8-4 Control Panel - Calibrate Model 831 Manual
Calibrate Tab
The Calibrate tab is used when performing an acoustic
calibration, including the selection of the sound level
calibrator to be used and the implementation of the
calibration procedure.
History Tab
The History tab lists the results, along with the date and
time, of the ten most recent calibrations performed using the
same type of preamplifier as presently connected to the
Model 831, whose name appears at the top of the tab
(PRM831 in this example). The preamplifier type is read
automatically when the instrument is booted up, or
following a change in preamplifier. The value of sensitivity
in dB re. 1 V/Pa and the variation of the sensitivity
determined from that calibration relative to the calibration
prior to that,
dB, are presented for each calibration.
Sensitivity Tab
When performing an acoustic calibration, the Sensitivity tab
is used to select the microphone being used.
Certification Tab
The Certification tab shows the date of the last certification
and the due date for the next certification. Information about
the calibration facility. Typically Larson Davis, Inc. is
displayed in the middle of the tab. The user can enter their
own certification interval and certification reminder from
this tab.
Exiting from the Calibration Function
Press the Close Softkey to exit from any of the Calibrate
tabs to the Control Panel.
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