Allen-Bradley 2711P-B10C4A8, Руководство пользователя

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Rockwell Automation Publication 2711P-UM006E-EN-P - January 2017 179
Appendix
B
Outdoor Installations for High-bright Displays
Important Considerations
When using a high-bright display module outdoors, catalog number
2711P-RDT12H, there are important considerations in maximizing the field-life
of the front bezel and display:
•
Using an antiglare overlay and visor
•
Selecting the proper enclosure
• Using the proper orientation of the terminal
Ultraviolet and infrared radiation can reduce the field life of any electronic
device. While the materials used in the terminal bezels provide long field life, that
field life can be extended by proper installation.
Using an Antiglare Overlay
Ultraviolet (UV) radiation from the sun causes all plastics to fade or yellow, and
become brittle over time. Using an antiglare overlay, catalog number
2711P-RGT12, protects the front of the terminal from direct exposure to UV
radiation and increase its field life.
Using a Solar Visor If the high-bright display module is in direct sunlight during the hottest part of
the day and the external ambient temperature exceeds 40 °C (104 °F), use the
visor kit, catalog number 2711P-RVT12. The visor reduces the solar load on the
front of the display and helps to maintain temperatures within specification.
The high-bright display module has a built-in temperature sensor that
automatically reduces the backlight intensity if the temperature inside the cabinet
exceeds 55 °C (131 °F). This reduces the risk of damage to the display.
IMPORTANT
The high-bright display module is compatible only with DC-powered logic
modules, catalog numbers 2711P-RP8D, 2711P-RP8DK, 2711P-RP9D,
2711P-RP9DK. It cannot be used with AC-powered logic modules.