JYB Manuals

JYB JYB-714 Liquid Level Automatic Control Relay Service Manual

This manual describes the JYB-714 liquid level automatic control relay, a device used for automatic water‑level control in water towers and storage tanks. It outlines the relay’s operating principle, the three‑electrode detection method, and how the relay switches supply or drainage circuits based on liquid level.

The document includes detailed technical specifications, wiring diagrams for supply and drainage versions, installation dimensions, environmental limits, and maintenance procedures. It also lists the relay’s compliance with GB14048.5 and IEC60947‑5‑1 standards and warns against use with poorly conductive liquids such as oil or flammable chemicals. This manual is written in Chinese.

Covers: Technical Parameters · Installation Conditions · Model and Specification Overview · Wiring Diagrams · Physical Dimensions · Structure and Operating Principle