YOKOGAWA WT500 User Manual page 68

To Make Accurate Measurements
Operations Performed When the Power Is Turned Off
IM 760201-01E
• Allow the instrument to warm up for at least 30 minutes after turning on the power
switch.
• Perform zero-level compensation after you have allowed the instrument to warm up (see
section 12.3, "Performing Zero- Level Compensation").
After the power switch is turned off, the instrument stores the setup parameters in its
memory before shutting down. The same operation is performed when the power cord is
removed. The next time the power switch is turned on, the instrument powers up using
the stored setup parameters.
Note
A lithium battery is used to retain the setup parameters. When the lithium battery voltage falls
below a certain level and you turn the power switch on, the instrument displays a message
on the screen (see section 13.2 for details). If this message appears frequently, the battery
should be replaced quickly. Do not try to replace the battery yourself. Contact your nearest
YOKOGAWA dealer to have the battery replaced. For information about the battery life, see
section 13.5.
3.4 Turning the Power Switch On and Off
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App
Index
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