DW1500110 Rev.K1
Sep 18 2015
14
B. For the smoke detector sensitivity
1. Detector sensitivity can be tested using Detector Sensitivity Tester "Trutest” (No Climb Products Limited).
Please follow the manufacturer’s recommendations on their use.
Where the sensitivity limits for the tester are 1.78%/ft. ~ 3.60 %/ft.
2. Check the red LED indicator lights on the EVCA-P smoke detector within the sensitivity limits. If the red LED
fails to light in the range, check the power to the detector and the wiring in the detector base.
3. After the detector has given the alarm condition, the detector automatically is reset by the control panel. It
may be necessary to allow a short time to elapse before resetting the detector, to allow any residual aerosol
from the test to disperse.
4. Detectors that fail these tests should be cleaned as described under MAINTENANCE Section and retested. If
the detectors still fail these tests they should be returned for repair.
5. Before proceeding to the next detector, ensure that the detector previously tested does not re-operate due to
the presence of residual aerosol.
Section 8 - MAINTENANCE
Notes: • Before cleaning, notify the proper authorities that the system is undergoing maintenance, and therefore the
system will temporarily be out of service.
• Disable the IDC Line or system undergoing maintenance to prevent unwanted alarms.
It is recommended that the sensor be removed from its mounting base for easier cleaning and that sensors be cleaned
at least once a year.
1. Carefully remove the detector head from its base.
2. Use a soft, lint-free cloth, moistened with alcohol for sticky deposits, to clean the plastic enclosure.
3. Using a soft bristle brush (e.g. an artist’s paint-brush) carefully brush between the vanes of the photo chamber in a
linear motion away from the apertures on the plastic enclosure.
4. Ensure that no debris remains on or around the photo chamber once cleaning is complete.
If the unit needs further cleaning, or is damaged or corroded, please return the complete detector to Nittan CO.,
LTD. for warranty service.
5. Reinstall the detector.
6. Test the detector according to Section 7 - TESTING.
7. Set the system back to normal operation mode.
8. Notify the proper authorities that the system is back on line.
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