All tip submissions are carefully reviewed before being published. To calculate the measurement, divide the number by 1,000. Thanks. If your dial indicator makes more than seven revolutions, check for errors at every revolution after your reach seven. SKU 303-9601. Keep careful track of your revolutions, especially when the inner face circles multiple times because it can get confusing. the workpiece surface, read values have to be corrected accordingly (Fig. Each of them provides a different scale. My humble opinion, Jim One of the things that you need to recognize is the resolution. Besides, to read a 0.0005″ dial indicator we must focus on several measuring divisions. The final calculation is 0.4″ (inner dial) + 0.010″ (outer dial) =  0.410″. Black dial models only come in the standard horizontal version. wikiHow is where trusted research and expert knowledge come together. In this case, each line on the dial is worth one millimeter. I have both a half thousandth (0.0005″) and tenths (0.0001″) Interapid DTI’s. Imagine that the smaller dial is stopping at 0.4 and the bigger dial is stopping at the number 10 on the right side. I have a Mitutoyo dial test indicator, Model: 513-405-10T. Watch the dial face once the tool is squared. The top indicator is an Interapid. Advance the micrometer head and to different points and note whether the changes in the micrometer head and check different points in the other direction. The Digital Dial Indicator and How to Read From It. To determine accuracy, you need to use precision tools, including a dial test indicator. Aside from the dial indicator, it has a magnetic base, as well as a set of 22 indicator points. If the dial indicator did not make at least one revolution, then skip to reading the large gauge because the small gauge only matters if the indicator makes at least one full revolution. Mount your dial indicator on a stand. Before proceeding to the next step, ensure the dial gives a 0 reading. Simply, the formula is shown below: Inner Reading + Outer Reading = Total Reading. Features a RS232 data output interface, perfect for massive data measurements. The set has a 1-inch dial indicator with graduation of .001-inch. The resolution is 0.0005". Every day at wikiHow, we work hard to give you access to instructions and information that will help you live a better life, whether it's keeping you safer, healthier, or improving your well-being. Let’s have a glance at the summery. It indicates a range of 0 to 1 inch and, more importantly, it specifies 0.0005 inch between each hash mark. 4) Dial Indicator: Set the indicator up in a precision bench micrometer in a horizontal position so that the spindle is in line with the movable anvil and bears on this anvil. These lever type dial test indicators are especially intended for use on the shop floor or in the quality inspection room. Next, count the marks displaced on the small and large gauges by looking where the hand is pointing. To get the final calculation, we could do it easily by adding the reading of the inner dial and outer dial. ••• Another is the scale. Your dial indicator should have an attachment that you can use to secure it to a stand. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Each division represents one complete revolution of the bigger needle. Your manufacturer will also print the range of measurements on either your dial indicator or the instructions that come with it. Most dial indicators come with 0.001″ resolution. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/1d\/Read-a-Dial-Indicator-Step-1-Version-2.jpg\/v4-460px-Read-a-Dial-Indicator-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/1\/1d\/Read-a-Dial-Indicator-Step-1-Version-2.jpg\/aid1370490-v4-728px-Read-a-Dial-Indicator-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"