Troubleshooting - Hach LDO User Manual

Troubleshooting

Displayed
Definition
Warning
The EEPROM was corrupted. Values have
EE SETUP ERR
been set to factory defaults.
The EEPROM was corrupted. Values have
EE RSRVD ERR
been set to factory defaults.
TEMP < 0 C The sensed temperature is below 0 °C (32 °F).
The sensed temperature is above 50°C
TEMP > 50 C
(120 °F).
Sensor cap not installed or not installed
correctly.
RED AMPL LOW
Sensor not operating properly.
Sensor cap not installed or not installed
correctly.
RED AMPL HIGH
Sensor not operating properly.
Sensor cap not installed or not installed
correctly.
BLUE AMPL LOW
Sensor not operating properly.
Sensor cap not installed or not installed
BLUE AMPL HIGH
correctly. Sensor not operating properly.
30
Table 7 Warning Codes
Resolution
Contact the Service Department.
Contact the Service Department.
Increase process temperature or discontinue use until
the process temperature is above 0 °C (32 °F).
Decrease process temperature or discontinue use until
the process temperature is below 50 °C (120 °F).
Remove and reinstall sensor cap.
Contact the Service Department.
Remove and reinstall sensor cap.
Contact the Service Department.
Remove and reinstall sensor cap.
Contact the Service Department.
Remove and reinstall sensor cap.
Contact the Service Department.