YSI 600LS - User Manual - Manual (Page 286)

Troubleshooting Section 6
YSI Incorporated Environmental Monitoring Systems Operations Manual 6- 4
Water in probe connector Dry connector; reinstall probe 2.3.2
Probe has been damaged Replace probe 9
Calibration solutions out of spec or
contaminated with other solution Use new calibration solutions C
ORP fails Zobell check Take into account temperature
dependence of Zobell solution
readings 5.4
Internal failure Return sonde for service 9
Depth unstable or
inaccurate
Depth sensor has not been zeroed Follow depth zero procedure 2.6.1
Depth sensor access hole is
obstructed Follow depth cleaning procedure 2.10.2
Depth sensor has been damaged Return sonde for service 9
Internal failure Return sonde for service 9
Conductivity unstable
or inaccurate. Error
messages appear during
calibration. Conductivity improperly
calibrated.
Follow cal procedure 2.6.1
Conductivity probe requires
cleaning Follow cleaning procedure 2.10.2
Conductivity probe damaged Replace probe 9
Calibration solution out of spec or
contaminated Use new calibration solution C
Internal failure Return sonde for service 8
Calibration solution or sample
does not cover entire sensor. Immerse sensor fully. 2.6.1
Installed probe has no
reading The sensor has been disabled Enable sensor 2.9.7
Water in probe connector Dry connector; reinstall probe 2.3.2
Probe has been damaged Replace the 6560 probe 9
Report output improperly set up Set up report output 2.9.6
Internal failure Return sonde for service. 9
Temperature, unstable
or inaccurate Water in connector Dry connector; reinstall probe 2.3.2
Probe has been damaged Replace the 6560 probe 9
Optical probe (turbidity,
chlorophyll, rhodamine
WT, BGA-PC, or BGA-
PE) unstable or
inaccurate. Error
messages appear during
calibration Probe requires cleaning. Follow probe cleaning procedure 2.10.2
Probe requires calibration Follow cal procedures 2.6.1
Probe has been damaged Replace probe 9
Water in probe connector Dry connector; reinstall probe 2.3.2
Calibration solutions out of spec Use new calibration solutions C
Wiper is not turning or is not
synchronized. Activate wiper. Assure rotation.
Make sure setscrew is tight. 2.10.2
Wiper is fouled or damaged. Clean or replace wiper. 2.10.2
Internal failure. Return probe for service. 9