Sensor Integration and Calibration
50 Hydro-Probe XT User Guide HD0538 Rev: 1.6.0
Poor Moisture Calibration Data
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Poor Moisture Calibration Data
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2.5.1
Calibration inaccuracy is likely to result if:
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Too small a sample of material is used for measuring the moisture content.
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A very small number of calibration points are used (in particular 1 or 2 points).
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The sub-sample tested is not representative of the bulk sample.
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Samples are taken close to the same moisture content, like the calibration graph
shown below (left). A good range is necessary.
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There is a large scatter in the readings as shown in the calibration graph below
(right). This generally implies an unreliable or inconsistent approach to taking
samples for oven drying or poor sensor positioning with inadequate material flow
over the sensor.
•
If the averaging facility is not used to ensure representative moisture reading for
the entire batch.
Figure 38: Examples of poor material calibration points
Summary of Contents for Hydro-Probe XT
Page 4: ...4 Hydro Probe XT User Guide HD0538 Rev 1 6 0 ...
Page 6: ...6 Hydro Probe XT User Guide HD0538 Rev 1 6 0 ...
Page 8: ...8 Hydro Probe XT User Guide HD0538 Rev 1 6 0 ...
Page 10: ...10 Hydro Probe XT User Guide HD0538 Rev 1 6 0 ...
Page 14: ...Chapter 1 Introduction 14 Hydro Probe XT User Guide HD0538 Rev 1 6 0 ...
Page 42: ...Chapter 4 Configuration 42 Hydro Probe XT User Guide HD0538 Rev 1 6 0 ...
Page 58: ...Chapter 7 Sensor diagnostics 58 Hydro Probe XT User Guide HD0538 Rev 1 6 0 ...
Page 60: ...Chapter 8 Technical specification 60 Hydro Probe XT User Guide HD0538 Rev 1 6 0 ...
Page 66: ...Appendix B Document Cross Reference 66 Hydro Probe XT User Guide HD0538 Rev 1 6 0 ...
