If you found a zero error earlier, don't forget to subtract it from your measurement. Consider purchasing a digital caliper if you are having trouble reading a vernier or dial caliper. Reading #1: What is the reading of this Dial Caliper? Step 2: Read the whole tenth (0. x 00) portion of the measurement. Watch the jaws closely to make sure you are not pushing a fine adjustment screw, which opens and closes the jaws by small amounts. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. In the dial, the pointer gives a full turn (360°) every tenth of an inch of advance (0.1 in) and its dial has a hundred divisions. Your sliding scale measures 4.3 and is marked "0.01 inches," meaning it represents 0.043 inches. Add them together to get a measurement of 5.5092 cm. To create this article, 11 people, some anonymous, worked to edit and improve it over time. Compare the 0 positions on the sliding scale and the fixed scale, which is engraved on the caliper body. This article has been viewed 107,857 times. Note that the inches scale of a caliper is typically an engineer's scale, with each inch divided into ten parts (0.1) or five parts (0.2). wikiHow is where trusted research and expert knowledge come together. How to raed a dial caliper. Open the caliper until the depth blade contacts the bottom of the hole. Reading a Dial Caliper- Step by Step Guidelines . Read the value on the fixed scale that lines up with the sliding scale's 0. For example, if your zero error is +0.9mm, and you take a measurement that reads 5.52mm, the actual value is 5.52 - 0.9 = 4.62mm. The exact measurement is 1.3 inches + 0.043 inches - 1.343 inches. To create this article, 11 people, some anonymous, worked to edit and improve it over time. Unless you are working on a project that requires extreme precision, you can probably round this to 5.51 cm. For example, if your zero error is -1.3mm, and you take a measurement that reads 3.20mm, the actual value is 3.20 - (-1.3) = 3.20 + 1.3 = 4.50mm. If caliper doesn't zero, loosen the bezel clamp screw and rotate the bezel to the "0" position. In this way, each stroke that the pointer “sweeps” represents the 0.1 / 100 inch (one tenth of an inch divided by one hundred) or one thousandth of an inch. The first number to the right of the decimal point is a tenth of an inch (1/10), the second number signifies a hundreth of an inch (1/100), and the third number signifies a thousanth of an inch (1/1000). Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Although it is not as accurate as a Vernier Scale Micrometer (which can read to within .0001 of an inch), the Six-Inch Dial Caliper is more versatile. Learn more... Calipers are measuring tools used to precisely determine the width of a gap or object, much more accurately than a tape measure or ruler. Reading a Dial Caliper DRAFT. Step 1 Place the bore gauge in a micrometer locked to the same diameter of the hole being measured. 2.1 Common Mistakes; Step 1: Understanding the Parts of a Dial Caliper . The answers are not in the right sequence with the review questions. When looking at the caliper there is a straight edge to the left of the dial indicator. Dial calipers are used for measuring diameters, thicknesses, and lengths of small items. If your caliper has a fine adjustment screw, you can use this to make more precise adjustments. with 0.001 in. All tip submissions are carefully reviewed before being published. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Dial Calipers are arguably the most common and versatile of all the precision measuring tools. Contents. The space between each number is divided into quarters. The Dial Vernier Caliper is a very easy and reliable precision tool.
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