Accumet XL 20, User Manual, Page: 65 / 199

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Ion Setup:
Select Electrode Type / Select Measurement Units
XL25, 50 and 60 meters
Select Electrode Type
This screen lets you select the type of electrode that is specific for your ion of interest. Your
choice of electrode informs the meter which default slope to use in the calculations made for
electrode efficiency and sample concentration. Once you have selected an electrode, you will not
be required to enter the default slope numerically.
Note: the default slope value specific for the electrode that you choose is a theoretical slope value
that is used in the calculations to determine the efficiency of your electrode. This slope value is
not the slope value that is displayed in the data box of the measurement screen. You will still
need to standardize the meter using ion standards to determine the actual efficiency of your
electrode.
To select electrode type:
1. Touch the Electrode Type box to view the list of electrodes.
2. Use the scroll bar to select the desired electrode type.
Select Measurement Units
This screen lets you select the units in which the meter will report the concentration of the ion of
interest. The current units are displayed on the screen.
To select measurement units:
1. Touch the Measurement Unit box to view the list of measurement units.
2. Use the scroll bar to select the desired units.
Once the unit has been calibrated with a particular unit of measurement, if an attempt is made to
change the units, the unit comes out with a warning message: “Changing the measurement unit
will erase previous standardization. Do you wish to continue?”
Changing electrode type will erase the previous standardization.
If you are using several different electrodes, you can create a different User Profile for each
electrode to save individual parameters and calibration information (i.e. “Ammonia Samples” or
“Sodium Batch Testing”. See
‘ Appendix: Setting the XL Series Meters User Profiles’ section
for directions on how to set up a user profile.