OxyTechw² GAL Instruction Manual
6.3 Extending Sensor Cables
Sensors are usually supplied with 10M cables (longer cables can be provided if requested). These cables
can be extended to a maximum length of 100M. To ensure optimum performance, only use Partech
ModTechw² cable for extensions. Partech can supply junction boxes to allow for cable extensions. These
should be used on all installations where the cable length from the sensor to the monitor exceeds 20M
(Partech Junction boxes include on-board filtering for long cable lengths). Junction boxes are also useful for
local connection of sensors close to the sample point. This allows for easy replacement of sensors without
the need to pull back cables to the monitor. The junction box has an on-board terminator switch that can be
activated to terminate the network if the sensor is to be removed for long periods.
When joining cables, ensure the connection is fully waterproof. Any moisture ingress can effect the
communication between the sensor and monitor.
ModTechw² Cable specification-
•
2 Twisted Pair - Red/Black (Power) and Green/White (Data) with Screen and Drain wire
•
Cores 24AWG (0,22mm²) 7 x 0,20mm
•
Outer Insulation – PUR Polyurethane Blue (RAL5003), Diameter - 5mmØ
224083IM-Issue 04 20/03/2018
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