SEP 2005 MODEL 1000
OPERATION FROM LOCAL KEYPAD AND DISPLAY
4-4
4.1.2 Liquid Crystal Display (LCD)
The LCD measures 5.5 x 2 inches and is capable of 64 by 256 resolution, with full graphics. It is
certified for use with an explosion-proof NEMA 4X, Class C and D, enclosure. The display is
capable of producing the complete alphabet and numbers from the keypad. The video display on the
Controller may show a truncated (or curtailed) version of the displays available at the PC.
To adjust the contrast and backlighting of the screen while logged out:
Press these keys:
NEXT key Reset contrast and backlighting to default values
UP ARROW key Increase contrast
DOWN ARROW key Decrease contrast
LEFT ARROW key Increase backlighting, and
RIGHT ARROW key Decrease backlighting
To log out if the Main Menu screen is displayed:
Press the ESC key.
4.1.3 Keypad
The front panel keypad on the Controller is arranged so that the most-used keys may be pressed
directly. These are the numeric keys, the ESC, NEXT, BKSP, ENTER, period (.) and (8) (9) keys.
The other keys are obtained by pressing ALT and the desired letter or symbol on the lower half of
the key. For instance, to obtain capital A, press ALT while simultaneously pressing the A key. To
obtain capital B, hold down ALT and press B twice. Although not shown on the keypad, the small
letter b may be obtained by holding down ALT and pressing B five times. All letters of the alphabet
may be obtained by similar actions. The other functions or symbols shown on the lower half of the
keys are obtained similarly. The numerical keys, the period (.) the dash or minus (-) and the function
keys are used to enter data values or to issue instructions to the Controller/Analyzer. (See Figure 4-2
and Table 4-2.)
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