Electronic Commercial Water Meter
AquaMaster™ 3 Electrical Installation
IM/AM Issue 13 21
3.2.3 Transmitter Connections
Caution.
To ensure cable glands seal, use cable of diameter 2 to 6mm (0.08 to 0.24 in) [M16] only.
Ensure cable glands are tightened after wiring. However, overtightening a plastic cable gland will
break it and destroy its sealing property. It is recommended that cable glands are tightened
fingertight initially, then a further
1
/2 to
3
/4 turn applied using a suitable spanner.
Ensure that ‘O’ ring seals and mating surfaces are clean, to maintain environmental rating.
For IP68 protection where the transmitter could be submerged, the termination area must be
potted – see Section 3.3.9, page 31.
Note. The batteries are mounted in the lid of early style transmitters.
Fig. 3.12 Transmitter Connection Terminal Access
Slacken captive screws
Lift off
Cover
1
2
Remove battery tray
3
Press and ...
...lift
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