Yokogawa EXAxt SC450 4-Wire Analyzer for Conductivity/Resis Uživatelský manuál stáhnout pdf (Strana 60)

IM 12D08N05-01E

Ifitismoreconvenient,theusermaymakesolutionsfromSodiumChloride(NaClorcommon

table salt) with the help of the following relationship table. This table is derived from the IEC norm

60746-3.

Table 11-3. NaCl values at 25 °C

Weight % mg/kg Conductivity

0.001 10 21.4 µS/cm

0.003 30 64.0 µS/cm

0.005 50 106 µS/cm

0.01 100 210 µS/cm

0.03 300 617 µS/cm

0.05 500 1.03 mS/cm

0.1 1000 1.99 mS/cm

0.3 3000 5.69 mS/cm

0.5 5000 9.48 mS/cm

1 10000 17.6 mS/cm

3 30000 48.6 mS/cm

5 50000 81.0 mS/cm

10 100000 140 mS/cm

Note!

Forresistivitymeasurementthestandardresistivityunitsofthecalibrationsolutioncanbecalcu-

lated as follows:

R=1000/G(kΩ•cmifG=µS/cm)

Example:0.001%weight R=1000/21.4=46.7kΩ•cm

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 70 71

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Yokogawa EXAxt SC450 4-Wire Analyzer for Conductivity/Resis Uživatelský manuál Strana 60