5-6
Figure 5-2. Magnet Test Location for 4098-9601, -9602, -9603, -9605
Smoke Detectors using 553-810 Magnet Tester
Table 5-3. MAG TEST/Normal Modes - States and Reactions
STATE Normal Mode MAG TEST Mode
(LED flashes
every 4 secs.)
LED Flashes
Quickly 6
Times
LED Flashes
Slowly 4 Times
Latches in Alarm
Mode/LED stays “ON”
Normal
X X
More Sensitive
X X X
Less Sensitive
X X X
Non-Functional
X
When placing the magnet at the location indicated by a “” mark embossed on the cover, the
visible LED flashes indicating the detector's condition. The following are descriptions of what
you should see when using the MAG TEST.
NORMAL - When in MAG TEST, the detector latches into alarm if the detector is within
calibration range and the visible LED stays ON.
MORE SENSITIVE - When in MAG TEST, if the detector is more sensitive than the
maximum calibration, the visible LED quickly flashes, twice a second. Following the sixth
flash, the detector latches into alarm and the visible LED stays ON.
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.
Continued on next page
Maintenance and Testing,
Continued
Magnetic Test for
Photoelectric
Detectors
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