RAVEL
Duct Detector
Fire Alarm System
Beam Detectoe
RE-428DU-S
Addressable Duct Detector.
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Key Features
- High efficient single sampling tube.
- Easy to install.
- One-pipe air sampling system
- Patented venturi pipe and duct housing.
- Test hole on cover.
- Simple installation.
- Simple service and maintenance.
- Device addressing via 8 way DIP switch.
Specifications
Operating Voltage
17 ~ 28 VDC
Operating Temperature
-10 – 60° C
Storage Temperature
-10 – 60° C
Humidity
0 - 95% RH, non-condensing
Reset Voltage
Less than 3V
Standby Current
500 µA
Alarm Current
5 mA
Startup Time
30 sec
Remote Ouput
2mA maximum open collector
Smoke Sensitivity
(2.12 ± 0.61) % obs/ ft. (High: 1.1; Medium: 1.4; Low: 2.3)% obs/ft
Air Velocity
0 – 4000 fpm
Dimensions
(241 L X 195 W X 68 D) mm
Weight
1.20 kg
Air Sampling Tube
Aluminium (Hole Diameter 1.5” (38 mm))
Product Description
This addressable smoke detector can be installed on any side of the duct. The detector RE-428DU-S contains an
intelligent controlling circuit. The circuit adjusts the sensitivity to give an optimal function throughout the entire life of
the detector. Advanced Venturi tube technology with single tube detector. This duct detector housed with the flow
optimization and two feet sampling pipe.
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