Defelsko PosiTector 200 Series Ultrasonic Coating Thickness Gauge

Overview

The Defelsko PosiTector 200 Series Ultrasonic Coating Thickness Gauge is an engineered solution for non-destructive measurement of coating thickness on non-metallic substrates—including concrete, wood, plastic, ceramic, and glass—where conventional magnetic or eddy-current gauges are inapplicable. Utilizing high-frequency ultrasonic pulse-echo technology, the instrument transmits a short-duration acoustic wave through the coating layer; the time-of-flight between the front-surface echo and the substrate interface echo is precisely measured and converted into thickness using calibrated sound velocity parameters. This principle enables reliable quantification of both total coating thickness and individual layer thicknesses (on multi-layer systems) when configured with appropriate probe types and firmware versions (B/A and C/A models). Designed for field and laboratory use, the PosiTector 200 meets internationally recognized performance benchmarks for repeatability, traceability, and environmental resilience.

Key Features

• Direct-measurement architecture requiring no routine zero or span calibration for most standard applications—reducing operator dependency and procedural overhead.
• Ergonomic single-hand interface with intuitive menu navigation and tactile feedback via LED status indicators—enabling confident operation in noisy industrial environments.
• Ruggedized housing with over-molded rubber bumper, IP5X-rated ingress protection against dust and incidental liquid exposure, and chemically resistant display surface suitable for solvent-, acid-, and oil-rich settings.
• High-stability transducer design delivering rapid response (<100 ms per reading) and consistent resolution across the full operating range.
• Factory-calibrated to NIST-traceable standards; each unit ships with an individual calibration certificate compliant with ISO/IEC 17025 requirements for accredited testing laboratories.
• Integrated real-time statistics engine computing mean, standard deviation, and count for active data sets—supporting on-the-spot quality assessment during inspection campaigns.

Sample Compatibility & Compliance

The PosiTector 200 is validated for use on low-density, acoustically conductive substrates where ultrasonic energy propagates with minimal attenuation. Typical compatible base materials include cured concrete (compressive strength ≥20 MPa), kiln-dried hardwoods and softwoods, rigid PVC and ABS plastics, vitrified ceramics, and annealed glass. It is not intended for metallic substrates or highly porous, fibrous, or highly attenuative surfaces (e.g., untreated fiberboard, aerated concrete, or rubber). All models conform to ISO 2808 (Paints and varnishes — Determination of film thickness) and ASTM D6132 (Standard Test Method for Non-Destructive Measurement of Dry Film Thickness of Applied Organic Coatings Using an Ultrasonic Gauge), ensuring methodological alignment with global QA/QC protocols. The device supports audit-ready documentation practices required under GLP and GMP frameworks, including timestamped data logging and exportable records traceable to operator ID and measurement location.

Software & Data Management

Data acquired by the PosiTector 200 is stored internally in structured group-based format—up to 1,000 groups containing 10,000 total readings—with automatic timestamping via built-in real-time clock. Export is supported via USB or optional infrared wireless link to Windows-based PosiSoft software, which provides advanced reporting tools, statistical process control (SPC) charting, customizable PDF report generation, and database integration capabilities. PosiSoft maintains full audit trail functionality—including user login history, parameter change logs, and data modification timestamps—in accordance with FDA 21 CFR Part 11 requirements for electronic records and signatures. Raw waveform data (available on B/A and C/A models) can be reviewed and exported for forensic analysis of interfacial integrity or delamination risk assessment.

Applications

• Quality assurance of protective coatings on concrete infrastructure (e.g., bridge decks, parking structures, wastewater treatment tanks).
• Verification of decorative and functional finishes on architectural wood products and MDF panels.
• In-process thickness monitoring of thermal barrier coatings on ceramic substrates in aerospace component refurbishment.
• Field validation of fire-retardant intumescent coatings applied to structural timber elements.
• Non-destructive evaluation of anti-graffiti and self-cleaning coatings on glass façades and glazed tile installations.
• Compliance verification for LEED MR credit documentation requiring third-party verified dry-film thickness reporting.

FAQ

Can the PosiTector 200 measure coating thickness on steel or aluminum substrates?
No. This instrument is specifically designed for non-metallic substrates. For metallic substrates, Defelsko’s PosiTector 6000 series (magnetic induction / eddy current) is recommended.
Is velocity calibration required for each new substrate type?
Yes—accurate thickness calculation depends on correct sound velocity input. The PosiTector 200 includes preloaded velocity values for common materials and allows user-defined velocity entry or two-point calibration using reference standards.
Does the device support GLP-compliant data export?
Yes. When used with PosiSoft software and configured with user authentication, it generates 21 CFR Part 11–compliant reports with electronic signature capability and immutable audit trails.
What is the warranty coverage and service support structure?
Defelsko provides a standard 2-year limited warranty covering parts and labor. Global service centers offer certified recalibration, firmware updates, and technical support aligned with ISO/IEC 17025 accreditation requirements.
Are replacement probes and calibration standards available separately?
Yes. A full range of application-specific transducers (e.g., high-resolution for thin films, low-frequency for thick coatings), delay-line probes for elevated temperature use, and NIST-traceable plastic shims are available through authorized distributors.