Polon-Alfa ASG-2001, Installation And Maintenance Manual

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IK-E366-001 7
STATUS
ALARM CONTACT OUTPUTS
Terminal A1 Terminal A2 Terminals A3/FLT
ALARM LEVEL 2 CLOSED CLOSED opened opened opened
ALARM LEVEL 3 CLOSED CLOSED CLOSED opened opened
DETECTOR'S FAILURE opened opened opened CLOSED opened
SENSOR'S FAILURE opened opened opened CLOSED opened
POWER FAILURE opened opened CLOSED CLOSED CLOSED
NO SENSOR MODULE opened opened opened CLOSED opened
Table 5: Description of the detector status indication in the state without failure.
Detector status LED power supply (PWR) LED A1 A2 A3
Normal condition It shines constantly Off
Normal condition - heating Flashing at frequency of 1 Hz Off
no sensor module Off continuously Off
A small concentration of gas was
detected Switches off every 2.5s
Alarm condition A1 Switches off every 2.5s A1 constantly on
Alarm condition A2 Switches off every 2.5s A1 and A2 constantly on
Alarm condition A3 Switches off every 2.5s A1, A2 and A3 are constantly on
Table 6: Description of the detector status indication in the emergency condition.
DETECTOR STATUS LED failure (FLT) COMMENTS
Recommended calibration It is constantly on
Occurs one month before the
calibration validity period expires
Sensor fault It is constantly on
6. INSTALLATION OF DETECTORS.
6.1. Place of installation.
The place of installation has a significant impact on the detector's work. The detector should be
mounted:
•
as close as possible to the potential source of gas - no more than 9 m,
•
away from ventilation openings, doors or windows,
•
in a place with free flow of ambient air,
•
in a place with no sun exposure, far from heat sources,
•
in a place not impacted by mechanical damage, vibrations and strong electromagnetic fields,
•
in a place not impacted by direct influence of outside air, water vapour, liquids and car exhaust,
exhaust gases from furnaces and dust.
CO detectors should be mounted at a height of about 1.5-2 m (i.e. at the height of the head of a person
of an average height).
LPG detectors should be mounted at a height of
15 cm away from the hollows in the ground.
CNG detectors should be mounted at a height not lower than 30 cm below the ceiling or on the ceiling.