5.3.1.7 Fault Code 10 –Sensor appears to be disconnected
The “Sensor appears to be disconnected” fault indicates that there is not a continuous electrical circuit
connecting the Model 1100 and the oxygen sensor. Possible causes may be: An open in the sensor
interface wiring, faulty connecting hardware on/in the Model 7100E or the sensor, the sensor interface
cable has been un-plugged.
5.3.1.8 Fault Code 11 – Non-native display range
The “non-native display range” fault indicates oxygen reading that is above the range configuration
entered in the Model 7100E 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.
5.3.1.9 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.
5.3.1.10 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.
5.3.1.11 Fault Code 15 – Bad user calibration
The “bad user calibration” fault indicates that the user has attempted to calibrate the Model 7100E 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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