Teac VR-24, Руководство пользователя

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7. Recording
7-5. Calibration
Set the value used to convert sensor output to physical
quantities.
7-5-1. Equivalent input calibration
Set the rated output and rated capacity indicated in
the sensor test results table (“Unit substitution” on page
48).
7-5-2. Actual load calibration
Calibrate by applying an actual load to the sensor.
o
For details about how to use the calibrator used for
calibration, refer to the operation manual that came
with it.
Actual load calibration procedures
1
Connect the sensor to the calibrator.
To calibrate a microphone, connect it to a pistonphone.
To calibrate an accelerometer, connect it to an exciter.
2
Press the MENU/HOME button on the top
panel, and then touch the “SYSTEM”
w
“Analog”
w
“Channel settings” buttons in
order.
3
Set the sensor for actual load calibration, and
touch the “Actual load cal.” button.
4
Select the actual load value applied to the sen-
sor by the calibrator.
Calibrator
Pistonphone: Select when calibrating a microphone.
Exciter: Select when calibrating an accelerometer.
Calibration mode
RMS: Calibration is conducted with an RMS value
(effective value).
Peak: Calibration is conducted with a peak value.
Level
When the calibrator is a pistonphone
74 dB, 94 dB, 114 dB
When the calibrator is an exciter
4.9 m/s
2
, 9.8 m/s
2
, 10.0 m/s
2
5
After the actual load is applied to the sensor by
the calibrator, touch the “Start” button to start
measurement.
6
When the measured value shown in the
“Measured value” field becomes stable, touch
the “Stop” button.
Continued on the next page
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