Emerson Rosemount CT4400, Reference Manual

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4.3 Display controller
Operation of the analyzer is controlled primarily through the display controller ( Figure 4-3 ,
A).
Figure 4-3: Front Panel Display Controller
A. LCD display
B. Navigation buttons
The LCD display (A) can be used to display:
• Gas concentration measurements obtained.
• Operating temperature and pressure.
• Help screens.
• Step-by-step calibration.
• Diagnostics.
The navigation buttons (B) are configured to perform different functions according to
which software screen is shown on the LCD display.
Table 4-1: Display Controller Navigation Button Functions
Button Description
Normally used to scroll up. Referred to as UP .
Normally used to scroll down. Referred to as DOWN .
Normally used to select. Also accesses the Main Menu from the Home
screen. Referred to as RIGHT .
Used to go back to the previous screen. No function from the Home
screen. Referred to as LEFT .
Used to return to the Home screen.
Reference Manual Operating the analyzer
00809-0100-4244 January 2020
Reference Manual 35