2—3
Instrument Operation
Key Functions
Key Description Function
POWER On/Off/Backlight
To turn on the backlight, turn on the instrument, then
press and hold the power key until the backlight turns
on. Press and hold again to turn off the backlight. This
key functions the same in all instrument modes and
ranges.
ZERO/SCROLL In measurement mode, sets the instrument to zero.
In menu mode, scrolls through menu options. Also
scrolls numbers when entering or editing a value.
READ/ENTER In measurement mode, initiates sample measurement.
In menu mode, selects a menu option. When entering
numbers, moves one space to the right and executes
the function when the entry is complete.
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