Dynalco AF-900PC Air/Fuel Ratio Controller - Manual (Page 25)

24
OXYGEN SENSOR HEALTH SCREEN
The O
2
Health Screen (Fig. 9) shows parameters related to sensor health
measurement.
Descriptions of the parameters are as follows:
EU: Displays the current voltage input from each O
2
sensor.
ADC: Displays the A/D converter counts from the last sensor input measurement.
Test: Displays the A/D converter counts from the last sensor test measurement.
Raw: Displays the last calculated sensor health for each sensor.
Health: Displays the filtered sensor health for each sensor.
Filter: Programmable parameter sets the filter time constant for the sensor health.
With the maximum value of 1.0, there is no filtering and each sensor test becomes
the new Health value. With the default filter value of 0.01, each new sensor reading
becomes 1/100
th
of the Health value. In other words, a smaller filter value means
more filtering.
Time (sec): Determines time interval (in seconds) at which sensor health test will
be performed. Sensor Health test is performed every 60 seconds with the default
value of 60.
Oxygen Sensor Health Screen
Figure 9