LST 2351E Smoke Alarm User Manual


 
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2351E_DBL_LST_EN_0804.PDF • PAGE 1
ABuilding Safety. Building Security.
Optical Smoke Detector
2351E
Description
The Optical Smoke Detector 2351E uses the scattered
light principle, and was developed for the detection of
smoke particles in a wide range of fi re detection applica-
tions. The modern design of the measurement chamber
allows to reliably evaluate the characteristics of fi re.
An internal drift compensation adjusts the alarm thres-
hold by continually evaluating the contamination of the
detector. With that, the sensitivity of the detector is kept
constant for a long time.
Addressable conventional technology is used for alarm
transmission to the fi re detection control panel. The de-
tector addressing can be achieved in 2 ways:
A detector with an Address Module NG58-1 can be
individually identifi ed by the suitable control panel.
An address, which has been stored in the detector by
means of the Remote Programming and Test Unit, is
displayed on the Zonal Display Unit S300ZDU.
A test activation of the detector can be carried out
using the Remote Test Unit ECO1000RTU. In addition to
the test activation of the detector, the Remote Program-
ming and Test Unit S300RPTU can also be used to set
and display the following detector parameters:
• the sensitivity in 3 levels,
• the detector address, and
• the date of the previous maintenance.
Furthermore, the degree of drift compensation (detec-
tor contamination) and the current condition of the de-
tector can be read out.
The detector can be attached to various detector bases
and it can be protected against theft.
Addressable conventional technology
Sensitivity selectable in 3 steps
Addressing by means of address
module or detector parameterisation
Remote readout of detector condition
Extremely fl at design
Function testable with Remote Test
Unit ECO1000RTU
Specifi cations
Operating voltage Supply through the detector line voltage
Current consumption typ. 75µA (quiescent)
Ambient temperature -30°C to +70°C
Relative humidity 5 – 95% (no condensation)
Dimensions ø × H 102 × 32.5 (mm)
Colour cream
Weight 75g
Approval VdS G202012
Order number 241040
Order name Optical Smoke Detector/Conv./300/SS 2351E