Campbell-scientific CS547A-L Conductivity/Temperature Probe and A547A Manuale Utente Scaricare il pdf (Pagina 21)

CS547A Conductivity and Temperature Probe and A547 Interface

11: Polynomial (P55)

1: 1 Rep

2: 3 X Loc [T25_01]

3: 4 F(X) Loc [f_of_T ]

4: .99124 C0

5: -1.8817 C1

6: 3.4789 C2

7: -3.51 C3

8: -1.2 C4

9: -43 C5

12: Z=1/X (P42)

1: 4 X Loc [f_of_T ]

2: 6 Z Loc [one_ovrfT ]

13: Z=X*F (P37)

1: 6 X Loc [one_ovrfT ]

2: 1.408 F EC of calibration solution

3: 7 Z Loc [Conductiv]

14: Z=X*Y (P36)

1: 7 X Loc [Conductiv]

2: 1 Y Loc [Rs ]

3: 8 Z Loc [Kc ]

End

7. Maintenance

Routine maintenance includes thoroughly cleaning the orifice of the CS547A

probe with the black nylon brush provided and a little soapy water. Rinse

thoroughly.

8. Analysis of Errors

8.1 EC Measurement Error

1. Bridge Measurement Error: < 1.0%

2. Calibration Error:

bridge measurement: < 0.5%

calibration solution: < 1.0%

3. Ionization Error of KCl and Na+ Solutions After Correction:

< 2.0%, 0.45 to 7.0 mS cm

-1

< 8.0%, 0.005 to 0.45 mS cm

-1

Correction of Ionization Errors: Figures 8.1-1 and 8.1-2 show the amount

of correction applied by the example program to compensate for ionization

effects on the measurements. Also shown is an ideal correction. Factors were

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Campbell-scientific CS547A-L Conductivity/Temperature Probe and A547A Manuale Utente Pagina 21