![]() The calibration process is very simple and you already have all of the necessary tools. Instead, the scales need to be calibrated in place following one of the methods described below. To make sure that your setup is as accurate as it can be, you can’t trust the “default” value. Based on the 0.0002” resolution the CPI should be 5000, but in fact it’s 5080, which is almost 2% off. For instance, the glass scales that are advertised to have resolution of 0.0002” have resolution of 0.005mm, and 5 microns don’t equal 2 ten thousands. Furthermore, many of the scales that come from China are metric. In addition, there are manufacturing tolerances, rounding issues etc, that can skew the numbers even more. The values for many of the commonly available scales have been found experimentally, and might be off by one or two counts. ![]() First of all, CPI for most of the the capacitive scales isn’t officially provided by the scale manufacturers. These problem can be caused by several different issues. I’ve received a fair number of complaints about the readout being inaccurate when the default counts-per-inch were used. ![]()
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