SF6 intelligent micro-water measurement instrument (also known as SF6 micro-water tester, SF6 dew point meter) is a specialized precision instrument used in power systems to detect trace moisture content in sulfur hexafluoride (SF6) gas.



SF6 gas is widely used in high-voltage switches, GIS (gas-insulated switchgear), and other equipment due to its excellent insulation and arc-extinguishing properties. However, moisture (micro-water) in the gas is an "invisible killer" that affects the safe operation of equipment. Excessive moisture not only reduces insulation strength and triggers partial discharge but also decomposes under the action of arcs to produce corrosive substances, damaging internal components of the equipment. Therefore, regular detection of micro-water content in SF6 gas is a key step in preventive testing of power equipment.

Based on the latest product information from 2025-2026, I have compiled the core functions, mainstream technologies, and operating points of this instrument for you.