PAUT Level 2 Training Course

Phased Array Ultrasonic Testing (PAUT) Level II training covering beam steering, sectorial (S-scan) scanning, encoded data acquisition and the zonal-discretization weld-inspection technique used on pipeline girth welds and pressure-vessel seams, per ASME Section V Article 4 and AWS D1.1 Annex. Builds on a conventional UT Level II foundation. Delivered online theory + on-site practical, ASNT NDT Level III-led. See our UT Level 2 course, TOFD training (commonly paired with PAUT), or the full training catalogue.

Atlantis NDT Integrated Stack

Atlantis NDT delivers an integrated software + services stack to inspection contractors + EPC operators + asset owners globally. Atlantis NDT ERP (NDT reports, technician certificates, procedures, crew dispatch and equipment calibration), Digital Twin platform (3D asset model + damage-mechanism heat-map), Reporting Software (mobile + offline field capture + code-aligned templates), Atlantis NDT LMS + Atlantis NDT Academy (inspector training pathway), 3D Scanning Services, Atlantis AI for NDT, CCS Inspection. Affordable, accessible, fully customizable.

Code Stack + Compliance

Audit-defensible records per ISO 9001:2015 + ISO 17020 (inspection body) + ISO 17025 (calibration lab) + ISO 17024 (personnel cert body). ASME B&PV Sections V + VIII + IX + XI, ASME B31 piping series, API 510 + 570 + 571 + 653 + 936 + 1169, NACE MR0175 + MR0103 sour-service, AMPP CIP coating, IACS Rec-20 marine + offshore. Dual-scheme inspector cert (ASNT NDT Level II/III + ISO 9712). ASNT NDT Level III final disposition + procedure approval on every engagement.

Delivery Model + Free Consultation

Three delivery models: On-site mobilisation across North America, confirmed in your RFQ; Remote procedure authoring + Level III sign-off (24-hour turnaround); Hybrid — local Level II + Atlantis Level III remote oversight. Atlantis NDT publishes no pricing — pricing varies by region, scope, delivery model, team size. Request your free 30-minute consultation with Atlantis NDT founder Anoop Rayavarapu (ASNT NDT Level III multi-method, API 653, ISO 9001 Lead Auditor). Tailored quote within 24 hours. Affordable, accessible, fully customizable.

Level 1 vs Level 2 PAUT: Where the Authority Actually Changes

Under the SNT-TC-1A and ISO 9712 qualification structure, a PAUT Level 1 technician works inside boundaries someone else has already set: they can perform calibrations and scans according to a written procedure, and they record results, but they don't select the scanning technique, don't independently evaluate indications against acceptance criteria, and don't sign off the final report. A Level 2 technician holds materially more authority. They set up and calibrate the phased array unit and probe/wedge combination for the specific inspection, select and adjust the scanning technique — focal laws, aperture, scan plan — for the joint or component being examined, interpret and evaluate the resulting indications against the governing code or specification, and organize and sign the inspection report. Level 2 technicians also direct Level 1 work on a crew.

Sizing and characterization — determining not just that a reflector exists but how large it is and what type of discontinuity it likely represents — is squarely Level 2 territory, and it's the single hardest skill to build in a PAUT course because it depends on reading amplitude, time-of-flight, and encoded positional data together rather than any one signal in isolation. Level 3 sits above this: establishing new techniques from scratch, approving procedures, and carrying ultimate technical responsibility for the written practice, but day-to-day interpretation and sign-off on production inspections is Level 2 work. That's the authority employers are actually paying for when they specify PAUT Level 2 by name instead of accepting a general UT certification.

This distinction matters most at the moment of assignment: a scheduler putting a Level 1 technician on a scope that requires independent interpretation and sign-off isn't just violating an internal policy, it's creating a code-compliance gap that shows up the moment a client or third-party auditor asks who evaluated the data and on what authority. Employers that run tight PAUT programs make the Level 1/Level 2 boundary an assignment rule, not just a training milestone.

What a Real PAUT Level 2 Course Has to Cover

Phased array training that skips the physics produces technicians who can run the software but can't troubleshoot a bad scan. A proper course starts with beam steering and focusing fundamentals — how electronically time-delayed pulsing across a multi-element probe forms and steers a beam without physically moving the probe, and how focal law calculations control focal depth and beam angle. From there it covers linear scanning, an electronic scan across the active aperture moving along the array, and sectorial (azimuthal) scanning, where the beam angle sweeps across a range of refracted angles from a fixed aperture — the technique most weld scans actually use because it captures the full weld volume from a single probe position.

Probe and wedge selection gets real weight because it drives everything downstream: element pitch, frequency, and wedge angle all have to match the material, thickness, and joint configuration being examined, and picking wrong shows up as poor resolution or missed coverage rather than an obvious error. More advanced courses introduce Total Focusing Method (TFM) built on full matrix capture (FMC) — collecting every transmit-receive element combination and post-processing to focus at every point in the image — which is increasingly referenced for flaw sizing and characterization on higher-consequence scopes. Weld scanning technique itself follows ASME Section V, Article 4 for the examination method and AWS D1.1 where phased array is used as an alternative to radiography on structural steel welds, and the course has to connect the physics to those specific code scan plans, not teach them generically. Encoded data recording — capturing probe position alongside the ultrasonic data so the full scan can be stored, played back, and independently reviewed — is the other piece that separates a Level 2 course from a basic phased array familiarization session. Our phased array training track and ultrasonic testing fundamentals course are built to feed directly into this Level 2 progression.

PAUT Level 2 vs Conventional UT Level 2: Why Employers Are Specifying It By Name

Conventional UT Level 2 and PAUT Level 2 sit under the same code framework but require materially different practical skill sets. Conventional UT typically uses a single fixed-angle transducer, and technique selection is largely about choosing the right angle and calibration block for the joint. Phased array replaces that with electronically steered, multi-angle coverage from a single probe position, which means a conventional UT Level 2 certification does not automatically qualify someone to run PAUT — the beam physics, focal law setup, and data interpretation are different enough that most written practices treat them as separate qualifications requiring separate practical exams. Acceptance criteria adoption reflects this different maturity curve too: some codes still lean on amplitude and length-based rejection criteria carried over from conventional UT, while newer editions increasingly allow flaw-sizing-based acceptance that plays to phased array's actual strength.

Employers have been shifting weld inspection scopes from radiography to phased array UT for reasons that show up directly in project economics and site logistics rather than just inspection quality: PAUT doesn't require a radiation exclusion zone, so surrounding work doesn't have to stop; it produces a permanent, encoded digital record that a second qualified reviewer can evaluate independently rather than relying on a single film read; and cycle time on a weld is generally faster than setting up and shooting film. None of that eliminates radiographic testing — radiographic testing still holds acceptance-criteria history and code recognition that PAUT is still catching up to in some jurisdictions and material thicknesses — but it explains why PAUT Level 2 has gone from a specialty add-on to a baseline requirement on many fabrication and turnaround weld scopes.

What to Verify Before Accepting a PAUT Level 2 Certification

A PAUT Level 2 card means very little without the qualification record behind it. Employers and clients should check the practical exam content specifically — a practical exam that only covers plate-and-block calibration demonstrations is not the same as one that includes actual weld scanning, sizing, and characterization against real flaws or reference reflectors. Logged hours matter too: PAUT experience hours should be tracked separately from conventional UT hours in the written practice, since the two are treated as distinct techniques in most rigorous programs, and a technician with strong conventional UT hours but minimal phased array scan hours is not equivalently qualified.

The employer sign-off itself — who reviewed the practical exam, whether a Level 3 with actual phased array competency approved the certification, and whether the written practice defines PAUT as its own qualification line rather than folding it into a generic UT category — is often the most revealing thing to ask for. Programs built through ASNT certification-aligned training and reviewed under a documented consulting engagement tend to hold up better under client audit than certifications issued against a thin, generic written practice.