YSI 6000UPG - Manual (Page 127)

8-4
SENSOR PERFORMANCE PROBLEMS continued...
“High DO Charge”
message during DO cal DO sensor needs reconditioned Recondition sensor. Use 6035 Kit 7.2
Tubidity probe unstable
or inaccurate. Error
messages appear during
calibration Probe requires cleaning. Follow probe cleaning procedure 7.2
Probe requires calibration Follow cal procedures 4.2
Probe has been damaged Replace probe E
Water in probe connector Dry connector; reinstall probe E
Calibration solutions out of spec Use new calibration solutions
Wiper is not turning or is not
synchronized. Activate wiper. Assure rotation.
Make sure set screw is tight. 7.4
Wiper is fouled or damaged. Clean or replace wiper. 7.4
Internal failure. Return sonde for service. C