
Installing the Detector
40
SharpEye™
40/40L, LB and 40/40L4, L4B User Guide
•
Gaps, ic, should not be modified to be any larger, and lengths, L, should not
be modified to be any shorter than the values shown in the table above.
•
Units may be painted or fitted with optional accessories, some of which are
made of a non-metallic material or have a non-metallic coating which could
potentially generate an ignition-capable level of electrostatic charge under
certain extreme conditions. Therefore, these units should not be installed in a
location where they may be subjected to external conditions (such as high-
pressure steam) which might cause a build-up of electrostatic charges on the
non-conducting surfaces. Cleaning of the equipment (except window) should
be done only with a damp cloth.
•
The 3 fastening screws used to screw on the cover of the flameproof
compartment have a yield stress of 344N/mm
²
. Any replacement fasteners
must have a yield stress of at least this value.
•
When the duct mount is fitted and the equipment is intended to be mounted
to a heated/cooled air duct/process vessel, it should be verified that the
temperature of the air duct/process vessel should not be capable of heating or
cooling any part of the equipment enclosure to a temperature outside the
marked maximum ambient temperature range prior to switching the
equipment on, when taking into account surrounding ambient temperature.
3.4.2
General Instructions
•
The cable entry point may exceed 167°F/75°C. Suitable precautions should be
taken when selecting the cable.
•
The equipment may be used with flammable gases and vapors with apparatus
groups IIA, IIB, and IIC:
•
T4 in the ambient temperature range: -67°F/-55°C to +167°F/+75°C.
•
T4 in the ambient temperature range: -67°F/-55°C to +185°F/+85°C.
•
Installation should be carried out by suitably trained personnel in accordance
with the applicable code of practice such as. EN 60079-14:1997.
•
Inspection and maintenance of this equipment should be carried out by
suitably trained personnel in accordance with the applicable code of practice
such as EN 60079-17.
•
Repair of this equipment should be carried out by suitably trained personnel
in accordance with the applicable code of practice such as EN 60079-19.
•
The certification of this equipment relies upon the following materials used in
its construction:
•
Enclosure
: 316L Stainless Steel or Aluminum
•
Window
: Sapphire Glass