Error Codes - YOKOGAWA SC202G (S) User Manual

11-6 Appendix

11-7. Error codes

Code Error description
E1 Polarization detected on cell
E2 Temperature coefficient out of limits
(0-3.5%/ºC)
E3 Calibration out of limits
E4 Matrix compensation error
E5 Conductivity too high or resistivity too low
(Limits set in service code 54)
E6 Conductivity too low or resistivity too high
(Limits set in service code 54)
E7 Temperature sensor open
(Pt1000 : T > 250°C or 500°F)
(Pt100/Ni100 : T > 200°C or 400°F)
(8k55 : T < -10°C or 10°F)
(PB36 : T < -20°C or 0°F)
E8 Temperature sensor shorted
(Pt1000/Pt100/Ni100 : T < -20°C or 0°F)
(8k55/PB36 : T > 120°C or 250°F)
E9 Air set impossible
E10 EEPROM write failure
E13 USP limit exceeded
E15 Cable resistance influence to temperature
exceeds +/- 15°C
mA
E17 Output span too small
mA
E18 Table values make no sense
E19 Programmed values outside acceptable limits
E20 All programmed data lost
E21 Checksum error
IM 12D7B3-E-E
Possible cause
Sensor surface fouled
Conductivity too high
Incorrect field calibration of TC
Calibrated value differs more than
+/- 20 % of nominal value programmed
in code 03.
Wrong data entered in 5x5 matrix
Incorrect wiring
Internal leakage of sensor
Defective cable
Dry sensor
Incorrect wiring
Defective cable
Process temperature too high or too low
Wrong sensor programmed
Incorrect wiring
Process temperature too high or too low
Wrong sensor programmed
Incorrect wiring
Too high zero due to cable capacitance
Fault in electronics
Poor water quality
Cable resistance too high
Corroded contacts
Wrong sensor programmed
Incorrect configuration by user
Wrong data programmed
Incorrect configuration by user
Fault in electronics
Very severe interference
Software problem
Suggested remedy
Clean sensor
Replace sensor
Re-adjust
Set calculated TC
Check for correct sensor
Check for correct unit (µS/cm,
mS/cm, kΩ.cm or MΩ.cm)
Repeat calibration
Re-program
Check wiring (3-6)
Replace sensor
Replace cable
Immerse sensor
Check wiring (3-6)
Replace cable
Check process
Check model code sensor
Check connections and cable
Check process
Check model code sensor
Check connections and cable
Replace cable
Try again, if unsuccessful contact
Yokogawa
Check ion exchangers
Check cable
Clean and reterminate
Reprogram
Reprogram
Reprogram
Reprogram
Contact Yokogawa
Contact Yokogawa