Sonel S-36 VLF, User Manual

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S-36 VLF
– USER MANUAL
5

Before starting any repair or maintenance work on the device or other equipment, be
sure to isolate it from the power supply (verify equipment is dead). Only qualified electri-
cians may carry out such work. A qualified electrician is a person who, due to its train-
ing, knowledge and experience as well as familiarity with applicable regulations, is in a
position to assess the work to be performed and to identify possible hazards.

Instructions to radio interference

The S-36 VLF is a device of class A to EN 55011. Radio interference may occur when
the „VLF“ test method is used. In this case, the operator of the device will have to carry
out protective measures (see
sec. 3.3 Avoiding radio interference ).
1.1 General safety regulations
Maintenance and repair work shall primarily be governed by the relevant accident prevention regu-
lations.

Mark components before starting repairs.

When reassembling fittings and devices, always use only new gaskets and locking ele-
ments.

Fit screwed connections only in dry condition (use no lubricants).

Only duly trained and qualified personnel may be assigned for performing maintenance and
repair operations.

Check system for proper functioning after each maintenance and repair work.

Isolate and secure the equipment.

Before carrying out any work on electrical equipment, isolate the parts on which work is to
be performed. This also applies to seemingly minor repairs.

Before connecting the device to the tested object, make sure that the object is not live. Per-
form the check with a voltage tester or measuring instrument (i.e. acoustic-optic indicator
placed on a insulating stick), the serviceability of which has been checked shortly before use
on a live part of the equipment.

Take effective measures to prevent unintentional energising of the point(s) isolated.

Fuses

It is not permitted to rewire or bridge fuses and to use rewired fuses.

If fuses have to be replaced, only fuses of the same or lower design current and type
(slow, quick-acting, superfast) may be used.

Any modifications not authorized by the manufacturer are forbidden.

Fuses must not be disconnected or withdrawn under load. It is not permitted to use fus-
es for switching circuits.

Instructions for handling permanently installed and flexible cables and leads

Mains cables and their clamps must not be used for fastening, attaching or suspending
devices, clothing and the like.

When disconnecting cables, protect them against kinking. Take measures to prevent in-
gress of moisture at ends of cables. Provide a suitable moisture protection, if necessary.

During operation and transportation of the devices, make sure that loose supply cables
will not be subjected to impermissible pull. Never suspend the devices on the supply ca-
bles and, when disconnecting plugs, never pull on the cable for pulling them out of the
socket outlet.