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Instruction Manual CON 6/TDS 6

15 ADDENDUM 3: CALCULATING TEMPERATURE

COEFFICIENTS

To determine the temperature coefficient of your sample solution use this

formula:

Where:

tc = Temperature coefficient 25 = 25 °C

= Conductivity at Temp 1 C

= Conductivity at Temp 2

= Temp 1 T

= 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

and C

(conductivity at T

3. Condition the sample solution and probe to a temperature (T

) that is about

5 °C to 10 °C different from T

, and note the conductivity reading C

NOTE: Record your results for future reference. Ideally T

and T

should

bracket your measurement temperature, and should not different by

more than 5 °C.

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