6
3
ELECTRICAL CONNECTIONS
1
2
3
4
2
Earth Studs
slide
down
Pull out
slightly. . .
. . . and
slide off
Remove
protection
cover
Slacken
captive
screws
Remove nuts and
protection cover
Remove
mains cover
Mains
Cover
Earth Stud
1
2
Warning.
• Before making any connections, ensure that the power supply, any high voltage-operated control circuits and high common
mode voltage are switched off.
• Although certain instruments are fitted with internal fuse protection, a suitably rated external protection device, e.g. fuse or
miniature circuit breaker (m.c.b.), must also be fitted by the installer.
3.1
Access to Terminals
3.1.1
Wall-mounted Instruments – Fig. 3.1
3.1.2
Panel-mounted Instruments – Fig. 3.2
Fig. 3.1 Access to Terminals –
Wall-mounted Instrument
Fig. 3.2 Access to Terminals – Panel-mounted
Instrument (Rear View)