Sensitron PL4 +D - Active Events and Event Management

MT4412E Rev.2 15/10/2019 Pagina 28 di 30
SYSTEM INFO information about the gas control unit (name, FW and HW
versions, etc.)
ACTIVE EVENTS (appears only if there are active events, i.e. Alarms or Faults
that have not been reset)
(*) sub-menus available only if the login is as Engineer (E).
3.4) Active events and event management
By selecting ACTIVE EVENTS and pressing ENT, a list of current active events is
displayed.
If there are active Alarms and Faults/Emergency situations, they will be shown on two
screens.
Alarm screen
Fault screen
Fig. 3.5.1 Active Events Screen
When a new event occurs, the screen will automatically switch to the ACTIVE EVENTS
list and the buzzer of the gas control unit will sound. Until ACK is pressed for the new
event, it will not be possible to go back to the main screen.
The screens in Figure 3.5.1 show events for which ACK has not yet been pressed.
Once the event has been acknowledged (pressing ACK), an "X" is shown in the right
column.
It is possible to perform 3 operations for active events:
- press ENT per additional details about the event
- press ACK to acknowledge the event and silence the buzzer of the gas control unit
- press RST (Reset) to restore the gas control unit to its normal status (this is only
possible if ACK was pressed before and if the gas detector is no longer in the alarm
and/or fault status)
ACK
When an event occurs (alarm or fault), the buzzer of the gas control unit will sound and
the display will switch to the Active Events page, which will indicate the sensor in Alarm
and/or Fault. To silence the buzzer of the gas control unit, turn the key to the gas control
position (ACK) and press the ACK key; the gas control unit buzzer will stop and an X
will appear on the right hand event line.
RESET
Pressing 2 RESET with the cursor on the active event previously acknowledged (the
one marked with "X"), this will get reset and the event will disappear from the active
events list. As described above, there are two situations:
1. the user is already logged in for a previous operation that requires login.