Product specifications

8 TROUBLESHOOTING
83
Q AERR: AVAILABILITY error
This error occurs when effective data is short during the calculation of mean or cumulative
data.
(when the number of effective data pieces is no larger than 90% of the total number of data
pieces.)
This error does not mean any malfunction.
Q ZERO: Zero calibration
The zero calibration is unsuccessful.
The zero calibration deviates from the specified range (±3500 counts).
Q SPAN: Span calibration
The span calibration is unsuccessful.
The span calibration deviates from the specified range (0.5 to 2.0).
Q PS_1: Pressure sensor 1 error
The pump pressure sensor or sensor circuit fails.
Q PS_3: Pressure sensor 3 error
The atmospheric pressure sensor or sensor circuit fails.
Possible cause Remedial action Reference
The measured value is not
stable.
Perform the zero calibration again. page 27
Any gas other than the zero gas
has been supplied during the
zero calibration.
Supply the zero gas. ---
Possible cause Remedial action Reference
The measured value is not
stable.
Perform the span calibration again. page 28
The Span gas concentration is
wrong.
Check the span gas concentration and perform the span
calibration with gas of the proper concentration.
---
The Span gas concentration is
set improperly.
Set the span gas concentration properly. page 14
Possible cause Remedial action Reference
Sensor failure or circuit board
failure
Contact us. ---
Possible cause Remedial action Reference
Sensor failure or circuit board
failure
Contact us. ---