Product Tip of the Month July 1999

Product Tip of the Month

July 1999

All Analyzers with LCD Screens

Heat Sensitivity

Since summer is upon us, it’s appropriate to mention this bit of information about the LCD (Liquid Crystal Display) screens on all ACES Systems products so equipped. The LCD is susceptible to temperature extremes, both hot and cold. Typically a unit equipped with an LCD is used in the cockpit of an airplane where summertime temperatures can reach 150^oF or higher at times. If the unit is left in the cockpit during extended periods, the LCD will become heat soaked and literally fade away! The result is that you may return to do a job and find you are unable to get the analyzer to come on. Actually it is on. You have no visual reference to verify it. The same thing will happen to any LCD, such as your digital watch, when exposed to such extremes. You might then, thinking the unit is inoperative, call ACES Systems for help. We will be glad to offer the needed assistance, but we hope you recall this Product Tip of the Month first. The good news is that the screen condition isn’t permanent. Remove the unit to a room temperature environment and allow it to cool down. The screen returns to its normal state without damage. Remember also that the screen may appear very dim or look as if the contrast needs adjusting if the temperature hasn’t reached a level necessary to fade the screen completely.

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