3-14 P/N 9-500-0255
Service Manual
Chapter 3: Functional Checks/Setting Defaults
Setting Exposure Technique Defaults
• mAs—Large FS, 3 to 500 mAs; Small FS, 3 to 150 mAs; manual exposures
require that the user set a fixed mAs for exposure timing.
• Density—+5 to Normal to -5 (not available in Manual or Mag Manual modes)
• Screen Film—Film 1, Film 2, Film 3
• Focus—Large or Small Focal Spot
• Auto-kV Window—When the exposure mode is set to Auto-kV or Auto-Filter the
system determines the exposure factors necessary to make films at the optimum
optical density, with ideal contrast. To do this, the user must set a timing “win-
dow” that determines when to terminate the exposure. The timing window
choices for Large FS are 125, 165, or 200 mAs and the choices for Small FS are
38, 50, or 60 mAs. The Auto timing window (based on breast thickness) should
be selected by those users who are required to meet the 2 mGy (200 mrad) max-
imum average glandular dose requirement.
• Default Exposure Mode—Displays default mode that unit is set to upon power
up.
• Default Mag Mode—Displays default mode when a magnification device is
installed.
• Filter—Upon start up, Filter is always set to Molybdenum, user can change set-
ting to Rhodium.
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