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 […]
When we talk about mechanical configurations we are talking about how an LCD is going to be mounted to a fixed point. The most common LCD mounting or mechanical configuration is called tabletop. This means the LCD is connected to a base which sits flat on a table. Most offices have a monitor on every […]
Just what goes into manufacturing industrial grade LCD computer monitors as opposed to a cheap off-the-shelf LCD? We at Vartech have our own set of standards concerning what can be called industrial grade. Some companies simply and cheaply reinforce the off-the-shelf brand monitors and sell them as high-end rugged, industrial monitors. At VarTech we feel […]
Optical imaging technology is a revolutionary way to interface with computers. Optical imaging touch screens use optical cameras to scan and sense a 2-dimensional ‘field’ which, when the field is interrupted by an object or fingers touch, uses complex algorithms to return a point coordinate or multiple simultaneous point coordinates which is a feature unique […]
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 […]
Interlaced video signals, such as 1080i (1080 is vertical resolution and the “i” stands for interlaced), create a picture by sequentially filling the odd-numbered lines of resolution on your screen first, followed by the even-numbered lines–all within 1/30 of a second. Progressive-scan, such as 1080p, fills all of the lines of resolution sequentially in one […]
Most digital signage gets upclose and personal with the audience. LCDs usually hang at eye level or above the audiences heads but tilting down. The number one reason a 1080p resolution True High Definition LCD is superior to the 1080i or 720p is smaller, more densely packed pixels. Because of this feature you can get […]
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