3-6
 
IM CA71-E
■ Turning On/Off the Power
 CAUTION
To verify the instrument's functionality, check that the measured value is  
updated after turning on the power. If the measured value is not updated,  
the reading will be incorrect and may lead to possible electrical shock or  
personal injury.
Turning On/Off the POWER Switch
Pressing the 
 key once when the power is off turns on the calibrator. 
Pressing the 
 key once again turns off the calibrator.
 NOTE
• Before disconnecting the AC adapter from an AC power source,  
turn off the calibrator by pressing the 
 key.
• When operating the calibrator on batteries, disconnect the AC adapter  
plug from the instrument.  Once you connect the AC adapter plug to  
the instrument, the instrument no longer operates on batteries.  
Thus, the instrument will not turn on unless the AC adapter is connected  
to an AC power source.
• Be sure to turn off the POWER switch when you nish using the instrument.
3. Before Starting Source/Measurement