KYORITSU 2009R - Manual (Page 26)

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７．Other Functions
７－１ Auto-power-off Function
 CAUTION
● The instrument consumes small amount of battery power in the
Auto-power-off mode. Make sure to set the function selector
switch to the OFF position after use.
This is a function to prevent the instrument from being left powered
on in order to conserve battery life. This function causes the
instrument to enter the Auto-power-off mode about 10 minutes
after the last switch or button operation.
To exit the Auto-power-off mode, turn the function selector switch
back to "OFF", then to any other position, or press any button.
NOTE
● Connecting the plug to the OUTPUT terminal disables the Auto-
power-off function. The function is enabled on removing the plug
from the terminal.
● The Auto-power-off function is disabled in the PEAK
measurement mode.
７－２ Data Hold Function
This is a function used to freeze the measured value on the
display.
Press the Data Hold button to freeze the reading. The reading will
be held regardless of subsequent variation in input. " " is shown
on the upper right corner of the display while the instrument is in
the Data Hold mode.
To exit the Data Hold mode, press the Data Hold button again.