Edwards ModuLaser User Manual

Chapter 5: Technical specifications
88 ModuLaser Modular Aspirating Smoke Detector Installation Manual
Aspirating system
Detection principle
Laser light scattering mass detection
Laser (detector module)
Safety class
Laser diode
Class 1
Class 3B
Sensitivity range
%obs/m
%obs/ft.
25% min.
0.03% max. FSD
7.62% min.
0.00914% max. FSD
Particle sensitivity range
0.0003 to 10 microns
Alarm levels
4 (Alert/Aux. Alarm, Prealarm, Fire Alarm, Fire
Alarm 2)
Fan speed
Configurable (1 to 16)
Air flow
measurement
Range
Resolution
Note: Absolute readings of air velocity
(temperature compensated)
1 m/s to 6 m/s (3.3 ft./s to 19.6 ft./s)
0.05 m/s (0.16 ft./s)
Duct air velocity
1219 m/min max. (4000 ft./min) (UL)
Sampling pipe inlets
1 per detector module
Exhaust pipe
1 per detector module
Pipe size
(external diameter) 26.75 mm and 25.0 mm Ø (1.050 in. and 0.984
in.)
P
ipe length
Single pipe
Combined, with up to 3 t-pieces
150 m max.
250 m max.
Sampling holes per pipe
(EN 54
-20 sensitivity class)
20 holes max. for Class A (most sensitive)
40 holes max. for Class B
50 holes max. for Class C (least sensitive)
Average sound pressure level
38.8 dBA (fan speed 6)
Chart record
From 1 month at 1 s resolution up to 5 years at
60 s resolution per detector module
Event log
20,000 events per module

Edwards ModuLaser Specifications

General

Brand	Edwards
Model	ModuLaser
Category	Smoke Alarm
Language	English