| 摘要 |
<p>There are provided a cleaning device (20), which has a discharge nozzle (21a) that discharges cleaning liquid, a suction nozzle (21b) that is inserted into a cleaning tank (30) or a reaction vessel (7a) along with the discharge nozzle to suck cleaning liquid or reaction liquid in the cleaning tank or the reaction vessel, and a discard vessel (33) that is connected to the suction nozzle via a pipe (31) to discard the cleaning liquid or the reaction liquid; a method for detecting cleaning nozzle clogging; and an automatic analyzer. The cleaning device (20) includes a detecting unit (36) that detects whether an electrostatic capacity at least between the suction nozzle and an electrode (32) provided in a middle of the pipe exceeds a predetermined threshold value; a determination unit that determines that the suction nozzle is clogged when a time difference between a time, at which the electrostatic capacity exceeds the predetermined threshold value when the suction nozzle is not clogged, and a time, at which the electrostatic capacity exceeds the predetermined threshold value at the time of determination, is not less than a predetermined time difference threshold value; and a control unit (45) that stops the discharge nozzle from discharging the cleaning liquid into the reaction vessel when the determination unit determines that the suction nozzle is clogged.</p> |
