The PMX2-DL and PMX3-DL from Dakota NDT are advanced precision thickness gauges with A-Scan and B-Scan display: 100 MHz DSP platform, adjustable pulser, 110 dB of gain and five measurement modes. The PMX2-DL has a grayscale display, the PMX3-DL a color AMOLED display.
- A-Scan and B-Scan: waveform and cross-section
- 5 measurement modes: P-E, E-E, E-E Verify, I-E, I-E-E
- 100 MHz DSP platform: adjustable pulser 100/150/200 V
- 110 dB gain: manual and automatic (AGC), TDG
- Transducers 1–25 MHz: single, delay line, pencil
- 4 GB memory: grid or sequential log, screen capture
- Display: grayscale (PMX2-DL) or color AMOLED (PMX3-DL)
The PMX2-DL and PMX3-DL represent the high end of the Dakota precision thickness gauges: the A-Scan display shows the ultrasonic waveform, while the B-Scan provides a cross-section of the thickness, for accurate assessment across a wide range of materials.
The two models share the same electronics (100 MHz DSP, adjustable pulser, 110 dB of gain, 5 measurement modes, 4 GB memory): the main difference is the display – grayscale on the PMX2-DL, color AMOLED on the PMX3-DL with 60 Hz refresh.
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Technical characteristics
| Feature | PMX2-DL | PMX3-DL |
| Instrument type | Precision thickness gauge with A-Scan and B-Scan display | Precision thickness gauge with A-Scan and B-Scan display |
| Platform | 100 MHz DSP with FPGA technology, 8-bit digitizer | 100 MHz DSP with FPGA technology, 8-bit digitizer |
| Pulser | Adjustable square wave 100 / 150 / 200 V; variable pulse width (spike, thin, wide) | Adjustable square wave 100 / 150 / 200 V; variable pulse width (spike, thin, wide) |
| PRF | up to 250 Hz | up to 250 Hz |
| Gain | 110 dB, manual and automatic (AGC) | 110 dB, manual and automatic (AGC) |
| TDG | Time dependent gain, with variable start and slope | Time dependent gain, with variable start and slope |
| Damping (impedance) | 35 / 50 / 75 / 300 / 600 / 1500 ohm | 35 / 50 / 75 / 300 / 600 / 1500 ohm |
| Measuring mode | Pulse-Echo, Echo-Echo, Echo-Echo Verify, Interface-Echo, Interface-Echo-Echo | Pulse-Echo, Echo-Echo, Echo-Echo Verify, Interface-Echo, Interface-Echo-Echo |
| Display views | A-Scan (RF and rectified), B-Scan, large digits, stability bar graph | A-Scan (RF and rectified), B-Scan, large digits, stability bar graph |
| Display | 1/8 VGA grayscale (240×160), EL backlight | 1/4 VGA color AMOLED (320×240) |
| Screen refresh | B/W 25 Hz | color 60 Hz |
| Pulse-Echo range (contact) | steel 1 mm – 9.14 m | steel 1 mm – 9.14 m |
| Echo-Echo range (contact) | steel 25.4–914.4 mm | steel 25.4–914.4 mm |
| Interface-Echo range | steel 1.27–25.4 mm; plastic from 0.127 mm | steel 1.27–25.4 mm; plastic from 0.127 mm |
| Resolution | 0.01 mm or 0.001 mm (selectable) | 0.01 mm or 0.001 mm (selectable) |
| Velocity range | 309.88–18,542 m/s | 309.88–18,542 m/s |
| Transducers | Single, delay line and pencil (1–25 MHz), LEMO 00 connector, 1.2 m cable | Single, delay line and pencil (1–25 MHz), LEMO 00 connector, 1.2 m cable |
| Memory | 4 GB internal (grid or sequential log), .tif screen capture | 4 GB internal (grid or sequential log), .tif screen capture |
| Setups / gates / alarm | 64 setups, 3 gates, threshold alarm with LED and beeper | 64 setups, 3 gates, threshold alarm with LED and beeper |
| Scan mode | 250 readings/s, indicates the minimum thickness | 250 readings/s, indicates the minimum thickness |
| Connectivity | USB-C (Windows PC interface) | USB-C (Windows PC interface) |
| Power supply | 3 × AA; ~35 h (B/W) with alkalines; USB-C | 3 × AA; ~12 h (color) with alkalines; USB-C |
| Operating temperature | −10 … +60 °C | −10 … +60 °C |
| Dimensions | 63.5 × 165 × 31.5 mm | 63.5 × 165 × 31.5 mm |
| Weight | approx. 383 g (13.5 oz, with batteries) | approx. 383 g (13.5 oz, with batteries) |
| Certification | NIST and MIL-STD-45662A traceable | NIST and MIL-STD-45662A traceable |
| Warranty | 2 years limited | 2 years limited |
Part numbers, accessories and spare parts
Codes for ordering the PMX2-DL / PMX3-DL and accessories. Part numbers will be added when available.
Instrument – complete kit
| Part number | Product code | Description |
| — | PMX2-DL | Precision thickness gauge with A/B-Scan and grayscale display |
| — | PMX3-DL | Precision thickness gauge with A/B-Scan and color AMOLED display |
Accessories
Photo
Part number
Product code
Description
—
Transducer
Single element transducer (delay line or contact) with quick-release LEMO connectors
—
Couplant
Coupling gel for ultrasound transmission
—
USB-C cable
USB-C cable for data download to a PC (.csv) and power supply
—
Carrying case
Carrying case for the instrument and its accessories
Technical documentation
| Document | Type |
| PMX2-DL / PMX3-DL data sheet | Datasheet (PDF) |
| PMX2-DL manual | Manual (PDF) |
| PMX3-DL manual | Manual (PDF) |
Frequently asked questions
The display: the PMX2-DL has a 1/8 VGA grayscale screen, the PMX3-DL a 1/4 VGA color AMOLED display with 60 Hz refresh. The electronics, the modes and the memory are identical.
The A-Scan shows the ultrasonic waveform for assessing the echoes; the B-Scan provides a cross-section of the thickness along the scan.
Pulse-Echo, Echo-Echo, Echo-Echo Verify, Interface-Echo and Interface-Echo-Echo, with single, delay line and pencil transducers.
Yes: 4 GB of internal memory with grid or sequential log and .tif screen capture, with download via USB-C.
Contacts & Information
Contact for general information : info@roder.it
Machine Vision Division of RODER : www.rodervision.com
RODER Instruments Division : www.innovacheck.com
More about RODER : about us
The information contained in this website is provided for information purposes only. Although it has been prepared with the greatest care, it does not constitute a contractual offer or a binding commitment to supply. It may contain transcription, translation or typographical errors. For precise and up-to-date information, please contact our company directly.
Note: Some images on this website have been intentionally generated using artificial intelligence (AI). This is because, for many applications and projects, photographs of the actual installation or system cannot be disclosed owing to confidentiality agreements, contractual clauses and non-disclosure agreements (NDAs).
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