8
Only open the case when power has been removed.
This display uses internal detachable screw terminal connectors. Refer to the
wiring diagram on the following page for the correct positioning of each wire.
Each cable is fed through a compression gland for sealing. All glands must be
sealed, unused glands must be plugged.
The conductors you use must be suitable for the meter’s temperature, current
and voltage rating, which is broadly described as follows:-
Cable Temperature Rating
All cables must be rated for operation up to 90C continuous.
Cable gauge
The connectors on this instrument can accept conductors up to 1.5mm
2
c.s.a.
The minimum cross sectional area shall be 0.5mm
2
Cable insulation voltage rating
Cables shall have an insulation voltage rating of at least 380V continuous.
Wire preparation:
We recommend multi-strand wire, because it withstands vibration better than
single strand cable. Pull the wire firmly after you make the connection to confirm
it is tight.
Use screened cable for all signal and control wiring and connect the screen to
earth at the destination end only. Route signal cabling away from power cabling
and relay switching cabling, to avoid electrical noise interference.
Use a single, circular cable through each gland, diameter 4.5 to 6.5mm
Wiring Advice
No bare wires exposed
Terminal screwdiver - 3mm blade
Strip back
5mm max.
London
Electronics
Pull connector
this way to detach
Detachable
connectors
Main board
Function board
Support pillars
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