palintest Micro 600 COND, Руководство пользователя

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12
Calculating Temperature Coefficients
30
To determine the temperature coefficient of your sample solution use this formula:
t
c
= 100 x
C
T2
- C
T1
C
T1
(T
2
- 25) - C
T2
(T
1
- 25)
Where:
t
c
= Temperature coefficient 25 = 25°C
C
T1
= Conductivity at Temp 1 C
T2
= Conductivity at Temp 2
T
1
= Temp 1 T
2
= Temp 2
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
1
and C
T1
(conductivity at T
1
).
3 Condition the sample solution and probe to a temperature ( T
2
) that is about
5°C to 10°C different from T
1
, and note the conductivity reading C
T2
.
NOTE: Record your results for future reference. Ideally T
1
and T
2
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.