Instruction Manual Model 3100 Analyzer
Manual P/N: C5-06-4900-16-0
Manual file name: MN-A-0005, Rev. C
Page 19
mode according to its programmed parameters. Alarm-1, and Alarm-2 relay outputs are released and the
“RUN” indicator LED is turned on.
3.3.3 ALARM-1 Active mode
The Model 3100 initiates Alarm-1 Active mode when it has detected that the measured oxygen
concentration has exceeded the set threshold value of Alarm-1 (section 3.2.2). The “ALM1” indicator LED
will turn on and the “RUN” indicator LED will remain lit. The Alarm-1 relays will change state according to
the analyzer configuration (Appendix C, Factory Setup). The alarm status will be cleared automatically
when the measured oxygen concentration is within the set threshold value of Alarm-1. The “ALM1”
indicator LED will turn off and the Alarm-1 relays will return to their non-active state according to the
analyzer configuration. The Alarm-1 Active mode is overridden by manual access to the user mode
menu.
3.3.4 ALARM-2 Active mode
The Model 3100 initiates Alarm-2 Active mode when it has detected that the measured oxygen
concentration has exceeded the set threshold value of Alarm-2 (section 3.2.3). The “ALM2” indicator LED
will turn on and the “RUN” indicator LED will remain lit. The Alarm-2 relays will change state according to
the analyzer configuration (Appendix C, Factory Setup). The alarm status will be cleared automatically
when the measured oxygen concentration is within the set threshold value of Alarm-2. The “ALM2”
indicator LED will turn off and the Alarm-2 relays will return to their non-active state according to the
analyzer configuration. The Alarm-2 Active mode is overridden by manual access to the user mode
menu.
3.3.5 FAULT Active mode
The Model 3100 initiates Fault Active mode when it has detected that one or more Fault conditions have
been satisfied (see section 4.3.1). The “FAULT” indicator LED will turn on and the Fault relays will
change state. The Fault status will be cleared automatically when no Fault conditions have been
satisfied. The “FAULT” indicator LED will turn off and the Fault relays will return to their non-active state.
The user may view active faults at any time from the control panel (see section 3.2.4).
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