Maintenance and Testing,
Magnetic Test for
Photoelectric
Detectors
Normal
More Sensitive
Less Sensitive
Non-Functional
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.
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
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
(LED flashes
every 4 secs.)
X
X
X
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.
firealarmresources.com
MAG TEST Mode
LED Flashes
LED Flashes
Quickly 6
Slowly 4 Times
Times
X
X
X
5-6
Latches in Alarm
Mode/LED stays "ON"
X
X
X
Continued on next page
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