Hydronix Hydro-Probe Use and care manual

Hydronix Moisture Sensor
Configuration and Calibration
Guide
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Revision:
Revision date:
HD0679
1.2.0
October 2015

2Configuration and Calibration Guide HD0679 Rev 1.2.0
Copyright
Neither the whole or any part of the information contained in nor the product described in this documentation may
be adapted or reproduced in any material form except with the prior written approval of Hydronix Limited,
hereinafter referred to as Hydronix.
© 2015
Hydronix Limited
7 Riverside Business Centre
Walnut Tree Close
Guildford
Surrey GU1 4UG
United Kingdom
All rights reserved
CUSTOMER RESPONSIBILITY
The customer in applying the product described in this documentation accepts that the product is a
programmable electronic system which is inherently complex and which may not be completely free of errors. In
doing so the customer therefore undertakes responsibility to ensure that the product is properly installed
commissioned operated and maintained by competent and suitably trained persons and in accordance with any
instructions or safety precautions made available or good engineering practice and to thoroughly verify the use of
the product in the particular application.
ERRORS IN DOCUMENTATION
The product described in this documentation is subject to continuous development and improvement. All
information of a technical nature and particulars of the product and its use including the information and
particulars contained in this documentation are given by Hydronix in good faith.
Hydronix welcomes comments and suggestions relating to the product and this documentation
ACKNOWLEDGEMENTS
Hydronix, Hydro-Probe, Hydro-Mix, Hydro-Skid, Hydro-View and Hydro-Control are Registered Trade Marks of
Hydronix Limited

Configuration and Calibration Guide HD0679 Rev 1.2.0 3
Hydronix Offices
UK Head Office
Address: 7 Riverside Business Centre
Walnut Tree Close
Guildford
Surrey
GU1 4UG
Tel: [phone]
Fax: [phone]
Email: [e-mail]
[e-mail]
Website: www.hydronix.com
North American Office
Covers North and South America, US territories, Spain and Portugal
Address: 692 West Conway Road
Suite 24, Harbor Springs
MI 47940
USA
Tel: [phone] (Toll Free)
[phone]
Fax: [phone] (Toll Free)
[phone]
European Office
Covers Central Europe, Russia and South Africa
Tel: [phone]
Fax: [phone]
French Office
Tel: [phone]

4Configuration and Calibration Guide HD0679 Rev 1.2.0

Configuration and Calibration Guide HD0679 Rev 1.2.0 5
Revision history
Revision No
Date
Description of Change
1.0.0
Feb 2015
First Release
1.1.0
July 2015
Multi-Mode Calibration Section Added
1.2.0
October
2015
Process for calibrating a sensor in a mixer added

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Configuration and Calibration Guide HD0679 Rev 1.2.0 7
Table of Contents
Chapter 1 Introduction...........................................................................................................................11
1Introduction.................................................................................................................................11
Chapter 2 Configuration........................................................................................................................15
1Configuring the Sensor...............................................................................................................15
2Analogue Output Setup..............................................................................................................15
3Digital Inputs/Output Setup ........................................................................................................17
4Averaging Parameters................................................................................................................19
5Filtering.......................................................................................................................................20
6Typical Moisture Trace from a Hydronix Moisture Sensor in Flowing Material..........................21
7Filtering the Signal When Used in a Mixer Application..............................................................22
9Outputting the Sensor Data........................................................................................................26
Chapter 3 Sensor Integration and Material Calibration.........................................................................29
1Sensor Integration......................................................................................................................29
2Introduction to Material Calibration ............................................................................................29
3SSD Coefficient and SSD Moisture Content..............................................................................31
4Storing Calibration Data.............................................................................................................31
5Calibration Procedure for Flowing Material (Linear) ..................................................................32
6Good/Bad Calibration.................................................................................................................34
7Quadratic Calibration..................................................................................................................35
8Calibrating a sensor in a mixer...................................................................................................36
9Brix Calibration...........................................................................................................................38
Chapter 4 Best Practices ......................................................................................................................41
1General to all Applications .........................................................................................................41
Chapter 5 Sensor Diagnostics ..............................................................................................................43
1Sensor Diagnostics ....................................................................................................................43
Chapter 6 Frequently Asked Questions................................................................................................49
Appendix A Document Cross Reference..............................................................................................51
1Document Cross Reference.......................................................................................................51

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Configuration and Calibration Guide HD0679 Rev 1.2.0 9
Table of Figures
Figure 1: Connecting the Sensor (Overview)........................................................................................13
Figure 2: Guidance for Setting Output Variable....................................................................................15
Figure 3: Raw and Filter Include Sensor Output...................................................................................21
Figure 4: Raw Unscaled Moisture Trace in Flowing Material ...............................................................21
Figure 5: Graph showing the Filtered Signal.........................................................................................21
Figure 6: Typical Moisture Curve..........................................................................................................22
Figure 7: Graph showing Raw Signal during Mix Cycle........................................................................22
Figure 8: Filtering the RAW Unscaled Signal (1)..................................................................................23
Figure 9: Filtering the RAW Signal (2)..................................................................................................23
Figure 10: Relationship of Unscaled Values to Moisture......................................................................25
Figure 11: Data arrangement in the sensor..........................................................................................26
Figure 12: None specified Output Selection .........................................................................................27
Figure 13: Legacy Output Selection......................................................................................................27
Figure 14: Calibrations for 3 Different Materials ...................................................................................29
Figure 15: Typical Calibration Results ..................................................................................................30
Figure 16: Calibration inside the Sensor...............................................................................................31
Figure 17 - Calibration inside the Control System ................................................................................32
Figure 18 - Example of Good Material Calibration................................................................................34
Figure 19 - Examples of Poor Material Calibration Points....................................................................35
Figure 20: Example of a Good Quadratic Calibration...........................................................................36
Figure 21: Example of a Bad Quadratic Calibration .............................................................................36
Figure 22: Example of a Good Brix Calibration.....................................................................................39
Figure 23: Example of a Bad Brix Calibration.......................................................................................39

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