Measurement Principle: The UltraScan VIS-Hunterlab benchtop colorimeter uses a dual-beam system.
Geometry: Diffuse d/8° reflectance, d/8° total transmission, d/0° regular transmission.
Spectrophotometer/Colorimeter: Two 256-element diode arrays with high-resolution concave holographic grating.
Sphere Diameter: 152 mm (6 in.).
Sphere Coating: Spectraflect™ for the sphere surface, Duraflect™ for the contact surface and specular exclusion door.
Features:
- Measures reflectance, transmittance, and haze.
- Wavelength range: 360 nm – 780 nm.
- 10 nm optical resolution and reporting interval.
- Two reflectance measurement areas.
- Exceptional inter-instrument agreement.
- Automated UV calibration and control.
- Large transmission compartment open on three sides.
- Integrated EasyMatch QC software (CFR 21 Part 11)
Specifications:
- Lens Switching for LAV/SAV: Automatic.
- Specular Component: Automated inclusion (RSIN) or exclusion (RSEX) in reflectance mode.
- Spectral Range: 360 nm – 780 nm, full visible range per CIE standards.
- Wavelength Resolution: < 2 nm.
- Effective Bandwidth: 10 nm, equivalent triangular shape.
- Reporting Interval: 10 nm.
- Photometric Range: 0 to 150%.
- Photometric Resolution: 0.003% (0.01% reported).
- Light Source: Pulsed xenon lamp, filtered to simulate D65 daylight.
- Automatic UV Control:
- 400 nm cutoff filter for UV control and UV exclusion.
- Optional 420 nm cutoff filter for UV exclusion.
- Flashes per Measurement: 1 flash in LAV mode (4 flashes in SAV mode).
- Measurement Time: < 5 seconds.
- Transmission Modes: Total Transmission (TTRAN) and Regular Transmission (RTRAN).
- Transmission Compartment: Large, open on three sides, dimensions 10.2 cm D x 35.6 cm W x 16.5 cm H (4 in. D x 14 in. W x 6.5 in. H).
Port Diameter/View Diameter in RSIN/RSEX Reflectance Modes:
- Large Area View (LAV): 25 mm (1 in) illuminated/19 mm (0.75 in) measured.
- Small Area View (SAV): 9.5 mm (0.375 in) illuminated/6 mm (0.25 in) measured.
Port Diameter/View Diameter in TTRAN Transmission Modes:
- Large Area View (LAV): 25 mm (1 in) illuminated/17.4 mm (0.69 in) measured.
- Small Area View (SAV): 25 mm (1 in) illuminated/10 mm (0.40 in) measured.
Port Diameter/View Diameter in RTRAN Transmission Mode (Lens as Field Stop for All Viewing Areas):
- Large Area View (LAV): 17 mm (0.67 in) illuminated/17 mm (0.67 in) measured.
- Small Area View (SAV): 17 mm (0.67 in) illuminated/17 mm (0.67 in) measured.
Standards Conformance:
- Reflectance: CIE 15:2004, ISO 7724/1, ASTM E1164, DIN 5033, Teil 7, and JIS Z 8722 Condition C.
- Transmittance: CIE 15:2004, ASTM E1164, DIN 5033 Teil 7, and JIS Z 8722 Conditions E, G. Haze compliance per ASTM D1003 Section 8, Procedure B for spectrophotometers.
- Standards Traceability: Instrument standard assignment follows the National Institute of Standards and Technology (NIST) guidelines as described in CIE Publication 44 and ASTM E259.
