Troubleshooting
59
Error code
The converter has a function for displaying various error codes.
A blinking error code is displayed on the auxiliary display.
More than two types of errors cannot be displayed. If multiple errors occur, higher priority
errors are displayed in the order in which they occur frequently.
Q
Description of error codes
Tip
If an error code is displayed, the HOLD display blinks, and transmission output becomes an output
value set in the Setup menu.
Error code
Contents of error codes
Remedial action
E-41
(Zero calibration error)
Decrease in the amount of
transmitted light
Clean the censor head, and try zero calibration with clean
water. If E-41 occurs at normal zero calibration, Contact us.
E-80
(sensor connection error)
The detector and the converter
are unconnected.
Check the connecting wires of the detector and the converter.
The connections of the detector are always monitored. If they
are connected under normal conditions, an error disappears.
Refer to “ Connecting the detector cable ” (page 19).
E-81
(sensor memory error)
(loss of the contents of memory
inside the detector)
Turn OFF the power source once, and turn it ON again. If the
system error does not disappear even if restarted, contact us.
E-82
(sensor ADC error)
Malfunction of the A/D converter
in the detector
Contact us.
E-85
(cleaner connection error)
The cleaner is unconnected.
Check the connecting wires of the sensor and the cleaner, and
change them to the normal connecting wires.
E-90
System error
Converter internal
communication abnormality
Turn OFF the power source once, and turn it ON again. If the
system error does not disappear even if restarted, contact us.
E-91
System error
The contents of the memory,
such as set values and
calibration values are lost.
Turn OFF the power source once, and turn it ON again. If the
system error does not disappear even if restarted, contact us.
E-92
System error
A/D converter malfunction
Turn OFF the power source once, and turn it ON again. If the
system error does not disappear even if restarted, contact us.
