Datcon DT4120 Series Operating Instructions Manual page 22

Error messages
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Messages of critical
errors
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A/D underflow (Error: AD Underflow)
Reason of error: input signal is under of the measuring
range.
A/D overflow (Error: A/D Overflow)
Reason of error: input signal is over of the measuring range.
Display under (Underflow)
Reason of error: value to be displayed is < -9999.
Display overflow (Overflow)
Reason of error: value to be displayed is > 99999.
Missing Minimum-maximum values
(Error: Missing Minimum-Maximum)
Saving the last settings was not successful (Error: Save)
Scaleing error (Scale)
Reason of error: the given physical value is not correct.
In case of a critical error call manufacturer sertvice
department!
A/D converter error (Service: ADC)
EEPROM error (Service: EEPROM)
Calibration error (Service: Calibration)
Factory calibration is damaged.
Analogue output calibration error (Service: Analog
Calibration)
Factory calibration is damaged.
Factory settings (Service: Factory Settings)
Data stored in EEPROM are damaged (factory calibration
also).
DT4120 xx xx (PS)
20170324-V0