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4-21
IM 701210-05E
Common Operations
4
4.6
Performing Calibration
Calibrate the DL750/DL750P when observing voltages.
Procedure
MEASURE CURSOR
RESET
SELECT
CH
ALL CH
MODE
POSITION
SIMPLE/ENHANCED
ACQ
START/STOP
SETUP
DISPLAY
ZOOM
DUAL
CAPTURE
HISTORY
MATH
1
CH
2
CH
3
CH
4
CH
5
CH
6
CH
7
CH
8
CH
9
CH
10
CH
11
CH
12
CH
13
CH
14
CH
15
CH
16
DELAY
MANUAL TRIG
V/DIV
TIME/DIV
TRIGGER
TRIG D
VERTICAL
HORIZONTAL
CAL
X-Y
SEARCH
7
DSP 1
8
9
DSP 2
6
5
4
1
0
2
3
ENTER
m
DSP 6
DSP 5
LOGIC A
LOGIC B
EVENT
DSP 3
DSP 4
EXP
GO/NO-GO
ACTION
FILE
SHIFT
Executing Calibration
1.
Press
SHIFT+SETUP
.
2.
Press the
Calibration
soft key to execute calibration.
Perform Auto Calibration
3.
Press the
AutoCal
soft key to select ON.
Explanation
Calibration
The following parameters are calibrated. Perform calibration when you wish to measure
waveforms with high accuracy.
• Ground level offset
• A/D converter gain
Precautions to Be Taken When Perform Calibration
• 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
±
5
°
C).
Note
The calibration described above is performed automatically when power is turned ON or
when the Cal Exec soft key in the Calibration menu is pressed.
Auto Calibration
If AutoCal is set to ON, auto calibration is performed the first time the time axis setting
(T/div) is changed or the first time measurement is started after the time shown below
passes.
After turning ON the power
• 3 minutes pass
• 10 minutes pass
• every 30 minutes from here on after