Thermal Conductivity Analyzer
Operation 4
4-21
Teledyne Analytical Instruments
Ranges that work well together are:
•
Ranges that have the same lower limits but upper limits that differ
by approximately an order of magnitude
•
Ranges whose upper limits coincide with the lower limits of the
next higher range
•
Ranges where there is a gap between the upper limit of the range
and the lower limit of the next higher range.
Range schemes that are to be avoided include:
•
Ranges that overlap
•
Ranges whose limits are entirely within the span of an adjoining
range.
Figure 4-2 illustrates these schemes graphically.
Figure 4-2: Examples of Autoranging Schemes
4.7
The
Analyze Function
Normally, all of the functions automatically switch back to the
Analyze
function when they have completed their assigned operations. Pressing the
Escape
button in many cases also switches the analyzer back to the
Analyze
function. Alternatively, you can press the
Analyze
button at any time to return
to analyzing your sample.
The
Analyze
function screen shows the impurity concentration and the
application gases in the first line, and the range in the second line. In the lower