Teledyne LXT-220 - Manual (Page 25)

Dissolved Oxygen Controller Operation
Teledyne Analytical Instruments 25
There may be additional menus not shown in Figure 3-1 depending
on the options you selected.
Figure 3-1: Available Menus and Submenus
In this manual, screens with a gray background are related to
dissolved oxygen measurement or control while white background
screens relate to a second channel process, for instance, ORP related
screens. When there is only one gray screen the information applies to
both process applications, for example, the contrast screen discussed
next adjusts the contrast for all screens.
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
the same for all LXT-220 controllers and is always located as the
uppermost menu. To access this menu from the Main Menu, press the
▲ MENU SELECT key.
Contrast 50
Contrast Menu