Sensaphone WSG30 System Users manual - Manual (Page 38)

WSG30 Users Manual
38
24 VdC Power suPPly
The Wireless 4-20mA sensor has a internal 24 VDC power supply that is intended to be used to power
your 4-20mA transducer. It can provide up to 30mA of current. If your transducer does not require an
external power supply then you can disable the 24V supply in the sensor by moving the 24VDC jumper
on the circuit board to the OFF position. This will conserve battery power in the event of a power
failure.
+ –
+ –
+ –
. . .
off on
24V Supply in the on position
wIrIng the 4-20Ma transduCer
If you will be using the internal 24VDC supply, then connect the positive wire of your transducer to the
24VDC terminal on the sensor and connect the negative (or current output) wire of your transducer to
the mA terminal on the sensor.
4-20mA
Transducer
+ –
SENSAPHONE ®
REMOTE MONITORING SYSTEM
WIRELESS SENSOR GATEWAY
4-20mA SENSOR
5VDC GND | mA | 24VDC
4-20mA Transducer using 24VDC power supply
If your transducer does not require an external 24V supply, then connect the current output wire from
the transducer the mA terminal on the sensor and connect the ground wire from your transducer to the
GND terminal on the sensor.