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2.4
Certification Instructions
Warning
: Do not open the detector, even when isolated, when flammable atmosphere
present.
Use the following certification 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 and IIB + H2:
•
T5 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 shall 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 shall be carried out by suitably trained
personnel in accordance with the applicable code of practice such as EN 60079-17.
•
Repair of this equipment shall be carried out by suitably trained personnel in
accordance with the applicable code of practice such as EN 60079-19.
•
The certific ation of this equipment relies upon the following materials used in its
construction:
•
Enclosure
: 316L Stainless Steel or Aluminum
•
Window
: Sapphire Glass
•
If the equipment is likely to come into contact with aggressive substances, then it is
the responsibility of the user to take suitable precautions that prevent it from being
adversely affected, thus ensuring that the type of protection provided by the
equipment is not compromised:
•
Aggressive substances: acidic liquids or gases that may attack
metals, or solvents that may affect polymeric materials.
•
Suitable precautions: regular checks as part of routine
inspections or establishing from the material’s data sheets that
it is resistant to specific chemicals.
•
Special Conditions for safe use: The flame detectors should not be used as safety
related devices in accordance with directive 94/9/EC.
2.5
Installation Cables
Follow the following guideline for the cable installation:
•
All cables to the detector must be well shielded in order to comply
with EMC requirement (see
Technical Specifications
on page 46).
•
Ground the detector to the nearest ground point (not more than 3m from the detector
location).
•
Install the detector with the cable entries placed downwards.
2.5.1
Conduit Installation
The conduit used for the cabling must comply with the following:
•
To avoid water condensation water in the detector, install the detector with the
conduits placed downward, that include drain holes.
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