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Ultrasonic Corrosion Thickness Gauge - CMX2-DL & CMX3-DL

Ultrasonic Corrosion Thickness Gauge - CMX3-DL
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Ultrasonic Corrosion Thickness Gauge - CMX Series
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High-Precision Gauge for Simultaneous Coating and Material Thickness Measurement

The CMX3-DL Ultrasonic Corrosion Thickness Gauge is a powerful, dual-mode inspection tool designed to measure both material thickness and coating thickness simultaneously. Built for demanding environments, the CMX3-DL combines advanced ultrasonic technology with user-friendly operation—making it ideal for corrosion assessment and structural integrity testing across a wide range of industries.

With data logging capabilities and superior signal clarity, the CMX3-DL delivers fast, accurate results while minimizing the need for surface preparation.

The CMX3-DL ultrasonic corrosion thickness gauge is ideal for:

  • Oil & Gas – Pipeline corrosion monitoring and pressure vessel inspection
  • Aerospace – Aircraft structural component assessment
  • Automotive – Base metal and coating checks in manufacturing or QA
  • Power Generation – Boiler and heat exchanger wall thickness testing
  • Infrastructure & Civil Engineering – Bridge, tank, and structural inspections
  • Railway & Mining – Corrosion assessment in rolling stock and heavy equipment
Ultrasonic Corrosion Thickness Gauge - CMX2-DL & CMX3-DLUltrasonic Corrosion Thickness Gauge - CMX2-DL & CMX3-DL

Ultrasonic Corrosion Thickness Gauge - CMX3-DL Features

  • 100MHz DSP platform with FPGA technology
  • Dual-channel design with two pulsers and receivers
  • Pulse repetition rate up to 250Hz
  • Screen refresh: 25Hz (B&W), 60Hz (Color)
  • Switchable A-Scan views (portrait & landscape, color only)
  • Adjustable gain: 110dB range
  • Automatic Gain Control (AGC)
  • Linear Time-Dependent Gain (TDG) with adjustable slope
  • Compatible with Single, Dual, Delay Line, and Pencil probes
  • 4GB internal memory
  • USB-C connectivity

Ultrasonic Corrosion Thickness Gauge - CMX3-DL Technical Specifications

PHYSICAL
Weight:13.5 ounces (with batteries).
Size:Width (2.5 in / 63.5 mm)
Height (6.5 in / 165 mm)
Depth (1.24 in / 31.5 mm)
Operating Temperature:14 to 140°F (-10 to 60°C).
Case:Extruded aluminum body with nickel-plated aluminum end caps (gasket sealed).
Keypad:Membrane switch pad with twelve tactile-feedback keys.
Data Output:USB-C port. Windows PC interface software.
Display (Two Options):CMX2-DL: 1/8in VGA grayscale display (240 x 160 pixels). Viewable area 2.4 x 1.8in (62 x 45.7mm). EL backlit (on/off/auto). 25Hz screen refresh rate.
CMX3-DL: 1/4 VGA AMOLED color display (320 x 240 pixels). Viewable area 1.7 x 2.27in (43.2 x 57.6mm). 60Hz screen refresh rate.
TRANSDUCER
Transducer Types:Dual/Single Element (1 to 20MHz). Contact, matching layer, delay line, and pencil configurations.
Locking quick disconnect "00" LEMO connectors.
Standard 4 foot cable.
Custom transducers & cables lengths available for special applications.
POWER SOURCE
Batteries:Three AA cells
Alkaline - Grayscale 35 hours. Color 12 hours.
Nicad - Grayscale 10 hours. Color 5 hours.
NI-MH - Grayscale 35 hours. Color 12 hours.
Power saving DIM (color), auto off 5 minutes. Battery status icon.
Line power:USB-C connected to PC or power outlet
ULTRASONIC SPECIFICATIONS
Measurement Modes:Coating Off: Pulse-Echo (P-E)
Coating On: Pulse-Echo Coating (PECT)
Temp Comp: Pulse-Echo Temperature Compensation (PETP)
Thru-Paint: Echo-Echo (E-E)
Thru-Paint Verify: Echo-Echo Verify (E-EV)
Coating Only: Coating (CT)
Pulser:Dual square wave pulsers.
Receiver:Dual receivers - manual or AGC gain control with 110dB range (limited).
Adjustable damping (50-1500 ohms).
Timing:Precision TCXO timing with single shot 100MHz 8 bit ultra low power digitizer.
DISPLAY
Large Digits:Standard thickness view.
Digit Height: 0.700 inches (17.78mm).
Color 0.565 in (14.35mm).
A-Scan:Rectified +/- (flaw view), RF (full waveform view). Portrait & landscape views (CMX3-DL only).
Pulse Repetition Frequency:250Hz
A-Scan Refresh Rate:B&W 25Hz, color 60Hz.
B-Scan:Time based cross section view.
Display speed variable (10 to 200 readings per second).
Scan Bar Thickness:Speed 33Hz.
Viewable In B-Scan and Large Digit views.
Repeatability Bar Graph:Bar graph indicates stability of reading.
Feature Status Bar:Indicates features currently active.
MEMORY
Log Formats:Grid (Alpha Numeric), or Sequential (Auto Identifier).
Capacity:4Gb internal memory.
Screen Capture:Bitmap graphic capture for quick documentation (.tif).
OBSTRUCT to indicate inaccessible locations.
REPLACEMENT
Replacement Models:CMX2-DL replaces CMXDL+ & CG100ABDL
CMX3-DL replaces CMXDL+ Color & CG100ABDL+
MEASURING
Pulse-Echo Mode (P-E):(Pit & Flaw Detection) measures from 0.025 to 100ft. (0.63 to 30.48M).
Pulse-Echo Coating Mode (PECT):(Material, Coating, Pit & Flaw Detection)
Material: 0.025 to 100ft. (0.63 to 30.48M).
Coating: 0.001 to 0.100in (0.01 to 2.54mm).
Pulse-Echo Temp Comp Mode (PETP):(Pit & Flaw Detection) Auto temperature compensation - measures from 0.025 to 100ft. (0.63 to 30.48M).
Echo-Echo Mode (E-E):(Thru Paint & Coatings) measures from 0.100 to 6.0in (2.54 to 152.4mm). Range will vary +/- depending on the coating.
Echo-Echo Verify Mode (E-EV):(Thru Paint & Coatings) measures from 0.100 to 1.0in (2.54 to 102mm). Range will vary +/- depending on the coating.
Coating Only Mode (CT):(Coating Thickness) measures from 0.0005 to 0.100in (0.0127 to 2.54mm). Range will vary +/- depending on the coating.
Resolution:+/- 0.001 in (0.01mm).
+/- 0.0001 in (0.001mm)
Velocity Range:0.0122 to 0.7300 in/μs (309.88 to 18542 m/sec)
Calibration:Single and Two point calibration option for material & coating, or selection of basic material types.
Units:English & Metric
CONNECTIONS
Output:Direct USB-C 1.1 PC connectivity.
Transducer Connectors:Two LEMO 00 connectors.
CERTIFICATION
Calibration:Factory calibration traceable to NIST & MIL-STD-45662A.
WARRANTY
Warranty Period:2 year limited.

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Ultrasonic Corrosion Thickness Gauge - CMX Series