14
…3
ELECTRICAL INSTALLATION
3.2.3
Transmitter Connections – Figs. 3.12 to 3.15
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 finger-
tight 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.
Slacken captive screws
Lift off
Cover
1
2
Remove battery tray
3
Press and ...
...lift
Fig. 3.12 Transmitter Connection Terminal Access
Note.
The batteries are
mounted in the lid of early style
transmitters.
