YSI 600DW-B Sonde - Manual (Page 241)

Troubleshooting Section 6
The following troubleshooting tables can help you if you encounter problems with software,
communication protocol, or sensor malfunctions other than calibration errors.
6.2 SONDE COMMUNICATION PROBLEMS
SYMPTOM POSSIBLE
CAUSE ACTION REF
Sonde not powered Check 12 vdc source 7.2
Cable connection is loose Check both ends of cable; secure
connectors
Damaged connectors Check pins at both ends, insure
they are straight, dry and clean.
Cannot communicate
with sonde
Com port not selected Change to other com port, other
peripheral on the same port
(Internal mouse). Try other PC,
650 display/logger or dumb
terminal 2.4.3
Unmatched baud rate between
host and sonde Match the baud rate 2.4.3
Host is too slow Use faster computer
Interface cable failure Check cable for damage. If
necessary, return for service 7
Internal failure Return sonde for service 7
Scrambled data
YSI Incorporated Drinking Water Monitoring Systems Operations Manual 6- 2