Varec 4532 manual Safety instructions

4532 Safety instructions

2Safety instructions

2.1Installation, 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.

2.2Product Requirements

2.2.1Power 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.

2.2.2Use 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.

2.2.3External 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.

2.3Operational safety

2.3.1Hazardous 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.

Varec, Inc. 3