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D263/D273 Series | Installation Instructions |
2. Connect a digital voltmeter to the D1005 Test Cable.
Connect the negative terminal of the meter to the
black wire of the D1005, and then connect the positive
terminal of the meter to the test cable's red wire. The
white wire of the D1005 is not used.
The voltage measured by the voltmeter is half the
detector's sensitivity, in %/ft (m) obscuration.
3. Multiply the voltage by "2."
Ensure the result is within the factory-marked
calibration range printed on the label on the bottom of
the detector.
4. If the detector is outside the factory-marked calibration
range, remove it and clean it. Or replace is as
described in Section 5.0 Maintenance on page 7.
5. After cleaning the chamber, recheck the calibration
voltage measurement. If the detector is still out of
range, return it for re-calibration.
4.4
Thermistor Test
(For TH and IS models)
Expose the thermistor to a heat source, such as a hair dryer
or a shielded heat lamp, until the detector activates an
alarm and the Alarm LED latches on.
The D273IS has a separate smoke and heat relay. Only the
heat relay changes states during this alarm.
Before proceeding to the next detector,
clear each alarm for every test.
5.0 M aintenance
At least once a year, clean the detector.
Figure 9:
Cleaning the D263/D273 Series Detector
1
2
1 - Insert flat head screwdriver
2 - Cover latch
3 - Cover
6
5.0
Maintenance
1.
2.
Available from A1 Security Cameras
www.a1securitycameras.com email: sales@a1securitycameras.com
Pay particular attention to the screens
when cleaning the detector. In dusty areas
or areas of heavy insect concentration, you
might need to clean the screens more
often.
Unlatch and pry the cover away from the chassis. Refer to
Items 1 through 3 in Figure 9.
1. Grasp the chamber and pull it up and away from the
chassis. Refer to Items 4 and 5 in Figure 9.
2. Clean the cover's interior with a vacuum or clean and
dry compressed air.
3. Clean the chamber's interior with a vacuum or clean
and dry compressed air.
Do not clean the chamber's interior with
water.
4. Replace the chamber by placing it parallel to the
chassis and gently snapping the locking tabs into place.
5. Replace the cover.
6. Connect the terminal block and return the detector to
its mounting plate.
7. Test the detector for proper calibration.
Do not paint the detectors. Paint or other
foreign matter covering the screens can
prohibit or retard smoke from entering the
detector.
4-
Chamber
5 -
Chassis
Bosch Security Systems, Inc. | 02/06 | 31341J
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4
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