixie tube
Weight	390g

Product Selection

Code and description

Remark

LFM73

Model number

-100~100Pa

Range

-1000~1000Pa

-10000~10000Pa

N/A

Signal output type

RS-485 Communication

4~20mA and 0~10V

4~20mA and RS-485 Communication

N/A

Control output

2 SPDT Relays+1xBuzzer

1x Buzzer

2 SPDT Relays

Plastic panel

Mounting panel

Front panel air intake

Intake mode

Back air intake

Side air intake

Direct insertion

Air Hose
Connection

Thread connector transfer

LFM73 0 -A R P B D

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Please carefully inspect the following products ordered from LEFOO when you receive them.If you do not meet your reservation requirements or find that the products have surface quality problems,please take photos and contact the sales engineer who served you.Once this kind of product is signed,within 7 days,the LEFOO product will maintain the original quality and function when it was sold,and the product itself,accessories,and trademark logos are complete,and you can return the product without reason.Within 30 days,accept the return application due to quality reasons.

For more information on refund timing and amounts(including partial refunds and restocking fees),please contact the sales engineer who served you.·
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To ensure a good return experience for you,you must adhere to LEFOO’s Return and Refund policies.Thank you for your cooperation.