UV-Vis Spectrophotometer Instrument UV-Vis Spectrophotometer Instrument Model SP-2000UV/2000UVPC --Can you believe? An UV- ... ten thousand, but with power on self-testing, automatic wavelength calibration, light source auto-switching, PC controlled, etc.--In the past ... ten thousand, but with power on self-testing, automatic wavelength calibration, light source auto-switching, PC controlled, etc.In the ...