4-9
4
IM 701830-01E
Common Operations
4.6
Calibration
(For High-Speed Isolation/High-Speed/High-Resolution, High-Voltage, Isolation/High-
Resolution, Isolation Modules)
Function
Calibration
The following parameters can be calibrated. Perform calibration when highly accurate
measurements are required.
Ground level offset
A/D converter gain
Points for attention
• Always allow the instrument to warm up for at least 30 minutes after the power is turned ON
before starting calibration. If calibration is performed immediately after the power is turned
ON, the calibration may be inaccurate due to drift caused by fluctuation in the temperature of
the instrument.
• Calibration must be performed when the temperature of the instrument is stable and is
between 5
°
C and 40
°
C (preferably at 23
°
C
±
2
°
C).
Note
The above calibration is performed automatically when power is turned ON or when the V/DIV knob is
turned.
Auto calibration
If “
AutoCal
” is set to “
ON
”, auto calibration is performed after the time shown below passes
and the first time the time axis setting (T/div) is changed.
After turning ON the power
• 3 minutes pass
• 10 minutes pass
• every 30 minutes from here on after
Operating Procedure
Performing calibration
1.
Press the
SHIFT+SETUP
key. The Calibration menu will appear.
2.
Press the “
Calibration
” soft key to start calibration.
Auto calibration
2.
Press the “
AutoCal
” soft key to select “
ON
.”
