Simplex 4098 Applications Manual page 54

MAINTENANCE AND TESTING,
Cleaning (continued)
Continued
3. Once all the tabs are unlocked, remove the chamber cover by lifting the
assembly straight off of the chamber. DO NOT ANGLE THE COVER TO
REMOVE. Make sure the standoffs are not broken or bent. Ensure that the
LED and/or Thermistor are in a straight upright position and the Prism is
clean and secure in its holder after removing the cover.
4. When replacing the chamber cover - BE CAREFUL TO LINE UP ALL
APPROPRIATE SPACES WITH THE LED, PRISM, AND/OR
THERMISTOR. THE CHAMBER COVER MUST BE FULLY SEATED.
If the device's sensitivity is still other than what is marked on the device's label,
replace the device. If the sensitivity is within the marked range, go to Step 5.
5. Replace the white protective cover by lining up the locking tabs, the
positioning triangles (∆), and the LED and/or thermistor with appropriate
holes in the cover, and then press the white cover into place.
SPECIAL CONSIDERATIONS FOR QUICKCONNECT SENSORS
QuickConnect sensors are intended to be cleaned in place by using a source of
oil-free, filtered, compressed air such as Dust-Off, Tech Duster, etc. If the
device's sensitivity is still other than what is marked on the device's label,
replace the device.
SPECIAL CONSIDERATIONS FOR ION DETECTOR/SENSORS
Note Do not remove the Ion Detector/ Sensor protective cover.
:
Blow compressed air through the open vents around the device so that air enters
and cleans the black chamber cover assembly located beneath the white
protective cover. If the device sensitivity is still outside the marked range
replace the device and return the failed device to 130 Perinton Parkway,
Fairport, NY 14450-9199.
Important: Once cleaned, the detector/sensor should be tested with smoke per
NFPA 72, Chapter 7.
48
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