Installation and usage guide for the UK series liquid level switches made by Kaifeng Instrument Factory.
This manual describes the purpose, specifications, structure, installation, and ordering information for the UK series spherical liquid level switches. It explains how the switches operate in various liquid environments, including water, wastewater, and chemical solutions, and provides wiring diagrams for control and alarm applications.
The document also includes practical examples for water supply and drainage systems, showing how to connect the switches for pump start/stop control and level alarms. Technical parameters such as operating pressure, temperature limits, cable lengths, and contact ratings are listed for each model (UK‑102, UK‑201, UK‑302, UK‑402). This manual is written in Chinese.
| Operating pressure | 0.2 MPa |
|---|---|
| Maximum medium temperature | ≤100 °C |
| Power supply voltage | 220 V AC |
| Rated current | 5 A |
| Cable length options | 4 m, 5 m, 6 m or custom |
| Contact rating | 220 V AC, 5 A |
The switch can be used at temperatures up to 100 °C.
Standard cable lengths are 4 m, 5 m, and 6 m, or a custom length can be requested.
No, the switch must not be used in strong acid, strong alkali, or organic solvent environments.