VESDA by Xtralis
VESDA VLC-EX Product Guide
www.xtralis.com
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4
Mounting the Detector
The VESDA VLC-EX can be mounted onto the wall using the mounting bracket on any suitable secure
surface.
Since the VLC-EX is designed to be applied in an environment where there is potentially a hazardous
atmosphere, it is important that all users are aware of and follow the guidance given in the appropriate
standards, including in: EN 60079-14:2008, “Explosive atmospheres. Electrical installations design, selection
and erection” and EN 60079-17:2007, “Explosive atmospheres. Electrical installations inspection and
maintenance” and that they also adhere to the specific rules and regulations for the site where the product is
deployed.
The design of the VLC-EX allows for the detector to be inverted, i.e. with the air inlet at the bottom and the air
exhaust port at the top, when viewed from the front. This is made possible since both the internal plastic and
external stainless steel front covers can be fitted either way up, so that no matter which way up the detector is
mounted, the detector face will have the correct orientation.
Note:
The detector can only be mounted using the mounting bracket included in the packaging.
Caution:
The VLC-EX is intended for hazardous areas where there is little or no dust. Excessive or
unfavorable dust may lead to electrostatic charges occurring within the aspirator. While it is
very unlikely that such charges will lead to a high energy discharge it is recommended that little
or no dust be present. As a guide, if there is settled dust clearly visible on a surface that was
wiped clean a week earlier then further investigations may be necessary.
4.1
Securing the Internal Mounting Bracket
The internal mounting bracket for the VESDA VLC-EX is always mounted in the UP direction. The internal
mounting bracket is clearly marked with the word “UP” and an upward pointing arrow.
205.0mm
8.07in
A
B
C
C
Legend
A
Tab
B
This side to detector
C
Holes, 5/16 in (8mm) diameter
Figure 4-1: The internal mounting bracket for normal and inverted orientations
Secure the internal mounting bracket into the stainless steel VLC-EX case using the fasteners provided,
ensuring that the bracket is horizontally straight and sits flush on the surface.
Summary of Contents for VESDA VLC-500-EX
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