Thermo Scientific XL2 User Manual page 190

8
Advanced Settings
Safety Settings
182 Niton XL2 Analyzer User's Guide
Safety Settings Screen
The
analyzer. Each checkbox on the screen enables or disables the safety device named for purposes
of the preconditions for operation. For example, checking the Proximity Button Required
checkbox sets the engagement of the
Checking the Proximity Button Required checkbox and the Interlock Button Required
checkbox sets the engagement of both the
preconditions for operation.
Safety settings always override start-stop settings. If your safety setting requires the use of the
Proximity Button, you cannot set start-stop settings which ignore the Proximity Button. For
example, the Easy Trigger start-stop setting must have the Backscatter safety setting enabled.
While using Easy Trigger, you cannot disable Backscatter.
WARNING The backscatter sensor is enabled by default and acts as a recommended safety
feature for most applications. Some sample types, however, cannot be analyzed when this
feature is enabled. Samples that present very little mass to the analysis window, such as certain
thin films, thin layers of plastic, and very thin wires, may not be of sufficient mass to allow the
analysis to continue while backscatter is enabled. One should disable the backscatter feature
only when necessary to analyze such low mass samples, and re-enable the feature when
finished with these sample types. These samples also provide very little absorption of the
primary x-ray beam so it is typically most appropriate to analyze these samples in a test stand
when possible.
enables you to change the Method of Operation for your
Proximity Sensor
Proximity Button
as a precondition for operation.
Interlock Button
and the
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as