Campbell-scientific CS547A-L Conductivity/Temperature Probe and A547A Instrukcja Użytkownika Pobierz pdf (Strona 15)

CS547A Conductivity and Temperature Probe and A547 Interface

;

;Subtract resistance errors (Rp) caused by the blocking capacitors

;(0.005Kohm) and the cable length (0.000032kohm/ft). Enter cable lead

;length in nnn below.

;

17: Z=F (P30)

1: nnn F Enter cable length in feet.

2: 00 Exponent of 10

3: 5 Z Loc [ Rp ]

18: Z=X*F (P37)

1: 5 X Loc [ Rp ]

2: .00032 F

3: 5 Z Loc [ Rp ]

19: Z=X*F (P37)

1: 5 X Loc [ Rp ]

2: -.1 F

3: 5 Z Loc [ Rp ]

20: Z=X+F (P34)

1: 5 X Loc [ Rp ]

2: -.005 F

3: 5 Z Loc [ Rp ]

21: Z=X+Y (P33)

1: 1 X Loc [ Rs ]

2: 5 Y Loc [ Rp ]

3: 1 Z Loc [ Rs ]

;EC is then calculated by multiplying the reciprocal of resistance,

;which is conductance, by the cell constant.

NOTE: The cell constant (Kc) is printed on the label of each sensor or it can be calculated (see

Section 6.4). It is entered in place of nnn below.

22: Z=1/X (P42)

1: 1 X Loc [ Rs ]

2: 2 Z Loc [ one_ovrRs ]

23: Z=X*F (P37)

1: 2 X Loc [ one_ovrRs ]

2: nnn F Enter cell constant.

3: 3 Z Loc [ Ct ]

;

;The following program set corrects for errors of ionization in the EC

;measurement.

;

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Campbell-scientific CS547A-L Conductivity/Temperature Probe and A547A Instrukcja Użytkownika Strona 15