AKO -522014 Einleitung Seite 20

Luminous button
CENTRAL
BUTTON
Detector/wiring
fault
1
The input indicator corresponding to the active button will turn on.
6.- Maintenance
Clean the surface of the equipment with a soft cloth, water and soap.
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Do not use abrasive detergents, petrol, alcohol or solvents, as this might damage the sensor.
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AKO guarantees the calibration of the detectors during the first 3 years from the date of
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purchase, and after this time, it is advisable to replace the detector.
We recommend changing the detector in the event of having been exposed to high gas concentrations.
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According to standard EN-378, the correct operation of the detector should be checked at
least once a year, ask about if your current local regulations require lower intervals.
CHECK METHOD
Preparation:
Disconnect the unit's power supply, open the detector's cover and turn the delay switch to "Without delay".
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Close the cover and connect the unit's power supply again. Wait for 5 minutes before making the check.
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Start of the check:
AKO-52211 (Type A): Put a normal lighter 5 cm underneath the detector and release gas for 4 seconds.
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AKO-52212 (Type B): Put a normal lighter 10 cm underneath the detector and release gas for 2 seconds.
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Check that:
The pre-alarm activates after a few seconds. The detector's green indicator turns off and the red indicator
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starts to flash. The station beeps intermittently. The pre-alarm relay activates.
The alarm then activates, and the detector's red indicator turns on permanently. The alarm station emits a
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two-tone sound. The alarm relay activates.
The alarms disappear after 1 to 2 minutes. The detector's red indicator turns off and the green indicator
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starts to flash slowly. The alarm and pre-alarm relays deactivate.
ALARM STATION
ACOUSTIC
1 2 3 4
ALARM
Off Off
1
On Two-tone sound
On
3 short tones every 2
1
On
On
minutes
20
TRAPPED PERSON
ALARM RELAY
Off
5 6
5 6
5 6
7
7
7