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
|
1400~1600
|
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
|
Central axis
|
mm
|
|
Package
|
-
|
Aluminum shell, Epoxy potting
|
-
|
|
External lead
|
-
|
Tinned copper hard leads
|
-
|
Application
Rotation
count: smart water meter, heat meter, gas meter,
fuel gauge, flow meter, odometer etc.
Position
detection: oil depot level detection, tipping
bucket rain gauge, unattended hydrometeorology
monitoring.
Electronic
switch: explosion-proof switch, ignition switch
etc.
Sensor
dimension
Instruction
WG311 is suitable for the magnetic field generated
by multi-pole magnet's rotation, and it can be used in
the industrial flow meter. It needs to measure its
magnetic field and adjust the installation distance
before installation.
Note: the sensor has certain requirements to the magnetic
strength, too strong or too weak magnetic field may
affect its operation.
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