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of the calibration solution at 25°C (77°F),
i.e.:
80.0 mS using HI7034 with HI943500A
12.88 mS using HI7030 with HI943500B
1413 µS using HI7031 with HI943500C
84.0 µS using HI7033 with HI943500D
• The calibration is now complete and the
instrument is ready for use. All subse-
quent measurements will now be compen-
sated to 25°C (77°F).
• If the instrument will not calibrate refer to
the Probe Maintenance and Cleaning sec-
tion (see page 46).
40
CONDUCTIVITY VERSUS
TEMPERATURE CHART
°C
°F
HI7030 HI7031 HI7033 HI7034 HI7035
(µS/cm)
(µS/cm) (µS/cm)
0
32
7150
776
64
5
41
8220
896
65
10
50
9330
1020
67
15
59
10480
1147
68
16 60.8 10720
1173
70
17 62.6 10950
1199
71
18 64.4 11190
1225
73
19 66.2 11430
1251
74
20
68
11670
1278
76
21 69.8 11910
1305
78
22 71.6 12150
1332
79
23 73.4 12390
1359
81
24 75.2 12640
1386
82
25
77
12880
1413
84
26 78.8 13130
1440
86
27 80.6 13370
1467
87
28 82.4 13620
1494
89
29 84.2 13870
1521
90
30
86
14120
1548
92
31 87.8 14370
1575
94
If you are calibrating a HI 8931A or
HI 943500A using HI 7030 (12.88 mS/cm
@25°C) as buffer solution, turn the SLOPE
trimmer to display "12.88 mS", with a ref-
erence temperature of 25°C (77°F).
If you prefer a reference temperature of
20°C (68°F), turn the SLOPE trimmer to
display "11.67 mS".
41
HI7039
(µS/cm)
(µS/cm)
(µS/cm)
48300
65400
2760
53500
74100
3180
59600
83200
3615
65400
92500
4063
67200
94400
4155
68500
96300
4245
69800
98200
4337
71300 100200
4429
72400 102100
4523
74000 104000
4517
75200 105900
4711
76500 107900
4805
78300 109800
4902
80000 111800
5000
81300 113800
5096
83000 115700
5190
84900 117700
5286
86300 119700
5383
88200 121800
5479
90000 123900
5575
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