SV 104A USER'S MANUAL_______________________________________________________
34
Press
<SCROLL>
key to cancel the setup loading, or
<PROFILE>
key to confirm loading
selected setup configuration.
Confirming the loading of configuration setup leads to the screen with status of the loading procedure:
Figure 4-7
Status of setup loading
After successfully setup loading it is possible to return back to list of predefined setups by pressing the
<SCROLL>
key, or go further to measurement screen by pressing the
<PROFILE>
key.
Note: Detailed description of uploading setup files onto the SV 104A can be found in chapter
6.5.1 of this manual.
4.7
CALIBRATION
The
SV 104A
dosimeter is offered with the dedicated
ST 104A
MEMS microphone with ½” housing.
It makes the calibration very easy by direct usage of commonly available acoustic calibrators
with a ½” cavity.
The instrument is factory calibrated with the supplied microphone for the standard environmental conditions.
Because the microphone sensitivity is a function of the temperature, ambient pressure and humidity, the
absolute calibration of the measurement channel should be performed locally. The instrument performs the
acoustic calibration automatically, when the calibrator is placed over the microphone (first remove the
windshield). The calibrator level is automatically detected and the calibration procedure is started.
The user simply has to press
<ENTER>
key to confirm the calibration results. Calibration is only
allowed in the stopped mode. A sound measurement cannot be in progress while the calibration is being
performed.
Note: It is advised to perform an acoustic calibration of the instrument each time before and
after the measurement run. A single calibration at the start of each day of use is usually sufficient for most
regulations.
Note: The calibration factor is always added to the results in the Dosimeter or 1/1 Octave or
1/3 Octave analyses modes.
Note:
The manufacturer’s recommended factory calibration interval is every 12 months for
this instrument to be confident in its continuing accuracy and compliance with the international specifications.
Please contact your local SVANTEK distributor for further details.
To calibrate the instrument manually the user has to enter the Calibration menu.
