IM 12D03D02-01E
6-2
6
.
Troubleshooting
(1) Err1 Temperature compensation computation value out of
range
Possible Causes:
When the standard temperature conversion is made to conductivity at 25°C, this
instrument performs temperature compensation computation based on the preset
temperature coefficient.
Err1 is displayed in cases where temperature compensation computation is
impossible because the preset temperature coefficient is improper or a solution with a
large temperature coefficient is measured at temperatures lower or higher than 25°C.
Corrective Actions:
• Reset the temperature coefficient to the correct value.
• Measure solution at about 25°C.
(2) Err2 Out of temperature measurement range
Possible Causes:
This error occurs if the measurement liquid temperature is outside the range -10 to
120°C, or if sensor cables are disconnected.
Note:
The liquid temperature should never be outside the range 0 to 80°C.
Corrective Actions:
• Set the liquid temperature to 0 to 80°C.
• Replace the sensor. (Refer to Sec. 1.6)
(3) Err3 Calibration error
Possible Causes:
When the calibration with standard solution is made, each time cell constants are
changed. Err3 occurs if the conductivity of the standard solution is wrong, or changed
cell constants are beyond ±20% of the standard cell constant, due to a damaged
sensor.
Corrective Actions:
• Use correct standard solution conductivity. (Refer to Sec. 5.4)
• Replace the sensor. (Refer to Sec. 1.6)
(4) Err6 Meter electronics failure
Possible Causes:
Err6 occurs if the meter electronics fails.
Corrective Actions:
• Contact your nearest Yokogawa sales office.
