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What are the different types of range of a dial indicator readout and what are they used for?

The dial reading on some indicators will come with a more limited range, which may be the ability to make only a single revolution around the face of the dial. These types of readout are called one-rev indicators. This range is very useful when it comes to measuring deviations that require a high degree of magnification and level of detail since they help to eliminate any chance of miscounting the number of revolutions. Higher range indicators vary in the number of revolutions they are able to make around the dial, with some reaching up to ten revolutions. Higher range dial indicators are better for measurements that do not require much magnification. These final measurements are calculated through a summing process. Often, in order to allow the user to keep up with the number of revolutions and complete accurate measurements, a continuous dial reading is preferred.
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