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DS840LSN | Installation Guide | 7.
Figure 6: Mirror Adjustment Markings
1 - Adjust frame marks
3. See Section 10. Using Pet Immunity for Pet Applications
7.
Walk Test
1. Wait at least two minutes, after applying power, to
start walk tests.
During the warm-up period, the LEDs will
flash red, yellow and green until the unit
stabilizes (approximately one to two
minutes) and has not registered movement
for two seconds. When the LEDs stop
flashing, the detector is ready to be tested.
With no motion in the protection area, the
LEDs should not be flashing. If the LEDs
are flashing, recheck the protection area for
disturbances affecting the microwave
(yellow) or PIR (green) technologies.
7.1
Establishing PIR Pattern Coverage
1. Enable Walk Test via the keypad.
2. Turn the Microwave range adjust to minimum
(counter-clockwise) and replace the cover.
Figure 7: Microwave Range Adjustment
3. Walk test across the pattern at its farthest edge,
then several times closer to the detector. Start
walking from outside of the intended protection
area, and observe the three colored LEDs. The
edge of the pattern is determined by the first green
PIR activation of the LEDs (or the first red
activation if the yellow microwave LED activates
first).
4. Walk test from the opposite direction to determine
both boundaries.
5. While standing 3 m to 6 m (10 ft. to 20 ft.) from
the detector, slowly bring your arm up and into the
pattern to mark the lower boundary on PIR alarm.
Repeat from above for the upper boundary.
Bosch Security Systems | 9/03 | PRELIMINARY 4998132113Ar11
Walk Test
1
The center of the pattern should be pointed
toward the center of the intended
protection area.
6. If the desired coverage cannot be achieved, try
angling the coverage pattern up or down to assure
the pattern is not aimed too high or low.
7.2
Establishing Microwave Coverage
Wait one minute after removing/replacing
the cover so the microwave portion of the
detector can settle. Wait at least ten
seconds between the following walk testing
procedures.
1. Enable Walk Test via the keypad.
2. The LEDs should be OFF before walk testing.
3. Walk test across the pattern at the intended
coverage's farthest end. Start walking from outside
the intended protection area and observe the 3
colored LEDs. The edge of the microwave pattern
is determined by the first yellow, microwave
activation of the LEDs (or the first red activation if
the LEDs show green first).
4. If adequate range can not be reached, increase the
Microwave Range Adjust slightly. Continue walk
testing (waiting one minute after
removing/replacing the cover) and adjusting the
range until the farthest edge of desired coverage
has been accurately placed.
Do not adjust the microwave range higher
than required. Doing so will enable the
detector to catch movement outside of the
intended coverage pattern.
5. Walk test the unit from all directions to determine
all the pattern boundaries.
7.3
Verify Detector Coverage
The LEDs should be OFF before walk testing.
1. Walk test the unit from all directions to determine
the detection boundaries. A detector alarm is
signaled by the first red activation of the 3 colored
LEDs after an initial green or yellow activation.
EN | 6
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