Locking the contrast threshold, Enabling axis-zeroing on the video dro, Enabling user access to magnification calibrations – HEIDENHAIN ND 1300 VED and Crosshair Systems User Manual
Page 275: Ved screen

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Setup
Locking the contrast threshold
When the contrast threshold adjustment is unlocked, the user can change
the contrast threshold requirement for edge detection by touching and
sliding the yellow arrow up or down the contrast bar on the right side of
the LCD. Locking the contrast threshold prevents users from adjusting
the contrast threshold on the LCD screen.
To lock the con-
trast threshold,
touch the Lock Contrast Threshold
choice field to toggle the choice to
Yes.
Enabling axis-zeroing on the video DRO
Measurement axes can be zeroed from the DRO screen at
any time by touching an axis Zero button.
As a convenience to the user, the small video DRO display
can also be configured to include axis zero bars on the LCD
video screen.
To enable axis-zeroing from the video DRO, touch the Allow Zeroing on the DRO
choice field to toggle the
choice to Yes.
Enabling user access to magnification calibrations
Normally, video magnification calibrations are performed by supervisors,
distributors and OEMs. However, the magnification calibration tools
located on the Magnification setup screen can also be made available
to users.
Touch the Allow
User Teach choice
field to toggle the choice to Yes to
provide user access to the calibration
tools.
Contrast threshold adjustment on
the LCD Video screen
Cannot be
adjusted
Axis
zero but-
tons
Axis zero bar on
LCD Video screen
Magnification
calibration tools
Magnification setup screen
VED Screen