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5.- Operation<br />
GAS concentration (ppm)<br />
**<br />
Alarm level<br />
Pre-alarm<br />
level<br />
A B C D E C F B D E C<br />
F<br />
t<br />
STATUS<br />
ALARM STATION<br />
ACOUSTIC<br />
ALARM<br />
Alarm<br />
RELAYS<br />
Prealarm<br />
GAS DETECTOR<br />
A<br />
B<br />
C<br />
D<br />
No alarm Off Off Off Slow flashing Off<br />
1 2 3 4 5 6<br />
Delayed<br />
pre-alarm<br />
Off Off Off Off Quick flashing<br />
1 2 3 4 5 6<br />
Pre-alarm Flashing On Flashing Off Quick flashing<br />
1 2 3 4 5 6<br />
Delayed<br />
alarm<br />
Flashing On Flashing Off On<br />
1 2 3 4 5 6<br />
E<br />
F<br />
Alarm Flashing On Two-tone sound Off On<br />
1 2 3 4 5 6<br />
Saved alarm /<br />
pre-alarm<br />
Detector /<br />
wiring fault<br />
Without<br />
power supply<br />
*<br />
Off Flashing Off Slow flashing Off<br />
1 2 3 4 5 6<br />
On<br />
On<br />
3 short tones<br />
every 2 minutes<br />
1 2 3 4 5 6<br />
Flashing / alternative<br />
Off Off Off Off Off<br />
1 2 3 4 5 6<br />
** If during the delay time of a pre-alarm the gas concentration increases to the alarm value, for safety reasons,<br />
the pre-alarm delay will be cancelled, activating the signalling in the station.<br />
* Saved alarm / pre-alarm<br />
They let us check if any alarm / pre-alarm has triggered during our absence.<br />
Mute/reset button<br />
During an alarm, it silences the acoustic alarm, in delay (without alarm), deletes the<br />
existing saved alarms.<br />
- In the <strong>AKO</strong>-522044 alarm, the pre-alarm function comes deactivated from the factory. To activate it,<br />
refer to page 14.<br />
- The CO 2 detector (<strong>AKO</strong>-52215) does not have alarm / pre-alarm delay.<br />
18
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