Accumet XL 20 User Manual
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Contents
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54Ion Setup: Select Electrode Type / Select Measurement UnitsXL25, 50 and 60 metersSelect Electrode TypeThis screen lets you select the type of electrode that is specific for your ion of interest. Yourchoice of electrode informs the meter which default slope to use in the calculations made forelectrode efficiency and sample concentration. Once you have selected an electrode, you will notbe required to enter the default slope numerically.Note: the default slope value specific for the electrode that you choose is a theoretical slope valuethat is used in the calculations to determine the efficiency of your electrode. This slope value isnot the slope value that is displayed in the data box of the measurement screen. You will stillneed to standardize the meter using ion standards to determine the actual efficiency of yourelectrode.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 UnitsThis screen lets you select the units in which the meter will report the concentration of the ion ofinterest. 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 tochange the units, the unit comes out with a warning message: “Changing the measurement unitwill 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 eachelectrode to save individual parameters and calibration information (i.e. “Ammonia Samples” or“Sodium Batch Testing”. See ‘Appendix: Setting the XL Series Meters User Profiles’ sectionfor directions on how to set up a user profile. |
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