EN38 39SpecificationSpectralengine:i1Pro 3 PLUS: i1® technology (holographic diffraction grating with 128 pixeldiode array) with built-in wavelengths checkSpectral range: 380 - 730 nmPhysical sampling interval: 3.5 nmOptical resolution: 10 nmSpectral reporting: 380 nm ... 730 nm in 10 nm stepsMeasurement frequency in scanningmode: 400 measurements per secondOptics: Measurement geometry: 45º/0º ring illumination optics, ISO 13655:2017Measurement aperture: 8 mm (0.31”) diameter(effective measurement aperture during scanning is depending on thepatch size and measurement speed)Illumination spot size: 12 mm (0.47”)Light source: i1Pro 3 LED Illumination (including UV)Reflectancemeasurement: spectral reflectance [dimensionless]Measurement conditions: M0: UV included - ISO 13655:2017 M1: D50 - ISO 13655:2017M2: ISO 13655:2017 M3: Polarization - ISO 13655:2017OBC: Optical Brightener Compensation (OBC) with i1Profiler softwareCalibration: Manual on external ceramic white referenceMeasurement background: white, ISO 13655:2017; for measurements on backup boardMinimal patch size in spot mode(Width x Height):14 x 14 mm (0.55” x 0.55”)Minimal patch size in scanning mode(Width x Height):Maximum scan length:16 x 16 mm (0.63” x 0.63”) with i1iO16 x 16 mm (0.63” x 0.63”) with sensor ruler20 x 16 mm (0.79” x 0.63”) without sensor ruler20 x 16 mm (0.79” x 0.63”) with sensor ruler in M3 Mode22 x 16 mm (0.87” x 0.63”) without sensor ruler in M3 Mode515 mm (20.28")Inter-Instrument-Agreement: 0.4 ∆E00* average, 1.0 ∆E00* max.(deviation from X-Rite manufacturing standard at a temperature of 23ºC(73.4ºF) on 12 BCRA tiles (D50, 2º))Short-term repeatability: 0.1 ∆E94* on white (D50,2°, mean of 10 measurements every 3 s onwhite)Emissionmeasurement: spectral radiance [mW/nm/m2/sr], luminance [cd/m2]Measurement range: 0.2 - 5000 cd/m2 on a typical LCD-MonitorShort-term repeatability: x,y ±0.002 typ. (5000 K, 80 cd/m2)Ambient lightmeasurement:i1Pro 3 PLUS: spectral irradiance [mW/nm/m2], illuminance [lux]cosine corrected diffusor light measurement headInterface: USB 1.1