| 摘要 |
PROBLEM TO BE SOLVED: To prevent an error in analysis data due to a malfunction in detecting the liquid level. SOLUTION: Plural electrodes 9 are disposed in a piping connected to a probe 3, and the electric conductivity of wash water is measured by the electrodes 9. According to the measured value, if the wash water reaches such a conductivity as to have an effect upon the capacitance type liquid level detection, an alarm is given to request replacement of washing water and washing in the piping, or the replacement of wash water and washing in the piping are automatically performed by a computer in the device. |
