Teledyne 7120 - NDIR analyzer - Manual (Page 59)

4 Operation Model 7120
4-26 Teledyne Analytical Instruments
• 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, if you leave your analyzer on MAIN MENU screen
within 5 seconds without touching any key, it will automaticaly return to analyze
function.
If the analyzer is in subfunction mode, in most cases, it will
automaticaly return to analyze mode within 10 minutes.
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
right corner, the abbreviation
Anlz indicates that the analyzer is in the Analyze
mode. If there is an * before the Anlz, it indicates that the range is linearized.
1.95 % CO2
nR1:Ø —10 *Anlz
n indicates non inverting range
i indicates inverting range