Bosch DS835I Series - User Manual

Installation Instructions
for the DS835i/DS835iT Series TriTech Microwave/PIR Intrusion Detectors with Pet Immunity
1.0 Description
The DS835i and DS835iT Series are high performance TriTech passive infrared (PIR)/microwave (MW) motion detectors that 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 DS835i and DS835iT send an alarm signal to the control panel. With the
Pet Friendly
pet immunity, these detectors will not detect a dog up to 100 lbs (45 k) or two 60-lb (26 k) dogs, up to 10 cats, numerous rodents, or flying birds.
This pet immunity feature has not been tested by Underwriters Laboratories, Inc. (UL).
3.0 Installation
3.1 Remove the cover using a small
flat-blade screwdriver.
3.2 Press the vertical adjust tab
toward the side of the base and lift out
the board.
3.3 Select a mounting location.
Mount the sensor where an intruder will most
likely cross through the coverage pattern.
Note: The upper areas are not pet
immune.
3.5 Observe the Pet Immunity mounting restrictions.
Pet
Immune
Area
NO
OK
LED ON
7.5-9ft
7.5-9ft
• Input Power: 6 VDC to 15 VDC, 16 mA standby (up to 35 mA during
walk testing and alarm). Only use a limited power
source up to 5 A maximum.
• Standby Power: No internal standby battery. For UL Certificated
installations, the control unit or a Listed burglary
power supply must provide 4 hrs (64 mAh) standby
power.
• Alarm Relay: Silent operating Normally Closed reed relay. Contacts
rated 3 W, 125 mA, 28 VDC maximum for DC resistive
loads; 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.
• Temperature: 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).
• Microwave Frequency:
DS835i/835iT: 10.525 GHz (UL Listed)
DS835iTA: 10.687 GHz (Export only, not UL Listed)
DS835iTB: 9.9 GHz (Export only, not UL Listed)
• Coverage: 35 ft by 35 f. (10.7 m by 10.7 m)
• Tamper: ("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.
• Options: B335 Low Profile Swivel Mount Bracket, B338 Ceiling
Mount Bracket. (Using brackets is not recommended for pet
applications and might reduce range and increase dead zone
areas).
• Reading Bosch Security Systems, Inc. Product Date Codes
For Product Date Code information, refer to the Bosch Security Systems,
Inc. Web site at: http://www.boschsecurity.com/datecodes/
Bottom of Detector
Insert screwdriver here or here
Optional anti-tamper
screws at each end
3.4 Avoid:
Don't point where pets can climb.
7.5 - 9 ft.
(2.3 - 2.7 m)
Mount the detector 7.5 - 9 feet
(2.3 - 2.7 meters) above the floor
2.0 Specifications
Moving Objects
Heat
Sources
Windows
and
Uninsulated
Walls
Direct Hot or
Cold
Drafts
Mounting
Outdoors
Direct Sunlight
Air
Conditioning
Outlets

Summary

Description

Specifications

Input Power

Specifies the required input voltage and current for the detector.

Standby Power

Details requirements for the control unit or power supply for standby power.

Alarm Relay

Describes the specifications and limitations of the alarm relay contacts.

Temperature

Outlines the storage and operating temperature ranges for the detector.

Microwave Frequency

Lists the microwave frequencies for different detector models.

Coverage

Specifies the detection coverage area of the sensor.

Tamper

Details the tamper switch specifications for 'T' models.

Options

Lists available optional accessories like mounting brackets.

Installation

Remove the cover

Instructions on how to safely remove the detector's cover.

Detach the circuit board

Steps to detach the circuit board from the base using the vertical adjust tab.

Select a mounting location

Guidance on choosing an optimal location for the detector.

Avoid mounting locations

Lists environmental factors and locations to avoid during installation.

Pet Immunity Mounting Restrictions

Specific guidelines for mounting the detector in pet-friendly applications.

Mount the detector

Instructions for physically mounting the detector to a surface.

Wire the detector

Detailed steps for wiring the detector's power and alarm contacts.

Select LED operation

Configuration options for the detector's LED indicator.

Look-down mask

Instructions for peeling the mask for look-down functionality in non-pet apps.

Microwave range adjustment

Guidance on adjusting the microwave range and potential pitfalls.

Walk test the detector

Procedure for performing walk tests after installation and annually.

Coverage Patterns

FCC Notice

Bosch DS835I Series Specifications

General

Brand	Bosch
Model	DS835I Series
Category	Security Sensors
Language	English