Emerson Rosemount 700XA Reference Manual page 198

Local operator interface (LOI)
June 2022
A.1.1 LED indicators
There are three LED status indicators on the local operator interface (LOI) that show the
overall status of the gas chromatograph (GC). These LEDs are positioned to the right of the
display screen. Each LED, when lit, indicates a specific condition.
A.1.2 LCD display screen
The LCD display screen measures 4.4 by 3.3 in. (111.4 x 83.5 mm) and is capable of 640 by
480 VGA pixel resolution, supporting both text and full graphics.
The backlighting, boost, and brightness are all under software control. The boost and
brightness levels are user-adjustable.
A.1.3 Keypad
The keypad consists of eight infrared keys.
Command keys
The four keys located above the LCD display screen are command keys.
Related information
Navigating the screens
Arrow keys
The four keys below the LCD display screen are arrow keys that allow you to navigate
within the screen by scrolling or moving the cursor from field to field. These keys function
in the same way as a computer keyboard's arrow keys.
198
The GC is currently running an analysis.
The GC has at least one unacknowledged alarm.
The GC has an out-of-tolerance or alarm condition that requires
an operator action.
Reference Manual
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