Technical Manual: ST-PY-AS - 000026 (Changes are subject to DCRN)
Operational Test:
The purpose of the Operational Test is to confirm the sensor’s
correct operation in response to a smoke condition.
Take any necessary precautions at the control panel to limit the sounding
of the alarm sounders/bells and any fire service summoning device.
To test the optical sensor, introduce a discrete amount of smoke into
the detector head, e.g. using a 'No Climb - Solo' smoke test head.
Check that the sensor gives an alarm condition within 15 seconds.
Check the LED indicator on the ST-PY-AS sensor illuminates and any
remote indicator LED fitted also illuminates.
After the sensor has given the alarm condition, reset the sensor
from the control panel. It may be necessary to allow a short time to
elapse before resetting the sensor, to allow any residual smoke from
the test to disperse.
iv) Before proceeding to the next sensor, ensure that the sensor just
tested does not re-operate due to the presence of residual smoke.
Functional Tests:
The functional test checks the sensors operation. These detectors
may be returned to our factory for Functional Testing.
Cleaning
Note: The sensor head should NOT be disassembled.
i) Carefully remove the sensor from its base.
ii) Use a soft, lint-free cloth, moistened with alcohol, for sticky
deposits, to clean the plastic cover.
iii) Using a soft bristle brush (e.g. an artists paintbrush) carefully
brush between the vanes of the case in a linear motion away
from the apertures on the plastic case.
iv) Ensure that no debris is left on or around the case once cleaning
is complete.
v) If the unit needs further cleaning or is damaged or corroded,
please return the complete detector to Nittan (UK) Ltd. for service.
Date:
16.04.09
Issue:
2
• analogue addressable photoelectric sensor
instruction manual
sensortec
sensortec
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