Conductivity / Resistivity Operation - Fisher Scientific accumet XL150 accumet XL200 accumet XL250 accumet XL500 accumet XL600 Reference Manual

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CONDUCTIVITY / RESISTIVITY OPERATION

Standard Recognition:
This setup option shows the conductivity standards available for auto standard recognition. If Manual
standard recognition is selected, the area will be blank.
From Conductivity Setup icon, select AUTO to automatically recognize (84µS, 1.413mS, 12.88mS, or
111.8mS) values during standardization. If you will only use one or more of the (4) calibration standards
listed here, automatic calibration is recommended. Otherwise, manual calibration should be selected. The
factory default is automatic conductivity calibration. Select MANUAL to manually enter the conductivity
value of your standard during standardization.
Single Point: Standardization will apply a single standard to all ranges.
Multi Point: Standardization will apply a single standard to an individual range. When using a Multi Point
Standardization, perform standardization in each range that you expect to use for best results.
Range 1:
Range 2:
Range 3:
Range 4:
Cell Constant:
Select the nominal cell constant of the conductivity electrode you are using. There are three cell constants
to choose from. Each is used for a different range. The following indicates the optimal conductivity range
for the accumet conductivity cells. For resistivity measurements, an electrode having a nominal 0.1 cell
constant (13-620-101 or equivalent) is recommended.
Cell Constant
Conductivity (/cm)
0.000 µS – 199.9 µS
200.0 µS – 1.999 mS
2.000 mS – 19.99 mS
20.00 mS – 500.0 mS
0.1 0.5 to 200 µS/cm
1.0 0.01 to 2 mS/cm
10.0 1 to 200 mS/cm
Resistivity (/cm)
0.000 Ω – 19.99 kΩ
20.00 kΩ – 199.9 kΩ
200.0 kΩ – 1.999 MΩ
2.000 MΩ & above
2-Cell
Not Available
0.01 to 20 mS/cm
1 to 200 mS/cm
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4-Cell