Emerson Rosemount 2230 Reference Manual page 64

Configuration and operation
March 2021
4.7.5 Open the LCD test view
In the LCD test two checkered patterns will be displayed testing the whole display area.
Procedure
In View Mode, press Menu → Service → LCD Test.
After the test is completed, the display will return to normal View Mode.
64
Reference Manual
00809-0100-2230
Reference Manual