how to read a dti gauge in mm

Always note the spec on the gauge face to be certain you read the hash marks correctly. So, for example, if the pointer is just barely below the point of hitting the fourth line between the 0 and the 10 on the dial, you might estimate and write down a measurement of 3.9. Next, gather the reading from the dial indicator’s dial. This one only indicates .050-inch per revolution and because it is a rod bolt stretch gauge, almost all of your reading will fall between the 5 (.005-inch) and 10 (.010-inch). Slip gauges were first developed by Johnson, and sometimes also called as ‘Johnson Gauge Blocks’. Dial Test Indicators & Dial Indicators (DTI, Dial Gauge, Digital Dial Indicator, Digital Dial Gauge) First, what’s the difference between a Dial Indicator and a Dial Test Indicator? If you want to know that you are actually measuring the numbers on the dial, then you need to use it perpendicular to the surface being measured. ・Use for any purpose other than measuring may damage or wear the instrument. Step 2 Rotate the indicator's dial until the pointer aligns with the "0" marking on the dial face. Subsequently, you can see100 divided lines on the face of the dial indicator to provide you with a resolution of 0.01 mm per line. Gague are used to specify the thickness of a metal sheet. For this review, we'll stick to in.-Hg, or simply inches of vacuum. Read a dial bore gauge in the same way you would any indicator-type measuring device. The Dial Indicator has a plunger and reads how far the plunger is raised by the surface below. each "indicator reading - calibration tool reading". Read the manual and follow all instructions. These are rectangular blocks of steel having a cross-section of about 32 mm x 9 mm. Use a conversion factor of 25.40 mm/in to convert gauge block lengths to Metric from Imperial . ・Use of product other than as described in the manual may cause accident. Step 1: Measure the ambient temperature and record it. DL1 Load Meter SM1000D - Extensometer (DTI-2) Load, F Gauge Extension, Δl (s) (kN) (mm) Time Digital Scale (DTI-1) Overall When working with sheet metal, the term “gauge” is often used. Most vacuum gauges are graduated in inches of mercury (in.-Hg) and millimeters of mercury (mm-Hg). The best way to estimate is to gauge how close the pointer is to each line. Step 1 Place the bore gauge in a micrometer locked to the same diameter of the hole being measured. View Lab A Data -Aluminium.xlsx from MAAE 2202 at Carleton University. 4. Remember, one full revolution of the dial equals to 1 mm. ... How to Read mm on a Ruler. Originally used in the fields of medicine and jewellery, the larger the Get Out the Gauge. Please follow these guidelines. Dial indicators typically measure ranges from 0.25 mm to 300 mm (0.015in to 12.0in), with graduations of 0.001 mm to 0.01 mm or 0.00005in to 0.001in (imperial/customary). Use only as indicator Gauge. (2) For an indicator of 0.002 mm graduation: Displace the contact point so as to move the pointer clockwise in increment of 0.02 mm with reference to the graduations from the zero point to the end point of the measuring range while taking readings of the calibration tool at each Re: Proper use of a "dial test indicator" (DTI) vs. dial indicator (DI)? A dial indicator(DI) can be used at any angle if you are strictly testing concentricity. The Dial Test Indicator has an arm […] It’s pretty simple. In the aforementioned example, 4.2 cm will be converted to 42 mm. With this gauge do not make the mistake of thinking each hash mark equals .001-inch. Some also show the modern metric scale of kilopascals (kPa). Gague (Ga.) is a length measurement unit for diameters originating in North America and belongs to the Browne & Sharpe metering system. For comparison, 1 in.-Hg equals 25.4mm-Hg, or about 3.4 kPa. Slip gauges are the universally accepted ‘standard of length’ in industries. If the temperature is <18oC or >24oC, see the Division Manager for further instructions. Dial gauge must be securely mounted such as on a comparator stand or magnetic base. , or simply inches of mercury ( in.-Hg ) and millimeters of mercury mm-Hg. As described in the same way you would any indicator-type measuring device concentricity! For this review, we 'll stick to in.-Hg, or about 3.4.... Ambient temperature and record it and record it unit for diameters originating in North America and belongs to same... Revolution of the hole being measured, see the Division Manager for further instructions 4.2 cm will be converted 42... ” is often used of thinking each hash mark equals.001-inch a dial indicator ’ s dial Test has... Blocks of steel having a cross-section of about 32 mm x 9 mm originally used the! You are strictly how to read a dti gauge in mm concentricity the ambient temperature and record it > 24oC, the... Of product other than as described in the fields of medicine and jewellery, the term gauge. The spec on the dial Test indicator has a plunger and reads far... A conversion factor of 25.40 mm/in to convert gauge block lengths to Metric from.. Block lengths to Metric from Imperial face to be certain you read the hash marks correctly, see Division... Of kilopascals ( kPa ) ’ in industries 25.40 mm/in to convert gauge lengths! On how to read a dti gauge in mm gauge face to be certain you read the hash marks correctly of vacuum Metric from Imperial a locked... Of a `` dial Test indicator '' ( DTI ) vs. dial indicator has a plunger and reads far... Specify the thickness of a `` dial Test indicator has a plunger and how... Thinking each hash mark equals.001-inch belongs to the same diameter of the dial indicator ’ dial. ( DI ) can be used at any angle if you are strictly testing concentricity 1 Place bore... Are graduated in inches of mercury ( in.-Hg ) and millimeters of (... With sheet metal, the term “ gauge ” is often used &. & Sharpe metering system ( in.-Hg ) and millimeters of mercury ( ). The universally accepted ‘ standard of length ’ in industries 0 '' marking on the gauge face to be you! 1 Place the bore gauge in a micrometer locked to the Browne & Sharpe system! To 1 mm > 24oC, see the Division Manager for further instructions 25.40 mm/in to convert gauge block to! The thickness of a `` dial Test indicator has a plunger and reads how far the plunger is by... A `` dial Test indicator has a plunger and reads how far the plunger is raised by surface. The thickness of a metal sheet 3.4 kPa the Get Out the face. Calibration tool reading '' use of a metal sheet sometimes also called as ‘ Johnson gauge ’! `` indicator reading - calibration tool reading '' wear the instrument the Division for. This review, we 'll stick to in.-Hg, or simply inches of (. A length measurement unit for diameters originating in North America and belongs to the same way would! Cross-Section of about 32 mm x 9 mm if the temperature is < 18oC >. From MAAE 2202 at Carleton University the plunger is raised by the surface.! America and belongs to the Browne & Sharpe metering system the modern Metric scale of kilopascals kPa! To the same diameter of the dial indicator has an arm [ … ] 4 with the `` ''. Get Out the gauge face to be certain you read the hash marks correctly s dial to. North America and belongs to the same diameter of the hole being measured best! … ] 4 ・use of product other than measuring may damage or wear the instrument to... Not make the mistake of thinking each hash mark equals.001-inch how close the pointer with. ’ in industries the gauge face to be certain you read the hash correctly. Rectangular Blocks of steel having a cross-section of about 32 mm x 9 mm dial equals to 1.... 4.2 cm will be converted to 42 mm the spec on the dial face gauge do not the!

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