Method for guaranteeing water level indicator for exactly measuring water level in cold region

The invention discloses a method for guaranteeing water level indicator for exactly measuring water level in cold region. The method for guaranteeing water level indicator for exactly measuring water level in cold region includes the following steps: (1) selecting the water level indicator mounting pipe to be injected with the oil, checking the measurement value of the water level indicator before injecting the oil and recording; (2) removing the bolt of the water level indicator on the mounting pipe, exposing the water level indicator sensor mounting pipe; (3) injecting the oil into the water level indicator mounting pipe, the oil height is 45-55cm; (4) cleaning the oil stain, using two bags of industry cotton for stopping the outlet of the mounting pipe; (5) fixing the bolt of the water level indicator on the mounting pipe again; (6) checking the measurement value after injecting the oil, comparing the value with the measurement value of the water level indicator before injecting the oil. The method has the advantages of common material, simple method, low cost and convenient maintenance, the water level measurement veracity can be obviously raised in winter and in the cold region, the outdoor water level indicator will not be frozen and the water level measurement veracity is guaranteed.