Svantek SV 973, User Manual

Page: 29 / 212

SVAN 973 User Manual
29
3.2.2 History of calibrations
– Calibration History
The Cal. History screen displays list of calibration
records which you can view by pressing the <Enter> key.
<ENT>
Note: After calibration, the instrument makes two calibration records with the same date
– one
for the Level Meter and one for the Dosimeter.
The calibration record includes information about the
measurement function for which calibration was
performed (
Level Meter or Dosimeter ), type of calibration
( Factory Calibration , By Sensitivity or By Measurement ),
date of calibration and calibration factor.
▼
Note: Every time you return to the factory settings without keeping the last calibration (see
Chapter
8.2 ), the new record appears in the list stating the Factory calibration of the instrument.
3.2.3 Erasing calibration records
– Clear History
To erase all calibration records in the history, choose the
position
Clear Hist. and press <Enter> .
The instrument requests confirmation of the selected
operation.
<ENT>
3.2.4 Post measurement calibration
– Post Calibration
Some regulations require to add information about
calibration performed after measurements to the files with
measurement results created before such calibration.
The latest calibration factor is for information purpose
only since it was not considered during the measurement.
The Post Cal. screen allows three options: not to save
( Off ), save in the last created file ( Last File ) or save in
the files which were created after the previous calibration
(
After Cal. ).
<ENT>
3.2.5 Automatic calibration
– Auto Calibration
The Auto Cal. position enables the user to perform
automatic calibration when the sound calibrator is
attached.
In this case, the “Calibration by measurement”
screen will appear automatically. If Auto Cal. is switched
off, the user should enter this screen through the Menu .
<ENT>
Automatic calibration feature was implemented to make calibration as easy as possible and allow the
user to perform calibration of SV 973 with minimum steps.