The ERUN series water quality laboratory testing instruments of secondary water supply plant developed and produced by Erun Group are designed with reference to the "GB 17051". The water quality testing instrument for drinking water supply stations is suitable for testing the water quality of drinking tap water, including pressurized equipment and high-level water tanks (pools) combined water supply, variable frequency speed regulation water supply, stacked water supply, and pressure water supply. The laboratory water quality analyzer of the secondary water supply plant can mainly test parameters including chromaticity, turbidity, pH, total coliforms, aerobic bacterial count, residual chlorine, total hardness, chloride, nitrate nitrogen, volatile phenols, cyanide, arsenic, hexavalent chrome, iron, manganese, lead, ammonia nitrogen, nitrite nitrogen, permanganate index, etc.

The ERUN series laboratory water quality analyzer of urban and rural drinking water plant developed and produced by Erun Group for urban and rural centralized water supply plant is a solution designed with reference to the "Sanitary Standard for Drinking Water Plant". The urban and rural water station drinking water testing instrument include turbidity, chromaticity, visible substances, CODMn, aerobic bacterial count, total coliforms, thermotolerant coliforms, residual chlorine. The laboratory water quality analyzer of centralized water supply plant is suitable for testing the quality of drinking tap water in urban and rural areas such as large-scale water supply projects and small-scale centralized water supply projects.