4.3.1.7 Fault Code 11 – Non-native display range
The “non-native display range” fault indicates an oxygen reading that is above the range
configuration entered in the model 1100 setup (section 4.1.2.12). Fault code-11 is active when
fault code 5 is active. Possible causes of fault code-11 may be: Incorrect or contaminated
calibration gases, faulty process or calibration sampling lines/components.
4.3.1.8 Fault Code 12 – User calibration too large
The “user calibration too large” fault indicates that the reading during calibration was out of
tolerance high with respect to the known calibration gas concentration. The calibration tolerance
window is factory-set and cannot be changed by the user. Possible causes of fault code-12 may
be: Incorrect or contaminated calibration gases, faulty process or calibration sampling
lines/components.
4.3.1.9 Fault Code 13 – User calibration too small
The “user calibration too small” fault indicates that the reading during calibration was out of
tolerance low with respect to the known calibration gas concentration. The calibration tolerance
window is factory-set and cannot be changed by the user. Possible causes of fault code-13 may
be: Incorrect or contaminated calibration gases, faulty process or calibration sampling
lines/components, faulty or failing sensor.
4.3.1.10 Fault Code 15 – Bad user calibration
The “bad user calibration” fault indicates that the user has attempted to calibrate the model 1100
with what appears to be a faulty sensor. Possible causes of fault code 15 are: Incorrect or
contaminated calibration gases, improper calibration procedure, faulty sensor.
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