Although best known for it’s powerful graphics workstations and massive servers, SGI regularly produces related pieces of high technology. Back in 1998, SGI gave the display industry a boost by introducing the ground breaking 1600SW display.

The Silicon Graphics 1600SW is a LCD display with a resolution of 1600×1024. It was, and remains, the only display to offer a full 16:10 aspect ratio, allowing detailed work for digital effects artists, as well as being able to display two A4 pages of text side by side. The 1600SW won several awards for it’s innovative design, and the display’s brightness and high resolution still places it at the top end of display design, over 10 years later.

The display used the all digital OpenLDI interface, which required custom graphics cards. Several models of SGI workstation had the required connector either builtin, or available as an add-in card. Companies like 3D Labs also produced dedicated graphics cards with the special connector, allowing the 1600SW display to be used with standard PCs.

Since it’s introduction, several companies have also produced convertors, allowing DVI video cards to be used with the OpenLDI interface. Over a decade after it’s introduction, the SGI 1600SW remains a high quality display that is very sought after by graphics artists.

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Temperature Humidity Chambers are available from various chamber manufacturers such as Thermotron, Tenney, Espec, Blue M, Despatch, Ransco, TestEquity, Associated Environmental, Bemco, Cincinnati Sub Zero, BMA, Lunaire etc. when sourcing a Temperature Humidity Chamber, there are various issues to consider amongst which are:

(a) The internal volume The inside dimensions of the temperature humidity chamber. This will be decided by the size of the product to be tested.

(b)Temperature Range needed for the test you wish to perform. The maximum range of a Temperature Humidity Chamber is usually from -73C to +200C. However, to accomplish this complete range the chamber will need to have two compressors in what is referred to as a cascade refrigeration system. If only one compressor is used, then temperatures down to approximately -35C is possible. Take into account that humidity testing can not be performed below 0C (freezing point) and that any testing below 0C will be possible for temperature only testing (humidity function will be disabled). Temperature Humidity Chambers are also available without any refrigeration at all. The lowest temperatures at which testing can be performed without refrigeration is usually about 12C above room temperature.

(c) Humidity Range needed for the test you wish to perform. Although most Temperature Humidity Chambers claim that they have a humidity range of 20% to 95%, what is often not taken into account is the temperature range at which these humidity levels can be controlled. For example, at 25C, the lowest humidity obtainable by most temperature humidity chambers that include refrigeration will be about 45% (unless a dehumidifier package is installed). As one increases the temperature above 25C, lower humidity levels than 45% can be controlled. Manufacturers normally provide graphs indicating the temperature versus humidity range of the chamber.

(d) Water Recycling System - If you do not have a drain available to drain the excess water used to create the humidity, you should consider a water recycling system consisting of a water storage container, recycling pump and demineralizer cartridge. This will recycle the water and a drain will not be required. Important - demineralized water should be used for Temperature Humidity Chambers, not deionized water which can harm the interior of the chamber (usually stainless steel) and other components!

This article has been presented to you by LR Environmental Equipment Co. Inc. which carries the largest inventory of Certified Refurbished Environmental Test Chambers and Industrial Ovens in the World.

Should you require more information, they can be contacted at 800-574-2748. Purchasing Certified Refurbished Temperature Humidity Chamber from a reputable company such as LR Environmental who has been in business for over 40 years can save you a fortune while removing the risks when sourcing used. WWW.LRE.COM

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Without printers that function properly, we could not perform in our offices, workplaces, and companies. Printers in turn need HP toners to print properly, since a printer that cannot put ink on the paper is useless. Therefore, the humble printer HP 2820 is an absolute requirement for any business to run properly.

Eventually, any printer cartridge is going to run out of toner, and when it does, you must buy a new one. These new cartridges can mean high expenses for your company, but there are ways to get expenses down. If you replace your toner with remanufactured toner cartridges, you can keep your printing expenses low.

Many companies have been started which specialize in cleaning, repairing, and refilling used cartridges. In this manner HP 2820 is being recycled and employed again at a much lower expenses to consumers. If you are looking for toner that is compatible with your printer, including the HP laser toner cartridge, you may want to look on the web. Online merchants will give you the best values for your money whether you want a black and white cartridge or one with colored toner.

Most people have expressed worry about the quality and compatibility of remanufactured cartridges. However, remanufactured HP 2820 are no different from new cartridges; other than the cost. Additionally, HP printers have no problem supporting remanufactured cartridges. This is a pain-free and worry-free way to save your business a few dollars.

And one more thing: remanufactured HP toner and other cartridges can help the environment! This is due to the fact that these remanufactured items are actually recycling the cartridges, so that the plastic is not simply wasted and tossed away. Reusing the HP 2820 for future use means that less items are filling landfills. And the great part is for this environmentalism, you actually get to enjoy a top quality product at a low cost.

As with all things, however, when purchasing remanufactured HP 2820, make sure you are buying a top quality product. Many vendors are very careful about quality control, but not all are. Inspect all HP toner cartridges you buy for streaks, scratches, and other problems. That way, you can ensure good performance. If you do find a defect, be sure to contact the seller and ask for a refund or exchange.

HP 2820 have shown wide market penetration, from brick and mortar stores, to the world wide web. Ink and toner cartridges are also sold in remanufactured form, where costs are fairly low, and much lower than brand name manufactured cartridges. Without a doubt, a person should check the world wide web for the lowest prices and widest selection, as every penny counts.

Author: Ben Pate

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