3-8
IM DLM6054-01EN
Power Up Operation
A self-test and calibration start automatically when the power switch is turned on. That lasts
approximately 30 seconds. If the check results are satisfactory, the normal waveform display screen
will appear.
Note
• Allow at least 10 seconds before turning on the power switch after turning it off.
• If self-test and calibration do not start when the power is turned on, or if the normal waveform display
screen does not appear, turn off the power switch and check the following points.
• That the power cord is plugged in properly.
• That the correct voltage is coming to the power outlet (see page 3-5).
• The settings are initialized (they are returned to factory default settings) by turning on the power switch
while holding down the RESET key. For details on the initialization of the settings, see section 4.4,
“Returning to the Default Settings.”
If the instrument still fails to power up when the power switch is turned on after checking these points,
contact your dealer.
• It takes several seconds for the startup screen to appear.
For Taking Accurate Measurements
• To ensure accurate measurements, allow the instrument to warm up for at least 30 minutes after
turning on the power switch.
• After warm-up is complete, perform calibration (see section 4.
8). If Auto Calibration is on, it will be
executed automatically when Time/div is changed and signal acquisition is started.
Power Down Operation
The settings just prior to turning off the power (or when the power cord is unplugged) are stored.
Therefore, the next time the power is turned on, waveforms are measured using those settings.
Note
• A built-in lithium battery powers the memory that stores the settings. It has a life-span of approximately 5
years when kept at an ambient temperature of 23°C. When the lithium battery voltage falls below a certain
level, a message is displayed on the screen (error 900) when the power switch is turned on. Whenever
you see this message, you must have the lithium battery replaced immediately. The user cannot replace
the battery. Contact your dealer to have a new battery installed.
• If you turn off the main power switch of the rear panel when the power switch of the front panel is on, the
settings immediately before the power is turned off may not be stored correctly. An error message (error
900) may appear on the screen the next time you turn the power switch on. This is not a malfunction.
When turning the power off, turn off the power switch of the front panel, and then turn off the main power
switch of the rear panel.
3.3 Connecting the Power
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