ABB 4690 - Electrical Connections; Access to Terminals

4690 Series
Turbidity systems 4 Electrical Connections
12 IM/4690–EN Rev. A
4 Electrical Connections
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.
4.1.2 Panel-mount Analyzer
Referring to Fig. 4.2:
a Remove securing nuts.
b Remove cover.
c Remove mains terminals protection cover.
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.
Fig. 4.1 Access to Terminals – Wall- / Pipe-mount Analyzer
1
2
3
Earth (Ground)
Studs
Fig. 4.2 Access to Terminals – Panel-mount Analyzer
2
3
1