Integral Sensor Cable Connection; Junction Box And Extension Cable Connection; Quick-Disconnect Cable Connection - ABB Endura APA592 Operating Instruction

Endura APA592
pH / Redox (ORP) transmitter

4.5 Integral Sensor Cable Connection

For installations where the sensor is close to the transmitter, use an integral sensor cable. This design is
preferred for submersible installations as there is no connector that could be affected by moisture.
For ease of sensor replacement, keep the cable length to a minimum.
Fig. 4.4 Sensor with Integral Cable

4.6 Junction Box and Extension Cable Connection

Some sensors use a BNC connector. For some applications, an extension cable is available that can be
installed permanently between the sensor and the transmitter. The sensor has a junction box mounted
either directly on it or in close proximity. The extension cable is connected to the sensor inside the junction
box. Maximum distance between the sensor and transmitter is 30 m (100 ft) without preamplifier.
Sensor with
BNC Connector
Fig. 4.5 Sensor with Junction Box and Extension Cable

4.7 Quick-disconnect Cable Connection

For sensors that use a quick disconnect-style connector, the extension cable is connected directly to the
transmitter. The connection to the sensor is then made in the field at the sensor. The extension cable can
be left in place even if the sensor is replaced. Maximum distance between the sensor and transmitter is
30 m (100 ft) without preamplifier.
Fig. 4.6 Sensor with Quick-disconnect Style Cable
32
To Sensor
Female Connector
Sensor
Extension Cable
Junction
Box
4 Electrical Installation
OI/APA592–EN Rev. E