V-770

Optical System	Czerny-Turner grating mount Single monochromator Fully symmetrical double-beam
Light Source	Halogen lamp, Deuterium lamp
Wavelength range	190 to 2700 nm (3200 nm, option)
Wavelength accuracy	+/-0.3 nm (at 656.1 nm) +/-1.5 nm (at 1312.2 nm)
Wavelength repeatability	+/-0.05 nm (UV-Vis), +/-0.2 nm (NIR)
Spectral bandwidth (SBW)	UV-Visible: 0.1, 0.2, 0.5, 1, 2, 5, 10 nm NIR: 0.4, 0.8, 1, 2, 4, 8, 20, 40
Stray light	1 % (198 nm KCL) 0.005 % (220 nm NaI) 0.005 % (340 nm NaNO2) 0.005 % (370 nm NaNO2) SBW: L2 nm 0.04 % (1420 nm: H2O) 0.1 % (1690 nm: CH2Br2)
Photometric range	UV-Visible: -4~4 Abs NIR: -3~3 Abs
Photometric accuracy	+/-0.0015 Abs (0 to 0.5 Abs) +/-0.0025 Abs (0.5 to 1 Abs) +/-0.3 %T Tested with NIST SRM 930D
Photometric repeatability	+/-0.0005 Abs (0 to 0.5 Abs) +/-0.0005 Abs (0.5 to 1 Abs) Tested with NIST SRM 930D
Scanning speed	10~4000 nm/min (8000 nm/min in preview mode)
Slew speed	UV-Vis: 12,000 nm/min NIR: 48,000 nm/min
RMS noise	0.00003 Abs
Baseline stability	0.0003 Abs/hour
Baseline flatness	+/-0.0002 Abs (200 - 2500 nm)
Detector	PMT, Peltier cooled PbS

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