BRUEL & KJAER 2209 - Controls; Function of Controls

2. CONTROLS
No special precautions are normally necessary when using or assembling
the instrument. However, in order to avoid possible damage to the instru-
ment,
the following suggestions are offered:
Store the instrument in a dry, preferably warm, place.
Remove the batteries if the instrument is to remain out of use for a
long time.
Connect and disconnect microphones and adaptors with the power
switched off.
Microphones
and adaptors should be assembled only when they are at
the same temperature.
Do not overtighten microphone and adaptor threads. They should
dismantle easily
with only light finger torque.
In dry weather, be sure to discharge any static electricity from your
body before fitting microphones. A discharge to the meter input
could cause damage.
2.1. FUNCTION OF CONTROLS
The external features and controls of the Impulse Precision Sound Level
Meter and shown in F igs.2.1 and 2.2.
METER SCALE
Removable by sliding out. The scale is reversible, with one side cali-
brated for precision sound level measurements and the other side for vibra-
tion measurements.
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