Rockwell Automation 6159 Industrial 17 inch CRT Monitors, Series B - Manual (Page 20)

20 Industrial 17" CRT Monitor
Publication 6159-5.1
When the unit is left on for a long period, or is repositioned following
power-up, the screen may pick up additional magnetic flux, causing
colors to appear "blotchy" or otherwise distorted. For full effectiveness,
allow at least fifteen minutes between manual degaussings. Shorter
intervals may result in an incomplete removal of flux and residual color
impurities.
Note: The internal degauss will not prevent color impurities
caused by local magnetic fields. Metal enclosures can
easily become magnetized by welding and machinery
operations.
Use a hand held degaussing coil to remove residual
magnetism from the enclosure.
Note: If the unit is located near electric transformers, motors,
loudspeakers or other strong magnetic sources, degaussing
alone may not be sufficient to eliminate interference. Try
reorienting the unit relative to the magnetic source or
moving the monitor further away.
If this still does not solve the problem, contact Rockwell
Automation about magnetic shielding.
The degaussing operates for approximately five (5) seconds after
selection. In this duration, the front panel keys are not operational.
Memory Recall
Use this selection to return to the initial factory settings. A menu
displays asking if you want to return to the initial settings.
1. Display the Memory Recall adjustment box.
2. Make the appropriate selections.
•
For YES, press . This action recalls the original settings and
returns you to the main menu.
•
For NO, press . This action returns you to the main menu
without recalling the original settings.
Note: This adjustment box disappears after a 30-second
inactivity period.
3. Press the key to memorize the settings and complete the
adjustments.