34
SV 200A User Manual
4.3 C
ALIBRATION WITH THE USE OF THE CONTROL PANEL
The calibration via the control panel (manual calibration) gives the user an option to decide whether the new
calibration factor should replace the current one.
Note: Before proceeding with the manual calibration you should be sure that the Automatic
calibration is Off (see Chapter
To perform the manual calibration, follow next steps:
1. Uncover the control panel of SV 200A
by unlocking
and shifting the control panel flap.
2. Press the
and
keys simultaneously to open the Menu
window of the panel display
.
3. Press
the
key to open the
Function
position, select the
Calibration
position with the
key and press
the
key to
open it.
4. Press
the
key to open the
By Measurement
position and set
up the required calibration
Level
according to the calibration card of
your calibrator. Press
the
key to confirm the new calibration
level.
5. Attach the calibrator on the microphone and switch it on (if the used
calibrator doesn’t have switch-on automatic feature).
6. Start the calibration measurement by pressing the
key. During
the calibration measurement, the level of the calibration signal will
be displayed. If three consecutive 1-second results are stable within
±0.1dB
margin, the calibration measurement is stopped, and the
calibration factor is calculated. Otherwise the instrument will stop the
measurement and display the message “Failed!” after 10 seconds
from the calibration measurement start.
7. The successful calibration will result in calculation of the new
calibration
Factor
, which should be confirmed (
Yes
) with the
key or rejected (
No
) with the
key. After confirmation, the
calculated calibration factor will be the current calibration factor.
8. If the calculated calibration factor is out of the range
±20dB
, the
calibration will fail and the message “Failed!” will appear on the
display.
9. Detach the calibrator from the microphone.
