CS511-L Dissolved
Oxygen Probe
Revision: 1/13
Copyright © 2001-2013
Campbell Scientific, Inc.
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Table of Contents
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1. Introduction.................................................................1
2. Cautionary Statements...............................................2
3. Initial Inspection .........................................................2
3.1 Shipping Kit and Accessories ..............................................................2
3.1.1 Shipping Kit..................................................................................2
3.1.2 Optional Probe Accessories ..........................................................2
4. Quickstart .................................................................... 3
4.1 Getting Probe Ready to Use.................................................................3
4.2 Use SCWin to Program Datalogger and Generate Wiring Diagram....5
4.3 Mount Probe.........................................................................................8
5. Overview......................................................................8
6. Specifications .............................................................9
7. Operation...................................................................11
7.1 Wiring ................................................................................................11
7.2 Programming......................................................................................11
7.2.1 CRBasic ......................................................................................11
7.2.1.1 Example CR1000 Program Using VoltDiff......................12
7.2.1.2 Example CR200(X) Program ...........................................13
7.2.2 Edlog...........................................................................................14
7.2.2.1 Portion of CR10X Sample Program Using P1 .................14
7.2.2.2 Portion of CR10X Sample Program Using P2 .................14
7.3 Calibration..........................................................................................14
8. Maintenance ..............................................................16
8.1 Cleaning Probe and Replacing the Membrane ...................................16
Appendices
A.
Dissolved Oxygen Tables ...................................... A-1
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Table of Contents
B. Sensorex’s Model DO6200/T ..................................B-1
B.1 DO6200/T Specifications ................................................................ B-1
B.2 Accessories for DO6200/T .............................................................. B-2
C. PT4-L Agitator .........................................................C-1
C.1 Description ...................................................................................... C-1
C.2 PT4-L Specifications....................................................................... C-2
C.3 Agitator Control .............................................................................. C-2
Figures
1-1. The CS511-L is currently Sensorex’s DO6400/T (left). The
DO6200/T (right) was shipped prior to June 2008 (refer to
Appendix B)..................................................................................... 1
8-1. Separate the lower body from the upper body................................... 16
8-2. Remove membrane and O-ring.......................................................... 17
8-3. Using a toothbrush to clean probe..................................................... 18
8-4. Proper O-ring placement ................................................................... 19
8-5. Installing membrane .......................................................................... 20
8-6. Check for leakage.............................................................................. 21
B-1. Sensorex’s model DO6200/T .......................................................... B-1
C-1. Preventing Bio-fouling of a DO Sensor........................................... C-1
C-2. DO sensor with PT4 Agitator .......................................................... C-2
C-3. Agitator Wiring ............................................................................... C-3
Tables
7-1. Sensor Wiring.................................................................................... 11
7-2. Wiring for Example 1........................................................................ 12
7-3. Wiring for Example 2........................................................................ 13
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CS511-L Dissolved Oxygen Probe
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).
Before installing the CS511, please study
• Section 2, Cautionary Statements
• Section 3, Initial Inspection
• Section 3.1, Quickstart
NOTE
DO6400/T
Currently, the CS511 is Sensorex’s Model DO6400/T. Prior to
June 2008, the CS511 was Sensorex’s Model DO6200/T.
Programming, wiring, and most specifications are the same for
these two sensors. However, they use different accessories and
look different (see FIGURE 1-1). Refer to Appendix B if you
have Sensorex’s Model DO6200/T.
DO6200/T
FIGURE 1-1. The CS511-L is currently Sensorex’s DO6400/T (left).
The DO6200/T (right) was shipped prior to June 2008 (refer to
Appendix B).
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CS511-L Dissolved Oxygen Probe
2. Cautionary Statements
• The CS511 is a precision instrument. Please handle it with care.
• Because the CS511 is shipped dry, electrolyte needs to be added before
using the probe (see Section 4.1, Getting Probe Ready to Use).
• Letting the CS511 dry up shortens the life of the membrane and probe.
• 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.
3. Initial Inspection
• Upon receipt of the CS511, inspect the packaging and contents for
damage. File damage claims with the shipping company.
• Immediately check package contents against the shipping documentation
(see Section 3.1, Shipping Kit and Accessories). Contact Campbell
Scientific about any discrepancies.
• The model number and cable length are printed on a label at the
connection end of the cable. Check this information against the shipping
documents to ensure the expected product and cable length are received.
3.1 Shipping Kit and Accessories
NOTE
3.1.1 Shipping Kit
3.1.2 Optional Probe Accessories
Except for the agitator, these items are for Sensorex’s
DO6400/T. Refer to Appendix B if you have a DO6200/T.
(1) Membrane replacement tool
(1) Bottled DO electrolyte, 250 ml
(2) Teflon membranes
(2) Membrane O-rings
(2) Membrane spaces
• PT4─L Agitator with Repeat Cycle Timer for stagnant conditions (see
Appendix C)
• 22261 Maintenance Kit containing (5) Teflon membranes, (5) membrane
O-rings, (5) tensioning washers, and a 250-ml bottle of electrolyte
2
• 22262 Maintenance Kit containing (25) Teflon membranes, (25) membrane
O-rings, (25) tensioning washers, and a 500-ml bottle of electrolyte
• 22263 Spare Parts Kit containing (2) membrane locks, (2) tensioning
washers, (2) body O-rings, and (1) membrane-replacement tool
4. Quickstart
4.1 Getting Probe Ready to Use
CS511-L Dissolved Oxygen Probe
Please review Section 7, Operation, for wiring, programming, and calibration
information.
1. Unscrew the lower body from the upper body.
2. Inspect the membrane for wrinkles. Replace membrane if wrinkled (see
Section 8.1, Cleaning Probe and Replacing the Membrane).
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CS511-L Dissolved Oxygen Probe
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 Section 8.1, Cleaning Probe and Replacing the
Membrane).
Water
NOTE
4. Pour fresh electrolyte in the bottom cap and fill to the top of the cap.
5. Keep the probe upright with the cable pointed upwards (not sideways).
Screw the bottom cap onto the upper body until hand tight.
Excess electrolyte will leak out at the joint between the probe’s
cap and upper body.
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CS511-L Dissolved Oxygen Probe
4.2 Use SCWin to Program Datalogger and Generate Wiring Diagram
The simplest method for programming the datalogger to measure the 034B is to
use Campbell Scientific’s SCWin Program Generator.
1. Open Short Cut and click on New Program.
2. Select the datalogger and enter the scan interval.
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CS511-L Dissolved Oxygen Probe
3. Select CS511 Dissolved Oxygen Probe, and select the right arrow (in
center of screen) to add it to the list of sensors to be measured, and then
select Next.
4. Define the name of the public variables and enter the calibration
multiplier. Variables default to DOmv for the millivolt measurements and
DOppm for the ppm values. The default calibration value of 0.34 is based
on an average. It is preferable to calibrate the probe using the procedure
provided in Section 7.3, Calibration. After entering the information, click
on OK, and then select Next.
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