Optical Laser Smoke Detector
• ADM loop technology with
System Sensor/200 protocol
• Up to 100 times more sensitive than
common optical smoke detectors
• Sensitivity selectable in 9 steps
• Optional pre-alarm function
• Automatic drift compensation
• Highly insensitive to contamination
• Function testable with magnet
Description
The addressable Optical Laser Smoke Detector 7251 The proven ADM loop technology with System Sen-
uses the scattered light principle, and was developed sor/200 protocol establishes a permanent communica-
for the precise detection of smoke particles in a wide tion between the fire detection control panel and the
range of applications. The modern design of the sen- detector. That ensures a periodical function testing of
sing chamber allows to reliably evaluate the characte- the detector. In the control panel all types of fires are
ristics of fire.
detected by continuously comparing fire patterns.
Due to the high sensitivity of the laser detection cham- The influence of contamination on the optical measu-
ber, the detector is ideal for applications where an early rement system is reduced with the help of the laser
fire detection is crucial:
• Computer rooms
• Clean room manufacturing
• Hospitals
principle and furthermore compensated for by using in-
telligent evaluation algorithms. With that, the response
sensitivity of the detector is kept constant for a long
time – a further effective step to avoid false alarms.
• Aspiration smoke detection systems
The two LEDs with 360° visibility indicate the activated
Depending on the application, the high sensitivity of the condition of the detector. The detector address is selec-
detector is individually adjustable in 9 steps between ted with two decadic rotary switches, thus allowing to
0.03%/m and 3.3%/m and provides a number of spe- quickly change the detector without additional tools.
cial applications, which can not be covered using stan-
dard optical smoke detectors.
A detector function test can be conveniently conducted
An optional pre-alarm can be activated two sensitivity using a magnet. The detector can be attached to va-
levels before reaching the alarm level.
rious bases and it can be protected against theft.
Building Safety. Building Security.
A
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