Dakota CMX Advanced Thickness Gauges

Dakota CMX Advanced Thickness Gauges

High Performance Multi-Mode Material & Coating Thickness Measurements

How Pulse Echo Mode Works


1. Couplant   3. Testing Material

How Echo-Echo Mode Works


1. Couplant   2. Coating   3. Test Material

How Pulse Echo + Coating Mode Works


1. Couplant  2. Coating  3. Testing Material

 

All 3 measuring modes featured in all CMX instruments

CMX High Performance Material & Coating Thickness Gauges with advanced Thru-Coating Capability

Dakota CMX instruments have both basic modes - Pulse-Echo (P-E, 0-1st echo) and Echo-Echo (E-E, Thru-Coating), as well as PECT mode and other additional modes depending on the specific gauge. Includes 2 Year Limited Warranty.

Features:
  • CMX 2.0 / CMX DL: Digital and B-Scan Display
  • CMX-DL+: Digital and B-Scan Display, PLUS A-Scan
  • CMX-DL+ Color: Digital and B-Scan Display, A-Scan, PLUS high speed color display

CMX 2.0 / CMX DL 2.0

$1925 / $2325

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Displays:
B-Scan
Large Digits

Measuring Modes:
Pulse-Echo (P-E) mode
Echo-Echo (E-E) mode
Echo-Echo-Verify (E-EV) mode
Pulse-Echo-Coating (PECT) mode
Pulse-Echo Temperature Compensated (PETP) Mode
Coating Only (CT) mode

Options:
Data Logger (DL)

CMX-DL+ / CMX-DL+ Color

$3025 / $3295

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Displays:
A-Scan or High Speed Color A-Scan
B-Scan
Large Digits

Measuring Modes:
Pulse-Echo (P-E) mode
Echo-Echo (E-E) mode
Echo-Echo-Verify (E-EV) mode
Pulse-Echo-Coating (PECT) mode
Pulse-Echo Temperature Compensated (PETP) Mode
Coating Only (CT) mode

Features:
Data Logger (DL)

CMX Series Measurement Modes

Pulse-Echo-Coating (PECT) Mode - Coating On

Measures Thru-Coating, detects pitting and measures when Echo-Echo (E-E) mode fails. PECT is a unique method that provides the benefits of Pulse-Echo (P-E) and Echo-Echo (E-). Measure coated material without errors caused by the coating while being able to measure on materials with corroded and pitted back-walls.

    CMX-DL+ PECT Mode                                CMX-DL+ A-Scan PECT                        CMX Digital Display 

Echo-Echo-Verify (E-EV) Mode

The Echo-Echo-Verify (E-EV) mode measures between 3 reflections. Similar to Echo-Echo (E-E) mode, this technique is commonly used to eliminate errors from surfaces with multiple-layers of coatings. The primary benefit of this mode is that it compares the 2nd and 3rd echoes to verify that a peak jump has not occurred in order to provide an additional level of confidence in the measurement.

CMX-DL+ E-EV Mode A-Scan                  CMX E-EV Digital Display                CMX-DL+ E-EV A-Scan

Pulse-Echo Temperature Compensated (PETP) Mode - Temp Comp

The Velocity of the probes delay-lines changes as they heat up and cool down, creating a Zero Point error. PETP mode automatically corrects this problem creating a constant zero that eliminates the need for frequent Probe Zeroing.

      CMX-DL+ PETP A-Scan                        CMX-DL+ PETP Digital Display              CMX-DL+ PETP Mode

Coating-Only (CT) Mode

Coating-Only (CT) Mode is a custom hybrid combination mode using special techniques to effectively measure the thickness of coatings.

CMX CT Mode

Display Modes

A-Scan Display

A-Scan shows the signal that is being measured.

Strong Back Wall Echo and Multiple Echo

B-Scan Display

B-Scan graphs a series of measurements. This results in a profile view that is helpful to understand if the material has a single or series of pits, general corrosion, inclusion or lamination.

Consistent Back Wall Echo

 

Digital Display

The CMX Series' digital display is simple, direct reading, and can add min/max.

Digital Display with Min & Max

 

A-Scan vs. B-Scan Measurements

A-Scan B-Scan
Pitted material will show a signal coming before the Back-Wall Echo and a diminished or non-existent the Back Wall Echo, depth measurement will be inconsistent and vary point to point B-Scan showing various irregular thicknesses
An inclusion will show a signal coming before the Back Wall Echo but the Back Wall Echo is unaffected. B-Scan shows inclusions at consistent depth (plateau) 
A lamination usually at mid-wall and of consistent depth B-Scan showing a plateau of considerable length

Gauge / Mode Quick Reference Chart