Varec 4532 - Manual (Page 13)

Varec, Inc. 3
4532 Safety instructions
2 Safety instructions
2.1 Installation, commissioning and operation
•
Mounting, electrical installation, start-up and maintenance of the instrument may
only be carried out by trained personnel authorized by the operator of the facility.
•
Personnel must absolutely and without fail read and understand this manual before
carrying out its instructions.
•
The instrument 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
without fail.
•
The installer must make sure that the measuring system is correctly wired
according to the wiring diagrams. The measuring system is to be grounded.
•
Please observe all provisions valid for your country and pertaining to the opening
and repairing of electrical devices.
2.2 Product Requirements
2.2.1 Power source
Check the voltage of the power supply before connecting it to the product. It should be
the exact voltage required for proper operation of the product.
2.2.2 Use in hazardous areas
When using the product in the first or second-class hazard location (Zone 1 or Zone 2)
be sure to use an intrinsically safe or pressure and explosion-proof apparatus. Take the
utmost care during the installation, wiring, and piping of such apparatus to ensure the
safety of the system. For safety reasons, maintenance or repairs on the product while it
is being used with such apparatus should only be performed by qualified personnel.
2.2.3 External connection
When an external connection is required, the product should be protectively grounded
before it is connected to a measurement object or an external control circuit.
2.3 Operational safety
2.3.1 Hazardous area
Measuring systems for use in hazardous environments are accompanied by separate "Ex
documentation", which is an integral part of this manual. Strict compliance with the
installation instructions and ratings as stated in this supplementary documentation is
mandatory.
•
Please use the explosion-proof type for measurement in explosion-hazardous
areas.
•
Instruments used in explosion hazardous areas should be mounted and wired
according to the explosion-proof regulations.