gazex SL-21 Operating Manual

Warsaw
Read carefully this entire manual BEFORE installation.
Keep the manual as reference for the User of the Gas Detection
System.
INTRODUCTION
The destination of the SL-21 signaling device is optical and sound signaling of
alarm states, appearing on low voltage outputs of alarm devices (e.g. MD control
modules manufactured by GAZEX). The device can be installed as well indoors as
outdoors. It can not be used in areas exposed to explosion conditions.
The sound signal is produced by an acoustical transducer, generating a pulsatory
and modulated high level sound. The transducer control circuit allows for a two step
volume control. The optical signal is produced by very high luminance LEDs. The
LEDs are split into two sections, so a damage of a LED in one section has no
influence on the operation of LEDs in the other section.
The device electronics, using the surface mounting technology (SMT) and
protected by an additional cover against mechanical shocks and adverse environment
influence, guarantees a very high reliability of the device.
The device housing ensures a high resistance to strong mechanical shocks and to
adverse environment influence. The design of the housing and the use of the highest
quality materials guarantees an aesthetic look of the device during many years of its operation and the
necessary level of its antisabotage protection.
The external cover, due to its considerable surface, enables to place on it the device function designation
labels..
DESCRIPTION
Considering its destination, the device should be mounted in a well visible place. The device base
should be attached to a flat surface, using screws and expansion pegs. The cable feed-through and device
mounting holes have been marked in 1:1 scale on a template, contained in the device packing. To avoid
obstacles when mounting the device cover, the device base should be spaced by at least 5 cm from the ceiling
or from other obstacles above the device.
PRODUCER:
©gazex '20011. All right reserved. Reproducing and copying of this manual in whole or part without consent of GAZEX is prohibited.
OPERATING
MANUAL
PRODUCER:
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SL-21 Operating manual edition 2U1en
SOUND & OPTICA
SIGNALLING DEVICE
edition 2U1en
SL-21
gazex'2011 v1108
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v 2011+
©gazex