Dakota Digital MX-5 operation manual Appendix B, Application Notes ∙ Measuring pipe and tubing

Page 33

MX-5 Ultrasonic Thickness Gauge

APPENDIX B

Application Notes

Measuring pipe and tubing

When measuring a piece of pipe to determine the thickness of the pipe wall, orientation of the transducers is important. If the diameter of the pipe is larger than approximately 4 inches, measurements should be made with the transducer oriented so that the gap in the wearface is perpendicular (at right angle) to the long axis of the pipe. For smaller pipe diameters, two measurements should be performed, one with the wearface gap perpendicular, another with the gap parallel to the long axis of the pipe. The smaller of the two displayed values should then be taken as the thickness at that point.

Perpendicular Parallel

Measuring hot surfaces

The velocity of sound through a substance is dependant upon its temperature. As materials heat up, the velocity of sound through them decreases. In most applications with surface temperatures less than about 200°F (100°C), no special procedures must be observed. At temperatures

29

Image 33
Contents P-114-0002 Page Disclaimer ContentsBlank Introduction Blank Keypad OperationDakota Ultrasonics MX-5 Ultrasonic Thickness Gauge Dakota Ultrasonics Display Dakota Ultrasonics Transducer Making Measurements MX-5 Ultrasonic Thickness Gauge Condition and Preparation of Surfaces Performing a Probe-Zero Probe ZeroCalibration Calibration to a known thickness Calibration to a known velocity Two Point Calibration Moving series of dashes instead of a thickness value. When Scan ModeUsing the Beeper Alarm ModeDifferential Mode RS232 Serial Port Connecting To a Computer Transducer Selection Dakota Ultrasonics MX-5 Ultrasonic Thickness Gauge Blank Appendix a Product Specifications PhysicalBlank Application Notes ∙ Measuring pipe and tubing Appendix B∙ Measuring laminated materials MX-5 Ultrasonic Thickness Gauge Blank Sound Velocities of some Common Materials Appendix CBlank ∙ Warranty Statement ∙ Warranty InformationSONOTECH, INC