Hach 900 MAX Instrument Manual page 80

Section 5
Note: Conductivity temperature
calibration is only necessary when
logging temperature.
Table 12 Conductivity Values at Temperature for Hach KCl Solution
Solution Calibration Value
Temp °C to be Entered
30
29.8
29.6
29.4
29.2
29
28.8
28.6
28.4
28.2
28
27.8
27.6
27.4
27.2
27
26.8
26.6
26.4
26.2
26
25.8
25.6
25.4
25.2
Page 78
Conductivity Probe
c. If the calibration temperature is lower than the labeled value, then
subtract that value from the standard (1.0 mS) to get the actual value
to be used for calibration.
d. If the calibration temperature is higher than the labeled value, then
add that value to the standard (1.0 mS) to get the actual value to be
used for calibration.
7. Using the value that was calculated in step 6, enter the conductivity of the
solution then press
Calibrating the Conductivity Temperature
1. Place the probe in a liquid and wait for the temperature reading
to stabilize.
2. Enter the actual temperature of the liquid (the current reading is shown for
reference). Temperature calibration is complete.
Solution
Temp °C
1.099 25
1.095 24.8
1.091 24.6
1.087 24.4
1.083 24.2
1.079 24
1.075 23.8
1.071 23.6
1.067 23.4
1.063 23.2
1.059 23
1.055 22.8
1.051 22.6
1.047 22.4
1.043 22.2
1.039 22
1.035 21.8
1.032 21.6
1.028 21.4
1.024 21.2
1.020 21
1.016 20.8
1.012 20.6
1.008 20.4
1.004 20.2
1.0 mS - (correction factor) 0.13002 = 0.86998 mS
to complete the calibration.
ACCEPT
Calibration Value
to be Entered
1.000
0.996
0.992
0.988
0.984
0.980
0.976
0.972
0.968
0.965
0.961
0.957
0.953
0.949
0.945
0.941
0.937
0.933
0.929
0.925
0.921
0.917
0.913
0.909
0.905
Solution Calibration Value
Temp °C to be Entered
20 0.902
19.8 0.898
19.6 0.894
19.4 0.890
19.2 0.886
19 0.882
18.8 0.878
18.6 0.874
18.4 0.870
18.2 0.866
18 0.862
17.8 0.858
17.6 0.854
17.4 0.850
17.2 0.846
17 0.842
16.8 0.838
16.6 0.835
16.4 0.831
16.2 0.827
16 0.823
15.8 0.819
15.6 0.815
15.4 0.811
15.2 0.807
8990options.fm