LFM55 Embedded Differential Pressure Transmitter

PRODUCT FEATURES

Embedded installation,suitable for switch box
Sound and light alarm,range,and alarm,on sitesetting
Large-size LCD digital display,easy to operate
316L stainless steel panel has no dust andoorrosion resistance
Imported micro-pressure sensing element,pressure sensitive

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Description

Specification

Product Selection

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Description

LFM55 Differential Pressure Transmitter is widely used in differential pressure detection of air or neutral gas,The productinstallation takes up small space,and can be embedded in system surface or installed inside switch box.The product panelis made of 316L stainless steel.The surface is smooth and dust-free and has strong corosion resistance,which meets cleanroom standard.Customers can setup measurement range,communication address and other funcions on site.The producthas sound and light alarm function,and can set the alarm pressure point,alarm delay time,and alarm function on/off on site.The product adopts imported micro-pressure sensing element with temperature compensation,and has the characterisicsof sensitive pressure response,long-term output stability,and excelent temperature performance.The products can bewidely used in clean rooms,operating rooms,dust-free laboratories,also suitable for HVAC,inteligent buildings and otherapplications.

Specification

Medium	Dry air and neutral gases
Pressure range	±100Pa,Field configurable range
Display	Backlit LCD display,display screen size 45×30 mm
Display resolution	0.1Pa
Overload pressure	7Kpa
Accuracy	±1Pa
Operating temperature	-20℃~70℃
Compensation temperature	-10℃~60℃
Storage temperature	-40℃~80℃
Protection grade	IP30
Electrical connection	Four-wired	Six-wired
Output signal	RS485	4~20mA/0~10VDC
Power supply ①	9~30VDC/24VAC±20%	12~30VDC/24VAC±20%
Pressure connection	φ6.5mm,quick fit
Communication	RS-485 Standard interface,Modbus RTU protocol
Shell material	Fireproof Plastic UL94 V0 &Stainless Steel Panel
Certification	ROHS、CE
Weight (Approximate)	225g

①When the product is powered by an AC power supply,it is recommended to use an isolated AC power supply.

Product Selection

Code and Description					Remark
LFM55	Embedded differential pressure transmitter				Model
	1	-25~25Pa			Measurement Range
	2	-50~50Pa
	3	-100~100Pa
	4	Customized Range
		A	4~20mA&0~10VDC(simultaneous output)		Output Method
		E	RS-485 Communication
			S	Side Intake	Air Intake Direction
			B	Rear Air Intake

LFM55 1 A S					Model Selection Example

Note:LFM551AS refer to measure range is ±25pa,4~20mA and 0~10VDC output,side air intake.

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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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