Manual

8-2
COMMUNICATION PROBLEMS
SYMPTOM POSSIBLE CAUSE ACTION REF
Can not communicate
with sonde
Comm port not properly selected Change comm port 5.5
Cable connection is loose Check both ends of cable; secure
connectors
Sonde batteries are depleted Change batteries 7.1
Water in battery compartment Dry compartment 7.1
Internal failure Return sonde for service C
Scrambled data Unmatched baud rate between
host and sonde
Match the baud rate 2.4
4.5
Host is too slow Use faster computer or different
software
Interface cable failure Check cable for damage. If
necessary, return for service
Internal failure Return sonde for service C
Unable to upload data
from sonde to PC
Insufficient PC disk space Make space or specify different
drive
5.7
Communication problem See communication sections above
Internal failure Return sonde for service C
SENSOR PERFORMANCE PROBLEMS
SYMPTOMS POSSIBLE CAUSE ACTION REF
Oxygen unstable or
inaccurate
Probe not properly calibrated Follow DO cal procedures 3.1
Membrane not properly installed
or may be punctured
Follow 6030 setup procedure 2.2
DO probe electrodes require
cleaning
Follow DO cleaning procedure 7.2
Water in probe connector Dry connector; reinstall probe 2.2
Algae or other contaminant
clinging to DO probe
Rinse DO probe with clean water
Barometric pressure entry is
incorrect
Repeat DO cal procedure 3.1
Cal at extreme temperature Recal at (or near) sample
temperature
DO Charge too high Follow DO cleaning procedure 7.2
DO probe has been damaged Replace 6030 probe 2.2
Internal failure Return sonde for service C