YSI ProDSS Meter Calibration and Maintenance
K:\Streamkeepers\Monitoring\Eqpt & supplies\Calibration-Maintenance\SOPs\YSI ProDSS maint-
cal SOP's
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Updating the ODO Sensor Cap Coefficients:
1.
Select the
probe button
, then Setup, then ODO, then Sensor Cap Coefficients
2.
Using the coefficient values from the instruction sheet, enter the coefficient # into the proper
coefficient slot in the handheld. After all the coefficients have been entered, select Update
Sensor Cap Coefficient.
3.
Hit Yes on the prompt screen to override the old coefficient #s.
•
After updating the Coefficients, the Serial # in the Sensor Cap menu will be updated
automatically based on your entries. If errors are made in entering the Sensor Cap
Coefficients, the instrument will block the update and an error message will appear on the
display.
•
If you see this error message, re-enter the coefficients and check them carefully for correct
transcription from the Calibration Code Label prior to selecting Update Sensor Cap
Coefficients.
•
If you receive an error message after several entry attempts, contact YSI Technical Support
for assistance (1-800-765-4974).
•
Calibrate the sensor after cap replacement and coefficient update; refer to the DO
Calibration section above.
•
IF THE CAP EVER GETS DRIED OUT (left dry for longer than 8 hours), rehydrate the
cap by soaking it in room temperature tap water for 24 hours. After the soak, recalibration
the sensor.
Installing a Port Plug
1.
Apply a thin coat of Krytox o-ring lubricant to the o-rings on the plug port.
2.
Remove any excess lubricant from the o-rings and port plug with a lint-free cloth.
3.
Insert the port plug into the empty port and press until firmly seated.
4.
Finger-tighten the port plug clockwise to install. If necessary, use the sensor installation tool
to make sure that the plug is fully seated into the port.
NOTICE:
The o-rings will not be visible if a port plug is correctly installed. Do not over-
tighten the port plug. Over-tightening can cause damage
