IM CA71-E
3-9
Before Starting Source/Measurement
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App
3. Before Starting Source/Measurement
■ Turning On/Off the Backlight
The LCD can be back-lit. Pressing the
key turns on the backlight,
while pressing the key once again turns it off.
This feature makes it easier for you to view the LCD when operating
the calibrator in dark places or when carrying out source or
measurement.
Note that battery life shortens when the calibrator is operated on
batteries.
NOTE
The backlight automatically turns off approximately one minute later.
To turn on the backlight again, press the
key once again.
■ Operating Environment
Operating Environment
Ambient Temperature and Humidity
Use the CA51/71 in the following environment:
• Ambient temperature: 0 to 50°C
• Ambient humidity: 20 to 80 % RH (no condensation)
• Location: indoors
• Operating altitude: 2000 m max. above sea level.
