System Sensor BEAM1224, BEAM1224S - Manual (Page 8)

2. Place the blocking material over the reflector, lining it up with the gradu-
ated marks that are 10 less than the detector’s setting in percent obscura-
tion. The detector should not alarm or fault. Keep the material in place
for a minimum of 1 minute.
3. Place the blocking material over the reflector lining it up with the gradu-
ated marks that are 10 more than the detectors setting in percent obscu-
ration. The detector should enter alarm within 1 minute.
4. The detector can be reset with the reset switch on the detector unit, re-
mote reset, or momentarily interrupting power.
5. Notify the proper authorities that the system is back on line.
fIgURE 14. REfLECTOR TEST CARD PROCEDURE:
LINE UP EDGE OF
TEST CARD WITH
APPROPRIATE
OBSCURATION LEVEL
MOVE TEST CARD TO DESIRED AMOUNT OF OBSCURATION
C0267-00
If the detector fails this test several steps should be taken to determine if the
detector is faulty or simply needs to be re-adjusted before returning the unit.
These steps include:
1. Verify all wiring connections and appropriate power is applied to
the detector.
2. Verify that the optical line of sight is free from obstructions and reflec-
tive objects.
3. Apply the maintenance procedure in this manual. Repeat the test proce-
dure. If the detector still fails the test procedure proceed with step 4.
4. Repeat the alignment procedure in this manual. If the alignment proce-
dure is successful repeat the test procedure. If the detector still fails the
test it should be returned.
B. Test Switch
The detector can be tested using the local test switch on the transmitter/re-
ceiver unit or remotely using the remote test station.
The remote test can be used with the BEAM1224/BEAM1224S beam smoke
detector. Follow instructions included with the test station for proper use. See
Figure 8 (Remote Test Station) for wiring diagram.
The BEAM1224S is equipped with an integral sensitivity test feature that con-
sists of a calibrated test filter attached to a servo motor inside the detector
optics. When a test is initiated using the remote test station or local test switch
the test filter is moved in the pathway of the light beam. The on-board micro-
processor then determines if the proper level of signal reduction is received
at the receiver. If the proper level of signal reduction is received the detector
will enter alarm. If the proper level of signal reduction was not achieved, indi-
cating that the sensitivity of the detector is out of tolerance, the detector will
enter the trouble condition.
Always perform a complete reflector blockage test as in step 4 of the Instal-
lation/Alignment procedure to ensure that the pathway between the detector
and reflector is clear.
D400-73-00 8 I56-2294-006R
Note: For the BEAM1224 this test does not satisfy the requirements of NFPA72
for periodic maintenance and sensitivity verification of beam type detectors.
For the BEAM1224S this test in conjunction with the complete reflector block-
age test (see step 4 of the Installation/Alignment procedure in this manual)
does satisfy the requirements of NFPA72 for periodic maintenance and sensi-
tivity verification of beam type detectors.
If the detector fails this test several steps should be taken to determine if the
detector is faulty or simply needs to be re-adjusted before returning the unit
for repair. These steps include:
1. Verify all wiring connections and appropriate power is applied to
the detector.
2. Verify that the optical line of sight is free from obstructions and reflec-
tive objects.
3. Apply the maintenance procedure in this manual. Repeat the test proce-
dure. If the detector still fails the test procedure proceed with step 4.
4. Repeat the alignment procedure in this manual. If the alignment proce-
dure is successful repeat the test procedure. If the detector still fails the
test it should be returned.
MAINTENANCE
NOTE: Before cleaning the detector, notify the proper authorities that the
smoke detector system is undergoing maintenance, and therefore the system
will be temporarily out of service. Disable the zone or system undergoing
maintenance to prevent unwanted alarms.
1. Carefully clean the outer housing lens face. A damp soft cloth with a
mild soap may be used. Avoid products with solvents or ammonia.
2. Carefully clean the reflector. A damp soft cloth with a mild soap may be
used. Avoid products with solvents or ammonia.
3. Notify the proper authorities that the system is back on line.
PAINTINg
The outer aesthetic ring may be painted using a spray or brush type paint of
appropriate type. See specification section of this manual for paint types.
NOTE: Never paint the flat lens surface of the outer housing.
SPECIAL NOTE REgARDINg SMOkE DETECTOR gUARDS
Smoke detectors are not to be used with detector guards unless the combina-
tion has been evaluated and found suitable for that purpose.