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1.1.
1.2.
1.3.
1.4,
1.5.
1.5.1.
1.5.2.
1.5.3.
1.5.4.
1.5.5.
1.5.6.
SAFETY INSTRUCTIONS
WARNING:
These servicing instructions
are of use by qualified personnel only. To reduce the risk of electric shock,
do not perform any servicing other then that specified in the Operating Instructions unless you are fully
qualified to do so.
Read these pages carefully before installation and use of the instrument.
'The following clauses contain
information, cautions and warnings which
must
be followed to ensure
safe operation and to retain the instrument in a safe condition.
Adjustment, maintenance and repair of the instrument shall be carried out only by qualified personnel.
SAFETY PRECAUTIONS
For the correct and safe use of this instrument it is essential that both operating and servicing personnel
follow generally-accepted safety procedures in addition to the safety precautions specified in this manual.
Specific warning
and caution
statements,
where
they apply, will be found throughout the manual.
Where
necessary, the warning and caution statements and/or symbols are marked
on the apparatus.
CAUTION AND WARNING STATEMENTS
CAUTION:
Is used to indicate correct operating or maintenance procedures in order to prevent damage to or de-
struction of the equipment or other property.
WARNING:
Calls attention to a potential danger that requires correct procedures or practices in order to prevent
personal injury.
SYMBOLS
C)
Protective earth
(black)
(grounding) terminal
IMPAIRED SAFETY—PROTECTION
Whenever it is likely that safety-protection has been impaired, the instrument must be made inoperative
and
be secured
against any
unintended
operation.
The matter should then be referred to qualified
technicians.
Safety protection is likely to be impaired if, for example, the instrument fails to perform the intenced
measurements or shows visible damage.
GENERAL CLAUSES
WARNING:
The opening of covers or removal of parts, except those to which access can be gained by hand, is likey
to expose live parts and accessible terminals which can be dangerous to live.
The instrument shall be disconnected from all voltage sources before it is opened.
Bear in mind that capacitors inside the instrument can hold their charge even if the instrument has bein
separated from all voltage sources.
WARNING:
Any interruption of the protective earth conductor inside or outside the instrument, or disconnection
of the protective earth terminal, is likely to make the instrument dangerous.
Intentional interruption is prohibited.
After repair and maintenance in the primary circuit, safety inspection and tests, as mentioned in chapier"
8, have to be performed.
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