Hydrological Instrument Environmental Testing

Hydrological parameter monitoring is the basis for rational utilization of water resources, and water area hydrological parameter data involves my country's core economic interests. Hydrological instrument environmental testing can observe the adaptability and tolerance of products under various environmental conditions, eliminate early failures and improve product quality. At the same time, it provides verification data and effective information for failure analysis to ensure the accuracy of hydrological parameters. Hydrological instrument environmental testing can assess the adaptability of hydrological instruments to the working environment, transportation and storage environment.
Zhongke Testing Reliability Experiment Center has environmental testing capabilities for various hydrological instruments, and provides professional environmental testing services such as low temperature testing, high temperature testing, constant humidity and heat testing, and air pressure testing for hydrologic instruments.

Instruments, equipment or devices for observing hydrological elements, collectively referred to as hydrological instruments, are mainly divided into: water level instruments, flow velocity instruments, precipitation instruments, water temperature instruments, ice ice instruments, soil water instruments, sediment testing instruments, water quality sampling instruments, hydrological testing equipment and measuring tools, counting display and recording instruments, communication telemetry instruments and equipment, data conversion and processing instruments
Specifically, it includes: hydrological patrol vehicles, automatic hydrological reporting devices, water level sensors, water level needles, remote thermometers, semiconductor thermometers, neutron water meters, suspended sediment samplers, ultrasonic detectors, etc.

Hydrological instruments need to conduct the following tests according to the type of use environment:
Class A indoor instruments: low temperature test, high temperature test, constant humidity and heat test, air pressure test, salt spray test, vibration test, impact test, free drop test, transportation vibration test
Class B outdoor instruments: low temperature test, high temperature test, constant humidity and heat test, air pressure test, solar radiation test, salt spray test, rain test, sand and dust test, water pressure test, vibration test, impact test, free drop test, transportation vibration test
Class C underwater instruments: low temperature test, high temperature test, air pressure test, salt spray test, rain test, water pressure test, vibration test, impact test, free drop test,
Class D shipboard instruments: low temperature test, high temperature test, constant humidity and heat test, air pressure test, solar radiation test, salt spray test, rain test, sand and dust test, vibration test, impact test, free drop test, collision test, tilt and swing test, transportation vibration test
Class E vehicle-mounted instruments: low temperature test, high temperature test, constant humidity and heat test, air pressure test, solar radiation test, salt spray test, rain test, sand and dust test, vibration test, impact test, free drop test, collision test, transportation vibration test

GB/T 9359-2016 Basic environmental test conditions and methods for hydrological instruments
GB/T 1771 Paints and varnishes - Determination of resistance to neutral salt spray
GB/T 2421.1 Environmental testing of electrical and electronic products Overview and Guide
GB/T 2421.2 Environmental testing of electrical and electronic products Information for specification preparers Test summary
GB/T 2422-2012 Environmental Testing Guidelines for Writing Test Methods Terms and Definitions
GB 4208-2008 Shell protection level (IP code)
GB/T 4796 Classification of environmental conditions for electrical and electronic products Part 1: Environmental parameters and their severity
GB/T 19677 Hydrological Instrument Terminology and Symbols
GB/T 50095 Basic Hydrological Terminology and Symbol Standards