"The invention of the Weighmeter"
The Jennings JS series is undoubtedly one of the most popular pocket scales in the world. It's unique shape and design led to it's popularity, however in the years since it's launch it has grown a bit grey in the temples and in need of a revamp. The JS design was also copied by many other companies and thus it was definitely in need of a total revamp to keep it's popularity strong.
The JS-V series is quite a nifty little scale. The outer shape of the original JS is maintained but the LCD was tripled in size, additional keys were added to control the backlight, auto-off timer and other adjustable features. The flip-top cover is now removable and doubles as an expansion tray / bowl. The weighing tray is now stainless steel with a raised lip around the outside. This raised lip is indicative of the newest weighing scales and is truly important to help keep loose items from falling off the tray. In addition to the raised lip, the JS-V has a spill catching ring around the outside of the tray, with grooves to direct any spilled items towards the back of the scale. In our tests of weighing gunpowder, this ring came in very handy and we strongly liked this design.
The JS-V uses a multi-point overload protection system that appears to be borrowed from the My Weigh 5PPS. We did many overload tests on the scale and were not reasonably able to damage the sensors.
The most innovative feature of the JS-V is the Weighmeter. This is a new invention under license that shows a bar graph on the side of the display. The bars increase as additional load is put on the scale. It shows you as you get closer and closer to the capacity of the scale. Once you exceed the capacity the graph shows "OVER LOAD". For a short video showing how it works click here The Weighmeter is something that can revolutionize the entire weighing industry. This invention should be applied to all scales in the future. It truly helps to prevent accidental overload during use and is a significant weighing tool. More information on the Weighmeter can be found in the inventor's patent disclosure here
Our tests for accuracy and reproductability were both good, the 4-corner weight test gave standard deviations +/- 0.1g which is perfect. Our tests for 4 corner deviances yielded no results but we did find that best accuracy was achieved in the center of the weighing tray. Drift was minor and within tolerance (no drift within 30 seconds).
Recommendations: Only a precious few of the newest JS-V scales have the Weighmeter. Jennings says they will be rolling out this technology into all of the JS-V scales in late 2006 but as of right now it's only on select models. So, if you want the Weighmeter be sure you check the scale before you buy it.
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*Within reason - we stepped on the platform, dropped the scale from 4 ft, all without any damage except for cosmetic.
Important Disclaimer: Scales are sometimes difficult to compare. Our results are just a sample of tests done at random conditions. The actual operating conditions of your scale may vary from our test conditions and your results may differ from our results. We did our best to test the scales in a blind and unbiased manner. We receive advertising and other consideration from companies that support this site. We do our best to not allow this to affect the results of our tests and evaluations. However, we strongly recommend that you do your own comparison tests in your actual operating environment to determine which scale is best for your needs.
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