Wg214 Wiegand Sensor Zero Power Consumption Magnetic Sensor Gas Meter Sensor

• Customization: Available
• Outer Lead: High Temperature Resistant Soft Lead
• Output: Pulse Signal
• Model NO.: WG214
• Usage: Liquid Level Sensor
• Theory: Magnetic Sensor
• Transport Package: Carton
• Specification: Epoxy potting, plastic shell
• Trademark: AHNJ
• Origin: Nanjing, China
• HS Code: 8542319090
• Production Capacity: 100, 000, 000PCS/Year

Product Description

Signal Type	Packing	Outer Lead	Magnetic Flux Density(mT)	Output Voltage(V)	Pulse Width (μs)	Operating Frequency(Hz)	Internal Resistance (Ω)	Dimension (mm)	Operating Temperature(ºC)
WG112	Epoxy potting, plastic shell	Tinned copper hard lead	5~10	≥1.5	12	10k	800	12.8×4.5×4.5	-40~125
WG113A	Epoxy potting, plastic shell	Tinned copper hard lead	5~10	≥1.5	15	10k	1000	12.8×4.5×4.5	-40~85
WG214	Epoxy potting, plastic shell	High temperature resistant soft lead	5~10	≥1.5	12	10k	850	12×7.2×8	-40~125
WG216	Epoxy potting, plastic shell	High temperature resistant soft lead	5~10	≥1.5	12	10k	1000	Refer to datasheet	-40~85
WG311	Epoxy potting, aluminum shell	Tinned copper hard lead	5~10	≥1.5	12	10k	1000	φ4×11.5	-40~125
WG314	Heat-shrink tube	Tinned copper hard lead	5~10	≥1.5	12	10k	650	φ3.3×22	-40~100
WG315	Heat-shrink tube	Tinned copper hard lead	5~10	≥1.5	12	10k	1300	φ3.3×22	-40~100
Power Type	Packing	Outer Lead	Magnetic Flux Density(mT)	Output Voltage(V)	Pulse Width (μs)	Operating Frequency(Hz)	Internal Resistance (Ω)	Dimension (mm)	Operating Temperature(ºC)
WG631	Epoxy potting, plastic shell	Tinned copper hard lead	8~12	≥5.0	14	1k	270	24×7×8.2	-40~125

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	650~850	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		D	2.5(distance to the bottom)	mm
Package		-	Aluminum shell, Epoxy potting	-
External lead		-	Resistance to high temperature soft wire	-

Sensor dimension and sensitive silk location

Instruction

In the water meter application, the magnetic ring of φ9.5×φ6.0×3.5 mm can be used, it is magnetized in axial direction, a pair of poles. The surface magnetic strength is more than 90 mT, the installation distance from the surface of ring to the bottom of the sensor is about 2.5mm.
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" )
If using other material and shape of the magnet, it needs to measure its magnetic field, and adjust the installation distance.