Hach EC1000, Instruction Manual

Page: 94 / 128

94
9.1.2 Error Codes
Table 14 Error Codes
Error
Code
Display
Error
Description
Probable Cause Corrective Action
E00 EEFAIL EEPROM
failure One or more of the data cells either
fails to program or losses data.
NOTE
In the case of loss of data, internal
diagnostics automatically restore
the data. Clear the warning (see Section 2.2.8 Warnings).
Cycle power off, then on and check system
warnings. A recurring E00 warning indicates
EEPROM damage. Replace the microprocessor
circuit board. Frequent E00 indicates EEPROM
may be near failure. Replace the
microprocessor circuit board.
E01 REF TIME Reference
timer time-out Indicates the reference electrode needs
refilling. Occurs 30 days after last reset. Refill the electrolyte (see Section 8.1.4
Replacing Electrolyte) and clear the warning
(see
Section 2.2.8 Warnings).
E02 SOFT SRT Software
restart The microprocessor enters an
abnormal operating mode, and internal
diagnostics resume normal operation. Clear the warning (see Section 2.2.8 Warnings).
If E02 occurs frequently, call the service
department.
E03 COLD SRT Cold start Requested from the diagnostic menu
(
Section 9.1.1 Test Diagnostic Menu) or
new software installed. Returns all
settings and calibrations to factory
defaults.
Clear the warning (see Section 2.2.8 Warnings).
Re-enter the operator settings, and re-calibrate
the electrode.
E04 PROBE ER pH probe
open The electrode wiring is disconnected,
or the electrode is defective. Determine, then resolve the problem with the
electrode by referring to
Section 9.2
Troubleshooting the pH Electrode. The warning
will self clear when the problem is resolved
E05 PROBE ER pH probe
shorted The electrode wiring is shorted, or the
electrode is defective. Determine, then resolve the problem with the
electrode by referring to
Section 9.2
Troubleshooting the pH Electrode. The warning
will self clear when the problem is resolved
E06 PROBE ER Temperature
probe open The electrode wiring is disconnected,
or the electrode is defective. Determine, then resolve the problem with the
electrode by referring to
Section 9.2
Troubleshooting the pH Electrode. The warning
will self clear when the problem is resolved
E07 PROBE ER Temperature
probe
shorted The electrode wiring is shorted, or the
electrode is defective. Determine, then resolve the problem with the
electrode by referring to
Section 9.2
Troubleshooting the pH Electrode. The warning
will self clear when the problem is resolved
E08 MARG CAL Marginal pH
offset Calibration is outside the normal range.
During a calibration, a marginal pH
offset warning is set if the required
offset is greater than
±
100 mV.
Recalibrate the instrument or clean or replace
the electrode. The warning will self clear when
the problem is resolved, or it may be cleared
manually (see
Section 2.2.8 Warnings).
E09 MARG CAL Marginal pH
gain During a calibration, a marginal pH gain
warning is set if the required slope is
outside the range of 50.6 to 71.2 mV. Recalibrate the instrument or clean or replace
the electrode. The warning will self clear when
the problem is resolved, or it may be cleared
manually (see
Section 2.2.8 Warnings).
E10 MARG CAL Marginal
temperature
offset During a calibration, a marginal
temperature offset warning is set if the
required offset is greater than
±
20
°
C.
Recalibrate the instrument or clean or replace
the electrode. The warning will self clear when
the problem is resolved, or it may be cleared
manually (see
Section 2.2.8 Warnings).
E11 MARG CAL Marginal
temperature
gain During a calibration, a marginal
temperature gain warning is set if the
required offset is greater than
±
20
°
C.
Recalibrate the instrument or clean or replace
the electrode. The warning will self clear when
the problem is resolved, or it may be cleared
manually (see
Section 2.2.8 Warnings).
E12 PWR FAIL Power failure The power to the instrument has been
shut off since the last time this warning
was reset. Clear the warning (see Section 2.2.8 Warnings).