3-16
IM 710105-03E
3.8 Calibrating the DLM2000
Procedure
1.
Press
UTILITY
key.
Calibration
2.
Press the
Calibration
soft key.
Executing Calibration
3.
Press the
Cal Exec
soft key to execute calibration.
Turning Auto Calibration On or Off
3.
Press the
Auto Cal
soft key to select ON or OFF.
Explanation
Calibration
Calibrates the following items. Execute calibration when you want to make accurate
measurements.
• Vertical axis ground level and gain
• Trigger threshold level
• Measured time value for repetitive sampling
Note
Calibration is performed automatically when the power switch is turned on.
Notes about Calibration
• Allow the DLM2000 to warm up for at least 30 minutes before you execute calibration.
If you execute calibration immediately after power-on, the calibrated values may drift
due to temperature changes or other environmental changes.
• Execute calibration in a stable temperature environment ranging from 5 to 40°C (23 ±
5°C recommended).
• Do not apply signals when calibrating. Calibration may not be executed properly when
input signals are being applied to the DLM2000.
Auto Calibration (Auto Cal)
Auto calibration is executed when you perform one of the following operations and any of
the time periods listed below has elapsed since the power was turned on.
3 minutes, 10 minutes, 30 minutes, 1 hour, and each following hour
• When you change time/div during waveform acquisition (when the RUN/STOP key is
illuminated)
• When you start waveform acquisition after stopping waveform acquisition (so that the
RUN/STOP key is not illuminated)
If calibration is executed while signals are being applied to the DLM2000, we recommend
that you stop signal application and recalibrate the DLM2000.
