650 MDS
Section 3
YSI, Incorporated Drinking Water Monitoring Systems Operations Manual
3-24
Use the arrow keys to highlight the
Dissolved Oxygen
selection and press
Enter
. Then, Use the arrow
keys to highlight the
DO%
selection and press
Enter
.
Use the 650 numeric entry keys and the right/left arrow keys to enter the current local barometric pressure.
Then, press the
Enter
key and observe the dissolved oxygen reading until stabilization occurs. Make sure
the
Calibrate
selection is highlighted in upper window.
NOTE: The current barometric pressure as read by your 650 will automatically appear as the default value
if your 650 is equipped with a barometer.
When the dissolved oxygen reading is stable, press the
Enter
key to confirm the calibration as indicated by
the message “Calibrated” in the header. In addition, the message in the upper window will change from
