Installation Instructions
DS820i/DS820iT Series
TriTech PIR/Microwave Intrusion Detectors with Pet Immunity
1.0 Description
The DS820i and DS820iT Series are high performance TriTech Passive Infrared (PIR)/Microwave (MW) Intrusion Detectors which use advanced signal
processing to provide outstanding catch performance and unsurpassed false alarm immunity. They are designed to detect movement of a human body in the
interior of a structure as it moves across the Detector’s field of view. When motion is detected, the Detector sends an alarm signal to the control panel. With
Bosch Security Systems Pet Friendly® pet immunity, these Detectors will not detect a dog up to 100 pounds (45 kg) or two 60 pound (27 kg) dogs, up to 10 cats,
numerous rodents or flying birds. This pet immunity feature has not been tested by Underwriters Laboratories.
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Microwave Frequency:
DS820i/820iT:
DS820iTA:
2.0 Specifications
10.525 GHz (UL Listed)
10.687 GHz (Export only, not UL Listed)
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Input Power:
6 to 15 VDC, 16 mA nominal standby (up to 35 mA
during walk testing and alarm). Use only Limited Power
Source up to 5 A maximum.
DS820iTB:
Coverage:
Tamper:
9.9 GHz (Export only, not UL Listed)
20 ft. by 20 ft. (6 m by 6 m)
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Standby Power: No internal standby battery. For UL Certificated
installations, 4 hours (64 mAh) standby power must
be provided by the control unit or by a Listed burglary
power supply.
(“T” models only) Normally Closed (with cover on).
Contacts rated at 28 VDC, 125 mA max. Connect
tamper circuit to a 24-hour protection circuit.
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Options:
Patents:
B335 Low Profile Swivel Mount Bracket , B338 Ceiling
Mount Bracket. (The use of brackets is not
recommended for pet applications and may reduce
range and increase dead zone areas).
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Alarm Relay:
Silent operating Normally Closed reed relay. Contacts
rated 3 W, 125 mA, 28 VDC maximum for DC
resistive loads; and protected by a 4.7 Ω, 1/2 W
resistor in the common “C” leg of the relay. Do not
use with capacitive or inductive loads.
This product is covered by one or more of the
following U.S. patents: #4,660,024, #4,764,755,
#5,077,548, #5,208,567, #5,262,783, #5,450,062,
and #5,670,943.Other patents pending.
Temperature:
The storage and operating temperature range is
-40°F to +120°F (-40°C to +49°C). For UL Certificated
installations, the temperature range is +32°F to +120°F
(0°C to +49°C).
3.0 Installation
3.3 Select a mounting location.
Mount the sensor where an
3.2 Press the vertical adjust tab
toward the side of the base and
lift out the board.
3.1 Remove the cover using
a small flat-blade
intruder will most likely cross
through the coverage pattern.
screwdriver.
LED ON
Bottom of Detector
7.5-9ft
7.5-9ft
Optional anti-tamper
screws at each end
Insert screwdriver here or here
3.5 Observe the Pet Immunity mounting recommendations.
3.4 Avoid:
NOTE: The upper areas are
not pet immune.
Mounting
Outdoors
Direct Sunlight
NO
OK
Direct Hot or
Cold
Drafts
Pet
Immune
Area
Moving Objects
Windows
and
7.5 -9 ft.
(2.3 - 2.7 m)
Uninsulated
Walls
Heat
Sources
Air
Mount the detector 7.5 to 9 feet
(2.3 to 2.7 meters) above the floor
Conditioning
Outlets
Don't point where pets can climb.
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