7
Controls and Features
(11) LIGHT key
Serves to control the display backlight. Each push of the key toggles between
on and off. The backlight brightness can be set from the [System] menu.
(12) SCALE ON/OFF key
In time waveform mode and FFT mode, this key serves to switch the
display scaling function (see page 51 and 69) on and off.
To zoom the display in graph mode, press this key to enable scaling, and
then use the / / / keys.
(13) SCALE EXPAND/MOVE key
When display scaling is enabled, this key serves to switch between zoom
(expand/shrink) mode and move mode.
(14) POWER key
Serves to turn the unit on and off.
(15) ENT key
This key serves to con rm a menu selection and is also used for other
functions such as saving the recall screen as a BMP le. Hold down the
key for about 1 second.
(16) LINE key
In time waveform mode and FFT mode, this key serves to change the
number of analysis lines.
(17) RANGE / keys
These keys serve to select the input range for measurement.
(18) LED indicator
Shows operation and status information for the unit, using the colors
red, blue, green, and yellow, as well as blinking.
(19) INST/AVE key
In FFT mode, this key serves to switch between the instantaneous value
display and the operation type selected from a menu (linear average,
exponential average, maximum hold).
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