Svantek SV 104BIS, Руководство пользователя

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SV 104BIS User Manual
Figure 4-10 Calibration in progress screen
Note: To quit the calibration procedure without saving the calibration factor press at the same time
and .
7. It is recommended to repeat the calibration measurement few times. The obtained results should be
almost the same (with
±
0.1 dB difference). The reasons for the unstable results are as follows:
•
the calibrator is not properly attached to the instrument
•
there are external acoustic disturbances such as high noise levels close by
•
the calibrator or the measurement channel (for example the microphone) is damaged.
Note: During the calibration measurement, the external disturbances (acoustic noise or vibrations)
should not exceed a value of 100 dB (when using a calibrator that generates a level of 114 dB).
8. Press to accept the measurement result.
Figure 4-11 Calibration confirmation screen
Note: If a calibration factor does not meet tolerance criteria
±
2 dB, you still can manually accept
the microphone, but the results could possibly be affected - see Figure 4-12 .
Figure 4-12 Calibration - microphone not in tolerance screen
9. Post calibration. If enabled remotely, the post processing is performed automatically under acceptance
of the calibration measurement. SV 104BIS automatically adds the results to the previously saved
files.
Before saving the calibration factor, the text “
Post Calibration
” appears.
new
calibration factor
previous