| 摘要 |
PROBLEM TO BE SOLVED: To provide a water level detector for extending service life of a probe used for detecting water level in a reactor container.SOLUTION: The water level detector measures the position of liquid face of a liquid in a reactor container. The water level detector includes: a probe which is disposed in the reactor container; a power supply that supplies a DC current to the probe; a current measurement circuit that measures the DC current flowing on the probe; and a current limit circuit that limits the magnitude of the DC current supplied to the probe based on the concentration electrolyte of the liquid. |
