Wrap the tape around the object to be measured. Each line on the gage member represents 5mm of diameter while each line on the vernier represents 01mm.
This will automatically convert the circumference into a diameter.
How to read a pi tape. Make certain the tape and object to be measured are both clean. TO READ OUTSIDE DIAMETER METRIC TAPE GAGE MEMBER Make certain the tape and object to be measured are both clean. It is calibrated so that each inch is 3142 inches long or pi π inches long.
When using the Outside Circumference tape apply a snug pull of 5 pounds tension first making certain the tape and part have been cleaned. Keep tape clean and dry. Store in tape container and in a low moisture environment.
White Easy to Read tapes Stainless or 1095 Spring Steel – Do not oil or use solvents to clean this product. These graduations are designed to convert circumferential distance into diameter measurement so the observer can read the diameter directly from the scale. The pi tape also has a vernier which makes it capable of measuring the diameter of the reel to.
Introduction 11 Purpose PI tapes are circumferential measuring tapes that are wrapped around a circular or cylindrical object and when read indicate the diameter of the object. Please click here to view our ISOIEC 170252017 Certificate of Accreditation pdf. Tighten the tape around the object with 225 kg tension.
Each line on the gage member represents 025 while each line on the vernier represents 001. When taking a reading the vernier section 14 inch wide 635mm and the gauge member 14 inch wide 635 mm lie along side each other so the overall width becomes 12 inch 1270 mm. Tapes are checked over master gages at 001 03mm accuracy for standard tapes up to 144 3600mm.
Please enter your email address. Reading the Pi Tape The pi tape measures the diameter of a reel by wrapping around the circumference. Pi Tape gages consist of a narrow metal ribbon bearing special graduations.
Video and PDF Instructions. The vernier scale should be just below the gage member. This type of tape measure has the whole inch numbers labeled as well as the eighths and quarters of an inch labeled like 18 14 38 etc which makes reading a tape measure much easier.
For special ranges choose the instruction sheet based on the maximum measurement. Wrap the tape around the object to be measured. Wrap the tape around the object to be measured.
The vernier scale should be just below the gage member. Calibrations of PI Tapes Bench Method 1. But sometimes your measurement ends up falling on one of those little lines with no number markings.
TO READ OUTSIDE DIAMETER INCH TAPES Make certain the tape is free of damage and the tape and object to be measured are both clean. After each use wipe clean and apply a light rust preventive oil. The vernier scale should be just below the gauge scale.
TO READ OUTSIDE CIRCUMFERENCE INCH TAPES GAGE MEMBER VERNIER SCALE Each line on the gage member represents 025 while each line on the Vernier scale represents 001. Exemplified by Pi Tape brand tape provides a quick. The tapes are manufactured for various diameter ranges and for either outside diameters OD or inside diameters ID.
Tape is delicate handle with care. Pi Tape Texas LLC provides the following video below pdf instructions to the right to help ensure accurate measurements with Pi Tape Precision Measuring Tapes. OD-inches from Design International Media on Vimeo.
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