INFICON Composer Gas Concentration Controller - Manual (Page 132)

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Composer Operating Manual
5.8 LCD Contrast Adjustment —
(LCD Display Option Only)
The LCD contrast is optimized for "above the display" viewing angles at the
factory. It may be better optimized on site for use in positions that place the
instrument in other viewing positions.
To adjust for best possible contrast in the installed position, use a potentiometer
adjustment tool or a small common flat blade screwdriver carefully inserted
through the front panel (refer to
section Figure 4-4, Optional - LCD Front Panel,
on page 4-18 ) and rotate the screw for an optimum setting.
NOTE: The potentiometer is a 10-turn type and is not harmed by rotating
continuously in either direction.