Typical Moisture Trace From A Hydronix Moisture Sensor In Flowing Material; Figure 3: Raw And Filter Include Sensor Output; Figure 4: Raw Unscaled Moisture Trace In Flowing Material; Figure 5: Graph Showing The Filtered Signal - Hydronix Hydro-Probe Configuration And Calibration Manual

Configuration
Filter Include
5.4
When set, only Unscaled values above the set point will be included in the filtered output. Set
to a low value to include all measurements. The default value is -10.
6 Typical Moisture Trace from a Hydronix Moisture Sensor in
Flowing Material
Figure 4 is a typical Raw Unscaled trace of a flowing material. The signal is erratic due to the
action of the material flowing past the sensor.

Figure 4: Raw Unscaled Moisture Trace in Flowing Material

The positive peaks and negative troughs can be clipped using the Slew Rate Filters reducing
unwanted noise. After the signal has been through the Slew Rate Filters, and if selected the DSP
filter, the signal is smoothed further using the Filtering Time (Smoothing Time). The result is a
much clearer representation of the moisture in the material (Figure 5).
Time (s)

Figure 3: Raw and Filter Include Sensor Output

Raw Unscaled
Time (S)
Applying filters: Slew Rate + =light, Slew Rate - = light
Filtering time = 2.5 seconds
Time (s)

Figure 5: Graph showing the Filtered Signal

Raw Unscaled
Configuration and Calibration Guide HD0679 Rev 1.2.0 21
Chapter 2
Filtered Unscaled
(1 second Smoothing)
Raw Unscaled
Filter Include set Point
Filtered
Unscaled