JWY fork type liquid level switch is a new type of level limit switch. It has the characteristics of strong durability, wide applicability, maintenance free, no need to adjust, LED display status and working conditions. It can be widely used in petrochemical, light industry, food, water treatment and other industries for level upper and lower limit alarm and control.
This manual describes the JWY tuning fork level switch, a vibration‑based level detection device used in industries such as petrochemical, food, and water treatment. It explains the operating principle, product features, and typical application scenarios.
The document includes technical specifications, recommended installation methods (NPT thread or flange, side or vertical mounting), wiring diagrams, adjustment procedures for vibration amplitude, and troubleshooting guidance for low‑ and high‑level alarm faults. This manual is written in Chinese.
| Operating temperature range | -25°C to 60°C |
|---|---|
| Supply voltage | 220VAC 50Hz or 24VDC |
| Contact capacity | 220VAC 0.5A |
| Current output signal | 0 mA or 10 mA |
| Vibration frequency | 200 Hz |
| Vibration amplitude | 0.5 mm |
| Damping delay | 2 seconds |
| Free swing delay | ≤ 7 seconds |
| Device length (compact type) | 142 mm |
| Maximum extension length | 4000 mm |
| Weight | ≈ 1570 g |