4
ESL 500 Series
Testing the Detector Sensitivity
The detector provides a sensitivity test that allows you to check the
detector sensitivity using a test magnet and the LED indicator on the
detector as follows:
1.
Hold the test magnet up to the raised TEST letters on the top of
the detector for 2 seconds. See Figure 7. Once the test starts,
the alarm LED flashes one to nine times.
2.
Count the number of times the LED flashes and use the
following table to determine the status of the detector sensitivity
and what action to take, if any.
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After the test:
If the sensitivity is within limits and all other tests pass, the
detector goes into alarm and must be reset from the control panel.
If the sensitivity is not within limits or an unserviceable hardware
fault has been detected, the detector LED flashes every 1.5 seconds
until the detector is serviced.
Cleaning the Detector
Clean the detector cover with a dry or damp (water) cloth as needed
to keep it free from dust and dirt.
When necessary, clean the detector interior and replace the optical
chamber as follows:
1.
Disconnect the alarm notification appliances, service release
devices and extinguishing systems.
2.
Slide a flat-blade screwdriver into the slot on the detector cap
and gently push the handle down to pry the cap up and off. See
Figure 9.
3.
Press in on the sides of the optical chamber and pull it up and
away from the detector and discard. See Figure 10.
4.
Use a vacuum to remove dust and dirt from the optical chamber
base.
5.
Line the new optical chamber up with the optical chamber base
and snap it down into place.
6.
Replace the detector cap as follows:
-Line the tabs on the cap with the slots on the detector.
-Insert the cap into the smoke detector and turn clockwise
approximately 15 degrees. It should snap firmly into place.
7.
Test the detector sensitivity (See Testing the Detector
Sensitivity).
8.
Reconnect all alarm notification appliances, service
release devices and extinguishing systems.
Important: The control panel alarm and all auxiliary functions
should be verified for a complete test of the system.
Figure 7. Testing the detector
Figure 8. Unlocking the detector
Figure 9. Removing the detector cap
Figure 10. Removing the optical chamber
SQ
UE
EZ
E
HE
RE
Optical chamber
Optical chamber base
Detector cap
