Summary of Contents for Solinst 301
- Page 1 More Info | Instructions | Get Quote SDI-12 User Guide Water Level Temperature Sensor October 26, 2023...
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Page 3: Table Of Contents
Table of Contents 1 Introduction 1.1 WLTS SDI-12 Interface Overview 1.2 WLTS SDI-12 System Components 1.3 Sensor Overview & Measurement Parameters 1.3.1 Absolute Level 1.3.2 Vented (Gauge) Level 1.3.3 Temperature 1.4 Communication/Vented Cable 1.4.1 Communication Cable Connections 2 WLTS Software Utility 2.1 Communicating with the WLTS Utility 2.2 Programming the Water Level Temperature Sensor 3 SDI-12 Wiring Setup and Installation... -
Page 5: Introduction
SDI-12 recorder or datalogger. This User Guide focuses on the Solinst Model 301 Water Level Temperature Sensor (WLTS) for use as a device in a SDI-12 set up. Configuration, communication, installation and description of the SDI-12 protocol are included. -
Page 6: Wlts Sdi-12 System Components
SDI-12 User Guide for Water Level Temperature Sensor 1.2 WLTS SDI-12 System Components The Solinst Model 301 Water Level Temperature Sensor requires the following components to complete a SDI-12 monitoring system: • Sensor • Communication/Vented Cable • USB-A Programming Cable •... -
Page 7: Sensor Overview & Measurement Parameters
SDI-12 User Guide for Water Level Temperature Sensor 1.3 Sensor Overview & Measurement Parameters The Solinst Water Level Temperature Sensor is a compact, all-in-one submersible hydrostatic level transmitter that provides continuous, accurate water level and temperature readings for a wide variety of applications. -
Page 8: Temperature
SDI-12 User Guide for Water Level Temperature Sensor 1.3.3 Temperature The WLTS records temperature compensated water levels. A Platinum Resistance Temperature Detector is used to accurately compensate for temperature changes within the range of 0ºC to +50ºC. 1.4 Communication/Vented Cable Communication Cables contain power and communication wires, as well as a vent tube running the length of the cable for the vented sensors. -
Page 9: Communication Cable Connections
SDI-12 User Guide for Water Level Temperature Sensor Communication Cable Specifications Wetted Materials: Polyurethane, Nickel plated Brass, Viton Diameter: Cable: 8 mm (0.32") Connector: 20 mm (0.79") Lengths: Up to 300 m Max. Bend Radius: 25 mm (1") Operating Temperature: -20ºC to 80ºC Vent Tube Moisture Built-in hydrophobic filters at sensor connection... -
Page 10: Wlts Software Utility
Water Level Temperature Sensor. Download the newest version of the WLTS Software Utility by visiting: https://downloads.solinst.com Note: The Firmware Upgrade Utility is downloaded along with the WLTS PC Software Utility. See Section 6.2. The following are the minimal hardware and software requirements for installation and operation:... -
Page 11: Programming The Water Level Temperature Sensor
SDI-12 User Guide for Water Level Temperature Sensor Figure 2-2 WLTS Utility Communication 2.2 Programming the Water Level Temperature Sensor Figure 2-2 WLTS Utility Page 11... - Page 12 SDI-12 User Guide for Water Level Temperature Sensor With the Sensor connected to the PC with the USB-A Programming Cable and the WLTS Utility started, select the appropriate Com Port for the connected WLTS from the drop-down menu. Click the 'Retrieve Settings’ icon .
- Page 13 SDI-12 User Guide for Water Level Temperature Sensor To test that the Sensor is reading correctly before connecting it to the Communication/Vented Cable for deployment, you can click the 'Real Time Reading Verification' icon to obtain real-time readings from the Sensor. If further Diagnostic Information is required, click the 'WLTS Diagnostics Information' icon to perform a series of tests (Memory and Sensor) and obtain Level and Temperature information that may be helpful when...
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Page 14: Sdi-12 Wiring Setup And Installation
SDI-12 User Guide for Water Level Temperature Sensor 3 SDI-12 Wiring Setup and Installation 3.1 SDI-12 Wiring Setup 1) Be sure that an WLTS is properly connected to the Communication/Vented Cable (see Section 1.4.1). 2) Turn off the power to the SDI-12 recorder and/or the SDI-12 network. 3) Refer to the wiring diagram below for correct connection of the Communication/Vented Cable to the SDI-12 recorder, including external power (12V). -
Page 15: Installation
Note: The length of the Communication/Vented Cable should not be assumed as the deployment depth, as there may be some slack in the cable. • Use a Solinst Model 101 or 102 Water Level Meter to take a manual depth to water measurement that will be used to verify WLTS readings. - Page 16 SDI-12 User Guide for Water Level Temperature Sensor Deployment • The WLTS is designed to be conveniently installed in a number of applications, as long as proper precautions and recommendations are followed. • The nose cone of the Sensor can be removed to make use of the 1/4" NPTM threaded connection. •...
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Page 17: Installation In A 2" Well
SDI-12 User Guide for Water Level Temperature Sensor 3.2.1 Installation in a 2" Well Solinst offers an optional Support Hanger Bracket and a 2" Well Cap Assembly, which consists of an insert, well cap base and well cap. The 2" Well Cap Assembly insert has two openings which can optionally be used to install the Communication Cable. - Page 18 SDI-12 User Guide for Water Level Temperature Sensor The following steps provide some guidance on how to install the Water Level Temperature Sensor using the Support Hanger Bracket and 2" Well Cap Assembly: 1. Slide the well cap base onto the well casing. Do not secure it at this point. 2.
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Page 19: Biofouling Conditions
105 mm 4–1/8" A Solinst Biofoul Screen can be used to protect the WLTS from biofouling. The copper-coiled Delrin screen naturally reduces biofouling, and lengthens the time a WLTS can be deployed before maintenance is required. The Biofoul Screen simply slips onto the sensor end of the WLTS where it is held in place with its compression fitting. -
Page 20: Wlts Sdi-12 Operation
SDI-12 User Guide for Water Level Temperature Sensor 4 WLTS SDI-12 Operation Once the WLTS system has been installed and powered up, you can start issuing SDI-12 commands to it. It is good practice to do the following: ‘ ’ Note: In all the following SDI-12 commands discussed, = the SDI-12 device address assigned the WLTS. -
Page 21: Sdi-12 Supported Commands
WLTS to take the readings, and the final “2” indicates how many readings will be returned. The Solinst WLTS will return a temperature and level measurement which are always ready to be read after the specified time, after that the SDI-12 recorder can issue the Send Data command 0D0! to retrieve the measurement data. -
Page 22: Start Measurement Command With Checksum: Amc
This command is used to get groups of data from the WLTS. An aD0! command is issued by the recorder after a M, MC, C, CC, or V command. The WLTS responds by sending the data. For a Solinst WLTS, this is currently two data items: temperature and level measurements. -
Page 23: Start Verification Command: Av
SDI-12 User Guide for Water Level Temperature Sensor 5.10 Start Verification Command: aV! This command tells the WLTS to return a verification (self-test) code in response to a subsequent aD0! command. In this case, the WLTS returns a non-zero time because the self-test execution verifies all internal memory checksums and these operations take about 13 seconds. -
Page 24: Maintenance And Troubleshooting
SDI-12 User Guide for Water Level Temperature Sensor 6 Maintenance and Troubleshooting 6.1 Maintenance As with any monitoring project, you should select the proper equipment and determine a maintenance schedule based on the environment specific to your application. For the WLTS, this means selecting the appropriate pressure range, ensuring the monitoring temperatures are within the instruments specifications, and making sure the wetted materials are compatible with site chemistry. -
Page 25: Changing Or Updating Wlts
Note: Before the Vented Cables are shipped, the vent tubes are blown dry with nitrogen gas, and capped, to ensure no moisture during transport. To ensure the vent tube is dry before deployment or storage, Solinst offers a Vented Cable Blowout Fitting that allows you to blow nitrogen gas through the tube. Contact Solinst for more details. -
Page 26: Firmware Updates
1) Connect the sensor to your PC using the USB-A Programming Cable. 2) Open the Solinst Firmware Upgrade Utility from the shortcut created on your desktop when the WLTS Utility was downloaded. Select the Com Port that the sensor is connected to from the drop-down menu. -
Page 27: Troubleshooting
SDI-12 User Guide for Water Level Temperature Sensor 6.3 Troubleshooting WLTS Does Not Reply The most common error is that SDI-12 commands are being sent with an address which does not match the actual device address of the WLTS being used, in which case the WLTS will not reply. Try changing the address of the SDI-12 command being sent. -
Page 28: References
SDI-12 User Guide for Water Level Temperature Sensor 7 References SDI-12 Support Group (Technical Committee). SDI-12: A Serial-Digital Interface Standard for Microprocessor-Based Sensors, Version 1.3, July 18, 2005. Available [online]: http://www.sdi-12.org/ Page 28... - Page 29 High Quality Groundwater and Surface Water Monitoring Instrumentation Solinst Canada Ltd., 35 Todd Road, Georgetown, ON L7G 4R8 Tel: +1 (905) 873-2255; (800) 661-2023 Fax: +1 (905) 873-1992 instruments@solinst.com...
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