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HEIDENHAIN ND 1300 VED and Crosshair Systems User Manual

Page 73

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5

Probes

53

NOTE

Contrast

and

brightness can be

fine-adjusted by

one unit of con-

trast or brightness by touching

the slider bar on either side of

the slider control.

Adjusting video image contrast threshold

The contrast of an edge is shown by the height

of the gray bar on the right side of the screen

when the crosshair probe is positioned over

an edge. The contrast threshold required for

edge recognition is shown by the yellow ar-

row and must fall within the gray bar. When

the threshold adjustment is unlocked in the

VED setup screen, the contrast threshold is

increased or decreased by raising or lowering

the yellow arrow on a contrast bar.

Drag left to decrease brightness...

and right to increase brightness

Touch left to adjust down 1 unit

Touch right to adjust up 1 unit

Preparing to Use Probes

Adjust the contrast threshold by touching and sliding

the yellow arrow