2
32-0032-r02_2015-05
Numens
46-2 MoGao Road, Dong Qian Lake, Ningbo, Zhejiang, China 315121
© 2015 Ambest Electronics (Ningbo) Co Ltd. All rights reserved. All specifications and other information shown were current at the date of publication
and subject to change without notice.
Commissioning
Smoke Detector
1.
Ensure all the alarm signal services, releasing devices and
extinguisher systems are disabled during the commissioning
period.
2.
Connect power to the detector for approximately 1 min and
check that the red alarm LED indicators flash once every 3 s.
If the LED fails to flash, it indicates the detector is not
operating. Check the wiring for the correct voltage and earth
leakage. Replace the detector if necessary.
3.
Allow smoke from a cotton wick or a test smoke aerosol to
enter the detector-sensing chamber for at least 10
s. When
sufficient smoke has entered the chamber, the detector will
signal an alarm, by continuous illumination of the LED.
4.
Upon alarm, immediately remove the smoke source.
5.
Reset the detector from the control and indicating equipment.
6.
Check that the detector LEDs are off and the control and
indicating returns to the quiescent condition.
Heat Detector
1.
Subject the detector to a flow of warm air at a temperature of
between 65 ˚C and 80 ˚C as follows (this requirement can be
met by some domestic hair dryers).
a.
Start the warm airflow and check that temperature is
correct and stable.
b.
From a distance of approximately 5 cm, direct the
airflow at the guard protecting the thermistor for up to
30 s. The detector will signal an alarm by continuous
illumination of the LEDs.
c.
Upon alarm, immediately remove the heat source.
2.
Reset the detector from the control and indicating equipment.
3.
Check that the detector LEDs are off and the control and
indicating returns to the quiescent condition.
Remote Indicator (where fitted)
Check that the indicator illuminates at the same time as the
detector LEDs.
Output Relay (where fitted)
1.
Follow Heat Detector procedure step 1.
2.
Monitor the output relay for activation.
3.
Reset the detector from the control and indicating equipment.
4.
Monitor the output relay for reset to its quiescent setting.
Auto-Reset (where fitted)
1.
Follow Heat Detector procedure step 1.
2.
Monitor that the detector automatically resets.
The auto-reset will typically reset the detector within 30 s of the
removal of the heat source.
Final Conditions
Ensure all the alarm signal services, releasing devices and
extinguisher systems disabled for the commissioning are returned
to their previous condition.
References
Document Description
31-0044
SNC-300 non-addressable smoke/heat detector
datasheet
View the complete range of products at
www.numens.net
