Hologic DISCOVERY A, Technical Manual

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Discovery QDR Series Technical Manual
9-2
1. The Main Display shows either a bar-graph or numeric fields for each detector
depending on which Display button is selected.
2. The Display Controls that affect the data shown in the main display. Not all con-
trols are used by the field engineer.
3. The Close button which exits the utility.
9.1.2 The Main Display
The Main Display provides data in two forms depending upon which display button is
selected.
Figure 9-2. The Main Display Controls
When the Graph button is active and the system is producing X-Rays, the data is
presented in a bar graph (see Figure 9-3). Scale markings on the bottom of the graph
indicate detector numbers. Scale markings aling the sides indicate the numeric value of the
column height. A label alone the left half of the graph indicates which numeric value for
the column is being displayed (for field engineering purposes this will always be Volts). A
label above the right half of the graph indicates which drum segment is being displayed
(for feild engineering purpose this will always be Air Segment). The bar grapg shaded
green is the hi voltage, the bar graph shaded brown is lo voltage.
AW-00335_001-0902