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4.5.3

Electrical connections

4.5.3.1

Inputs and outputs

The analog inputs and outputs of the analyzers are not intrinsically-safe in the basic version.

For use in hazardous areas, all non-intrinsically safe inputs and outputs must be wired via Ex-coupling relays so that no

external voltages are present should the protective gas supply in the device fail.

You must agree on these additional devices with the relevant local Ex specialist prior to startup.

4.5.3.2

Connection diagrams

Connection diagram for the versions Ex px with leakage compensation

Figure 4-5

Connection diagram for the analyzer versions Ex px with leakage compensation

Compact Operating Instructions in accordance with EN 61010-1 and EN 60079-0

A5E45779389002-01, 09/2018