Fangyuan Instruments DR360 Digital Coating Thickness Gauge for Zinc, Paint and Metallic Layers

Overview

The Fangyuan Instruments DR360 Digital Coating Thickness Gauge is a precision electromagnetic induction (for non-ferrous coatings on ferrous substrates) and eddy current (for non-conductive coatings on non-ferrous metals) dual-mode instrument engineered for reliable, repeatable thickness measurement of industrial protective layers. It is calibrated and validated for quantitative assessment of zinc galvanizing layers on steel, paint films on automotive body panels, enamel coatings on appliances, and anodized or electroplated metallic finishes on aluminum and stainless-steel components. Designed to meet the dimensional stability and thermal drift resistance requirements of workshop and production-floor environments, the DR360 delivers consistent performance across ambient temperatures from 0 °C to 50 °C and relative humidity up to 90% non-condensing.

Key Features

• Dual-sensor architecture: Integrated ferrous (Fe) and non-ferrous (NFe) probe modules with automatic substrate recognition — no manual mode switching required.
• High-resolution digital display: 4-digit LCD with backlight, showing real-time thickness values in micrometers (µm) with 0.1 µm resolution in the 0–99.9 µm range and 1 µm resolution above 100 µm.
• Extended measurement range: 0–1250 µm, covering standard hot-dip galvanizing (typically 50–150 µm), heavy-duty epoxy primers (150–500 µm), and thick thermal-spray metal coatings (up to 1250 µm).
• Calibration traceability: Factory-calibrated against NIST-traceable reference standards; supports two-point (zero and span) user calibration using certified foil and shunt plates.
• Rugged industrial housing: IP63-rated enclosure with rubber overmolded grip, drop-tested to 1.2 m onto concrete per IEC 60068-2-32, and compliant with EMC Directive 2014/30/EU.
• Battery life: Up to 30 hours continuous operation on two AA alkaline cells; low-battery indicator and auto-power-off after 5 minutes of inactivity.

Sample Compatibility & Compliance

The DR360 is validated for use on flat, curved (minimum radius ≥15 mm), and slightly rough surfaces (Ra ≤ 6.3 µm). It conforms to ISO 2178 (non-magnetic coatings on magnetic substrates) and ISO 2360 (non-conductive coatings on non-magnetic conductive substrates). While not certified to ASTM B499 or ASTM D7091, its measurement methodology and uncertainty profile align with the repeatability (≤±3% of reading or ±1 µm, whichever is greater) and reproducibility criteria specified in those standards. The device supports GLP-compliant documentation when paired with optional PC software export (CSV format), enabling audit-ready records for quality control departments operating under ISO 9001 or IATF 16949 frameworks.

Software & Data Management

The DR360 stores up to 1,000 measurement records internally, each tagged with date/time stamp and sequential ID. Optional USB-C data cable enables direct transfer to Windows-based PCs running Fangyuan’s free DR-Link Manager v2.1 software. This application provides statistical analysis (mean, min/max, standard deviation), histogram generation, pass/fail threshold configuration, and batch report export in PDF or Excel-compatible CSV. All exported files include embedded metadata (instrument ID, operator code, calibration date), supporting basic 21 CFR Part 11 readiness when used with organizational access controls and electronic signature policies.

Applications

• Quality assurance of hot-dip galvanized structural steel (e.g., transmission towers, bridge girders, guardrails) per EN ISO 1461.
• In-process verification of powder coating thickness on HVAC ductwork, agricultural machinery frames, and electrical enclosures.
• Final inspection of zinc-nickel plating on automotive fasteners and brake calipers per SAE AMS2417.
• Maintenance screening of corrosion-resistant linings in chemical process equipment prior to hydrostatic testing.
• Supplier qualification audits requiring documented thickness compliance for aerospace primer systems (e.g., MIL-PRF-23377).

FAQ

Does the DR360 require annual recalibration?
Yes — we recommend recalibration every 12 months or after 10,000 measurements, whichever occurs first, using certified reference standards traceable to national metrology institutes.
Can it measure coatings on irregular or threaded surfaces?
It is optimized for planar and gently curved surfaces. Measurements on sharp edges, threads, or radii below 15 mm may yield reduced accuracy due to field distortion; use with caution and verify via cross-section microscopy where critical.
Is the probe replaceable if damaged?
Yes — the integrated Fe/NFe probe module is a field-replaceable unit (FRU) with part number FY-DR360-PROBE-R. Replacement requires no firmware reflash.
Does it support Bluetooth or Wi-Fi connectivity?
No — the DR360 uses wired USB-C data transfer only. Wireless functionality is not implemented to maintain EMI immunity in high-noise industrial settings.
What substrates are incompatible with this gauge?
Non-metallic substrates (e.g., plastic, wood, concrete), highly magnetized steels (e.g., hardened tool steels), and substrates with conductive undercoats beneath the measured layer will produce invalid readings and are outside the scope of ISO 2178/2360 validation.