MiniScan EZ 4500L: Portable Spectrophotometer.

Measurement

Measurement Principle: Dual-beam spectrophotometer

Geometries:

• Directional annular 45° illumination / 0° viewing (specular component excluded)

Spectrophotometer: 256 element diode array and high resolution, concave holographic grating

Port Diameters/View Diameters

45°/0° models:

• LAV 31.8 mm (1.25 in) illuminated/25.4 mm (1 in) measured

Specular Component: Excluded on 45°/0° models

Spectral Range: 400 nm – 700 nm

Spectral Resolution: < 3 nm

Effective Bandwidth: 10 nm equivalent triangular

Reporting Interval: 10 nm

Photometric Range: 0 to 150 %

Light Source: Pulsed Xenon Lamp

Flashes per Measurement: 1 flash

Lamp Life: > 1 million flashes

Measurement Time: < 1 second from button push to measurement 2 seconds from button push to data display

Minimum Interval between Measurements: 3 seconds

Standards Conformance: CIE 15:2004, ISO 7724/1, ASTM E1164, DIN 5033, Teil 7 and JIS Z 8722 Condition C

Standards Traceability: Instrument standard assignment in accordance with National Institute of Standards and Technology (NIST) following practices described in CIE Publication 44 and ASTM E259

Performance

Inter-Instrument Agreement:

• ∆E*< 0.15 CIE L*a*b* (Avg) on BCRA II Tile Set
• ∆E*< 0.25 CIE L*a*b* (Max) on BCRA II Tile Set

Colorimetric Repeatability (20 Readings): ∆E*< 0.05 CIE L*a*b* on white tile

Physical/Electrical

Dimensions:

• Height: 13.9 cm (5.5 in.)
• Width: 10.9 cm (4.3 in.)
• Depth: 26.7 cm (10.5 in.)
• Weight: 1 kg (2.2 lbs) with batteries

Display: 5.8 cm x 5.8 cm (2.3 in. x 2.3 in.) backlit LCD, blue monochrome

Interface: USB 2.0

Power: Six AA-size alkaline batteries or nickel-metal-hydride rechargeable batteries

Battery Performance:

• With alkaline batteries approximately 4,000 measurements
• With nickel-metal-hydride batteries approximately 4,000 measurements when fully charged (varies with battery condition)

Operating Environment: 10° to 40°C (50° to 104° F), 10 % to 90 % RH, noncondensing

Storage Environment: -20° to 65°C (-5° to 150° F), 10 % to 90 % RH, noncondensing