7
5 - SYSTEM MAINTENANCE
The simultaneous and prolonged pressure for
of the "
" and "
" buttons enables the test-on
5 seconds
TEST
RESET
Maintenance Test
A further key press in the same mode extends the time of 15 minutes to a
maximum of 60 minutes.
mode in which the control unit does not switch the general alarm relay for a
period of 15 minutes, not even pressing the external manual button.
You can terminate this mode before the natural deadline by resetting the
control unit by pressing 3 consecutive times and within 5 seconds the
RESET
button.
In this mode, before the passage from the current channel to the next, the
"TESt-On" string is displayed followed by the minutes of the general alarm
relay being switched off.
6 - DESCRIPTION OF MICRO-SWITCHES
You can connect 3 probes to the device. The control unit is tested with the probes connected.
Installing, uninstalling or disabling
probe .
sensor (
)
Through the Micro switches on the control unit, you can to activate or to deactivate 3 Zones.
In this case we will proceed to disable a probe, to do this select the switch of the probe (zone) concerned.
In some installations, you may need only one probe.
N.B.: the microswitches are also used for switching off in case of failure.
Zon 1
Zon 2
Zon 3
e
e
e
Micro-switch ( ) to enable or to disable the sensor (probe).
1
Position
ON enabled
Position
OFF disabled
The LEL reading is obtained by shifting the switch to ON
Explosive gas (see display)
SELECTION OF THE TYPE OF GAS MONITORED BY EACH SENSOR (PROBE)
The control unit if fitted with three micro-switches in order to select the type of gas that the connected probes
should monitor.
The ppm reading is obtained by shifting the switch to OFF
Toxic gas (see display)
Zon 1 Zon 2 Zon 3
e
e
e
1 2
3 4
Light signaling of the type of gas selected
ppm
CO
is the concentration reading for
Gas
LEL
Explosive
is the concentration reading for
Gas
(Methane or LPG)
ppm
LEL
Micro-switch ( ) to select the type of gas monitored
2
Position
reading in LEL -
ON
Explosive gas
Position
reading in ppm -
OFF
Toxic gas
