Measured Parameter Directional hemispherical reflectance (DHR)
Method Integrated total reflectance in a band for a given angle of incidence
Measured Value Absolute reflectance (0–1)
Calculated Value Total reflectance, absorptance
Wavelength Bands 850nm, 905nm, 940nm, and 1550nm nm
Angle of Incidence 20° from normal incidence °
Calibration Coupon Glazed Ceramic
Accuracy ±0.02
Repeatability ±0.005 units
Beam Spot Size 0.50 inches
Sample Size and Geometry Flat ≥0.5 in. diameter; Curved ±0.5 in. concave; ±12 in. concave
Warm Up Time 90 seconds
Time Between Measurements 2 seconds
Sample Temperature -90 ~ 90 °C (ambient or heated/cooled)
Operating Temp 0 ~ 40 °C
Storage Temp -25 ~ 70 °C
Run Time 2 hours on one battery; battery easily replaced with continuous operation after battery replacement
Power Source Rechargeable battery (standard environmentally friendly NiMH)
Battery Recharge Time 1 hour
IR Source Kanthal filament operated at about 1000°C
Weight 4.7 lb
Form Factor 11.5H × 9.0W × 3.7D in (29.21 cm × 22.86 cm × 9.44 cm)
Operator Interface LCD graphics screen, 1/4 VGA, touch screen, software buttons, trigger switch in handle
Diagnostics On-screen status and signal monitor. Signal values stored with data. Raw data collection and display.
Data Format Data files can be opened and post processed with Excel or a text processor
Data Storage Removable SanDisk (SD) card
Export Control ECCN 3A999F