Installation Instructions
DS938Z Ceiling Mount
Passive Infrared Intrusion Detector with Self-Test
Trademark names are used throughout this document. In most cases,
these designations are claimed as trademarks or registered trademarks in
one or more countries by their respective owners. Rather than placing a
trademark symbol in every occurrence of a trademark name, Bosch
Security Systems, Inc. (hereinafter referred to as Bosch) uses the
names only in an editorial fashion and to the benefit of the trademark
owner with no intention of infringing the trademark.
1.0 General Description
The DS938Z is a high performance passive infrared intrusion detector. It is
equipped with advanced PIR detection and supervision circuits and is
designed to provide an alarm condition upon detection of an intruder
passing through its area of coverage.
Employing balanced dual-opposed sensing elements, the DS938Z passive
infrared (PIR) detector makes use of the fact that all objects give off (emit)
infrared energy, and that the warmer an object is, the greater the amount
of infrared energy given off. The DS938Z uses PIR receiver technology
designed to detect the change in infrared energy caused when a target of
a different temperature from a stable background passes through its field
of coverage.
The coverage pattern consists of sensor zones arranged to form a
circular coverage pattern.
Using Motion Analyzer II circuitry, the detector must first see a change in
infrared energy in one zone followed by a change of energy in the
remaining zone. Therefore, disturbances that occur in only one finger do
not constitute motion and are ignored. This “catch sensitivity” may be
changed in the field by the installer to provide the degree of sensitivity
required by the installation.
Self-test and supervision circuits provide reliable operation in a variety of
installation environments. The result is a highly advanced detector offering
superior performance with freedom from false alarms.
2.0 Certifcations and Approvals
3.0 Specifications
•
Coverage:
360° by 60 ft. (18.3 m) diameter coverage when
mounted on 8 to 18 ft. (2.4 to 5.5 m) high ceilings. Pattern
consists of 64 zones grouped into 16 barriers, with one
additional zone looking straight down from the unit (sabotage).
Each barrier is 30 ft. (9.2 m) long and 4.4 ft. (1.3 m) wide at 30 ft.
(9.2 m). Choice of two optical modules depending on ceiling
height.
NOTE:
For UL Certificated installations, the coverage is 360° by 54 ft.
(16.5 m) when mounted from 10 to 13 ft. (3.1 to
4.0 m) using the AR8-13 Array and when mounted from
15 to 18 ft. (4.6 to 5.5 m) using the AR13-18 Array.
•
Input Power:
6.0 to 15.0 VDC; 18 mA.
•
Standby Power:
There is no internal standby battery. Connect to
DC power sources capable of supplying standby power if
primary power fails. Eighteen mA-H required for each hour of
standby time needed.
Four hours (72 mA-H minimum) are
required for UL Certificated installations.
•
Alarm Relay:
Silent operating Form “C” relay. Contacts rated
125 mA, 28 VDC maximum for DC resistive loads.
Do not use
with capacitive or inductive loads.
•
Tamper:
Normally Closed (with cover in place) tamper switch.
Contacts rated at 28 VDC, 125 mA maximum.
•
Trouble Output:
A solid state open collector conducts to
terminal 1 (-) when the detector is in a trouble condition.
Maximum current load is 25 mA.
•
Temperature:
The storage and operating range is -20° to
+120°F (-29° to +50°C).
For UL Certificated installations, the
range is +32° to +120°F (0° to +50°C).
•
Sonalert
Connector:
Using a Sonalert type sounder (low
voltage) will provide an audible tone when the unit is in alarm.
Use of the sounder is intended only as an aid for walk testing
during installation.
Sonalert is a registered trademark of Mallory Sonalert Products, Inc.
•
Optional Accessory:
TC6000 Test Cord.
Mounting Base
REAR WIRE
ENTRANCE
WIRE
TIE-DOWNS (2)
TERMINAL
STRIP
INTERFACE
PINS
MOUNTING
SLOTS (4)
18
Top View of Enclosure
with Cover Removed
AR8-13
AR8-13
ALARM/TEST LED
INDICATOR (3)
SOUNDER
NOISE
VOLTAGE
CONFIGURATION
SWITCHES
COVER
TAMPER
MODULE TABS (2)
OPTICAL
MODULE
ON
OFF
TEST LEAD
CUTOUT
ANTI-TAMPER SCREW HOLE
REQUIRED FOR EN50131
INSTALLATIONS
ANTI-TAMPER SCREW HOLE
REQUIRED FOR EN50131
INSTALLATIONS
Region Certification
Europe CE
89/336/EEC,
EN55022: 1998 +A1: 2000 +A2: 2003,
EN50130-4: 1996 +A1: 1998 +A2: 2003,
EN61000-4-2: 1995 +A1:1998 +A2: 2001,
EN61000-4-3: 2002 +A1: 2003,
EN61000-4-4: 1995 +A1:2000 +A2: 2001,
EN61000-4-5: 1995 +A1: 2001,
EN61000-4-6: 1996 +A1:2001 +A2: 2001,
EN61000-4-11:1994 +A1: 2001,
EN60950-1: 2001 +A11: 2004
EN50131-1, Grade 2
EN50131-2-2, Grade 2
Environmental Class II
Poland
TECHOM
98/07 Klasy "C"
USA
UL
ANSR: Intrusion Detection Units (UL639)
Sweden INTYG
04-683
