10
Water Action Volunteers – Level 2 Manual
Updated January 2016
8. Press and release both the UP ARROW and DOWN ARROW keys
at the same time to enter the calibration menu.
The meter will say CAL on the screen in large letters and
CAL in small letters in the lower left corner. This will stay
on the screen until the calibration process is done.
9. Press ENTER on the meter to show a value for altitude (x100) in feet.
For example, enter a ‘9’
here indicates 900 ft and a
‘12’ indicates 1200 ft.
10. Adjust the altitude with the up and
down arrow buttons for the
elevation where the calibration is
taking place and press ENTER.
The % saturation value is now showing on the meter display.
11. Allow the % saturation value (
red
box) to stabilize on the screen
This may take a minute or two to happen
12. Press ENTER (
orange
box).
The salinity of the water samples is now
on the screen
.
13. Press ENTER again to accept 0 (the salinity of fresh water).
The calibrated % saturation value is now on the screen
(
red
box) and the small CAL is no longer visible in the
lower left corner.
14. Press the MODE key (
orange
box) to switch to mg/L. (This key is
used to toggle between mg/L and % saturation.)
