1. Couplant 3. Testing Material
1. Couplant 2. Coating 3. Test Material
1. Couplant 2. Coating 3. Testing Material
All 3 measuring modes featured in all CMX instruments
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.
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)
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)
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.
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.
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.
Coating-Only (CT) Mode is a custom hybrid combination mode using special techniques to effectively measure the thickness of coatings.
CMX CT Mode
A-Scan shows the signal that is being measured.
Strong Back Wall Echo and Multiple Echo
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
The CMX Series' digital display is simple, direct reading, and can add min/max.
Digital Display with Min & Max
| 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 |  |
