Appendix A
Internal Relay Option
General Information
The internal relays are designed to enable Ultima X Series Gas
Monitors to control other equipment. There are four relays within
the Ultima X Series Gas Monitor’s module:
• three alarm relays
• one fault relay.
Once configured, the relays activate when the Ultima X Gas
Monitor detects an alarm condition. Similarly, the fault relay
de-energizes when a fault condition is detected.
• The internal relays will be within the read-out module.
The alarm relays are enabled in the non-latching, de-energized
mode at the factory.
• To disable or configure the alarms, you need the Ultima
Controller (P/N 809086).
• The fault relay is normally-energized so the relay de-activates
into a fail-safe condition if a fault or power outage occurs. See
"Fault Relay" later in this Appendix.
"
CAUTION
To prevent false alarms in the following instances, alarms/relays
are temporarily disabled:
1) During the first minute from power-up
2) During calibration
3) For two minutes after calibration.
Unpacking, Mounting and Wiring the Ultima X Series
Gas Monitor with Internal Relays
Unpack, mount and wire the Ultima X Series Gas Monitor
according to Chapter 1, "Set-up." All electrical connections to the
Ultima X Series Gas Monitor can be made via the clearly marked
board-mounted connections.
• See FIGURES A-1 and A-2 for Dual module general-purpose
and explosion-proof Ultima X Series Gas Monitors, respectively.
• See FIGURES A-3 and A-4 for Single module general-purpose
and explosion-proof Ultima X Series Gas Monitors, respectively.
• See Ultima Controller and Calibrator Manual (P/N 813379) for
complete configuration information.
Appendix A, Internal Relay Option
A-1
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