The MINI-MAX v2.0 Ultrasonic Bolt Tension Monitor defines the state of the art in the measurement of the actual elongation produced by tightening a threaded fastener. MINI-MAX can measure the elongation very accurately in fasteners of virtually any material from 1/2 inch to 50 feet in length.
The measurement is achieved by determining the change in the transit time of an ultrasonic shock wave along the length of the fastener as the fastener is tightened using a mechanical method. The time is then converted to elongation, load, stress, or %strain. The Mini-Max has 4GB SD storage capacity for data storage in a group file format, as well as .tif file screen captures for additional documentation. Our DakView PC & OSX utility software completes the reporting process and allows for present and future verification.