5 – Installation and set-up MultiExact Gas Analyser
5.2.4 Alarm and status relay connections (option)
The alarm and status relay connections are separated from
the analyser mains circuits by reinforced insulation. The terminals
must only be connected to circuits that are themselves separated
from mains voltages by an isolation method that provides
at least this level of protection.
The analyser can be supplied with alarm and status relays. These can be used to
indicate a measurement alarm has been set off or to indicate whether a Service in
Progress (SIP) or maintenance required status has been raised.
1. Connect the wires in your cable to the screw terminals on the 6 pin connectors
provided. Section 2.3 provides information on the rating and size of cable.
2. Pins 1 and 2 are connected if alarm 1 is active (Figure 14).
3. Pins 4 and 5 are connected if alarm 2 is active (Figure 14).
Figure 14 – Alarm relay interface connector
4. Pins 1 and 2 are connected if service in progress status is active (Figure 15).
5. Pins 4 and 5 are connected if maintenance required status is active (Figure 15).
Figure 15 – Status relay interface connector
30 05410001A / Revision 6
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