AccuPRO™ Dual Sensor Radiometer / Photometer

Display

• 4-digit autoranging LCD display
• 128 x 64 dot pixel chip on glass STN transmissive
• 2.25 in (5.7 cm) diagonal screen with backlight
• Reading update rate: 2 Hz

Measurement Capabilities

• UV-A (365 nm) Irradiance: 0-100 mW/cm²
• Visible (555 nm) Illuminance: 0-5,382 Lux (0-500 fc)
• Spectral Range - UV-A Sensor: 320-400 nm
• Spectral Range - Visible Sensor: 460-675 nm

Performance

• Overall Accuracy: Better than ±5% with reference to NIST standards
• Temperature Coefficient: +0.025%/°C (0 to 50°C)
• Compliant with CEN/TR 16638 standards

Designed for ASTM E2297-23

NIST-Traceable Calibration | ±5% Accuracy

Advanced Features

• Durable Design: Protective rubber housing for improved grip and impact resistance
• Specialized Optics: Superior band-pass interference filter provides excellent cosine response
• Enhanced Display: Large 4-digit autoranging LCD screen with backlight for clear readings in any environment
• Convenient Power: Rechargeable nickel-metal hydride batteries with on-board charging system

Complete Package
Includes meter with attached 3 ft (0.9 m) sensor cord, AC charger, rechargeable batteries, and protective padded carrying case for field mobility.

• AccuPRO Radiometer Photometer Readout Unit
• Dual-wavelength UV/visible sensor
• AC charger
• Padded protective carrying case
• Calibration Certificate

What is the AccuPRO™ used for? It's a rechargeable digital radiometer/photometer used to measure UV-A and visible light intensity from inspection lamps, verifying they meet the output required for fluorescent penetrant and magnetic particle inspection.

Who uses the AccuPRO? NDT technicians and quality control teams doing day-to-day lamp verification who want a rechargeable meter rather than disposable batteries. The XP-2000A is the ASTM E3022/E2297-compliant version for regulated aerospace and NDT work; the standard XP-2000 covers ASTM E2297 only.

What's the difference between the AccuPRO and the AccuPRO Plus (XP-4000)? The standard AccuPRO (XP-2000/XP-2000A) measures UV-A and visible light with a dual-wavelength sensor. The AccuPRO Plus (XP-4000) adds a 3-in-1 sensor that also measures blue light, making it the pick for labs or applications that need blue-light readings alongside standard UV-A/visible measurement; it conforms to CEN/TR 16638 for that added range.

How often does my UV radiometer need to be recalibrated, and what happens if it's past due?  Most NDT specifications (including ASTM E1417 and ASTM E1444) require UV radiometers to be calibrated at a defined interval, typically every six months, unless your governing spec or customer requirements state otherwise. A meter that is past its calibration due date should be taken out of service and recalibrated before it is used for acceptance readings, even if it hasn't been used while in storage.

Does my radiometer come with a calibration certificate, and is it NIST-traceable or ISO/IEC 17025 accredited?  Yes. Every new Spectro-UV radiometer ships with a NIST-traceable calibration certificate tied to the unit's serial number.

Q: Is there a rechargeable UV-A radiometer that meets ASTM E3022 and ASTM E2297? Yes. The
Spectro-UV AccuPRO XP-2000A digital radiometer/photometer meets ASTM E3022 and ASTM E2297, the standards that govern UV-A lamps and UV-A/visible light meters used in fluorescent penetrant and magnetic particle inspection. It runs on four rechargeable AAA nickel-metal hydride batteries with on-board charging, and measures UV-A irradiance (0-100 mW/cm²) and visible illuminance (0-5,382 lux)
with a single dual-wavelength sensor.

Q: Which meter measures UV-A, visible, and blue light? The Spectro-UV AccuPRO Plus XP-4000 uses a single 3-in-1 sensor that measures UV-A irradiance at 365 nm (0-100 mW/cm²), visible illuminance at 555
nm (0-5,382 lux), and blue light at 450 nm (0-100 mW/cm²). One meter covers black light, ambient light, and blue light checks.

Q: How do I capture the peak reading from a UV lamp? Spectro-UV AccuPRO meters have a one-touch PEAK function that holds the highest reading, plus a reset to start a new measurement. A three-button
interface toggles between UV-A, visible, and (on the XP-4000) blue light measurement modes.

Q: What is the difference between the AccuPRO and the AccuPRO Plus? The Spectro-UV AccuPRO XP-2000 has a dual-wavelength sensor that measures UV-A and visible light. The AccuPRO Plus XP-4000 has a 3-in-1 sensor that adds blue light (410-475 nm) measurement. Both have the same 0-100 mW/cm²
UV-A range, 0-5,382 lux visible range, and better than ±5% accuracy referenced to NIST standards.

Q: Should I choose the AccuPRO, AccuELITE, or AccuMAX radiometer? All three Spectro-UV radiometer lines measure UV-A (0-100 mW/cm²) and visible light with better than ±5% accuracy referenced to NIST standards. The AccuPRO is the rechargeable option, with its sensor attached by a 3 ft cord, and the XP-4000 version adds blue light measurement. The AccuELITE is also rechargeable and adds 24+ hour battery life and a faster 5-10 Hz response. The AccuMAX is Spectro-UV's gold-standard meter, with interchangeable sensor detectors for UV-C, UV-B, bilirubin, and luminance.

Q: What is the Spectro-UV AccuPRO? The Spectro-UV AccuPRO is a digital radiometer/photometer for measuring UV-A irradiance and visible illuminance in NDT, aerospace, inspection, and lab applications. It has a sealed, water-resistant sensor attached to the meter by a 3 ft (0.9 m) cord, runs on rechargeable batteries, and comes with an AC charger and padded carrying case. Models include the XP-2000, XP-2000A, and AccuPRO Plus XP-4000.

Q: How accurate is the AccuPRO radiometer? The Spectro-UV AccuPRO has an overall accuracy of better than ±5% with reference to NIST standards and comes with NIST-traceable calibration. A band-pass interference filter gives excellent cosine response, and a temperature coefficient of ±0.025% per °C (0 to 50°C) keeps readings stable across shop and field temperatures.

Q: What batteries does the AccuPRO use and how is it charged? The Spectro-UV AccuPRO runs on four rechargeable AAA nickel-metal hydride batteries, which are included. The batteries recharge on board with the included AC charger, and user-defined power save and automatic shutoff help extend battery life. The
AccuPRO is available in 120V, 230V, 240V, and 100V versions.

Q: What comes with the AccuPRO? Each Spectro-UV AccuPRO comes with the readout unit and attached sensor, four rechargeable AAA nickel-metal hydride batteries, an AC charger, and a padded carrying case.

Q: What display and language options does the AccuPRO have? The Spectro-UV AccuPRO has a backlit 2.25-inch (5.7 cm) LCD with a 4-digit autoranging display and a 2 Hz read update. Display language is
user-selectable at any operational level, with English, French, German, and Spanish available.