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Sentek SLIMLINE SDI-12 Manual

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Summary of Contents for Sentek SLIMLINE SDI-12

  • Page 1 Version 1.0...
  • Page 2 All rights reserved. No part of this document may be reproduced, transcribed, translated into any language, or transmitted in any form electronic or mechanical for any purpose whatsoever without the prior written consent of Sentek Pty Ltd. All intellectual and property rights remain with Sentek Pty Ltd. All information presented is subject to change without notice.

  • Page 3: Sentek - Statements Of Compliance

    Any modifications to any part of the equipment or to any peripherals may void the EMC compliance of the equipment. Radio Interference The probe is not to be operated in free air as it may cause interference to radio communication devices Copyright © 2001 – 2020 Sentek Pty Ltd All rights reserved Page ii...

  • Page 4: Table Of Contents

    Configuring SDI-12 probes ....................5 Slimline Probe Technical Specifications ............. 6 Slimline SDI-12 Technical Specifications.................6 Time to Sample Sensors: ....................6 Current consumption: ....................7 Maintenance......................8 Storage ...........................8 Cable ............................8 Connectors ..........................8 Copyright © 2001 – 2020 Sentek Pty Ltd All rights reserved Page iii...

  • Page 5: The Slimline Probes

    The Slimline Probes About Sentek 150cm Slimline SDI-12 probes are a fully sealed soil probe, for measuring soil water content, temperature and optionally, salinity. They are designed for slurry installation into the ground. Sensors and electronics are encapsulated in the probe plastic with a resin, to prevent water intrusion and to strengthen the probe.

  • Page 6: Sdi-12 Probes

    Sentek Slimline SDI-12 Probe Manual SDI-12 probes Top-entry removable Connector Side-entry Permanent connection The SDI-12 probe consists of the probe rod, containing both the interface and sensors, with a permanently wired cable into the side of the probe, or a cable plugged into the top of the probe. The cable terminates in a three-pin connector.

  • Page 7: Sentek Probe Configuration Utility

    PConfig Sensor Test tab page only shows the calibrated value for SDI-12 probes. About the SDI-12 Communication See the Sentek Drill & Drop SDI-12 Series III Probe Manual for a description of SDI-12 power sequence, timing and the SDI-12 command set.

  • Page 8: Sdi-12 Probe Programming Cable

    Sentek Slimline SDI-12 Probe Manual M16, 3-pin, Rigoal connectors An SDI-12 probe requires connection to a third-party SDI-12 logger, consequently the 30 cm SDI-12 logger cable is terminated in three bare wires. SDI-12 Cable +Vin 0V DATA 3-wire cable Green White...

  • Page 9: Installation And Setup Of The Slimline Probe

    This Probe Configuration Utility (PConfig) runs through the SDI-12 connector. You must use the SDI- 12 Programming cable. Note: If PConfig is not installed on your computer, the installation steps are described in the Sentek Drill & Drop SDI-12 Series III Probe Manual. 1. Unplug the SDI-12 logger from the probe cable (if needed).

  • Page 10: Slimline Probe Technical Specifications

    Sentek Slimline SDI-12 Probe Manual Slimline Probe Technical Specifications Slimline SDI-12 Technical Specifications The probe rod encapsulates all sensors and electronics. You cannot disconnect the side-entry cable from the probe rod. The top entry cable can be removed. SDI-12 Protocol: Version 1.3...

  • Page 11: Current Consumption

    Sentek Slimline SDI-12 Probe Manual Current consumption: This graph shows the typical current consumption for each sensor. Use this graph and the time to sample sensors table to estimate the sampling energy requirement. After waking from low power, the probe current is at Idle until receiving a valid SDI-12 command. The probe returns to low power 150 ms after command processing, unless another command is received.

  • Page 12: Maintenance

    If necessary, the cabling can be elevated or buried away from potential damaging elements. Sentek recommends protecting exposed cable with some form of conduit. Connectors Connectors on Slimline probes are designed to resist dust and moisture when correctly installed. The connectors will lose their water resistance when not screwed tight.

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