FE ZAJ, Service Manual

Page: 17 / 28

TN512955-E
11
6-1. Error code and countermeasures
Error code Error message Cause Check and measures
Err1 AUTO ZERO CAL ERR
Err2 AUTO SPAN CAL ERR
Calibration
value is more
than 20% FS
different from
previous value.
･
Confirm the set zero or span calibration
value.
･
Confirm the gas concentration in gas
cylinder.
･
Confirm the range.
Err3 INPUT OVER ERR
Err4 INPUT UNDER ERR
Sensor input
value is
abnormal.
･
Check if gas outside effective range is
flowing.
Err5 OUTPUT DEVICE ERR Output printed
circuit board is
abnormal.
･
Check if the connector of output printed
circuit board is unplugged.
･
Replace the output printed circuit board.
･
Contact the nearest Fuji representative.

Errl Auto zero calibration error (AUTO ZERO CAL ERR)
This code is displayed if zero calibration values as measured in the automatic calibration fluctuate
20% larger than previous calibration value.
If an error occurs, the instrument will be stopped without calibration.
Countermeasures
Perform zero point calibration manually.
If an error does not occur with manual zero calibration, there is nothing wrong with the instrument.
Check the settings for gas flowing time in the automatic calibration and the sampling system that is
different between manual calibration and automatic calibration. If the MANUAL ZERO CAL ERR
code appears in the manual calibration, check calibration gas, range settings, and calibration
concentration settings.
Caution) If the range settings have changed, an error may be displayed in an initial calibration.
But, this is not an error. Perform zero-point calibration forcedly in the manual zero
calibration.

Err2 Auto span calibration error (AUTO SPAN CAL ERR)
This code is displayed if span calibration value as measured in the automatic calibration fluctuates
20% larger than previous calibration value.
If an error occurs, the instrument will be stopped without calibration.
Countermeasures
Perform span point calibration manually.
If a span calibration error does not occur with manual span calibration, there is nothing wrong with the
instrument. Check the settings for gas flow time in the span calibration and sampling system that is
different between manual calibration and automatic calibration. If the MANUAL SPAN CAL ERR
code is displayed in the manual calibration, check if calibration gas, range settings, and calibration
concentration settings are proper.
Caution) If the range setting has changed or when a gas cylinder for span calibration that is
widely different from previous concentration value has been replaced, an error may
occur in an initial calibration, but it there is nothing wrong with the instrument.
Perform span-point calibration forcedly in the manual span calibration.
6. Countermeasures against trouble