7
BACKLIGHT
Once the instrument is powered on, pressing the power/backlight key
will turn on the display backlight. The backlight will remain on until
the key is pressed again or after two minutes of not pressing any key
on the keypad.
POWERING OFF
To turn the instrument off, press and hold the power/backlight key
for three seconds.
NAVIGATION
The up and down arrow keys allow you to navigate through the
functions of the Pro20/Pro20i.
Navigating the Run Screen
When in the Run screen, the up and down arrow keys will move the
highlighted box along the bottom options. Once a box is highlighted,
press enter
to access the highlighted option.
Description of Run screen box functions from left to right:
Option Description
Barometer Highlight and press enter to calibrate the
instrument’s internal barometer.
Salinity
compensation
value
Highlight and press enter to adjust the salinity
compensation value that is used for the
dissolved oxygen mg/L measurement.
SAVE
Highlight and press enter to save displayed
data to memory.
DATA
Highlight and press enter to view and/or erase
saved data.
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