Campbell CS511 Product Manual
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Campbell CS511 Product Manual

Dissolved oxygen sensor
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Revision: 03/2022
Copyright © 2001 – 2022
Campbell Scientific, Inc.

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Summary of Contents for Campbell CS511

  • Page 1 Revision: 03/2022 Copyright © 2001 – 2022 Campbell Scientific, Inc.

  • Page 2: Table Of Contents

    Table of contents 1. Introduction 2. Precautions 3. Initial inspection 4. QuickStart 5. Overview 6. Specifications 7. Installation 7.1 Getting sensor ready to use 7.2 Wiring 7.3 Programming 7.4 Calibration 8. Maintenance Appendix A. Importing Short Cut code into CRBasic Editor Appendix B.

  • Page 3: Introduction

    1. Introduction The CS511 is a rugged, low-maintenance sensor that is manufactured by Sensorex. It consists of a self-polarizing galvanic cell that generates a millivolt signal proportional to the amount of oxygen present in the measured medium (typically water). NOTE: This manual provides information only for CRBasic data loggers.

  • Page 4: Quickstart

    1. Open Short Cut and click Create New Program. 2. Double-click the data logger model. 3. In the Available Sensors and Devices box, type CS511 or locate the sensor in the Sensors > Water > Quality folder. Double click on the CS511 Dissolved Oxygen Probe. The default calibration value of 0.34 is based on an average.
  • Page 5 4. Click on the Wiring tab to see how the sensor is to be wired to the data logger. Click OK after wiring the sensor. 5. In Output Setup, type the scan rate, meaningful table names, and Data Output Storage Interval. Click Next. CS511 Dissolved Oxygen Sensor...

  • Page 6: Overview

    5. Overview The CS511 is a galvanic sensor, which produces a millivolt signal proportional to the amount of oxygen present in the measured medium. Oxygen diffuses through the membrane onto the cathode, reacts chemically, and combines with the anode. An electrical current is produced by this chemical reaction which is converted from microamps to millivolts by an in-line resistor.

  • Page 7: Specifications

    Features: In-line thermistor provides automatic temperature compensation Compatible with Campbell Scientific CRBasic data loggers: CR6, CR1000X, CR800-series, CR350-series, CR300-series, CR3000, CR1000 6. Specifications Principle of measurement: Membrane-covered, galvanic oxygen sensor Output signal: 33 mV ± 9 mV (100% saturation), < 2 mV (0% saturation) Measurement range: 0.5 to 50 ppm...

  • Page 8: Installation

    Figure 6-1. CS511 dimensions 7. Installation If you are programming your data logger with Short Cut, skip Wiring (p. 8) and Programming 8). Short Cut does this work for you. See QuickStart (p. 2) for a Short Cut tutorial. CS511 Dissolved Oxygen Sensor...

  • Page 9: Getting Sensor Ready To Use

    2. Inspect the membrane for wrinkles. Replace membrane if wrinkled. See Maintenance(p.10). 3. Pour clean water into the lower body and look for leakage around the membrane. Dispose of the water, and if there is leakage, replace membrane. See Maintenance(p.10). Figure 7-2. Check for leakage CS511 Dissolved Oxygen Sensor...

  • Page 10: Wiring

    7.2 Wiring Data logger connection is provided in following table. The CS511 can use one differential terminal or one single-ended terminal. Differential wiring is better at rejecting electrical noise and ground loop error.

  • Page 11: Calibration

    2. Connect the CS511 to the data logger. 3. If the CS511 has been deployed in the field, gently wipe the membrane with a soft cloth. 4. Place the CS511 in air away from direct sunlight with the membrane facing upward.

  • Page 12: Maintenance

    Refer to www.campbellsci.com/order/cs511-l for more information. The CS511 uses a strong, easy-to-clean, and easy-to-change membrane in a screw-on membrane cap. The sensor can be fully overhauled in five minutes. Cleaning sensor and replacing membrane procedure: 1. Unscrew the lower body from the upper body. See Figure 7-1 (p.
  • Page 13 Place the washer on top of the membrane. e. Using the membrane tool, install the membrane lock on top of the washer. CAUTION: Make sure the cap is upright (not sideways) when securing the membrane lock to the washer. CS511 Dissolved Oxygen Sensor...
  • Page 14 10. Keep the sensor upright with the cable pointed upwards (not sideways). Screw the bottom cap onto the upper body until hand tight. NOTE: Excess electrolyte will leak out at the joint between the sensor cap and upper body. CS511 Dissolved Oxygen Sensor...

  • Page 15: Appendix A. Importing Short Cut Code Into Crbasic Editor

    Block. This adds an apostrophe (') to the beginning of each of the highlighted lines, which instructs the data logger compiler to ignore those lines when compiling. The Comment Block feature is demonstrated at about 5:10 in the CRBasic | Features video CS511 Dissolved Oxygen Sensor...

  • Page 16: Appendix B. Example Program

    The following table shows the wiring for the example. Table B-1: Wiring for CR1000X example CR1000X connection Sensor wire color White Black ⏚ Clear CRBasic Example 1: CR1000X program that measures the CS511 using the VoltDiff() instruction 'CR1000X 'Declare Variables and Units Public Batt_Volt Public DOmV...
  • Page 17 CRBasic Example 1: CR1000X program that measures the CS511 using the VoltDiff() instruction 'Default Data logger Battery Voltage measurement Batt_Volt: Battery(Batt_Volt) 'CS511 Dissolved Oxygen Sensor measurements DOmV and DOppm: VoltDiff(DOmV,1,mV200,1,True,0,60,1,0) DOppm = DOMult * DOmV 'Call Data Tables and Store Data...

  • Page 18: Appendix C. Dissolved Oxygen Tables

    10.11 9.93 9.76 9.59 9.42 9.25 9.09 8.93 8.77 8.62 8.47 8.32 10.07 9.89 9.72 9.55 9.38 9.22 9.05 8.89 8.74 8.58 8.43 8.28 8.14 9.86 9.68 9.51 9.35 9.18 9.02 8.86 8.55 8.25 8.11 7.96 CS511 Dissolved Oxygen Sensor...
  • Page 19 6.38 6.27 6.16 6.05 5.94 5.84 5.74 5.63 5.53 5.44 5.34 6.51 6.39 6.28 6.17 6.06 5.96 5.85 5.75 5.65 5.55 5.45 5.35 5.26 6.41 6.19 6.08 5.97 5.86 5.76 5.66 5.56 5.46 5.37 5.27 5.18 CS511 Dissolved Oxygen Sensor...
  • Page 20 8.39 8.14 7.66 7.44 9.26 8.99 8.73 8.47 8.22 7.98 7.75 7.52 9.08 8.81 8.56 8.31 8.07 7.83 7.38 7.17 8.64 8.39 8.15 7.91 7.69 7.46 7.25 7.04 8.73 8.48 8.23 7.77 7.54 7.33 7.12 6.91 CS511 Dissolved Oxygen Sensor...
  • Page 21 5.68 5.53 6.72 6.54 6.37 6.21 6.05 5.89 5.74 5.59 5.45 6.61 6.44 6.28 6.12 5.96 5.81 5.66 5.51 5.37 6.51 6.34 6.18 6.03 5.87 5.72 5.58 5.44 6.41 6.25 6.09 5.94 5.79 5.64 5.36 5.22 CS511 Dissolved Oxygen Sensor...
  • Page 22 See Product Details on the Ordering Information pages at www.campbellsci.com . Other manufacturer's products, that are resold by Campbell Scientific, are warranted only to the limits extended by the original manufacturer. Refer to www.campbellsci.com/terms#warranty for more information.
  • Page 23 To obtain a Returned Materials Authorization or Repair Reference number, contact your CAMPBELL SCIENTIFIC regional office. Please write the issued number clearly on the outside of the shipping container and ship as directed. For all returns, the customer must provide a “Statement of Product Cleanliness and Decontamination”...
  • Page 24 Do not recharge, disassemble, heat above 100 °C (212 °F), solder directly to the cell, incinerate, or expose contents to water. Dispose of spent batteries properly. WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR...
  • Page 25 Campbell Scientific Regional Offices Australia France Thailand Location: Garbutt, QLD Australia Location: Vincennes, France Location: Bangkok, Thailand Phone: 61.7.4401.7700 Phone: 0033.0.1.56.45.15.20 Phone: 66.2.719.3399 Email: info@campbellsci.com.au Email: info@campbellsci.fr Email: info@campbellsci.asia Website: www.campbellsci.com.au Website: www.campbellsci.fr Website: www.campbellsci.asia Brazil Germany Location: São Paulo, SP Brazil...

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