YOKOGAWA WE430, User Manual, Page: 69 / 73

<6. Troubleshooting>
6-8
IM 12Y18A03-01EN 1st Edition : Oct. 04, 2019-00
Displayed
Event Code
Description Cause Troubleshooting
E037 POWER RETURN System started processing after
brown out or power failure
Verify custom settings
E040 BLANK INCORRECT Blank greater than 1ppb Verify scrolled blank value is correct.
E041 CALIBRATION
TIMEOUT
The electrode has not reach stability
within the specified time
The system code may be due to out
of range measurements or an invalid
previous calibration
E042 INVALID SLOPE Invalid slope obtained during
calibration
Check electrodes, electrode cables
and connectors for defects or shorts.
Replace electrodes, if necessary.
Recalibrate using new standards in
the correct calibration sequence.
System Event/Error Codes - Yellow LED
E004 DEFAULT VALUES Analyzer has been reset or is new out
of box
Calibrate the analyzer
E021
HARDWARE FAULT System error Contact Response Center
E101 CH1 TEMP OUT OF
RANGE
Temperature sensor on channel 1 out
of range (5 °C to 45 °C) for ISE
Check ATC cable and probe
connections. Replace if needed.
E102 CH2 TEMP OUT OF
RANGE
Temperature sensor on channel 2 out
of range (5 °C to 45 °C) for ISE
Check ATC cable and probe
connections. Replace if needed.
E111 CH1 CAL DUE User calibration required on channel
1. No calibration has been performed
in user specified time interval.
Recalibrate the analyzer.
E112 CH2 CAL DUE User calibration required on channel
2. No calibration has been performed
in user specified time interval.
Recalibrate the analyzer.
E127 CH1 mA1 OVER
RANGE
Measured sensor value above mA1
high limit value on channel 1
Verify user selectable mA1 high limit
value in setup mode.
E128
CH1 mA1 UNDER
RANGE
Measured sensor value below mA1
low limit value on channel 1
Verify user selectable mA1 low limit
value in setup mode.
E129 CH1 mA2 OVER
RANGE
Measured temperature value above
mA2 high limit value on channel 1
Verify user selectable mA2 high limit
value in setup mode.
E130 CH1 mA2 UNDER
RANGE
Measured temperature value below
mA2 low limit value on channel 1
Verify user selectable mA2 low limit
value in setup mode.
E131 CH2 mA1 OVER
RANGE
Measured sensor value above mA1
high limit value on channel 2
Verify user selectable mA1 high limit
value in setup mode.
E132 CH2 mA1 UNDER
RANGE
Measured sensor value below mA1
low limit value on channel 2
Verify user selectable mA1 low limit
value in setup mode.
E133 CH2 mA2 OVER
RANGE
Measured temperature value above
mA2 high limit value on channel 2
Verify user selectable mA2 high limit
value in setup mode.
E134
CH2 mA2 UNDER
RANGE
Measured temperature value below
mA2 low limit value on channel 2
Verify user selectable mA2 low limit
value in setup mode.
System Error Codes - Red LED
E001 HARDWARE FAULT System error Contact Response Center
E002 HARDWARE FAULT System error Contact Response Center
E018 HARDWARE FAULT System error Contact Response Center
E019 HARDWARE FAULT System error Contact Response Center
E020 HARDWARE FAULT System error Contact Response Center
E024 HARDWARE FAULT System error Contact Response Center
E026 HARDWARE FAULT System error Contact Response Center
E027 HARDWARE FAULT System error Contact Response Center
E029 HARDWARE FAULT System error Contact Response Center
E030 HARDWARE FAULT System error Contact Response Center
E038 HARDWARE FAULT System error Contact Response Center
E103 CH1 MEAS OVER
RANGE
Measurement is over range on
channel 1, the display should also be
flashing ‘9999’
Check if electrode is not connected,
electrode cables are faulty or
electrode junction is fouled
E104 CH2 MEAS OVER
RANGE
Measurement is over range on
channel 2, the display should also be
flashing ‘9999’
Check if electrode is not connected,
electrode cables are faulty or
electrode junction is fouled