CiDRA Sonar Process Monitoring System - Manual (Page 21)

8
SUPPLEMENTARY INSTRUCTIONS FOR SAFE
ASSEMBLY AND INSTALLATION
8.1 Use Control Drawing, Install Per Code
Ensure installation is consistent with the requirements of the Control
Drawing (see Annex B or C, depending on transmitter model number)
and that the markings on the equipment are consistent with the
classifications of the installation locations.
Use cables and cable installation techniques consistent with
applicable electric codes of the facility in which it is installed and/or per
the guidance of EN 60079-14.
8.2 Make Correct Terminal Block Connections
Transmitter terminal block connections are as shown in Tables 2, 3, 4,
and 5.
8.3 Use Cable Glands and/or Conduit Entries
Cable entering the transmitter enclosure shall utilize cable glands or
shall enter using conduit with appropriate conduit fittings to maintain
the Zone 2 and IP55 ratings of the transmitter enclosure.
8.3.1 Selection of Cable Glands
Cable glands shall be ATEX-approved for Group II or Group IIC
gasses, have at least an IP55 rating, be appropriately constructed and
sized for the cable and mounting hole where they are to be installed,
and used in a manner consistent with the gland manufacturer’s
instructions. See drawing 20885-01C (Annex A) for a list of
recommended glands and corresponding cable size limitations.
8.3.2 Selection of Conduit Fittings
Conduit entries shall be constructed and mounted such that they do
not alter the type of protection and the specific characteristics of the
electrical apparatus. They shall be locked into the unthreaded holes
at the bottom of the transmitter or into an adaptor plate designed to be
fitted in or on the bottom of the transmitter enclosure.
8.4 Wire With Power OFF
All wiring operations should be performed with dead circuits.
20909-01C Rev 04 Page 8-1