GE_OEC_9600_C-Arms

Image System Calibration 11
CONFIRM MONITOR SIZE & LINEARITY
1. Confirm the left and right monitors are adjusted correctly, referring to Figure 9, by
measuring the following size specification:
• 5" (± 0.125) from the center to the horizontal & vertical edges
NOTE: The monitor CRT curves and is not flat. The measuring viewpoint must
therefore be perpendicular to the monitor screen.
"B"
5"
5"
"A"
Figure 9 - Image Size Measurement
2. Also verify the vertical linearity of the monitors by measuring the largest distance
between the vertical lines (A), and the smallest distance between the vertical lines
(B). The distance should be approximately 1 inch between each line. Calculate the
Linearity Error using the following formula:
A - B X 100% Linearity error must be less than 10%.
A
NOTE: IF THE MONITORS ARE WITHIN SPECIFICATIONS, proceed to the Adjust
Camera Focus portion of this procedure. IF THE MONITORS ARE NOT
WITHIN SPECIFICATIONS, adjust the monitors by continuing to Step 3.