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Campbell Scientific CS512 Oxyguard Type III Dissolved Oxygen Probe 

7.  Programming 

In the CR510, CR10X, and CR23X datalogger, Instruction P1 or P2 can be used.  
Example 1 uses a single-ended measurement for the CS512 probe; example 2 uses 
a differential measurement.  The example measurement instructions that follow do 
not store data to final storage.  Additional instructions (typically P92, P77, and 
output processing instructions such as P70) are required to store data permanently. 

EXAMPLE 1.  Sample Program using P1 

1:  Volt (SE) (P1) 
 1:  1 

 Reps 

  2:  24 

  250 mV 60 Hz Rejection Range 

; code 23 used for CR23X

 

 3:  1 

 SE 

Channel 

  4:  1 

  Loc [ DOmV      ] 

 5:  1.0 

 Multiplier 

*See 

Calibration* 

 6:  0.0 

 Offset 

 

EXAMPLE 2.  Sample Program using P2 

1:  Volt (Diff) (P2) 
 1:  1 

 Reps 

  2:  24 

  250 mV 60 Hz Rejection Range 

; code 23 used for CR23X

 

 3:  1 

 DIFF 

Channel 

  4:  1 

  Loc [ DOmV      ] 

 5:  1.0 

 Multiplier 

*See 

Calibration* 

 6:  0.0 

 Offset 

 
In the CR1000, CR800, CR850, and CR3000 dataloggers, instruction VoltDiff 
or VoltSE is used to measure the CS512 probe. 

EXAMPLE 3.  Sample Program using VoltSE 

VoltSE (DOmV,1,mV250,1,1,0,_60Hz,1.0,0) 

 

EXAMPLE 4.  Sample Program using VoltDiff 

VoltDiff (DOmV,1,mV250,1,True ,0,_60Hz,1.0,0) 

 
In the CR200 series dataloggers, only the instruction VoltSE is used to 
measure the CS512 probe. 

EXAMPLE 5. Sample Program using VoltSE. 

VoltSE (DOmV,1,1,1.0,0) 

 

Содержание CS512 OXYGUARD TYPE III

Страница 1: ...Campbell Scientific CS512 Oxyguard Type III Dissolved Oxygen Probe Revision 12 06 C o p y r i g h t 2 0 0 1 2 0 0 6 C a m p b e l l S c i e n t i f i c I n c ...

Страница 2: ...eu of all other warranties expressed or implied including warranties of merchantability or fitness for a particular purpose CAMPBELL SCIENTIFIC INC is not liable for special indirect incidental or consequential damages Products may not be returned without prior authorization The following contact information is for US and International customers residing in countries served by Campbell Scientific ...

Страница 3: ...nformation 1 2 Specifications 2 3 Optional Probe Accessories 3 4 Optional Agitator 3 5 Application Information 4 6 Wiring 4 7 Programming 5 8 Calibration 6 9 Maintenance 7 10 Agitator Control 7 Appendix A Dissolved Oxygen in Fresh Water Table A 1 Figures 1 1 CS512 1 4 1 Preventing Bio fouling of the CS512 3 4 2 CS512 with PT4 Agitator 4 10 1 Agitator Wiring 7 Table 6 1 Sensor Wiring 4 ...

Страница 4: ...g P2 5 3 Sample Program using VoltSE 5 4 Sample Program using VoltDiff 5 5 Sample Program using VoltSE 5 6 Sample Program using P36 6 7 Sample Program using Expression 6 8 Sample Program using P86 and P22 Instructions 8 9 Sample Program using Portset 8 10 Sample Program using Portset 8 ...

Страница 5: ...s the probe produces a millivolt output proportional to the oxygen present in the medium in which it is placed The probe consists of two parts an upper part with cathode anode and cable and a lower part comprising a screw on membrane cap with fitted membrane The cap is filled with electrolyte and simply screwed onto the top component The probe is self polarizing and requires no external power sour...

Страница 6: ...lrin Membrane O ring Buna N Body Seal O ring Viton 0 05 mm 2 mil Teflon Dimensions and Weight 2 28 diameter x 2 3 height 15 9 oz Cable standard length 7 m 23 ft other lengths available upon request 2 wire 22 awg shielded PVC jacketed Operating Conditions Temperature Pressure Minimum Submersion Depth Minimum Water Flow 0 to 40 C 32 to 122 F 0 to 29 psig 60 mm 2 in 1 cm s 39 in sec across membrane C...

Страница 7: ...ces the water also has a high bio loading and the probes become fouled resulting in inaccurate DO measurements FIGURE 4 1 Preventing Bio fouling of the CS512 The PT4 Agitator overcomes these problems The device is designed so that a soft bristle brush sweeps across the probe membrane or sensor tip This sweeping action of the brush provides the required water velocity as well as prevents the membra...

Страница 8: ...pplication Information SCWin users This manual was written primarily for those whose needs are not met by SCWin Your procedure is much simpler just add the CS512 probe it s in the water folder save your program and follow the wiring shown in Step 2 of SCWIN 6 Wiring The CS512 probe can use one differential channel or one single ended channel Differential wiring is better at rejecting electrical no...

Страница 9: ...V 60 Hz Rejection Range code 23 used for CR23X 3 1 SE Channel 4 1 Loc DOmV 5 1 0 Multiplier See Calibration 6 0 0 Offset EXAMPLE 2 Sample Program using P2 1 Volt Diff P2 1 1 Reps 2 24 250 mV 60 Hz Rejection Range code 23 used for CR23X 3 1 DIFF Channel 4 1 Loc DOmV 5 1 0 Multiplier See Calibration 6 0 0 Offset In the CR1000 CR800 CR850 and CR3000 dataloggers instruction VoltDiff or VoltSE is used ...

Страница 10: ...sing a multiplier of one 6 Change the multiplier in the datalogger program from one to the calculated number A more common way to enter the multiplier is to insert a separate instruction in the program This will allow a new multiplier to be added to the program without rewriting compiling and downloading the program to the data logger In the CR510 CR10X and CR23X use Instruction P36 The multiplier...

Страница 11: ...epeat 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 Agitating just before the measurement saves on power and causes less wear and tear on the agitator and probe membrane The wiring for the agitator as controlled by this ...

Страница 12: ...set instruction EXAMPLE 9 Sample Program using Portset Portset 1 1 Delay 500 msec Portset 1 0 In the CR1000 CR800 CR850 and CR3000 dataloggers use the Portset instruction EXAMPLE 10 Sample Program using Portset Portset 1 1 Delay 1 500 msec Portset 1 0 The above example is not as power efficient as possible and would require AC power to maintain a sufficient battery charge If it is necessary to ope...

Страница 13: ...A 1 Appendix A Dissolved Oxygen in Fresh Water Table ...

Страница 14: ...Appendix A Dissolved Oxygen in Fresh Water Table A 2 ...

Страница 15: ...This is a blank page ...

Страница 16: ...w campbellsci com br suporte campbellsci com br Campbell Scientific Canada Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Ltd CSL Campbell Park 80 Hathern Road Shepshed Loughborough LE12 9GX UNITED KINGDOM www campbellsci co uk sales campbellsci co uk Campbell Scientific Ltd France Miniparc du Verger Bat H 1 rue de T...

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