Wiegand Sensor, Flow Meter, Flow Sensor, WG215, Zero Power Consumption Sensor, Water Meter Sensor, Gas Meter Sensor, Level Sensor, Wiegand Sensor

Basic Info.

Model NO.	WG215
Specification	ROHS, REACH, SGS
Trademark	AHNJ
Origin	China
HS Code	8542319000
Production Capacity	100, 000, 000PCS/Year

Product Description

Features
No need the power supply when it works.Bipolar excitation working mode, the sensor outputs a pair of positive and negative electrical pulse signal when the magnetic field polarity changes for a circle.
Only when the external magnetic field polarity changes, magnetic strength reaches the excitation threshold, the sensor will outputs a pulse signal, so the vibration won't happen. The operation is stable and reliable.
The signal amplitude has nothing to do with the magnetic field changing speed, and it can work at the speed near to zero.
The signal processing is simple, and it can be directly connected with transistors, comparators, A/D converter, etc.
The output signal can be remote transmitted by the signal lines, it's suitable for LAN management.
No mechanic contact, no spark, is a kind of intrinsic safety devices.
Wide operating temperature range, strong environmental adaptability.
Performance Index

Name		Symbol	Value	Unit
Excitation strength	Min.	B	3	mT
	Typ.		5~6
	Max.		12
Pulse signal amplitude		Vo	≥1.5	V
Pulse width(in the location of 1V)		τ	10~30	μS
DC internal resistance		Ro	600~800	Ω
Operating frequency	Min.	f	unlimited	kHz
	Max.		10
Operating Temp.		T	-40~+125	ºC
Outline Dimension and Typical installation location		-	See the figure	-
Sensitive silk location(distance to the bottom surface of sensor)		D	2.0(distance to the bottom)	mm
Package		-	Aluminum shell, Epoxy potting	-
External lead		-	Resistance to high temperature soft wire	-

Sensor dimension and sensitive silk location

InstructionExample: The inlet of the heater is in application.(See the following left figure)
Note: The sensor has certain requirements to the magnetic strength, too strong or too weak magnetic field may affect its operation.(See the excitation strength on "Performance index" )
The working mode is shown as the following right figure.(if using other shape magnet, the installation distance should be adjusted.)