Teledyne LXT-280 User Manual
Page 13

Dissolved Oxygen Transmitter
Introduction
Teledyne Analytical Instruments
3
appropriate magnetic switch. The LXT-280 uses an "underline" cursor in
each of the menus.
Figure 1-1 shows the user interface for the LXT-280 instrument.
The interface includes the LCD display capable of outputting
alphanumeric information in 2 rows of 16 characters per row and 4
magnetic switch arrow keys that control the operation of the unit.
Figure 1-1: LXT-280 User Interface
The keys are in two groups:
VERTICAL UP/DOWN (▲/▼) Arrow Keys
• These keys are used to change the display menu.
• They also move the cursor vertically. Any menu can be
accessed by magnetically activating the appropriate UP or
DOWN key
• These keys also perform numeric adjustments to display
values while in the calibrate mode. Magnetically activating
the up vertical arrow key will increase the value or
magnetically activating the down vertical arrow key will
decrease the value.
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