From the main screen, by pressing the MENU button and selecting ACTIVE EVENTS, it is
possible to view the channels in Alarm/Fault status that have not yet been reset.
FAULT
The Fault status will be activated in the following situations:
5. Short circuit, open circuit, or channel malfunction
6. Removal or malfunction of a ST.G/IN8 or ST.G/OUT16 module
7. Detector in Under-scale (signal below "0")
8. Detector in over-range (signal over 100% of the scale)
Fig. 3.2.1.d) Screen in Fault status
By pressing the Enter key with a fault event selected, a screen opens that shows the event
details:
Fig. 3.2.1.e) Fault event details
TEST/MAINTENANCE
This status is active when one or more channels are in TEST mode, and is used to perform
maintenance of the gas detection system. To put one or more channels in TEST mode, the
user must perform a specific procedure as described later in the manual.
The concentration of gas measured by a sensor in TEST mode will be displayed on the
display of the central unit, but will not generate an alarm status if it exceeds a set
threshold.
Similarly, a relay output in TEST mode will not be activated even in the event of an alarm
or fault.
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