YSI 85 - Manual (Page 38)

Troubleshooting Section 12
YSI, Incorporated Model 85 34
SYMPTOM POSSIBLE CAUSE ACTION
12. Main display reads “LErr” A. In temperature compensated
conductivity mode, temperature
exceeds the values computed using
user defined temperature coefficient
and/or reference temperature.
B. In cell constant cal mode, temperature
exceeds the values computed using
user defined temperature coefficient
and/or reference temperature.
A. & B. Adjust user defined tempco or
reference temperature. (pg. 10)
13. Main display reads “Err”
(Secondary display reads “ra”) A. System has failed its RAM test check
procedure.
A. Turn instrument OFF and back ON
again.
B. Return the system for service (pg. 26)
14. Main display reads “Err”
(Secondary display reads “ro”) A. System has failed its ROM test check
procedure.
A. Turn instrument OFF and back ON
again.
B. Return the system for service (pg. 26)
15. Secondary display reads “rEr” A. Temperature jumper is set to °F and
reading is >199.9°F but <203°F.
A. Return the system for service. (pg. 26)
16. Main display reads “FAIL”
(Secondary display reads “eep”) A. EEPROM has failed to respond in
time.
A. Return the system for service. (pg. 26)
17. Readings on main display don’t
change
A. Meter is in recall mode. A. Press MODE button to return to Normal
Operation (pg. 12)