Dakota Ultrasonic Thickness Gauges

MMX-7 High Performance Data Logging Wall Thickness Gauge

The New MMX-7 is a full-featured ultrasonic thickness gauge offering an oversized display as well as a complete alphanumeric data logging system with a storage capacity of thousands of data values.

The MMX-7 features the highest resolution graphic LCD on the market and is specially engineered for optimal ease of use.
The MMX-7 has the ability to store 64 custom user-defined setups. All factory setups can be selected, edited, and saved to any setup location.

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  • The high speed scan feature speeds up the inspection process by making 32 measurements per second. Remove transducer from the test material, and display the minimum measurement scanned.
  • Use the visual alarm to set hi and lo limits for applications requiring specific tolerances. If the actual thickness value is above or below the limits, a red light is illuminated.
  • Use the AUTOFIND feature to locate the detection point, while automatically adjusting the display to bring the signal into view.
  • The time-based B-Scan feature displays a cross section of the test material. It is commonly used to display the profile of the bottom surface of the test material.
  • Includes NIST-Traceable Calibration Certificate.
  • Built in hardware AGC gain control for through paint measurements in multi mode operation.


Range in Steel Pulse-Echo Mode: Pit and Flaw detection measures from 0.63 to 254 millimeters (0.025 - 9.999inches) / Echo-Echo Mode: Thru Paint & coatings measures from 2.54 to 102 mm (0.100 - 4.000 inches). Range will vary depending on the thick
Resolution .001 inches (0.01mm)
Velocity Range .0492 to .3936 in./ms 1250 to 9999 meters/sec
Measurement Modes Pulse-Echo (flaws, pits) - Echo-Echo (thru-paint)
Transducer Types Dual Element (1 to 10 MHz).
Memory capacity 12,000 pages with 1 reading and waveform per page
Power Source Three 1.5V alkaline or 1.2V NiCad AA cells
Display 1/8 in. VGA grayscale display 62 x 45.7mm
Case Extruded aluminum body with nickel-plated aluminum end caps (gasket sealed).
Certification CE Approved, Factory calibration traceable to national standards

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