Campbell Scientific CS547A-L Conductivity/Temperature Probe and A547A Interface - Manual (Page 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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