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10
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Appendix 1 (C2020 Wiring Diagram)
VIEW FROM BACK
OF CIRCUIT BOARD
MAINS POWER SUPPLY
.
Units are supplied with either
24vdc direct connection, or
100/240 Vac power supply.
Power supply connections can
be made by REMOVING the
mounting bracket screws
temporarily.
Power supply Part No T4020-EG
END VIEW POWER
CONNECTIONS
L N E - DC +
For Standard
Voltage Sensor
… wire like this.
C2020-C23/25/27
For mA Sensor
… wire like this.
T4020-Axx and Bxx
Series
3M, 5M and 10M
Bund Alarm
is an input for a
mechanical float switch
Bund
Alarm.
Set NC, (normally closed)
.
Remove link and wire to these
terminals if Bund Alarm is used
5v Sig 0v +V Sig
Voltage mA
-------- Inputs ---------------------
0 + Gnd Sig V
Alarm Loop / Pass
-------- Outputs --------------
mA
OUTPUT Analog
4-20 milliamp.
Loop = Powered by C2020
(& Multimeter Check)
Siren if fitted
Optional 12-24VDC
Client Supplied
Power Connection
