Brand: Dakota NDT

Dakota NDT PMX2-DL Precision Thickness Gauge (PVX)

Name: Dakota NDT PMX2-DL Precision Thickness Gauge – Datasheet
Brand: Dakota NDT

Description

Overview

The Dakota NDT PMX2-DL (Part Number: Z-157-0006), widely known in the industry as the PVX, is a precision ultrasonic thickness gauge. Seven Star LLC supplies it to sectors that need micron-level resolution, such as aerospace, medical device manufacturing and precision automotive engineering. It is designed to measure very thin materials where standard corrosion gauges cannot give a stable or accurate reading.

A high-speed A-Scan display lets inspectors verify echo stability and signal integrity visually. Housed in a ruggedized aluminium enclosure, the gauge suits both laboratory and field work. The “DL” model adds an internal data logger, which makes it well suited to quality control and material verification programs across Oman and the Middle East where measurements must meet strict international standards.

Measurement Principle

The PMX2-DL offers several ultrasonic measurement modes to cover different material types. In Interface-Echo (I-E) mode it measures from the delay-line interface to the back wall, which is ideal for very thin plastics and metals. Where protective coatings are present, Echo-Echo (E-E) mode eliminates the coating thickness and reports the true metal thickness.

Its high-frequency pulser allows a resolution of up to 0.001mm, the level of detail required for turbine blades and thin-wall tubing. Real-time waveform display confirms that the inspector is reading from the correct interface, preventing false readings caused by inclusions or surface anomalies.

Engineering Design and Construction

The design of the PMX2-DL (Z-157-0006) emphasizes signal purity and environmental resistance. The case is an extruded aluminium body fitted with nickel-plated aluminium end caps, protecting the high-speed electronics in workshop and field environments. A 1/8 VGA greyscale display (240 x 160 pixels) with adjustable gain lets the operator tune the A-Scan waveform for clarity in different lighting conditions.

Professional-grade Lemo 00 connectors give a secure, low-noise link to the high-frequency precision transducers. The sealed membrane keypad offers tactile feedback and resists industrial chemicals and oils. Three standard AA cells provide up to 35 hours of continuous operation in greyscale mode, so the unit is as portable as it is precise for field inspections in Oman.

Key Features

High-Resolution Measurement: The Dakota NDT PMX2-DL provides a selectable measurement resolution down to 0.001 mm (0.0001 in) for extremely thin components.
A-Scan Waveform Display: Provides visual verification of the ultrasonic signal to ensure measurement reliability.
Multi-Mode Flexibility: Supports Pulse-Echo, Echo-Echo, and Interface-Echo for various material applications.
Internal Data Logger: The Dakota NDT PMX2-DL stores readings and waveforms for traceability and professional reporting.
Rugged Aluminium Housing: Extruded aluminium body with nickel-plated aluminium end caps, designed for long-term survival in harsh Middle Eastern industrial zones.
High-Frequency Support: The Dakota NDT PMX2-DL is optimized for use with delay-line and contact transducers from 1 MHz to 25 MHz.

Data Logging, Scanning, and Reporting

For inspection contractors and in-house QA departments, the value of the Dakota NDT PMX2-DL lies as much in what it records as in what it measures. The gauge carries 4 GB of internal memory and a data logger capable of holding on the order of 12,000 readings together with their associated waveforms, filed under alphanumeric identifiers so that a grid or a weld map can be recalled by tag rather than by position in a list. Transfer to a PC is over USB-C, and the instrument is designed to appear to the host without proprietary driver software, which removes a persistent obstacle on managed corporate laptops where installing vendor utilities requires IT approval. Because the stored waveform travels with the reading, a disputed measurement can be reviewed after the fact to confirm that the gate was placed on the correct back-wall echo rather than on a mode-converted or spurious signal.

Inspection throughput is supported by a high-speed scan function that takes measurements at roughly 32 readings per second while tracking the minimum value, which is the practical way to find the thinnest point across an area rather than hoping a fixed grid happens to land on it. A time-based B-Scan view builds a cross-sectional profile of the component as the probe is drawn across the surface, and hardware automatic gain control assists with multiple-echo and through-coating measurement where signal amplitude varies from point to point. Visual and audible alarms with independent high and low limits let the operator work to a tolerance without watching the display continuously, and a library of factory setups alongside a substantial number of user-defined setups allows the Dakota NDT PMX2-DL to be switched between material and probe combinations without recalibrating from first principles. Units are normally supplied with a NIST-traceable calibration certificate, which is what auditors look for when thickness data is entered into an integrity management or ISO-governed quality record in Oman and the GCC.

Industrial Applications

The Dakota NDT PMX2-DL (Z-157-0006) is utilized for specialized B2B precision tasks, including:

Aerospace Maintenance: Measuring turbine blade wall thickness and aircraft skin integrity using the Dakota NDT PMX2-DL.
Precision Automotive: Inspecting thin-wall engine components and fuel lines in Oman’s manufacturing sector.
Medical Equipment QC: Verifying the thickness of high-precision surgical tools and implants with the Dakota NDT PMX2-DL.
Plastics and Composites: Monitoring the wall thickness of extruded plastic tubing and thin composite panels.
Thin Metal Fabrication: Quality control for high-value metal foils and precision-machined parts in the Middle East.

Technical Specifications

Variable	Specification
Manufacturer	Dakota NDT
Model	Dakota NDT PMX2-DL (PVX)
Part Number	Z-157-0006
Visualization	High-Speed A-Scan (Rectified or RF)
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
Gain Control	110 dB range, manual and automatic (AGC)
Data Logger	Internal (Readings and Waveforms)
Display Update Rate	25 Hz screen refresh
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. 35 hours greyscale 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
Display	1/8 VGA greyscale, 240 x 160 pixels
Battery	Three AA cells (alkaline, NiCad or NiMH)

Request a Quote for Dakota NDT PMX2-DL Precision Thickness Gauge (PVX)

As the official authorized representative of Dakota NDT in Oman, Seven Star LLC supplies the PMX2-DL with technical support in Oman and the GCC, with lead time confirmed at quotation. We provide professional technical training, expert calibration, and rapid RFQ processing for the Z-157-0006. Contact our engineering sales team today for a formal quotation or to request the complete Dakota NDT PMX2-DL technical datasheet for your next precision project in Oman or the Middle East.

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About brand

Ultrasonic thickness gauging is the core of Dakota NDT, the Scotts Valley, USA maker that many inspectors still know as Dakota Ultrasonics. Its instruments measure remaining wall on corroded pipe and vessels, check precision parts, find flaws in welds and monitor bolt elongation.

Seven Star LLC is the Dakota NDT agency for Oman and the GCC. We list Dakota corrosion and precision thickness gauges, flaw detectors, transducers, delay line tips and calibration blocks, and supply them with the manufacturer's documentation.

Dakota NDT product families

Corrosion thickness gauges form the largest group: the CMX10-DL with full waveform capture, the CMX, CX and ZX series and the MX2-DL. For thin or tight-tolerance material Dakota builds the precision line, made up of the PZX1-DL, the PCX8-DL and the PMX series. The RX8-DL sonic tester, the PMX4-DL and the R9 sit in the specialty group. Flaw detection is handled by the handheld FX71-DL and the bench-top FX81-DL, and bolt tension by the BT1-DL, the BT2-DL and the MultiMax remote monitoring system. Dual element transducers pair with corrosion gauges, single element and delay line probes with precision gauges. DakMaster and DakView software take care of data transfer and reporting.

Where Dakota ultrasonic thickness gauges are used

Typical jobs are wall-loss surveys on pipelines, tanks, boiler tubes and pressure vessels in oil and gas plants and power stations, thickness checks on machined, drawn or molded parts, weld inspection in fabrication shops, and bolted joints on flanges and turbines where clamp load matters more than torque.

Ordering Dakota gauges and probes: what we need

A useful inquiry names the gauge model, the material, its expected thickness span, the surface temperature and whether the surface is coated. For transducers send the frequency, element diameter, connector type and the gauge the probe will be used with. For calibration blocks give the material and the step sizes you need. If you already own a Dakota instrument, a photo of its label and of the current probe lets us check the match against the manufacturer's documentation.

FAQ

Questions about the Dakota NDT PMX2-DL Precision Thickness Gauge (PVX)

Answers from our engineering team on installation, compatibility and integration.

01What is the main advantage of the Interface-Echo mode in the Dakota NDT PMX2-DL?

Interface-Echo mode allows the Dakota NDT PMX2-DL to measure extremely thin materials by using a delay line. The gauge measures from the end of the delay line to the back wall of the material, providing much higher precision than standard contact gauges.

02How does the A-Scan feature help during precision inspections?

The A-Scan on the Dakota NDT PMX2-DL allows the operator to see the ultrasonic pulse itself. This ensures that the Dakota NDT PMX2-DL is measuring from the correct signal peak, which is critical when dealing with complex geometries or ultra-thin materials where signal overlap can occur.

03Is the Dakota NDT PMX2-DL suitable for measuring plastics?

Yes, the Dakota NDT PMX2-DL is highly effective for plastics. Because plastics often have high signal attenuation, the adjustable gain and high-resolution capabilities of the Dakota NDT PMX2-DL ensure accurate wall thickness readings for bottles, pipes, and sheets.

04Can the Dakota NDT PMX2-DL store inspection results for audit purposes?

The Dakota NDT PMX2-DL includes a professional data logger. It can store both the numerical reading and the actual waveform for each measurement, allowing for full traceability in high-stakes industries like aerospace and medical manufacturing in Oman.

05What level of support does Seven Star LLC provide for the Dakota NDT PMX2-DL?

As an official partner, Seven Star LLC provides technical support for all Dakota NDT PMX2-DL users across the Middle East.