
12
IM/AP300 Rev. J
| AP300 | Combination pH/Redox (ORP) sensors
3 Electrical Connections
3.1 Sensor Connections
All sensors are supplied with either an integral cable in the
following lengths:
— 3 m (10 ft)
— 6 m (20 ft)
— 9 m (30 ft)
or with a detachable cable and fitted junction box.
Terminations are shown in Fig. 3.1.
Each version allows for tagged sensor terminations enabling
connection to a wide variety of process pH/redox (ORP)
analyzers. Alternatively, the sensor can be supplied with
detachable BNC and Molex connectors for pH/redox (ORP)
and temperature compensation (if applicable).
Fig. 3.1 Cable Terminations
Tagged Sensor Terminations for Direct Connection to Transmitter
pH with temperature compensation
BNC/T.C. Sensor Terminations for Junction
Box Connection to Extension Cable
pH with temperature compensation
Male BNC
Male BNC
pH without temperature compensation
pH and Redox (ORP) without
temperature compensation
Glass Electrode
Reference Electrode
Metal Electrode
Reference Electrode
Blue
Blue
Black
Black
Molex
Temperature
Compensator
Connector
3-wire
Temperature
Compensation
2-wire
Temperature
Compensation
Glass Electrode
Reference Electrode
Blue
Black
Black
Red
White
Grey
* Remove the grey wire if used with instruments having a
2-wire temperature compensator input, e.g. TB8x
Redox