Sensor
The Sensor button in the main menu of an added NOX monitor opens the NOX Sensor view.

In this view, status information from the NOX sensor of the connected CAN bus/NOX sensor module is displayed. The type of NOX sensor (P/N 56.03.003 or P/N 56.03.002) is retrieved when the view is called up and is displayed in the name of the view. If one of the entries shows the value A, the value is outside of the specified range.
The following information is provided:
- NOX [ppm]
In the field to the right of the entry, the current nitrogen oxide reading is displayed. The left field below the entry displays whether the current reading is valid, there is an error, there is no connection to the NOX sensor, or the NOX sensor has not yet determined a measured value (for example, if the dew point has not yet been reached). In case of an error, an error message or an error code is displayed in the right field below the entry. - O2 [%]
In the field to the right of the entry, the current oxygen reading is displayed. The left field below the entry displays whether the current reading is valid, there is an error, there is no connection to the NOX sensor, or the NOX sensor has not yet determined a measured value (for example, if the dew point has not yet been reached). In case of an error, an error message or an error code is displayed in the right field below the entry. - Heater
In the field to the right of the entry, the current mode of the sensing element heater of the NOX sensor is displayed. The left field below the entry displays whether the sensing element is at operating temperature, there is an error, there is no connection to the NOX sensor, or the status is not available. In case of an error, an error message or an error code is displayed in the right field below the entry. - Power
Display of the current status of the supply voltage applied to the NOX sensor. - Diagnosis
Display of the current status of the NOX sensor's self-diagnosis - Software
Display of the software identification data of the NOX sensor - ECU ID
Display of the ECU identification data of the NOX sensor consisting of ECU part number, ECU serial number, and ECU voltage type - Heater Ratio
With NOX sensor P/N 56.03.002, this entry displays the current heater ratio of the resistance heater that is embedded in the sensing element of the NOX sensor. This value is not determined by NOX sensor P/N 56.03.003. - NOX Gain [%]
Display of the current NOX gain of the new part deviation - NOX Offset [ppm]
Display of the current NOX offset of the new part deviation - Operating Hours
Display of the total operating hours of the NOX sensor, counted from dew point release. Observe that the NOX sensor must be replaced when its service life has been reached. For more information on this, refer to the section Replacing the NOₓ Sensor. - O2 p Gain [%/bar] / α{λ} [bar]
The displayed entry depends on the connected NOX sensor.- NOX sensor P/N 56.03.003: O2 p Gain [%/bar]
Display of O2 correction factor
- NOX sensor P/N 56.03.002: α{λ} [bar]
Display of the pressure correction constant of the linear lambda signal
- NOX p Gain [%/bar] / α{NOX} [bar]
The displayed entry depends on the connected NOX sensor.- NOX sensor P/N 56.03.003: NOX p Gain [%/bar]
Display of NOX correction factor
- NOX sensor P/N 56.03.002: α{NOX} [bar]
Display of the pressure correction constant of the NOX signal
- NO2 Gain
Display of the factor for the corrective calculation of the NO2 sensitivity. Enter the value displayed here in the NOX Setup view as NO2 correction factor in the entry KNO2 (see section Preferences). - NH3 Gain
Display of the factor for the corrective calculation of the NH3 sensitivity
- Self-Diagnosis
Final result of the NOX sensor's self-diagnosis displayed as a ratio to the reference value defined by the manufacturer