REMOVABLE
COVER
VANED
CHAMBER
SENSING
CHAMBER
COVER
REMOVABLE
SCREEN
TESTING
Before testing notify the proper authorities that the smoke detector system is under-
going maintenance and will temporarily be out of service. Disable the zone or system
undergoing maintenance to prevent unwanted alarms. Detectors must be tested after
installation and as part of periodic maintenance.
Test the SD-651 as follows:
NOTE:
Before testing the detector, check to ensure the LEDs blink. If they do not,
the detector has lost power (check the wiring) or it is defective (return it for
repair).
A. Test Magnet (Model no. M02-04-01)
1. Place the magnet against the cover in the location designated by the raised
mark to activate the test feature (see Figure 1).
2. The LEDs should latch ON within 5 seconds indicating alarm and annunciating
the panel.
B. Test Module ( MOD400R).
Use the MOD400R with a DMM or voltmeter to check the detector sensitivity as
described in the MOD400R manual.
C. Aerosol Generator (Gemini 501)
Set the generator to represent 4% to 5%/Ft. obscuration as described in the Gem-
ini 501 Manual. Using the bowl shaped applicator, apply aerosol until unit alarms.
Notify the proper authorities that the system is back on line. Detectors that fail these
tests should be cleaned as described under
MAINTENANCE
and retested. If the de-
tectors still fail these tests they should be returned for repair.
MAINTENANCE
It is recommended that the detector be removed from its mounting base to facilitate
cleaning. The detector is cleaned as follows:
NOTE: Before removing the detector, notify the proper authorities that the smoke
detector system is undergoing maintenance and will be temporarily out of
service. Disable the zone or system undergoing maintenance to prevent
unwanted alarms.
1. Remove the detector cover by prying away the four side tabs with a small-bladed
screwdriver, and then pulling the cover from the base.
2. Vacuum the screen carefully without removing it. If further cleaning is required
continue with Step 3, otherwise skip to Step 8.
3. Remove the screen assembly by pulling it straight out (see Figure 2).
4. Remove the sensing chamber cover by pulling it straight out.
5. Clean the vaned chamber piece by vacuuming or blowing out dust and particles.
6. Replace the sensing chamber cover, aligning the arrow on the top with arrow on
the printed circuit board.
7. To replace the screen, place it over the chamber assembly, turning it until it snaps
into place.
8. Replace the cover using the test module socket and LEDs to align the cover and
then gently pushing it until it locks into place.
9. Reinstall the detector.
10.Test the detector as described in TESTING.
11. Reconnect disabled circuits.
12.Notify the proper authorities that the system is back on line.
Figure 2.
A78-2456-02
N500-20-00
2
I56-651-08R
©2001 Notifier
Figure 1. Bottom and side views showing
position of test magnet
Please refer to insert for the Limitations of Fire Alarm Systems
LED
LED
TEST
MAGNET
PAINTED
SURFACE
www.PDF-Zoo.com
firealarmresources.com
