Electrical Connections; Access To Terminals; Wall- / Pipe-Mount Analyzer; Panel-Mount Analyzer - ABB 4690 User Manual

4690 Series
Turbidity systems

4 Electrical Connections

Warning.

Although certain analyzers are fitted with internal fuse protection, a suitably rated external disconnecting device such as a
switch or circuit breaker conforming to local safety standards must be fitted to the final installation.

Before making any connections, ensure that the power supply, any high voltage-operated control circuits and high
common-mode voltages are switched off.

4.1 Access to Terminals

4.1.1 Wall- / Pipe-mount Analyzer

Referring to Fig. 4.1:
a
Slide cover down, pull out slightly and slide it off.
b
Release captive screws.
c
Remove protection cover.
1
Fig. 4.1 Access to Terminals – Wall- / Pipe-mount Analyzer
12
3
2
Earth (Ground)
Studs

4.1.2 Panel-mount Analyzer

Referring to Fig. 4.2:
a
Remove securing nuts.
b
Remove cover.
c
Remove mains terminals protection cover.
1
2
Fig. 4.2 Access to Terminals – Panel-mount Analyzer
4 Electrical Connections
3
IM/4690–EN Rev. A