GIRA
Info
Smoke detector plus / VdS
Instructions for Installation
Smoke detector plus / VdS
02/02
Seite: 1 von 6
Smoke detector plus / VdS with relay module
pure white
Art. Nr.: 0496 06
alu 0496
07
Smoke detector plus / VdS with radio transmitter module
pure white
Art. Nr.: 0496 08
alu 0496
09
Product features
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Battery-operated stand-alone Home Smoke Detector working on photoelectric principle.
•
Automatic self-test for smoke-sensing electronics, therefore extremely reliable and immune to
interference.
•
Option of operating as a wireless network with radio transmitter modules and a wireless alarm unit
(available as extras).
•
Loud pulsating warning tone if smoke detected, approx. 85 dB (A).
•
Battery low-power monitor (LED and short beeps at intervals) warns that battery voltage is
growing weaker, for up to about 30 days.
•
Contamination/fault warning function with LED and short beep.
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Option of operating as a wired network with relay modules (available as extras). Up to 40 smoke
detectors can be linked together. If one smoke detector identifies a fire, the alarm is relayed all the
other smoke detectors in the network.
•
Integrated test button: if the smoke detector emits its warning tone when the test button is
pressed, it is in good working order.
•
Simple mechanical safeguard prevents smoke detector clicking into place in its base if no battery
is fitted.
•
Damage to the detector is not possible if the battery is installed with the wrong polarity.
Operating principle
The smoke detector is an early warning device for smouldering fires as well as flaming fires that
develop smoke. It operates on the proven light scatter principle. lnside the sensing chamber a light
source and a light sensor are arranged so that light normally does not fall on the sensor. It is only
when airborne particles enter the chamber that light is scattered onto the sensor (Tyndall effect) to
produce an electrical signal. This design means that no radioactive source is required. Smouldering
fires in particular are quickly identified by the smoke detector and the alarm given.
If smoke enters the sensing chamber, the built-in sounder is triggered. A logic circuit to eliminate false
alarms delays the alarm signal and resetting by up to 30 seconds.
This product has been approved by the Schadenverhütung GmbH in Cologne (VdS). Only security
products meeting the high quality demands of the prEN 12239 receive this approval.
Important test criteria are:
•
reliable smoke detection characteristics
•
good smoke entry
•
immunity to electrostatically discharge
•
functional check and battery presence control
•
Test
button
