OPTICAL ANALYZER WITH POWER-SAVING MODE FUNCTION

PROBLEM TO BE SOLVED: To provide an optical analyzer capable of automating operation of shifting to and exiting from an energy-saving mode and achieving power-saving effect and reduction of the start-up time of a light source at the same time.SOLUTION: An optical analyzer is constituted of optical analysis means 1 including a light source 11 and devices 12 other than the light source, power supply means 2 and control means 3. The power supply means 2 includes a switch 23 for the light source and a switch 24 for the devices. The control means 3 comprises a memory 31 for storing a scheduled time in accordance with an analysis schedule, a timer 32 and a CPU for issuing ON/OFF instructions of respective switches. The switch 23 for the light source can be switched to a plurality of power-saving modes S, Sin which power supply ratio is more than 0% and less than 100%. The CPU keeps the switch 23 for the light source in a power-saving mode Swith a lower level of power supply until a mode switching time T, switches it to a power-saving mode Swith a higher level of power supply at the mode switching time T, and turns it ON at a start time Tof a start-up.