Viscount Allegro
27
1. IMPORTANT NOTES
Power supply
Before making any connection to another instrument, make sure that all the devices concerned
are switched off; this will help you to prevent damage or malfunctions.
Never connect this instrument to the same electrical line as another device which may generate
line disturbances, such as motors or light dimmers.
Positioning
Never expose the instrument to high temperatures (such as direct sunlight in a closed vehicle),
or place it in damp or dusty zones or points subject to strong vibrations.
This instrument may interfere with radio and television reception, so do not use it in the vicinity
of these appliances.
Make sure that the instrument is on a stable surface and horizontal.
Maintenance
For routine cleaning, wipe a soft, dry (or slightly damp) cloth over the instrument. To remove
more difficult dirt, use a gentle, neutral detergent and dry thoroughly with a dry cloth.
Never use petroleum spirits, thinners, alcohol or solvents of any kind, as they might cause the
instrument to be come discoloured or misshapen.
Additional precautions
Protect the instrument against violent knocks.
Never allow objects or liquids to enter the instrument. If this occurs, stop using it immediately.
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