Making Preparations for Measurements
2.3 Connecting the Power Supply and Turning the Power Switch On and Off
2-7
IM DLM4038-03EN
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App
Index
Turning the Instrument On
Before Turning On the Power, Check That:
• The instrument is installed properly → Section 2.2, “Installing the Instrument”
• The power cord is connected properly → Previous page
Turning On the Main Power Switch
1.
Flip the power switch on the right side panel to the ON ( | ) position.
The front-panel power switch illuminates in red-orange.
Turning On the Power Switch
2.
Press the power switch on the front panel.
The power switch color will change from red-orange to green.
Note
If you turn off the main power switch while the front-panel power switch is turned on (while the power switch
is illuminated in green), you can start the instrument the next time by simply turning on the main power
switch. However, if you turn off the main power switch while the front-panel power switch is turned on, the
setup data immediately before the power switch is turned off will not be stored properly.
Operations Performed When the Power Is Turned On
When the power switch is turned on, a self-test and calibration start automatically. When the DLM4000
starts normally, the waveform display screen appears. Check that the DLM4000 has started normally
before you use it.
If the DLM4000 Does Not Start Normally When the Power Is Turned On
Turn off the power switch, and check the following items.
• Check that the power cord is securely connected.
• Check that the correct voltage is coming to the power outlet. → Page 2-6
• Initialize the settings to their factory defaults by turning on the power switch while holding down
the RESET key.
If the instrument still does not work properly, contact your nearest YOKOGAWA dealer for repairs.
Note
• After turning the power switch off, wait at least 10 seconds before you turn it on again.
• It takes approximately 10 seconds for the startup screen to appear.