Simplex 4098 Applications Manual page 52

MAINTENANCE AND TESTING,
Testing (continued)
Continued
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LESS SENSITIVE - When in MAG TEST, if the detector is less sensitive
than the minimum calibration, the visible LED slowly flashes four times,
once every two seconds. Following the fourth flash, the detector latches
into alarm and the visible LED stays ON.
•
NON-FUNCTIONAL DETECTOR - If the detector is less sensitive than
the minimum allowable sensitivity or if there is a fault in the temperature
sensing circuit (4098-9602), the visible LED does not flash normally. When
in MAG TEST, the visible LED slowly flashes four times, once every two
seconds. After the fourth flash, the detector does NOT latch into alarm and
the LED stops flashing and turns OFF.
If the detector is out of the normal operating range, it should be cleaned. If
the detector still indicates as other than normal sensitivity, replace the
detector.
Magnetic Test for Ionization Detectors
The 4098 Ionization Detectors may be tested with a magnet to verify proper
operation of the Fire Alarm Control Panel.
Note: When ionization detectors alarm, the red LED indicator activates and
latches into the ON position.
Place a magnet against the detector's side (over the location marked by a "" on
the head of the ionization detector) and hold for ten seconds to activate an
internal reed switch. Use the Simplex Magnet Tester (Part No. 553-810).
Ion Detector Sensitivity Test
Plug the 553-832 Ion Detector Test Cable into the Detector's sensitivity voltage
pins located on the Ion Detector Head. Perform the following steps to test the
Ion detector's sensitivity:
1. Connect a 10M/V digital voltmeter to the 553-832 test cable, connect the
negative terminal of the voltmeter to the red wire of the test cable and
connect the positive terminal of the voltmeter to the white wire of the test
cable. The black wire of the 553-832 test cable is not used.
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