Thermo Scientific Prima PRO, Руководство пользователя

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Hazardous Area Operation
Introduction
A-2 Prima PRO & Sentinel PRO Mass Spectrometers User Guide Thermo Fisher Scientific
Before installing this equipment, verify that it complies with
standards appropriate to the specific hazardous area.

Compressed air requirements: Supply pressure should be in the
range 4 to 6.9 bar(g) (10 bar(g) if specified in order). Regulators
are provided for each of the two compressed air functions. See
Table A–6 for air flow requirements. The supply must be
capable of maintaining the total required air flow at the above
pressure. Failure to do so will result in power trips and / or
alarms. The supply connection is 1/2” or 12 mm compression.
Tubing of this diameter (minimum) should be used for a
maximum run of 5 meters. Larger diameter tube / pipe should be
used for longer runs. The exact requirements will depend on the
supply pressure and line length.

Note the maximum allowable sample / exhaust pressure (see Table
A–6 ).

Note the requirements of
“Other Hazardous Area
Considerations” later in this appendix.

External enclosure materials are carbon steel (epoxy powder
painted) and stainless steel. The enclosure should not be exposed
to an environment that might cause significant degradation to any
of these materials.
Warning!

Power and / or electrical data cables are NOT to be
terminated in the purged instrument enclosure. All power and
data cables must terminate in an external flameproof box (or
boxes).

The main power supply, serial cables, and a limited amount
of digital I/O connect to the flameproof box attached to the
top of the main instrument enclosure.

Additional (wall mounted) flameproof boxes will be provided
where I/O beyond that available in the base configuration is
used.

Flameproof barrier glands (cable or conduit) must be used when
making connections into flameproof boxes. Separate entries are
provided for power and signal connections. Refer to
Chapter 5:
Installation & Interconnection for further details.

Data communication can be via fibre optic cables that are
terminated direct within the instrument enclosure. When
installing such cables through the user gland plate, suitable
glands and cables must be used. See
Chapter 3: Site
Requirements and Chapter 5: Installation & Interconnection .
Installation