7300w² Monitor Instruction Manual
Expansion Boxes are available to increase the number of inputs and outputs for the 7300w² Monitor. These
are available in the following configurations.
PN224920: WaterWatch² Expansion Box (1x 4-20mA Input) – see 6.2.5 for details
PN224468: WaterWatch² Expansion Box (3 to 4 Sensor Input)
PN224473: WaterWatch² Expansion Box (3 to 8 Sensor Input)
PN224476: WaterWatch² Expansion Box (8 x 4-20mA and 8 x Relay Outputs)
PN224939: WaterWatch² Expansion Box (3 to 4 Sensor Input, 4 x 4-20mA and 4 x Relay Outputs)
Each Expansion Box connects to a “SENSOR” terminal of the 7300w² Monitor. Connections into the
Expansion Boxes are the same as for the 7300w², and the same precautions apply.
NOTE:
Once the Expansion Boxes have been wired, unplug each 4-way connector from the 7300w²
Monitor before powering up the unit. The system must recognise each box in turn through the
ModTechw² Protocol “Add Expansion Config. Menu”. Similarly disconnect all Sensors from the
Expansion Box before power up, see “Add Sensor Config. Menu”.
When using 8x Sensor Input Expansion Boxes, an additional Power Supply is required to reduce the
risk of overloading the 7300w² Monitor when connecting more than two TurbiTechw² sensors. This
power supply should be rated at 12VDC 2A min, and connects to the “EXT PWR” terminal of the
Expansion Box. A suitable power supply is available from Partech.
See the Data sheet supplied with each expansion box for full configuration details.
224081IM Issue 22 Issue Date 27/03/2018
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