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12
Calculating Temperature Coefficients
To determine the temperature coefficient of your sample solution use this formula:
t
= 100 x
c
Where:
t
= Temperature coefficient
c
C
= Conductivity at Temp 1
T 1
T
= Temp 1
1
NOTE: A controlled temperature water bath is ideal for this procedure.
1 Immerse the probe into a sample of your solution and adjust the
temperature coefficient to 0% (that is, no compensation) by following
instructions as described in Section 6.5 - Temperature Coefficient.
2 Wait for 5 minutes. Note T
3 Condition the sample solution and probe to a temperature (T
5°C to 10°C different from T
NOTE: Record your results for future reference. Ideally T
should bracket your measurement temperature, and should not
differ by more than 5°C.
4 Calculate the temperature coefficient of your solution according to the
formula shown above.
5 Enter the calculated temperature coefficient into the meter.
See Section 5.5 - Temperature Coefficient.
The calculated temperature coefficient will now be applied to all the meter readings.
3
C
- C
T2
T1
C
(T
- 25) - C
(T
T1
2
T2
and C
1
, and note the conductivity reading C
1
- 25)
1
25 = 25°C
C
= Conductivity at Temp 2
T 2
T
= Temp 2
2
(conductivity at T
T1
).
1
) that is about
2
.
T2
and T
1
2
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