Bosch DS939 Specsheet

Intrusion Alarm Systems | DS939 Panoramic Detector

DS939 Panoramic Detector

www.boschsecurity.com

u Up to 7.6 m (25 ft) mounting height

u Fully adjustable optics for coverage integrity and

customization

u Hinged chassis and base plate for easy installation

The ceiling mount DS939 PIR Detector provides a 21 m
(70 ft) panoramic coverage pattern and can be used
on ceilings as high as 7.6 m (25 ft). With three
separate PIR sections that are fully adjustable, the
DS939 provides coverage integrity at all mounting
heights, plus the ability to customize the coverage for
specific areas. The DS939 uses several patented
processing techniques to provide excellent catch
performance with freedom from false alarms.

Functions

Signal Processing

Uses passive infrared technologies to provide an alarm
condition when the field of protection is activated.
Alarm signals must meet the signaling requirements to
activate an alarm.

First Step Processing

First Step Processing (FSP) allows virtually instant
response to human targets without sacrificing false
alarm immunity to other sources. By adjusting its
sensitivity based upon signal amplitude, polarity, slope
and timing, FSP eliminates the need for the installer to
select the sensitivity level for the application. Each
sensor is processed individually and both must agree
there is an alarm before the alarm relay is activated.

u High efficiency LED and light pipe system for easy

walk testing

u First Step Processing (FSP)

Test Features

• High efficiency LED and light-pipe system provide
walk test indication that is easily viewable from any
angle and at any mounting height.

• Alarm memory feature allows detector to latch the
alarm LED to aid in response.

• Remote LED walk-test control allows the LED to be
enabled or disabled using a switched input without
accessing the detector.

Certifications and approvals

Europe Complies with EN50131‑1, Grade 2

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

CE 2004/108/EC; EN 50130-4:1996

+A1:1998 +A2:2003; EN
60950-1:2006

10.5 m

0 m

0 ft

35 ft

10.5 m

35 ft

10.5 m

0 m

0 ft

35 ft

2.5 m

8 ft

0 m

0 ft

2 | DS939 Panoramic Detector

Region Certification

EN50131EN 50131-2-2 [DS939]

USA UL ANSR: Intrusion Detection Units

(UL639), ANSR7: Intrusion Detection
Units Certified for Canada (cULus)

France AFNOR 2620200007A0 [DS939]

China CCC 2009031901000548

Sweden INTYG 15-476 Alarm Class 1/2, Environmental

Class II (Larmklass 1/2 miljöklass II en­ligt)

Installation/configuration notes

Technical specifications

Enclosure Design

Properties: Modular chassis and hinged mounting

base design provide easy access to field
setup switches and wiring.

Dimensions: 8.9 cm x 17.8 cm

(3.5 in. x 7 in.)

Environmental Considerations

Operating Temperature: -40°C to +49°C (-40°F to +120°F)

For UL Certificated installations, 0°C to
+49°C (+32°F to +120°F)

Sensitivity: Low/High gain settings

Complies with Environmental Class II (EN50130-5)

Mounting

Height Range: 3 m to 7.6 m (8 ft to 25 ft) recommended

Location: Mounts directly to ceiling or to standard 10.2 cm

(4 in.) octagonal electrical box.

Internal
Pointability:

Coverage is adjustable ±10° horizontally, +2° to

-18° vertically.

Top View

Side View

Coverage Information

Coverage is 360° x 21 m (70 ft) diameter when the
detector is mounted 3.7 to 7.6 m (12 ft to 25 ft).
Coverage is 15 m (50 ft) diameter when the detector
is mounted at 3 m (10 ft).
Coverage is 12 m (40 ft) when the detector is
mounted at 2.4 m (8 ft).
Pattern consists of 69 zones in 21 barriers. Each
barrier is 11 m (35 ft) long and 1.5 m (5 ft) wide at 11
m (35 ft). The barriers are grouped into three groups
of seven barriers each. Each group has vertical
adjustment for customized coverage.

Outputs

Alarm Relay: Silent-operating form C relay. Contacts rated 125 mA,

28 VDC, 3 W maximum for DC resistive loads.

Tamper: Normally-closed (with cover in place) tamper switch. A

wall (base) tamper is included. Contacts rated at
28 VDC, 125 mA, 3 W maximum.

Power Requirements

Current: 12 mA standby; 39 mA in alarm with LEDs enabled

Voltage: 9 VDC to 15 VDC

Ordering information

DS939 Panoramic Detector

Provides a 21 m (70 ft) panoramic coverage pattern
and can be used on ceilings as high as 7.6 m (25 ft).

Order number DS939