Dakota Mini-Max Bolt Tension Monitor with Temperature Connector

The Dakota Ultrasonics Mini-Max Ultrasonic Bolt Tension Monitor measures the actual elongation produced by tightening a threaded fastener. The Mini-Max enables you to monitor your bolts during periodic shutdowns so you can accurately identify loaded and unloaded waveforms of virtually any material from 1/2 inch to 8 feet in length.

The MINI-MAX determines the length of the fastener through the change in the transit time of an ultrasonic shock wave across the length of the fastener, regardless of tightening method. Measurements are displayed in time (nanoseconds), elongation, load, stress, or percent strain. The digital and automated diagnostics are intuitive and minimize the requirement for significant operator training. 

The Dakota Ultrasonic Mini-Max allows you to visually compare your results in an intuitive and easy-to-use, menu driven 1/8 inch VGA display with 240 x 160 pixel resolution. The Mini-Max stores up to 8,000 readings and waveforms in multiple groups and offers built-in linear regression or vector for optimizing load measurements.

The Mini-Max also has an auto-set feature that automatically optimizes detection and adjusts the display. There are also hi/lo alarm tolerance limits that work in conjunction with the data port and external pump shut-off device.

The Dakota Ultrasonics Mini-Max ships with built-in data recordation and supporting DakView utility software for Windows PC & MAC OSX, and is a field-tested solution for the most difficult bolting problems.

When purchasing this instrument, please be sure to select the transducers that best meet your measurement requirements.

Brochure

Operating Manual

• The first cost effective ultrasonic solution available on the market.
• Effectively monitor your bolts during periodic shutdowns over the service life of the fastener.
• Visually compare the unloaded to the loaded waveform.
• Measurement quanities – Time (nanoseconds), Elongation, Load, Stress, and Percent Strain.
• 64 custom user defined setups; Factory setups can also be edited by the user
• Display Options – RF, Rectified, Large Digits with Limits Bar.
• Display Resolution – 1/8″ VGA 240 x 160 pixels.
• Stores 8000 readings and waveforms in multiple groups.
• Built-in Linear regression or vector for optimizing load measurements.
• Gate used to fine adjust where the detection point occurs
• The Auto Set feature automatically optimizes detection and adjusts display.
• Set Hi and Lo tolerances with audible beeper, viewable scan bar, and visual LEDs
• Hi/Lo alarm tolerance limits work in conjunction with the data port and external pump shut-off device.
• Vector & linear regression