User's Manual

DS840LSN | Installation Guide | 8. Supervision Features EN | 7
Bosch Security Systems | 9/03 | PRELIMINARY 4998132113Ar11
8. Supervision Features
The supervision features function as follows:
• PIR/Microwave: The complete circuit operation
of these subsystems is checked approximately
every 12 hours. If the PIR or microwave subsystem
fails, this will be communicated to the control
panel.
• Default: The detector will default to PIR
technology protection if the microwave subsystem
fails.
9. Other Information
• Maintenance: At least once a year, the range and
coverage should be verified. To ensure continual
daily operation, the end user should be instructed
to walk through the far end of the coverage
pattern. This ensures an alarm output prior to
arming the system.
• Pattern Masking: The PIR coverage pattern may
be masked using masking tape or electrical tape on
the inside of the mirror.
Many adhesives will either destroy the
mirror surface or leave enough residue
behind to degrade the coverage
performance. Be sure to clean the mirror
surface with a mild window cleaning
solution after masking removal.
Masking only eliminates the PIR portion of
the coverage and has no affect on the
microwave pattern.
Add the Pet Filter for pet applications only.
10. Using Pet Immunity
The DS840LSN detector provides reasonable
protection from nuisance alarms caused by the
following sources:
• One dog up to 27 kg (100 lbs.)
• Up to 10 cats
• Multiple small rodents, such as rats
• Random flying birds
The Pet Filter is not a mirror mask. Use only
the supplied filter for pet applications.
To take full advantage of the Pet Immunity feature, the
following steps should be followed:
1. Add the Pet Filter to the mirror (included in the
hardware bag). See Figure 8.
Figure 8: Applying the Pet Filter
1
2
1 - Pet Filter
2 - Mirror Assembly
2. Mount the detector 2 m (6.5 ft.) high and adjust the
Mirror angle as in Section 6. Mirror Alignment.
3. Mount where the animals can not come within
1.8 m (6 ft.) of the detector by climbing on
furniture or other objects.
4. Adjust the microwave range for the minimum
acceptable coverage for the room in which the
detector is installed.
Pet immunity is only available when using
the filter provided with the detector. This
pet nuisance protection has not been
verified by Underwriters Laboratories, Inc