Ford VMM Manuel d'utilisateur télécharger pdf (Page 9)

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WARNING - Do not alter this equipment’s cabling during

lightning activity if there is any cabling connecting from the

equipment to the outside of the building in which this

equipment is installed ie through a pc connector.

A defective electrical earth connection to any equipment may cause an electric shock hazard. This

hazard may pass through the signal cabling and to any other equipment interconnected. It is

recommended that electrical wiring is checked at frequent intervals and whenever alterations are

made.

If signal cables are added to or removed from this equipment, switch off the electrical power supply

to this and other connected equipment.

Pollution Degree 2 – Normally only non-conductive pollution occurs. Occasionally a temporary

conductivity caused by condensation must be expected.

Installation Category 2 – Local level, appliances, portable equipment etc. with smaller transient

over-voltages than Installation Category 3 (Over-voltage Category).

The measurements section of the VMM is designed for use in Installation Category 1 – Signal level,

special equipment or parts of equipment, telecommunication, electronic etc., with smaller transient

over-voltages than Installation Category 2.

DO keep the VMM away from devices that generate radio interference.

CAUTION – Do ensure the VMM is not subjected to extreme

heat or prolonged exposure to direct sunlight that may

cause heating of the VMM.

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Ford VMM Manuel d'utilisateur Page 9