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XRP-3000 AccuMAX™ Radiometer / Photometer for NDT by Spectronics®

XRP-3000 AccuMAX™ Advanced Digital Radiometer / Photometer Kit

Single detector with dual sensors measures both ultraviolet and visible light. Complies with ASTM specifications for MPI and FPI. Specially engineered for NDT applications.


  • Microprocessor-controlled readout unit with dual-wavelength sensor detector
  • Superior bandpass interference filter
  • Excellent cosine response
  • Large, easy-to-read LCD screen
  • Sealed sensor housing and USB connection with water-resistant adapter
  • Choice of direct or USB connection between sensor detector and readout unit
  • User-selectable, multilingual display settings. Choose from English, French, German and Spanish.

    XRP-3000 AccuMAX™ Radiometer / Photometer shown with Sensors connected to top of instrument by Spectronics®
    XR-1000 readout unit with dual-wavelength sensor detector
    connected directly to unit
    XRP-3000 AccuMAX™ Radiometer / Photometer shown with Sensors connected to top of instrument by Spectronics®
    XR-1000 readout unit with dual-wavelength sensor detector
    connected via USB Cable



    The AccuMAX™ XRP-3000 radiometer / photometer kit uses a dual wavelength UV-A / VIS sensor detector to measure both ultraviolet and visible light. Featuring automatic zeroing, integration and signal hold, the unit provides accurate readouts for UV, visible irradiance or radiance. The LCD readout features ±0.2% linearity with the sensor sending the linearity correction data to the readout unit during initial power up. To ensure consistent results, sensors are designed with superior bandpass filters while optical stacks are assembled in Class 100 clean workstations. For precise spectral coverage, high-quality interference filters are used to resist degradation.


    The rugged meter housing features a removable, rubber protective boot for better grip and to help prevent accidental breakage. It also provides superior protection against moisture contamination, shock and humidity. In addition, the XRP-3000 features a liquid- and water-resistant, sealed sensor housing with a special self-sealing ring to help eliminate light leakage.

    Simple Operation

    The XRP-3000 meter´s microprocessor is the heart of its simplicity. Just four pressure-sensitive buttons on the readout unit´s membrane keypad offer an extensive array of advanced functions. For example, to subtract ambient light, the user need only press the "ZERO" button. This activates auto zeroing, sets the value to 0 and displays relative readings of subsequent measurements. "HOLD" freezes the display thus obtained, while "INTG" displays the average UV intensity after integrating the UV energy over time. These functions and other user-selectable parameters are easily accessible through the software´s main and sub menus.


    The XRP-3000 radiometer is carefully quality-controlled to ensure that each unit has up-to-date calibration and meets stringent measurement requirements. Housed in a durable poly carbonate case, it features dependable solid-state electro-optical circuitry for long, trouble-free operation.


    The XRP-3000 is compact, lightweight and battery-operated for convenient use in the factory, field or any other location where measurements need to be taken. A slide-out panel allows for easy replacement of the unit´s 9-volt batteries


    Readout Unit (XR-1000)
    Resolution Screen 4-digit auto ranging display 128 x 64 dot pixel chip on glass transmissive monochrome LCD —2.8 in (7.1 cm) diagonal illuminated (backlit)
    Sampling Rate 7.5 Hz (single sensor)
    15 Hz (dual sensor)
    Read Update 2 Hz
    Overall Accuracy Better than ± 5% with reference to NIST standards
    Temperature Coefficient ± 0.025% / C° (0 to 50°C)
    Dual UV-A / Visible Sensor Detector (XDS-1000)
      Measurement Range Spectral Range
    UV-A Sensor 0–100 µW/cm² 320–400 nm
    Visible Sensor 0–5,300 lux (0-500 fc) 460–675 nm
    Luminance Sensor Detector (XS-555/L)
      Measurement Range Spectral Range
    Visible Sensor Detector (accessory) 0–1,000,000 cd/m²
    (0–285,000 fL)
    460–675 nm
    Power Requirements
    Battery Operation Two non-rechargeable 9V alkaline battery cells are included as standard
    Readout Unit
    Length 7.75 in (19.7 cm)
    Width 4.25 in (10.8 cm)
    Thickness 1.25 in (3.2 cm)
    Weight 0.8 lb (360 g)
    Sensor Detector
    Length 4.75 in (12.1 cm)
    Width 2.0 in (5.1 cm)
    Thickness 7/8 in (2.2 cm)
    Weight 0.22 lb (100 g)
    USB Cable 5 ft (1.5 m)

    Kit Includes:
    Water-resistant USB cable with adapter, Rubber boot, Carrying case

    AccuMAX™ (XRP-3000) PDS