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3.2 Preparing the Meter for Calibration
For best results, select a standard value close to the sample value you are measuring.
Alternatively, use a calibration solution value that is approximately 2/3 the full-
scale value of the measurement range you plan to use. For example, in the
0 to 2000 µS/cm conductivity range, use a 1413 µS/cm solution for calibration.
Use fresh calibration standard solutions. Reuse of standard solutions may
impair calibration and accuracy of measurements. Store solutions in a dry,
dark, and cool environment when possible while limiting exposure to air.
Rinse or immerse the probe before calibration and between samples with
clean water (deionised water is ideal).
3.3 Selection of Auto or Manual Calibration (Micro 600 COND)
The Micro 600 COND is capable of automatic or manual calibration. The factory
default setting is automatic.
In the automatic calibration mode, the Micro 600 COND will automatically
select one of (4) calibration standard values (see below) depending on the
range and normalisation temperature being used.
Automatic calibration is useful when all your calibration standards fall into
one of the groups listed below. For example, if your 1413 µS/cm standard
reads as 1400 µS/cm during calibration, you would simply press "ENTER" to
accept this value using automatic mode. In manual mode, you would have
needed to press the increment button 13 times before pressing "ENTER".
Note: If you will use a calibration standard that is not listed below,
select manual calibration instead.
Normalisation Temperature
25ºC
20ºC
Table 1: Conductivity Calibration Standards for Auto Calibrations
Calibration Standards (Range)
1. 84 µS/cm (for 0 - 200 µS/cm)
2. 1413 µS/cm (for 0 - 2000 µS/cm)
3. 12.88 mS/cm (for 0.00 - 20.00 mS/cm)
4. 84 µS/cm (for 0 - 200 µS/cm)
1. 76 µS/cm (for 0 - 200 µS/cm)
2. 1278 µS/cm (for 0 - 2000 µS/cm)
3. 11.67 mS/cm (for 0.00 - 20.00 mS/cm)
4. 102.1 mS/cm (for 0.0 - 200.0 mS/cm)
Calibration
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