Magnafield — UVA-365-ES UV-A Light Meter with External Sensor

365 nm | Up to 20,000 µW/cm² | Backlit LED Display | Battery Indicator | 1-Meter Probe CableSKU: UVA-365-ES

Overview

The Magnafield UVA-365-ES is a professional-grade, portable UV-A light meter engineered specifically for measuring ultraviolet light intensity at 365 nm — the peak wavelength required for fluorescent magnetic particle inspection (MPI), fluorescent penetrant inspection (FPI), and a wide range of other industrial and scientific UV-A applications. The defining feature of the UVA-365-ES is its external sensor design — a separate UV-A sensing head connected to the display unit via a 1-meter flexible probe cable — allowing inspectors to measure UV-A intensity at precise locations without placing the entire meter body into the inspection area, particularly in tight, confined, or awkward access locations where a standard integrated-sensor meter cannot be positioned accurately.

With a measurement range of up to 20,000 µW/cm², the UVA-365-ES covers the full range of UV-A intensities encountered in industrial NDT inspection environments — from the minimum 1,000 µW/cm² required by ASTM E1444 and ASTM E1417 for compliant fluorescent inspection, all the way to the highest-output LED UV lamps in current use. No range switching is required at any point — the meter handles the full measurement range automatically in a single range, making readings faster and eliminating operator error from incorrect range selection.

What's Included

Key Specifications

Box Dimensions & Shipping Weight (Estimated)

Dimensions and weight are estimates based on typical packaging for UV-A light meter units of this class. Please verify with your freight forwarder prior to shipping.

External Sensor Design — The Critical Advantage

The UVA-365-ES's most important practical advantage over integrated-sensor UV meters is the physical separation between the sensing head and the display unit via the 1-meter probe cable. This design solves a common and frustrating problem encountered during fluorescent NDT inspection: placing the meter body accurately in the exact location where UV-A intensity needs to be measured — particularly when that location is:

• Deep inside a pressure vessel nozzle or bore
• In the root of a narrow weld joint or fillet
• Underneath a component on a conveyor or inspection bench
• At an angle or orientation where the display panel of an integrated meter cannot be read
• In a confined space or access-restricted area where the full meter body cannot fit

With the UVA-365-ES, the compact external sensor head is positioned precisely at the measurement location while the display unit remains in a convenient, readable position — allowing the inspector to take accurate, code-compliant UV-A intensity readings in locations that integrated-sensor meters simply cannot reach.

Key Features

Large Backlit LED Display The bright, backlit LED display is clearly readable in the darkened conditions of a fluorescent inspection area — where ambient light levels are minimized to maximize indication visibility. No struggling to read a dim screen in near-darkness.

Full Range — No Switching Required The UVA-365-ES covers the complete 0–20,000 µW/cm² measurement range in a single automatic range — from the minimum compliant inspection intensity all the way to the highest-output LED UV lamps available. The inspector simply holds the sensor at the measurement location and reads the result — no mode switching, no range selection, no chance of an out-of-range error.

Hold Feature The display hold function freezes the current reading on the display for recording — useful when the measurement location cannot be read simultaneously while holding the sensor in position, or when documenting readings for inspection records.

Battery Indicator A dedicated low battery warning on the display alerts the inspector before the battery voltage drops low enough to affect measurement accuracy — preventing out-of-tolerance readings from a depleted battery going unnoticed.

Auto Power Off Automatic power-off after a period of inactivity preserves battery life and ensures the meter is ready when needed rather than arriving at the inspection with a depleted battery.

Integrated UV Filter The external sensor head incorporates an integrated UV-A filter that blocks visible and near-UV wavelengths outside the 365 nm measurement band — ensuring the displayed reading reflects true UV-A intensity only, without contamination from visible light or other UV wavelengths.

Compliance & Standards

The Magnafield UVA-365-ES UV-A light meter is suitable for performing UV-A intensity measurements required by the following NDT codes and standards:

• ASTM E1444 — Standard Practice for Magnetic Particle Testing (minimum 1,000 µW/cm² at inspection surface)
• ASTM E1417 — Standard Practice for Liquid Penetrant Testing (minimum 1,000 µW/cm² at inspection surface)
• ASTM E3022 — Standard Practice for Measurement of UV-A and Visible Light for MPI
• ISO 3059 — Non-destructive testing: Penetrant testing and magnetic particle testing — Viewing conditions
• EN ISO 9934-2 — Non-destructive testing: Magnetic particle testing — Equipment
• AMS-2644 — Inspection Material, Penetrant
• AMS-2647 — Fluorescent Penetrant Inspection, Aerospace Applications
• NABL Traceable Calibration — certificate included

UVA-365-ES vs. UVA-365-IS — Which Model Do You Need?

For inspections on open, flat, or easily accessible surfaces, the UVA-365-IS integrated sensor model offers maximum simplicity. For any application where the measurement point cannot be directly accessed by a full meter body — pressure vessels, nozzles, confined spaces, narrow joints — the UVA-365-ES external sensor model is the correct choice.

Ideal Applications

• UV-A intensity verification for fluorescent magnetic particle inspection (MPI) — ASTM E1444 compliance
• UV-A intensity verification for fluorescent liquid penetrant inspection (FPI) — ASTM E1417 compliance
• Aerospace fluorescent inspection UV-A measurement — AMS-2644, AMS-2647
• UV-A lamp performance monitoring and periodic lamp verification checks
• Confined space and restricted access UV-A measurement — pressure vessel nozzles, bores, and weld joints
• UV sterilization system intensity monitoring
• Blue light radiation hazard monitoring in welding environments
• Photochemical and graphic arts UV-A process monitoring
• Any industrial or scientific application requiring accurate, traceable 365 nm UV-A intensity measurement

About Magnafield

Magnafield Electronics & Engineering Private Limited is a specialist Indian manufacturer of precision NDT measurement instruments and accessories, trusted by inspection professionals across the MPI, FPI, industrial inspection, and scientific measurement sectors. Magnafield's UVA meter series is recognized for its combination of measurement accuracy, practical design, and competitive value — backed by NABL traceable calibration and a 1-year manufacturing warranty.