| Wavelength Range ............................................................. 200 to 800 nm Wavelength Accuracy ...........................................................± 0.15 nm Wavelength Resolution ........................................................0.025 nm Wavelength Repeatability .....................................................± 0.05 nm Optical Half Bandwidth (FWHM) ..............................................0.4 – 10 nm Stray Light Level .....................................................................< 10-8 @ 285 nm (typ)2 Spectroradiometric Accuracy (Uncertainty @ k=2).....................1% (UVA-Vis)3 3% (UVB-UVC)3 Measurement Modes ................................................................Manual， Normal， Quickscan Maximum Scan Speed (200 – 800 nm).......................................200 nm/sec (Quickscan Mode) Noise Equivalent Irradiance (W/m2nm) (typ)1 ......................... 1.7 E-7 @ 300nm 1 E-7 @ 500 nm 5.6 E-7 @ 700 nm Detector......................................................................................TE-cooled S-20 Response Photomultiplier PMT High Voltage Range............................................................0 – 1100V Communication Interface ...........................................................USB / RS-232 Operating Temperature...............................................................10 – 40°C PowerConsumption......................................................................12VDC / 3A max or 115VAC / 1.2A or 230VAC / 0.6A Dimensions...................................................................................12.75” x 11” x 8.75” Weight .........................................................................................25 lbs 1 FWHM – 1.5 nm， IS-670 6-inch Integrating Sphere， PMT at ~650V 2 Normal mode 3 Normal mode， relative to NIST Standard @ k=2 | 
