CMX2-DL Thickness Gauge

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Product Information

Specifications

• Weight: 13.5 ounces (with batteries)

• Size: Width 2.5 in, Height 6.5 in, Depth 1.24
  in

• Memory: 4GB internal

• Display: CMX2-DL: 1/8in VGA grayscale display
  (240 x 160 pixels), CMX3-DL: 1/4 VGA AMOLED color display (320 x
  240 pixels)

• Transducer Types: Dual/Single Element (1 to
  20MHz)

• Power Source: Three AA cells (Alkaline, Nicad,
  NI-MH)

• Measurement Modes: Pulse-Echo, Pulse-Echo
  Coating, Pulse-Echo Temperature Compensation, Echo-Echo, Echo-Echo
  Verify, Coating

• Pulser: Dual square wave pulsers

• Reciever: Dual receivers with manual or AGC
  gain control

Product Usage Instructions

Physical Features

The Dakota CMX Corrosion Thickness Gauge is designed with an
extruded aluminum body and nickel-plated aluminum end caps, making
it durable and suitable for various industries such as Aerospace,
Automotive, Energy, and more.

Data Output and Display

The device comes with a USB-C port for data output and a display
option of either a grayscale display on CMX2-DL or a color AMOLED
display on CMX3-DL. The display provides clear visibility with
different refresh rates for optimal user experience.

Transducer Usage

The gauge supports various transducer types including
Dual/Single Element with different configurations for specific
applications. It includes locking quick disconnect LEMO connectors
for easy connectivity and standard cable length of 4 feet.

Power Source and Ultrasonic Specifications

The device operates on three AA cells with different battery
types offering varying usage durations. It also features multiple
measurement modes for accurate readings under different conditions
such as Coating On/Off, Temp Comp, Thru-Paint, and more.

Display Features

The display includes large digits for standard thickness view,
A-Scan for flaw view, RF waveform view, Pulse Repetition Frequency
of 250Hz, and B-Scan for time-based cross-section view. Additional
features like Scan Bar Thickness, Repeatability Bar Graph, and
Feature Status Bar enhance usability.

Frequently Asked Questions (FAQ)

Q: What industries can benefit from using the Dakota CMX

Corrosion Thickness Gauge?

A: The gauge is suitable for industries such as Aerospace,
Automotive, Energy, Infrastructure, Mining, Oil & Gas,
Pipelines, and Railway.

Q: What is the battery life of the device?

A: The battery life varies based on the type of batteries used –
Alkaline provides 35 hours in grayscale mode and 12 hours in color
mode; Nicad offers 10 hours in grayscale and 5 hours in color;
NI-MH lasts 35 hours in grayscale and 12 hours in color mode.

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Dakota NDT
an Elcometer company
CMX2-DL & CMX3-DL
Thickness Gauge
HIGHLIGHTS:
Powered by a 100MHz DSP platform using FPGA technology. Two Channels–Dual pulsers and
receivers. Up to 250Hz pulse repetition rate. Screen refresh: B&W 25Hz, Color
60Hz. Switchable A-Scan portrait & landscape views (color only). Adjustable gain: 110dB range. Automatic gain control (AGC). Linear time dependent gain (TDG) with adjustable slope. Probes: Single, Dual, Delay line, Pencil. Memory: 4gb internal. USB-C connectivity
www.dakotandt.com

DAKOTA CMX2-DL & CMX3-DL THICKNESS GAUGE
Top of the range and easy to use, the Dakota CMX Corrosion Thickness Gauges provide inspectors with all the features necessary to measure the material and coating thickness at the same time. Industries: Aerospace, Automotive, Energy, Infrastructure, Mining, Oil & Gas, Pipelines, Railway

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 swich 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.
Reciever: Dual recievers – 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
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/s (309.88 to 18542 m/sec)
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
Factory calibration traceable to NIST & MIL-STD-45662A.
WARRANTY
2 year limited.

MADE IN THE USA
1500 Green Hills Road, #107, Scotts Valley, CA 95066

Dakota NDT
an Elcometer company global.sales@dakotandt.com www.dakotandt.com

References

• Dakota NDT - Ultrasonic solution in Corrosion Inspection, Flaw Detection and Bolt Tension

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