Ec Values At Various Temperatures; Probe Maintenance - Hanna Instruments HI 710 Series Instruction Manual

EC VALUES AT VARIOUS TEMPERATURES

Temperature has a significant effect on conductivity. Table
below shows EC values at various temperatures for the Hanna
calibration solutions.
TEMPERATURE
°C °F
0 32
5 41
10 50
15 59
16 60.8
17 62.6
18 64.4
19 66.2
20 68
21 69.8
22 71.6
23 73.4
24 75.2
25 77
26 78.8
27 80.6
28 82.4
29 84.2
30 86
31 87.8
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EC VALUES (μS/cm)
HI7030 HI7031 HI7033 HI7034 HI7035
HI8030 HI8031 HI8033 HI8034 HI8035
7150 776 64 48300 65400
8220 896 65 53500 74100
9330 1020 67 59600 83200
10480 1147 68 65400 92500
10720 1173 70 67200 94400
10950 1199 71 68500 96300
11190 1225 73 69800 98200
11430 1251 74 71300 100200
11670 1278 76 72400 102100
11910 1305 78 74000 104000
12150 1332 79 75200 105900
12390 1359 81 76500 107900
12640 1386 82 78300 109800
12880 1413 84 80000 111800
13130 1440 86 81300 113800
13370 1467 87 83000 115700
13620 1494 89 84900 117700
13870 1521 90 86300 119700
14120 1548 92 88200 121800
14370 1575 94 90000 123900

PROBE MAINTENANCE

PERIODIC MAINTENANCE
HI7039
HI8039
2760
3180
CLEANING PROCEDURE
3615
4063
4155
4245
4337
4429
4523
4617
4711
4805
4902
5000
5096
5190
5286
5383
5479
5575
Probe can be compensated for normal contamination by a
process of recalibration. When calibration can no longer be
achieved, remove the conductivity probe from the system for
maintenance.
Inspect the probe and the cable. The cable used for the con-
nection to the controller must be intact and there must be no
points of broken insulation on the cable.
Connectors must be perfectly clean and dry.
Rinse the probe with tap water. If a more thorough cleaning
is desired, remove the sleeve and clean the platinum sensors
with a non-abrasive cloth or HI7061 cleaning solution. Re-
insert the sleeve in the same direction as before.
Recalibrate the instrument before reinserting the probe in the
system.
Note Always recalibrate the instrument when attaching a new probe.
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