Measured ParameterDirectional hemispherical reflectance (DHR)MethodIntegrated total reflectance in a band for a given angle of incidenceMeasured ValueAbsolute reflectance (0–1), Diffuse ReflectanceCalculated ValueTotal Solar Reflectance, Solar AbsorptanceWavelength Bands (Optimized)335–380 / 400–540 / 480–600 / 590–720 / 700–1100 / 1000–1700 / 1700–2500 nmASTM Standard(s)C1549 / E903Angle of Incidence20° from normal incidence °Calibration CouponSpecular, DiffuseAccuracy±0.02Repeatability±0.005 unitsBeam Spot Size0.25 inchesSample Size and GeometryFlat ≥0.5 in. diameter; Curved ±0.5 in. concave; ±12 in. concaveSample Temperature-90 ~ 100 °C (ambient or heated/cooled)Operating Temp0 ~ 40 °CStorage Temp-25 ~ 70 °CPower SourceRechargeable battery (NiMH)Run Time2 hours on one battery; battery easily replaced with continuous operation after replacementVIS-NIR SourceTungsten filament, temperature controlled by userWeight4.7 lbForm Factor / Size11.5H × 9.0W × 3.7D in (29.21 cm × 22.86 cm × 9.44 cm)Operator InterfaceLCD graphics screen, 1/4 VGA, touch screen, software buttons, trigger switch in handleDiagnosticsOn-screen status and signal monitor. Signal values stored with data. Raw data collection and display.Data FormatData files can be opened and post processed with Excel or a text processorData StorageRemovable SanDisk (SD) cardExport ControlECCN 3A999F