Planar Bay Cat X SN-4620-1080 User Manual page 141

• Multiple displays are mounted close together in an
array. Heat from the lower displays rises and creates a
thermal ambient air gradient on the back of the displays
that goes from cool to hot (bottom to top). Displays at
the top of the array experience a higher ambient tem-
perature and overheat.
Should the thermal ratings be exceeded, the most likely
visible affect will be that the display may start to 'clear'
which means the LC material within the display starts to
lose its light altering properties and off-color or black voids
will start to be visible in the display. This is not destructive
to the display and will correct itself once the thermal issue
is adequately addressed.
WARNING
Chronic overheating may shorten the unit
lifespan and void your warranty.
In each case, either moving the display away from a heat
or light source, providing shielding from that source, or
providing additional ventilation to ensure against heat
buildup should be sufficient to address the thermal issue.
A built-in thermal sensor on the display electronics (see
"Internal Temperature" on page 98) which can be moni-
tored in the UI and through RS232. While not directly cor-
relating to the ambient temperature, it can be used to
determine if changes to the display's environment have had
a positive or negative effect. It can also be used to thermally
map a large group of displays to determine if some are run-
ning significantly warmer or cooler than the others.
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