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A variety of scales and balances are available in the market for use in industries. Some of these industries are the retail industry, furniture, textiles, automotive / trucking, food processing, agricultural, railroad, engineering and construction etc. One of the most common types of industrial scales is the bench scale. They are able to weigh objects from 10 pounds to 150 pounds. It is a general rule that lighter scales are used for measuring small objects which weightought to be less in units, since the lighter the scale the more sensitive their display needs to be. A scale with a capacity of 10 pounds can display a resolution of 0.001 lb.
Most competitive manufacturers make available bench scales for customers according to their specific requirements. Sometimes Buyers do not even know the usage of additional features that come with expensive bench scales and end up paying more for unnecessary things. However, some factors are common to all bench scale and must be kept in mind if you want to make a worthy purchase.
1. Bench size: this is important to know for the type and shape of objects and equipment that need to be placed on the bench.
2. Bench capacity: how much of minimum and maximum weight will the scales measure is important so that you do not end up with scales that are not sensitive to some products in your range.
3. Accuracy: the overall accuracy of any bench scale is its defining value. This level of accuracy to the last decimal is important when weighing according to ISO requirements or safety standards eg in the chemical and food industry. Also when money is related to weighing measurements like trading, courier services, cargo for exports that will eventually be loaded into ships and airplanes.
4. Durability: it is necessary for the sensitivity of scales to be maintained that the device is free from the effects of dust and other pollutants. Rusting is also a big enemy of bench scales. Therefore, go for scales that are galvanized with zinc spray or at least painted to prevent corrosion. Stainless steel construction and a sealed display and platform will also help maintain accuracy.
Competent manufacturers are aware that accuracy results are tied to weighing electronic sensors of the digital scales. They should be accurate enough to produce results in a wide range of temperatures. Being sturdy is essential as industrial usage poses the mechanism to turbulent environment, constant loading and unloading of heavy objects, temperature and pressure changes, climatic exposure which includes the production type eg chemical industry may cause the bench surface to react with object spillage. Proper care has to be taken in extreme conditions.
The best bench scales have built in electronic sensors to detect optimal temperatures for the scale so that the output is adjusted with compensation for temperature variations. The digital circuitry needs to be engineered in a way to quickly react changes in weight while filtering out results of air movement and vibrations. With all the above factors in mind and an NTEP certification can guide you to buy the best bench scale for your company.
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