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FLAME TYPE ATOMIC ABSORPTION PHOTOMETER AND FAULT INSPECTION METHOD THEREOF, AND FLAME TYPE ATOMIC ABSORPTION SPECTROSCOPY METHOD
FLAME TYPE ATOMIC ABSORPTION PHOTOMETER AND FAULT INSPECTION METHOD THEREOF, AND FLAME TYPE ATOMIC ABSORPTION SPECTROSCOPY METHOD
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机译：火焰型原子吸收分光光度计及其故障检测方法，火焰型原子吸收分光光度法
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摘要
PROBLEM TO BE SOLVED: To provide a flame type atomic absorption photometer capable of automatically inspecting a fault of the threshold of a pressure switch, reliably detecting a pressure drop in a supply channel, and improving safety.;SOLUTION: The atomic absorption photometer is provided with: supply channels 13, 14, 17 for supplying a combustion gas or a supporting gas to a burner 15; on/off valves 11, 12, 16 set up at the supply channels 13, 14, 17; pressure switches 19, 23 connected to the supply channels 13, 14 between the on/off valves 11, 12, 16 and the burner 15; and a delay time measurement means 6 for measuring delay time until the output of the pressure switches 19, 23 changes after opening or closing the on/off valves 11, 12, 16. Further, the atomic absorption photometer is provided with: an inspection means 31 for inspecting the fault of the pressure switches 19, 23 by comparing the delay time with appropriate delay time; and an interlock means 32 for controlling the lighting and extinguishment of the burner, based on the inspection result.;COPYRIGHT: (C)2009,JPO&INPIT
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