Maintenance, Analysis of errors, 1 ec measurement error – Campbell Scientific CS547 Conductivity and Temperature Probe and A547 Interface User Manual
Page 16
CS547 Conductivity and Temperature Probe and A547 Interface
12
09: Z=X+F (P34)
01:
2
X Loc t
02:
-25
F
03:
3
Z Loc [(t-25).01]
10: Z=X*F (P37)
01:
3
X Loc (t-25).01
02:
.01
F
03:
3
Z Loc [(t-25).01]
11: Polynomial (P55)
01:
1
Rep
02:
3
X Loc (t-25).01
03:
4
F(X) Loc [f(t) ]
04:
.99124 C0
05:
-1.8817
C1
06:
3.4789
C2
07:
-3.51
C3
08:
-1.2
C4
09:
-43
C5
12: Z=1/X (P42)
01:
4
X Loc f(t)
02:
6
Z Loc [1/f(t) ]
13: Z=X*F (P37)
01:
6
X Loc 1/f(t)
02:
1.408
F
EC of calibration solution
03:
7
Z Loc [Act'l Con]
14: Z=X*Y (P36)
01:
7
X Loc Act'l Con
02:
1
Y Loc Rs
03:
8
Z Loc [Kc (cm-1)]
End
7. Maintenance
Routine maintenance includes thoroughly cleaning the orifice of the CS547
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
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