| 摘要 |
PURPOSE:To actuate a countermeasure device for abnormality when the pressure in a flow passage in which a carrier liquid of a measuring material is passed rises abnormally and to prevent liquid leakage or the defective measurement and short circuit occurring in the liquid leakage by providing a pressure sensor in the flow passage. CONSTITUTION:A meter for determining blood components is constituted of a tank 2 for contg. a carrier liquid 1, a metering pump 3, an injector 4, a liquid flow damper 5, a sensor part 6, a waste liquid tank 7 and a flow passage 8 connecting successively these components. The sensor part 6 has an electrode 9 for detecting a material to base detected, an electrode 10 for detecting a disturbing material and counter electrode 11 thereof. The respective electrodes are connected via an ammeter 13 to a constant voltage generating circuit 12. A pressure sensor 24 is screwed to the injector 4 to detect the pressure in the flow passage. The output from the sensor is compared with a reference value and when the output exceeds the reference value, a countermeasure device for abnormality is actuated. The inspector takes the due measure to eliminate the cause in accordance with the operation of said countermeasure device for abnormality. |
