The TI-MiniMax, Ultrasonic Bolt Tension Monitor, defines the state of the art in the measurement of the actual elongation produced by tightening a threaded fastener.
The TI-MiniMax can measure the elongation very accurately in fasteners of virtually any material from 1/2 inch to 4 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 by any method.
The on-board microcomputer automatically interprets this time measurement to display the time(nanoseconds), elongation, load, stress, or %strain from stretching a fastener.
The TI-MiniMax is supplied as a kit including:
The TI-MiniMax-C (with temperature connector) can only be ordered with the purchase of a temperature sensor A- 156-8001.
Probes/Transducers and Calibration blocks are sold separately !!!
Measuring Range | From 1” to 48” (25.4mm to 15,24 m) bolts |
Time | Nanoseconds |
Elongation | Change in length (inches/millimeters) |
Load | Force load applied (pounds kIP or kN Kilonewtons) |
Stress | Force for unit area stress applied (pounds kPSI or megapascals MPa) |
Strain % | Ratio of elongation to effective length |
Resolution | +/- .00001 inches (0.0001 mm) |
Velocity Range | .0492 to .5510 in m/s 1250 to 13995 m/s |
Calibration | Fixed, Single, and Two point zero calibration options. Select bolt material types from a preset or custom list. |
Units | English & Metric / Fahrenheit & Centigrade |
Measuring Modes | Pulse-Echo (standard) Pulse-Echo w/Gate (fine adjust) |
Pulser | Square wave pulser with adjustable pulse width (spike, thin, wide) |
Receiver | Manual or Auto Set gain control with 40dB range |
Timing | Precision TCXO timing with single shot 100 MHz 8 bit ultra low power digitizer. |
Display Modes | A-Scan - Rectified +/- (half wave view), or RF (full waveform view) |
Alarm Limits | Set hi and lo tolerances with audible beeper, viewable scan bar, and visual LEDs |
Memory | 4GB internal SD memory |
Transducer | Single Element (1 to 10 MHz & 1/8” to 1” diameters) |
Transducer Cable Length | 10 foot (custom lengths available, inquire) |
Temperature Probe | Automatic temperature compensation |
Setup Memory | 64 custom user defined setups. Factory setups can also be edited by the user |
Gate | Gate used to fine adjust where the detection point occurs |
Auto Set | Automates the detection, scope,and display setting process for each individual bolt |
Field Calibration | Vector or Regression correction curve for increased accuracy using Load & Stress. |
Power | Three AA cells. - Nicad 10 hrs - Alkaline 35 hrs - NI-MH 35 hrs Auto power off after 5 minutes idle. |
Dimensions | Width (2.5in/63.5 mm) Height (6.5 in/165 mm) Depth (1.24 in/31.5 mm) |
Weight | 13.5 ounces (with batteries) |
Operating Temperature | 14 to 140F (-10C to 60C) |