Dwyer Instruments Pty Ltd, the Asia-Pacific office of Dwyer Instruments, is an Australian company that provides VIP valve position indicators in the control valve and accessories series. These compact and easy-to-install valve position indicators use 3-wire DC LED sensing and can indicate positions at 0°, 15°, 30°, and 45°. They feature epoxy resin protection, IP67 environmental protection, etc.
The VPS2411 proximity valve position sensor is a two‑wire AC/DC device with dual LED indicators and a compact 30 × 30 mm mounting footprint. It operates over a temperature range of –13 °F to 176 °F (25‑80 °C) and is housed in a durable PBT enclosure with IP67 protection.
The manual provides technical specifications, wiring details using a 4‑pin quick‑disconnect cable, and installation guidelines. Power can be supplied from 20‑140 VAC (50/60 Hz) or 10‑30 VDC, with output provided via a dual normally‑open NPN transistor. The sensor includes built‑in short‑circuit, overload and reverse‑polarity protection. This manual is written in Chinese.
| Temperature range | -13 °F to 176 °F (25‑80 °C) |
|---|---|
| Supply voltage | 20‑140 VAC 50/60 Hz |
| Output type | Dual normally‑open NPN transistor |
| Maximum load current | <200 mA |
| Minimum load current | 5 mA |
| Leakage current | <0.8 mA |
| Switch frequency | 25 Hz |
| Switch rate | 500 Hz |
| Repetitiveness | <0.01 mm |
The sensor works from –13 °F to 176 °F (25‑80 °C).
It can be powered from 20‑140 VAC at 50/60 Hz or from 10‑30 VDC.
The maximum load current is less than 200 mA.