Sound Level Calibration
6
being calibrated.
(4) On the instrument under test, set the level range
control to the range having 100dB as its upper
limit if 94dB was selected on the sound level
calibrator. If 114dB was selected on the sound
level calibrator, choose a range with on upper
limit of 120dB. The instrument may be set to
FAST or SLOW response and C or A weighting.
(5) Read the level on the instrument under test and
adjust the sensitivity control for the correct
indication of the sound level calibrator level
selected in step.
(6) When the calibrator is not being used, please
switch OFF the power to save the battery.
CAUTION!
Ambient sources of noise or vibration can
cause a false calibration indication; this can be
especially signification at the lower 84dB level.
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