System Check Menu Path; Setting Element Ranges - Thermo Scientific XL2 User Manual

3
How to Analyze
General Analysis
26 Niton XL2 Analyzer User's Guide
Figure 7.

System Check Menu Path

Thermo Scientific Niton XL2 analyzers are equipped with excitation filters that optimize the
analyzers' sensitivity for various elements. The "Main Range" filter provides optimum
sensitivity for the elements manganese (Mn) through bismuth (Bi). The "Low Range" filter is
used to optimize the sensitivity for the elements from titanium (Ti) through chromium (Cr).
Note that the main range filter can be used to analyze Ti, V and Cr, but the sensitivity is not
as good as when using the low filter. The "Light Range" filter is available only with He-purged
and GOLDD technology analyzers, and is typically used in light element analysis. The
amount of time that the analyzer spends in each filter position is user definable, but the
default settings should be used unless there is reason to change them. Please note that the
analyzer will continue alternating excitation filters until the user selectable maximum analysis
time is reached or the operator terminates the measurement.
Figure 8.

Setting Element Ranges

Verify instrument measurement accuracy using the supplied reference material (RM) supplied
with the analyzer.
Test the factory-supplied reference standard (or other approved check sample) based on a 30s
measurement using main range filter only. If the sample is correctly identified and all major
elements read within calculated acceptance limits (within the low and high values of factory
readings found on the QC sheet, proceed to General Testing Protocol section
If the analyzer reports values outside the acceptance tolerance ranges specified in the tables,
repeat the detector calibration then repeat the reference sample analysis.
If the analyzer again fails to meet the acceptance tolerance ranges specified in the tables, please
contact Thermo Scientific Niton Analyzers or your local representative for assistance.
Thermo Scientific