Campbell CS511 Instruction Manual
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Campbell CS511 Instruction Manual

Dissolved oxygen probe
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CS511 Dissolved
Oxygen Probe
Revision: 2/16
C o p y r i g h t
©
2 0 0 1 - 2 0 1 6
C a m p b e l l
S c i e n t i f i c ,
I n c .

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Summary of Contents for Campbell CS511

  • Page 1 CS511 Dissolved Oxygen Probe Revision: 2/16 C o p y r i g h t © 2 0 0 1 - 2 0 1 6 C a m p b e l l S c i e n t i f i c ,...
  • Page 3 Limited Warranty “Products manufactured by CSI are warranted by CSI to be free from defects in materials and workmanship under normal use and service for twelve months from the date of shipment unless otherwise specified in the corresponding product manual. (Product manuals are available for review online at www.campbellsci.com.) Products not manufactured by CSI, but that are resold by CSI, are warranted only to the limits extended by the original manufacturer.
  • Page 4 SCIENTIFIC, INC., phone (435) 227-9000. After an application engineer determines the nature of the problem, an RMA number will be issued. Please write this number clearly on the outside of the shipping container. Campbell Scientific’s shipping address is: CAMPBELL SCIENTIFIC, INC.
  • Page 5 • Periodically (at least yearly) check electrical ground connections. 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 ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.

  • Page 7: Table Of Contents

    Table of Contents PDF viewers: These page numbers refer to the printed version of this document. Use the PDF reader bookmarks tab for links to specific sections. 1. Introduction ..............1 2. Precautions ..............2 3. Initial Inspection ............2 Shipping Kit and Accessories ..............
  • Page 8 PT4-L Specifications ................ E-2 Agitator Control ................E-2 Figures 1-1. The CS511 is currently Sensorex’s DO6400/T (left). The DO6200/T (right) was shipped prior to June 2008 (Appendix D). .. 1 8-1. Separate the lower body from the upper body ........13 8-2.

  • Page 9: Introduction

    CS511 Dissolved Oxygen Probe 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).

  • Page 10: Precautions

    Drain the solution from the CS511 before storing it out of water. • Replace the membrane and recalibrate the probe before redeploying the CS511 after it has been stored out of water or dried up in the field. Initial Inspection •...

  • Page 11: Quickstart

    Short Cut is available as a download on www.campbellsci.com and the ResourceDVD. It is included in installations of LoggerNet, PC200W, PC400, or RTDAQ. The following procedure shows using Short Cut to program the CS511. Open Short Cut and. Click New Program.
  • Page 12 Click Next. 3. Under the Available Sensors and Devices list, select the Sensors | Water | Quality folder. Select CS511 Dissolved Oxygen Probe, and click move the selection to the Selected device window. Variables default to DOmv for the millivolt measurements and DOppm for the ppm values.

  • Page 13: Overview

    Overview The CS511 is a galvanic probe 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.

  • Page 14: Specifications

    Regular servicing is not required. The probe can be fully overhauled in five minutes. The CS511 has a user-specified cable length. Its cable can terminate in: • Pigtails that connect directly to a Campbell Scientific datalogger (option –PT).
  • Page 15 CS511 Dissolved Oxygen Probe Operating Conditions 0 to 50 °C (32 to 122 °F) Temperature: 0 to 100 psig Pressure: 60 mm (2.5 in) Minimum Submersion Depth: 5 cm/s (2 inch/s) across membrane Minimum Water Flow: In air or in air saturated water Calibration: Automatic from 4 to 40 °C (40 to 104 °F)

  • Page 16: Installation

    CS511 Dissolved Oxygen Probe Installation If you are programming your datalogger with Short Cut, skip Section 7.3, Wiring to the Datalogger , and Section 7.4, Programming . Short Cut (p. 10) (p. 11) does this work for you. See Section 4, QuickStart , for a Short Cut tutorial.
  • Page 17 CS511 Dissolved Oxygen Probe 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 Section 8.1, Cleaning Probe and Replacing the Membrane (p. 13) Pour fresh electrolyte in the bottom cap and fill to the top of the cap.

  • Page 18: Mount Probe

    CS511 Dissolved Oxygen Probe Mount Probe Mount the CS511 in water at a slight angle, which prevents bubbles from becoming trapped on the membrane. Wiring to the Datalogger The CS511 can use one differential channel (TABLE 7-1) or one single-ended channel (TABLE 7-2).

  • Page 19: Programming

    (p. 11) Wire the CS511 to the datalogger (see wiring diagram generated by Short Cut or Section 7.3, Wiring to the Datalogger (p. 10) If the CS511 has been deployed in the field, gently wipe the membrane with a soft cloth.
  • Page 20 CS511 Dissolved Oxygen Probe Place the CS511 in air away from direct sunlight with the membrane facing upward. Place a drop of clean water on the membrane. Wait for readings to stabilize. This may take 15 minutes or more. Determine the air temperature and barometric pressure.

  • Page 21: Maintenance

    CS511 Dissolved Oxygen Probe Maintenance The only maintenance required is regular cleaning and replacement of the membrane. Cleaning Probe and Replacing the Membrane Unscrew the lower body from the upper body (FIGURE 8-1). FIGURE 8-1. Separate the lower body from the upper body Safely dispose of the electrolyte.

  • Page 22: Remove Membrane And O-Ring

    CS511 Dissolved Oxygen Probe Using the membrane tool, unscrew the membrane lock that is in the lower body (see FIGURE 8-2). Remove and dispose of the membrane and its O-ring as show in FIGURE 8-2. Membrane Tool Membrane Lock Spacer...

  • Page 23: Using A Toothbrush To Clean Probe

    CS511 Dissolved Oxygen Probe To clean, immerse the top part of the sensor in distilled white vinegar (3% acetic acid) for about 30 min. If vinegar is unavailable, use a soft toothbrush, automatic dishwasher detergent, and clean water to clean the cathode, anode, and plastic.

  • Page 24: Proper O-Ring Placement

    CS511 Dissolved Oxygen Probe Replace the membrane and its O-ring by first placing the new O-ring at the very bottom of the membrane cavity (see FIGURE 8-4). Remove the paper backing from a new membrane and place the new membrane on top of the O-ring, and then place the spacer on top of the membrane.

  • Page 25: Installing Membrane

    CS511 Dissolved Oxygen Probe Membrane Tool Membrane Lock Spacer Membrane O-ring FIGURE 8-5. Installing membrane Inspect the membrane for wrinkles; replace membrane if wrinkled.

  • Page 26: Check For Leakage

    CS511 Dissolved Oxygen Probe Pour some clean water into the lower body and look for leakage around the membrane (see FIGURE 8-6); replace membrane if there is leakage. If there is no leakage, dispose of the water. FIGURE 8-6. Check for leakage Pour fresh electrolyte in the bottom cap and fill to the top of the cap.

  • Page 27: Importing Short Cut Code Into Crbasic Editor

    Appendix A. Importing Short Cut Code Into CRBasic Editor This tutorial shows: • How to import a Short Cut program into a program editor for additional refinement • How to import a wiring diagram from Short Cut into the comments of a custom program Short Cut creates files, which can be imported into CRBasic Editor.
  • Page 28 Appendix A. Importing Short Cut Code Into CRBasic Editor...

  • Page 29: Example Programs

    DataInterval(0,60,Min,10) Sample(1,DOmV,FP2) Sample(1,DOppm,FP2) Sample(1,Batt_Volt,FP2) EndTable DataTable(Table2,True,-1) DataInterval(0,1440,Min,10) Minimum(1,Batt_Volt,FP2,False,False) EndTable 'Main Program BeginProg Scan(5,Sec,1,0) 'Default Datalogger Battery Voltage measurement Batt_Volt: Battery(Batt_Volt) 'CS511 Dissolved Oxygen Probe measurements DOmV and DOppm: VoltDiff(DOmV,1,mV250,1,True,0,_60Hz,1,0) DOppm=DOmV*0.34 'Call Data Tables and Store Data CallTable(Table1) CallTable(Table2) NextScan EndProg...

  • Page 30: Voltse Cr200(X) Program

    'Define Data Tables DataTable(Table1,True,-1) DataInterval(0,60,Min) Sample(1,DOmV) EndTable DataTable(Table2,True,-1) DataInterval(0,1440,Min) Minimum(1,Batt_Volt,False,False) EndTable 'Main Program BeginProg Scan(10,Sec) 'Default Datalogger Battery Voltage measurement Batt_Volt: Battery(Batt_Volt) 'CS511 Dissolved Oxygen Probe measurements DOmV and DOppm: VoltSE(DOmV,1,1,1,0) DOppm=DOmV*0.34 'Call Data Tables and Store Data CallTable(Table1) CallTable(Table2) NextScan EndProg...

  • Page 31: Dissolved Oxygen Tables

    Appendix C. Dissolved Oxygen Tables C.1 Dissolved Oxygen in Fresh Water...

  • Page 32: Dissolved Oxygen In Salt Water

    Appendix C. Dissolved Oxygen Tables C.2 Dissolved Oxygen in Salt Water...

  • Page 33: Sensorex's Model Do6200/T

    Appendix D. Sensorex’s Model DO6200/T Prior to June 2008, Campbell Scientific’s CS511 was Sensorex’s model DO6200/T (see FIGURE D-1) instead of Sensorex’s model DO6400/T. Programming, wiring, and some specifications are the same for these two sensors. However, they look different and use different accessories.

  • Page 34: Accessories For Do6200/T

    Appendix D. Sensorex’s Model DO6200/T Materials of Construction Delrin Probe body: Membrane O-ring = Buna N O-rings: Body Seal O-ring = Viton 0.05 mm Teflon Membrane: 8.9 cm (3.5 in) height, 5.6 cm (2.2 in) Dimensions and Weight: diameter, 0.5 kg (1.1 lb) 3 m (10 ft) Cable Length: 5-wire, 22 AWG-shielded, PVC jacketed...
  • Page 35 Appendix E. PT4-L Agitator E.1 Description The PT4 agitator is a reliable, robust agitator for use in conjunction with probes subjected to bio-fouling in ponds and stagnant water conditions (flow <5 cm/s). probes require a minimum water velocity across their membranes to function properly.

  • Page 36: Pt4-L Specifications

    Maximum ON time: E.3 Agitator Control Campbell Scientific ships the agitator with a repeat cycle timer. Using the repeat-cycle timer requires no datalogger programming. However, some users choose to use a solid-state relay and have the datalogger agitate the water on the probe face either periodically throughout the day or just before measurement.
  • Page 37 Appendix E. PT4-L Agitator The wiring for the agitator as controlled by this example program is as follows: Ground/G WHITE Agitator Datalogger #7321 Relay Crydom D1D07 Port C1 BLUE 12 V Battery FIGURE E-3. Agitator Wiring The following instructions would trigger the agitator as discussed in the agitator manual.
  • Page 38 Appendix E. PT4-L Agitator...
  • Page 40 Santo Domingo, Heredia 40305 SOUTH AFRICA COSTA RICA • cleroux@csafrica.co.za • info@campbellsci.cc www.campbellsci.co.za www.campbellsci.cc Campbell Scientific Southeast Asia Co., Ltd. Campbell Scientific Ltd. 877/22 Nirvana@Work, Rama 9 Road Campbell Park Suan Luang Subdistrict, Suan Luang District 80 Hathern Road Bangkok 10250...

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