Teledyne 2000A-EU - General purpose thermal conductivity analyzer User Manual

Page 59

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