Teledyne LXT-280 - Manual (Page 23)

Dissolved Oxygen Transmitter Operation
Teledyne Analytical Instruments 13
From the main menu, you can scroll up (▲) to the Contrast menu
or down (▼) through the available menus for your transmitter.
.
Figure 3-2: Available Menus
In this manual, gray screens apply to dissolved oxygen in percent
instruments while white screens apply to dissolved oxygen in ppm
instruments. When only one screen is illustrated, the screen is applicable
to both instruments.
3.2.1 Contrast
Display contrast can be adjusted to allow for variations of ambient
lighting and viewing angle by using this menu. The Contrast Menu is
always located as the uppermost menu. To access the contrast menu
from the Main Menu, magnetically activate the UP vertical arrow key
once.
Contrast 50