YOKOGAWA vigilantplant EXA ISC202G, User Manual

Page: 67 / 121

IM 12D06A03-01E
Error messages 9-1
9. ERROR MESSAGES AND EXPLANATION
Code Error description Possible cause Remedy
E2 Wrong temperature coefficient Incorrect data entry See section 5-2-3, 5-2-4, 5-2-5
E3 Calibration out of range (>factor 10) Wrong unit (mS vs μ S)
Defective sensor
Standard error
See section 6-1, 6-2
Replace sensor
Check standard
E4* Impossible program for Temperature
Compensation
Incorrect data in 5 x 5 Matrix in code
24-28
See section 5-3-3
E5* Conductivity too high Incorrect wiring
Defective sensor
Check wiring
Replace sensor
E6* Conductivity too low Sensor not submersed
Sensor plugged
Incorrect wiring
Defective sensor
Check installation
Clean sensor
Check wiring
Replace sensor
E7* Temperature too high If 30k NTC Temperature < -20° (-4°F)
If Pt 1000 Temperature > 140° (284°F)
Check wiring
Replace sensor
E8* Temperature too low If 30k NTC Temperature > 140° (284°F)
If Pt 1000 Temperature < -20° (-4°F)
Check wiring
Replace sensor
E9* Impossible AIR SET Too high ZERO Replace sensor
E10* EEPROM write failure Software problem Unplug the unit, try again
call Yokogawa Service
E15 Impossible adjustment Temperature Abnormal cable resistance Check reference see section
5-3-2
E17 Outspan span too small
Temperature compensation span
too small
Max. zero suppression is 90%
Min. temperature span is 50°C
See section 5-2-1
See section 5-2-4, 5-2-5, 5-3-3
E18 Impossible program for Output table Incorrect data in code 04 See section 5-3-3
E19 Programmed values not accepted Values exceed preset limits Try again, read instructions
E20* DATA LOST Unauthorized programming
Software problem
Call Yokogawa
E21 Corrupted Eprom Software failure Call Yokogawa
mA mA
mA mA
*These errors will trigger the FAIL if set to on (default is on.)
NOTE : E6 may occure if the sensor is not submerged in a solution, e.g., no sample is present or
the sensor is left in the air. When E6 is displayed, first check for proper sensor installation.