Dakota NDT PMX3-DL Precision Thickness Gauge (PVX Colour)
Overview
The Dakota NDT PMX3-DL (Part Number: Z-157-0007), often referred to as the PVX Colour, is the flagship model in precision ultrasonic measurement. As an official authorized representative, Seven Star LLC offers the Dakota NDT PMX3-DL to engineering sectors that demand the absolute highest level of resolution and visualization. The Dakota NDT PMX3-DL combines the micron-level resolution of a precision gauge with the cross-sectional visualization of a high-speed B-Scan, making it the most capable tool for inspecting extremely thin or complex components in the Middle East. What elevates the Dakota NDT PMX3-DL above standard models is its high-definition color display, which enhances signal interpretation for aerospace turbine blades, medical tubing, and high-value automotive parts. Housed in a ruggedized aluminum enclosure, the Dakota NDT PMX3-DL provides laboratory-grade data in harsh industrial environments. The internal data logger in the Dakota NDT PMX3-DL ensures full traceability for quality control programs in Oman, allowing for the storage and export of both numerical data and full-color waveforms.
Measurement Principle
The Dakota NDT PMX3-DL utilizes ultra-high-frequency ultrasonic waves to achieve its industry-leading resolution. It supports multiple measurement modes, including Interface-Echo (I-E), Pulse-Echo (P-E), and Echo-Echo (E-E) for thru-paint applications. When using the Dakota NDT PMX3-DL in Interface-Echo mode with a delay-line transducer, the gauge measures from the front surface of the material to the back wall, allowing for the precise measurement of materials as thin as 0.127 mm (0.005 in) on plastics.
The addition of a real-time color B-Scan in the Dakota NDT PMX3-DL provides a graphical cross-section of the test piece. As the operator moves the probe, the Dakota NDT PMX3-DL draws a profile of the material thickness, making it easy to identify localized thinning or internal anomalies. This advanced signal processing in the Dakota NDT PMX3-DL is critical for the maintenance of high-pressure components and critical thin-wall structures in the petrochemical and aerospace industries across the Middle East.
Engineering Design and Construction
The engineering of the Dakota NDT PMX3-DL (Z-157-0007) focuses on maximizing signal clarity and environmental resilience. The case is an extruded aluminium body fitted with nickel-plated aluminium end caps, protecting the Dakota NDT PMX3-DL electronics in demanding workshop and field environments. The Dakota NDT PMX3-DL features a 1/4 VGA AMOLED colour display (320 x 240 pixels) that is daylight-readable, an essential feature for outdoor inspections in Oman’s high-glare environments.
Connectivity is provided by professional Lemo 00 connectors, ensuring an interference-free link between the Dakota NDT PMX3-DL and high-frequency transducers from 1 MHz to 25 MHz. The Dakota NDT PMX3-DL keypad is a sealed membrane type with tactile feedback, designed for one-handed operation while wearing protective gear. Power management is optimized to provide up to 12 hours of continuous use in colour mode on three standard AA alkaline or NiMH cells, making the Dakota NDT PMX3-DL as efficient as it is powerful for remote NDT tasks.
Key Features
High-Resolution Color B-Scan: The Dakota NDT PMX3-DL provides a real-time cross-sectional view for unmatched precision.
Extreme Resolution: Measures thin materials with a resolution of 0.001mm (0.0001in).
Multi-Mode Versatility: Includes Interface-Echo, Pulse-Echo, and Echo-Echo (Thru-Paint) for various industrial applications.
Large Memory Data Logger: The Dakota NDT PMX3-DL stores readings and waveforms in color for professional audit trails.
High-Frequency Support: Optimized for precision transducers from 1 MHz to 25 MHz for the thinnest material measurements.
Rugged Aluminum Case: Extruded aluminium body with nickel-plated aluminium end caps, built for the toughest field conditions in the Middle East and Oman.
Industrial Applications
The Dakota NDT PMX3-DL (Z-157-0007) is the primary choice for specialized B2B precision tasks, including:
Aerospace Turbines: Measuring wall thickness of high-value turbine blades with the Dakota NDT PMX3-DL.
Precision Automotive: Inspecting thin-wall fuel lines and engine castings in Oman’s manufacturing sector.
Medical Manufacturing: Quality control for high-precision surgical components and thin-wall tubing.
Coated Thin Metals: Measuring base metal thickness through protective paint using the Dakota NDT PMX3-DL Echo-Echo mode.
Composite Testing: Evaluating the thickness of thin fiberglass and carbon fiber panels in the Middle East maritime industry.
Display, Pulser and Data Logging Capability
The feature that separates the Dakota NDT PMX3-DL from the grayscale PMX2-DL in the same PMX family is its quarter-VGA AMOLED colour screen, which renders 320 × 240 pixels at a 60 Hz refresh rate against the 240 × 160 pixel, 25 Hz grayscale panel of the base model. AMOLED emission rather than backlit transmission is what keeps the waveform readable at wide viewing angles and in direct Gulf sunlight, and the higher refresh rate is what makes live A-Scan and B-Scan movement legible as the probe is dragged. Beyond Pulse-Echo, Echo-Echo and Interface-Echo, the gauge also offers Echo-Echo Verify for contact transducers and Interface-Echo-Echo for delay line and pencil probes, giving five distinct modes for separating coating from substrate on thin, painted or clad components.
Signal control on the Dakota NDT PMX3-DL is genuinely instrument-grade: the square-wave pulser is selectable at 100, 150 or 200 volts with spike, thin and wide pulse-width settings, the receiver offers manual and automatic gain control with selectable damping of 35, 50, 75, 300, 600 or 1500 ohms, and single-element contact, delay line and pencil transducers from 1 to 25 MHz connect through LEMO “00” quick-disconnect sockets. For inspection programmes, readings are logged into either alphanumeric grid files or sequential auto-identifier files, inaccessible locations can be marked OBSTRUCT so the report shows why a point is blank, screens can be captured as .tif bitmaps, up to 64 custom setups and three adjustable gates can be stored, and scan mode captures 250 readings per second for fast sweep coverage. Data transfers to the Windows PC interface over USB-C, and every gauge ships with factory calibration traceable to NIST and MIL-STD-45662A — the documentation trail that Oman’s refinery and aerospace quality departments expect to see with an incoming precision instrument.
Technical Specifications
| Variable | Specification |
| Manufacturer | Dakota NDT |
| Model | Dakota NDT PMX3-DL (PVX Colour) |
| Part Number | Z-157-0007 |
| Display Type | 1/4 VGA AMOLED colour display |
| Visualization | Real-Time A-Scan and Color B-Scan |
| Measurement Modes | Interface-Echo, Pulse-Echo, Echo-Echo |
| Resolution | Selectable: 0.01 mm (0.001 in) or 0.001 mm (0.0001 in) |
| Range (Interface-Echo) | 1.27 mm to 25.4 mm on steel (from 0.127 mm on plastics) |
| Range (Pulse-Echo) | 1.0 mm to 254 mm on steel |
| Range (Echo-Echo) | 0.15 mm to 12.7 mm on steel |
| Accuracy | Dakota NDT does not publish a single fixed accuracy figure; measurement resolution is selectable to 0.001 mm (0.0001 in) |
| Velocity Range | 1250 to 9999 m/s |
| Memory Capacity | 4GB Internal (Thousands of readings with waveforms) |
| Gain Control | 110 dB range, manual and automatic (AGC) |
| Display Update Rate | 60 Hz |
| Transducer Support | 1 MHz to 25 MHz |
| Connectors | Dual Lemo 00 |
| Case Material | Extruded aluminium body with nickel-plated aluminium end caps |
| Battery Life | Approx. 12 hours colour mode on three AA alkaline or NiMH cells |
| Operating Temperature | -10°C to 60°C (14°F to 140°F) |
| Weight | 383 g (13.5 oz) with batteries |
| Dimensions | 63.5 x 165 x 31.5 mm (2.5 x 6.5 x 1.24 in) |
| Warranty | 2-year limited gauge warranty / 90-day probe warranty |
| Battery | Three AA cells (alkaline, NiCad or NiMH) |
| Display Resolution | 320 x 240 pixels AMOLED, 60 Hz refresh |
| Measurement Modes (full) | Pulse-Echo, Echo-Echo, Echo-Echo Verify, Interface-Echo, Interface-Echo-Echo |
| Pulser | Square wave, 100 / 150 / 200 V, spike / thin / wide pulse width |
| Receiver Damping | 35, 50, 75, 300, 600, 1500 ohm selectable |
| Gain Control Mode | Manual and automatic gain control (AGC) |
| Data Log Formats | Alphanumeric grid or sequential auto-identifier; .tif screen capture; OBSTRUCT marking |
| Custom Setups / Gates | 64 custom setups, 3 adjustable gates |
| Scan Mode | 250 readings per second |
| PC Interface | USB-C to Windows PC software |
| Calibration Traceability | NIST and MIL-STD-45662A |
Request a Quote for Dakota NDT PMX3-DL Precision Thickness Gauge (PVX Colour)
Seven Star LLC is your official authorized partner for the Dakota NDT PMX3-DL Precision Thickness Gauge. We provide professional technical training, expert calibration, and rapid RFQ processing for the Z-157-0007. Contact our engineering sales team today for a formal quotation or to request the complete Dakota NDT PMX3-DL technical datasheet for your next precision project in Oman or the Middle East.
Related Products
Dakota NDT is a specialist supplier of advanced nondestructive testing equipment including ultrasonic thickness gauges, flaw detection systems, bolt-tension and load monitoring devices. Its products are designed for critical inspection tasks in oil & gas, power generation, manufacturing and infrastructure projects, where accuracy, reliability and speed are paramount. With a diverse portfolio covering handheld, bench-top and wireless solutions, Dakota NDT supports operators in meeting rigorous standards and shortening inspection cycles. Through our representation in the GCC and Middle East via Seven Star LLC, customers gain direct access to genuine Dakota NDT instrumentation and local support.
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