The Princo L6700 rotary paddle level controller manual provides operation principles, specifications, installation, wiring, and maintenance instructions.
The L6700 rotary paddle level controller is a mechanical level measurement device suitable for open, closed or slightly pressurized containers in industrial processes. It offers both non‑explosive and explosion‑proof versions (dIIBT4) and can be installed in various tank shapes to reliably monitor solid materials such as feed, flour, sand, metal and more.
This manual covers the controller’s working principle, key features, typical applications, technical specifications, product selection options, wiring diagram, installation and operation procedures, torque adjustment, troubleshooting, routine maintenance, and unpacking inspection. This manual is written in Chinese.
| Power Supply | AC 110V 50Hz or 220V 50Hz |
|---|---|
| Maximum Power Consumption | 1.8 W |
| Ambient Temperature Range | -10℃ to 80℃ |
| Operating Temperature | Normal, high <200℃ (special order) |
| Contact Capacity | AC 220V 5A |
| Rotational Speed | 1 R.P.M. |
| Static Torque | ≈1.0 kg·cm (adjustable 0.6–1 kg·cm) |
| Working Pressure | 0 – 0.2 MPa |
| Measurement Range (standard) | <0.5 m (default 0.25 m) |
| Explosion‑Proof Level | dIIBT4 |
The explosion‑proof version uses an isolation form and is rated dIIBT4.
It can be powered by AC 110V 50Hz or AC 220V 50Hz.
It is used for materials such as feed, flour, leather, grinding media, soil, stone, wood, rubber, beans, calcium powder, sand, pills, sawdust, coal, synthetic resin, grains, limestone, mixed sand, metal, and salt.