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The Dakota Ultrasonics MVX Corrosion Thickness Gauge is a durable multi-mode, dual element gauge designed for rough conditions. This IP65 rated unit is ideal for detecting corrosion and pitting in applications on glass, tanks, tubes and pipe, and boilers. The MXV is protected by an extruded aluminum body and nickel-plated aluminum end caps (gasket sealed). The 12-key keypad is made with a sealed membrane to make it resistant to water and petroleum products. A backlit display allows the operator to view readings even in dim settings. For harsher environments, operators can take advantage of the alarm mode and set a high and low temperature limit.
This gauge utilizes USB-C to PC/OSX connectivity. While having the same features as the MMX-7, the MVX also offers A Scan with rectified ± flaw view and B-Scan with a time-based cross section view. The MVX also offers Pulse-Echo mode for Flaw and Pit detection as well as an Echo-Echo mode for inspections on Thru Paint and Coatings. This unit includes 4GB of internal SD memory.
The MVX features 64 custom used-defined setups and editable factory setups. To improve linearity, the operator can select transducer types with built-in dual path error correction. A bar graph shows the stability of readings during inspection. Velocities can be set manually using the CAL key or selected from a list of 8 common material velocities.
Velocity Chart
| Steel 4340 | 0.2330" / 5918mm |
| Stainless 303 | 0.2230" / 5664mm |
| Aluminum 2024 | 0.2510" / 6375mm |
| Cast Iron | 0.1800" / 4572mm |
| Plexiglass | 0.1060" / 2692mm |
| PVC | 0.0940" / 2388mm |
| Polystyrene | 0.0920" / 2337mm |
| Polyurethane | 0.0700" / 1778mm |
The MVX Corrosion Thickness Gauge is factory-calibrated to NIST & MIL-STD-45662A standards. This gauge includes a 1/4" Ø potted, side entry, dual element transducer at 5 MHz. This transducer is perfect for use on steels, thin plastics, and glass. High-temp and Hi damped transducers are also useable with this unit.
| Measuring | |
| Pulse Echo* | 0.025" - 100' (0.63mm - 30.48m) |
| Echo-Echo** | 0.100" to 6.00" base metal |
| Units | Imperial and Metric |
| Resolution | 0.001" (0.01 mm) |
| Velocity Range | 0.0122 to .7300 in/μs (309.88 to 18,542 m/sec) |
| Pulser | 150 volt square wave pulser |
| Receiver | Manual or AGC gain control with 50dB range (depending on selected mode) |
| Timing | Precision TCXO timing with single shot 100MHz 8 bit ultra low power digitizer |
| Pulse Repetition Frequency | 250Hz |
| Display | |
| Display | 1/8" VGA grayscale display (240 x 160 pixels) Viewable area 2.4 x 1.8" (62 x 5.7mm) EL backlit (on/off/auto invert) |
| A-Scan | Rectified ± flaw view; RF full waveform view; Refresh rate of 25Hz |
| B-Scan | Time based cross section view. Display speed variable (10 to 200 readings per second) |
| Scan Bar | Speed 10 Hz. Viewable in B-Scan and Large Digit views |
| Keypad | 12 tactile feedback keys |
| Memory | |
| Data Structure | Grid (alpha numeric) |
| Screen Capture | Bitmap graphic capture for quick documentation (.tif) |
| Obstruct | Indicates inaccessible locations |
| Capacity | 4GB internal SD card |
| Data Output | USB-C 1.1 PC & OSX connectivity |
| Power Source | |
| Battery | Three AA cells. Alkaline - 35 hrs Nicad - 10 hrs NI-MH - 35hrs |
| Line Power | USB-C to PC or power outlet |
| Physical | |
| Weight | 13.5 ounces (with batteries) |
| Size (WxHxD) | 2.5x6.5x1.24" (63.5x165x31.5mm) |
| Operational Temperature | -14 to 140°F (-10 to 60°C) |
| Case | Extruded aluminum body with nickel-plated aluminum end caps (gasket sealed) |
| Certification | Factory calibration traceable to NIST & MIL-STD-45662A |
| Warranty | 2 year limited |
| Transducer | |
| Frequency Range | 1 - 10MHz |
| Type | Dual Element (transmit and receive) |
| Connectors | Locking quick disconnect |
| Cable Length | 4' |
*Range dependent on material and transducer type.
**Range dependent on coating thickness.
