Model 831 Manual Acoustic Calibration 8-11
Outside Range of Normal Sensitivity
When the results of the calibration correspond to a
sensitivity greater than 3 dB outside the range of the nominal
sensitivity for that microphone, the message shown in
FIGURE 8-8 appears.
FIGURE 8-8 Outside Normal Sensitivity Range
When this message is received, it is advisable to scrutinize
the current calibration sensitivity and overload level. Ensure
that the calibration was performed properly and that all of
the equipment is functioning correctly.
> 0.5 dB From Previous Calibration Result
When the results of the calibration indicate a change in
sensitivity greater than 0.5 dB from the previous calibration
results, the message shown in FIGURE 8-9 appears.
FIGURE 8-9 0.5 dB From Previous Calibration
Result
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