7 – Menus 49
Maintenance
Access
Successively press the keys Menus and Maintenance.
1 Line On/Off
Sets the line to stop (the line is not powered and the detectors are at stop; no
event can be generated from then on).
2 Detector On/Off
Sets the detector to stop (no event can be generated from then on) if it was not
issuing an alarm or failure.
3 Test On/Off
Allows for the verification of the proper operation of a detector. In this mode,
recordings and alarm relays are suppressed.
4 Simulation
Upon its selection, the message “The central unit no longer ensures detection” is
displayed.
□ The central unit no longer keeps account of inputs (detectors, logic inputs).
□ The simulation measurements/status are initialized to the current
measurement/status values. The relays, the internal buzzer, and the analog
outputs remain in their current status.
□ The screens, management of relays, outputs, etc. are those of Normal
operation.
□ The internal relay and the common default LED are activated.
□ To change the value of a detector, use the keys to increase or decrease
the measurement value simulated from –15% to 115%. For a logic input, use
the keys to select the input, to select Alarm or Alarm Off.
□ The banner of alarms does not appear.
□ The events log indicates Begin Simulation and End Simulation.
□ Exit the simulation mode by pressing the End simul key. Automatic release
then occurs and resets the average values to zero. The current measurements
are displayed once more.
Information
1 Detectors
This displays the main information on the detector (type, range, detected gas).
2. Events
1. Alarm events
This displays, for each of the detectors concerned: detector ID, alarm type (Al1, Al2,
Al3, Al1mean, Al2mean, Al3mean, OVS), status (activated = ON or deactivated =
OFF) as well as the date and time of occurrence or of the release.
The letter “S” appears on the line if the events were obtained when the MX43 was in
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