The higher the contrast ratio, the better the display picture, right? Maybe. By definition, contrast ratio measures the luminosity of the brightest and darkest color that an LCD can display. There are several methods used to measure a display’s contrast ratio and each of these methods can produce a wide range of results for the […]
For use in hazardous areas, equipment rated for Class 1, Division 1 and Division 2 areas is required. Class 1/Div 1 guidelines are more stringent than Class 1/Div 2. Using compliant LCD monitors, computers and workstations is absolutely necessary when any of these hazardous Class 1/Division 1 conditions exist:
Ignitable concentrations of flammable gases and vapors […]
The National Electrical Manufacturers Association created standards for electrical equipment enclosures based on the enclosures environmental capability. NEMA assigned these standards numbers and some variations having a number and a letter. For example there is NEMA 4 and NEMA 4X. Both are intended for indoor or outdoor use. Both offer protection from windblown dust and […]
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