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Electrical Connection Information
Sensor Connections
The standard sensor connection is a 5 pin 723 series Binder connector. The sensor
connector is also used as a charging socket when the re-chargeable alkaline battery
option has been ordered. The wiring of the socket is detailed below:-
PIN 1
+ve Excitation
PIN 2
-ve Excitation & -ve Charge Input
PIN 3
+ve Signal
PIN 4
-ve Signal
PIN 5
+ve Charge Input
RS232 Port Connections
If the TR150 has been ordered with the optional RS232 output, then this will be available
via an 8 pin 723 series Binder connector. The wiring for this is detailed below:-
PIN 1
Tx
PIN 2
Rx
PIN 3
Gnd
Internal Connections
It may be necessary from time to time to know what the internal connections are. For
example, if you disturb some of the connections whilst trying to insert the range legends,
or if you need to change the internal shunt calibration resistor. These are shown below for
reference only:-
