HF074AEN_v0403_04 Atex_IECEx_CSA_FM
Page 19
4. INSTALLATION
4.1. GENERAL
DIRECTIONS
Mounting, electrical installation, start-up and maintenance of this instrument may only
be carried out by trained personnel authorized by the operator of the facility. Personnel
must read and understand this Operating Manual before carrying out its instructions.
The F074-A may only be operated by personnel who are authorized and trained by the
operator of the facility. All instructions in this manual are to be observed.
Ensure that the measuring system is correctly wired up according to the wiring
diagrams. Protection against accidental contact is no longer assured when the housing
cover is removed or the panel cabinet has been opened (danger from electrical shock).
The housing may only be opened by trained personnel.
Take careful notice of the " Safety rules, instructions and precautionary measures " at
the front of this manual.
4.2. INSTALLATION
/
SURROUNDING CONDITIONS
Take the relevant IP classification of the casing into account (see manufactures plate). Even an IP67
(NEMA 4X) casing should NEVER be exposed to strongly varying (weather) conditions.
When panel-mounted, the unit is IP65 (NEMA 4)!
When used in very cold surroundings or varying climatic conditions, take the necessary precautions
against moisture by placing a dry sachet of silica gel, for example, inside the instrument case.
Mount the F074-A on a solid structure to avoid vibrations.
