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Detectors and Accessories | Motion Ceiling Mount | 193
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.
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 Pointa-
bility:
Coverage is adjustable ±10° horizontally, +2° to -18°
vertically.
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).
DS939
www.boschsecurity.com Bosch Security Systems B.V.
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