Failure analysis of digital underground fluid observation instrument

This paper introduces the basic working principle of SWY-II digital water level instrument, analyzes and summarizes the operation failure types and corresponding solutions of several kinds of underground fluid observation instruments for earthquake precursors based on years of working experience. The types of operation faults can be roughly divided into: network communication fault, power supply system fault, instrument software and hardware fault, etc. the corresponding solutions are: restart the equipment, replace the power supply and communication cable, replace the spare parts of the standby machine, maintain the circuit board components of the instrument, reset and upgrade the software program, etc. The specific solutions for the fault of the observation instrument can provide technical support for the continuous and reliable observation data of the underground fluid, and provide certain reference for the maintenance personnel of the earthquake precursor instrument in the maintenance of the instrument.