TM Sentek Sentek IoT Hardware Manual Version 1.
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SENTEK - SENTEK IOT - STATEMENTS OF COMPLIANCE FCC COMPLIANCE STATEMENT This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Information to user This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules.
TABLE OF CONTENTS Sentek - Sentek IoT - Statements of Compliance ........................................... ii FCC Compliance statement ............................................................................................. ii EMC approvals................................................................................................................ ii RoHS.............................................................................................................................. ii Introduction .
TABLE OF FIGURES Figure 1 Block Diagram of the Sentek IoT in use .......................................................... 1 Figure 2 SENTEK IoT block diagram............................................................................ 2 Figure 3 Internal 4G Modem/ Bluetooth/ Solar Regulator board and connections ............ 4 Figure 4 Properly installed probe ................................................................................. 5 Figure 5 Sentek IoT Android App in use .........................
Introduction INTRODUCTION BACKGROUND The Sentek IoT probe option combines the scientifically and commercially proven sensor technology of Drill & Drop probes, with Internet of Things (IoT) wireless communication. Sentek IoT utilises 4G cellular communications to send soil water, fertiliser / salinity, temperature and voltage data from the probe to the cloud internet service of the Sentek IrriMAX Live software.
Introduction • • • • Solar panel Battery Drill & Drop probe Mounting bracket and mast 4G Modem/ Bluetooth board Antenna Solar regulator board Solar panel Battery Plastic enclosure Mast Probe cable Figure 2 SENTEK IoT block diagram Copyright © 2019 Sentek Pty Ltd All rights reserved Page 2
Referenced Documents REFERENCED DOCUMENTS • • • • Sentek Drill & Drop Installation Guide Sentek Drill & Drop Probe Interface Manual Android Probe Utility App User Guide IrriMAX Live User Guide Copyright © 2019 Sentek Pty Ltd All rights reserved Page 3
System Setup SYSTEM SETUP Preparation, assembly and installation should generally be completed in the order of the steps in this section. Efficiencies might be gained by experienced installers altering the order of the steps taken. INTERNET PROVISIONING The Sentek IoT when purchased as a complete probe option has been normalised, configured and tested to allow an easy and fast installation process. Consequently, probe sensor data will be transferred automatically to Sentek servers.
System Setup 6. Using the mounting bracket mount the Sentek IoT enclosure and the external antenna to the mast. 7. Install the Sentek IoT in such a way as to maximise solar irradiation onto the solar panel throughout the year. The Sentek IoT is designed for to achieve reasonable solar collection around the world when installed on a vertical post. SENTEK IOT PROBE SETUP 1.
System Setup Figure 5 Sentek IoT Android App in use The test upload should be completed, and the result displayed a few minutes from the time the new probe was connected. For a complete list of the modem “Last Response” numbers please see Table 2 Last Response codes. In the case of failure please see Appendix D - the Troubleshooting Guide section. Figure 6 Sentek IoT Android App in use, cont.
System Setup Table 1 Signal strength condition +CSQ Value Signal Condition 2-9 Marginal 10-14 OK 15-19 Good 20-30 Excellent 99 Not known Information screen Tap the displayed probe on the screen to see information held in the probe. It also has three buttons to navigate to the other functions of the Sentek App.
System Setup Next Sample Time Time of the next reading. Caution: Automatic scheduled samples and uploads do not occur while the Sentek App is connected to the probe. If a scheduled sample interval occurs while the App is connected the sample will not be taken and an invalid reading (gap in the graph) will be recorded. Sampling will not reoccur until at least 60 seconds after the App is disconnected.
System Setup Sensor Depth • Multiples of 10cm Raw count • Updated about once per second while Query All Sensors is active • Correctly operating when value is not zero and not 65534 or 65535) Calibrated Value • Updated about once per second while Query All Sensors is active • Correctly operating when the value is not zero and not "Invalid" • Value of "invalid" when in soil indicates the sensor is not operating correctly Note: You can drag to scroll the sensor list if there are more sensors than will fit on o
System Setup Modem Test and Upload Screen Warning: In the Sentek App Upload and Test buttons cannot upload while the App is connected. They only tell the probe to schedule the test or upload, one minute after the App has been exited. The upload takes about 2 minutes or longer if a lot of data must be uploaded. This screen appears when the Modem button is tapped on the Information screen. 1. The result of any previous operation (App or periodic upload) will appear above the progress bar. 2.
System Setup • 081 Deferred upload You reconnected before the upload commenced - go back to step 3 • 040 Success The Test or Upload showed the probe successfully uploaded to the Internet. • 053 Connection Failure (…) or Other numeric codes The modem could not successfully upload to the Internet. • For a complete list of the modem’s “Last Response” numbers please see Table 2 Last Response codes. In the case of failure please see Appendix D - the Troubleshooting Guide section.
Maintenance MAINTENANCE Sentek IoT distributors can provide a regular maintenance program which consists of regular visits by an authorised installer to test and ensure correct operation of the system. A regular maintenance program such as this will ensure that the Sentek IoT system functions properly and continues to give worry free operation. DTU Regular maintenance of the Sentek IoT system should consist of cleaning of the DTU to ensure dust and grime is kept to a minimum, especially around all seals.
Appendix A – Modem information APPENDIX A – MODEM INFORMATION BUILT IN MODEM Sentek IoT uses a built in 4G modem. AirPrime® HL7800 LPWA Module 4G LTE Category Frequency Bands Cat-M1 B1, B2, B3, B4, B5, B8, B9, B10, B12, B13, B14, B17, B18, B19, B20, B25, B26, B27, B28, B66 Data Speed Peak Download Rate Peak Upload Rate 300Kbps 375Kbps Technical SIM interface 1.
Appendix B – Response Fields APPENDIX B – RESPONSE FIELDS LAST RESPONSE The Last Response shown by the Sentek App is the result of the last attempt by the probe to upload to the Sentek server. This upload attempt can be a scheduled upload (triggered by the Sample Origin), or a user-initiated Test or Upload. See below for more detail on these Responses. Table 2 Last Response codes Code Message Detail Description Upload response codes.
Appendix C- Glossary of Terms APPENDIX C- GLOSSARY OF TERMS 3G Third Generation mobile phone network 4G Fourth Generation mobile phone network Sentek IoT Sentek “Internet of Things” DTU & Probe system BW Bandwidth, the amount of traffic allowed in a set period CDMA Code Division Multiple Access (Used by selected Modems) Domain name Name given to web location e.g. www.sentek.com.
Appendix D - Troubleshooting Guide APPENDIX D - TROUBLESHOOTING GUIDE As Sentek IoT probes are configured before delivery, only user-controlled capabilities should be addressed in the field. Any problem that cannot be resolved should be directed to your distributor. Once a problem has been flagged, troubleshooting should be carried out in this order: 1. Download all data and review graphs, looking at all sensors for problem symptoms and causes. 2.
Appendix D - Troubleshooting Guide Symptom/Error Message Data uploaded does not show expected (correct) time Possible Cause of Failure Check Possible Solution Poor signal strength Check the signal strength parameter +CSQ with the Sentek App Reposition Sentek IoT for better signal strength Probe Clock incorrect Connect using Android App and check probe time Select option to Synchronize with Computer Copyright © 2019 Sentek Pty Ltd All rights reserved Page 17
Appendix E - Recommended Maintenance Schedules APPENDIX E - RECOMMENDED MAINTENANCE SCHEDULES Daily • Use IrriMAX Live graph to review battery voltage (V1, V2) profile and when the voltage shows signs of degradation ensure the solar panel is clean and free from any shadowing casted by overgrown vegetation. Check the orientation and angle of the solar panel. Replace battery if over 3 years old.
FCC statement This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1) this device may not cause harmful interference, and 2) this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
