# RBDOF-F Fixed Doppler Ultrasonic Flow Meter

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> R&B Instrument Inc..

## Datos

- **Modelo:** RBDOF-F
- **Categoría:** Medidor de Caudal Ultrasónico
- **Página canónica:** https://www.rbflowmeter.com/es/products/rbdof-f-fixed-doppler-ultrasonic-flow-meter
- **Idioma:** es
- **Última actualización:** 2026-10-18
- **Marca:** R&B Instrument Inc.

## Resumen

Fixed Doppler ultrasonic flow meter for open-channel and partially-filled pipe flow with dual-depth area-velocity technology.

## Descripción

### Product Overview

The RBDOF-F is a fixed-installation Doppler flow meter for open channels and partially-filled pipes carrying dirty liquids, slurries and stormwater. Dual-depth technology combines pressure and backup ultrasonic level measurement, and self-transmitting/receiving mode keeps working at very low water levels.

Automatic flow calculation supports circular, rectangular, trapezoidal and U-shaped channels, with RS485/Modbus and 4–20 mA outputs for remote monitoring.

## Especificaciones

| Parámetro | Valor |
| --- | --- |
| Type | Fixed Doppler area-velocity, open channel / partially filled pipe |
| Accuracy | Velocity ±1%~±3%; water depth ±3 cm |
| Level range | Pressure type 0.02–3 m or 0.02–10 m |
| Temperature | Operation -5°C ~ +60°C; storage -25°C ~ +80°C |
| Output signal | RS485 (Modbus RTU), 4–20 mA, RS232 (model dependent) |
| Power supply | 10–30 VDC (12 VDC / 24 VDC options) |
| Protection | IP68 (sensor); IP65 (transmitter) |

## Especificaciones clave

- Precisión: Velocity ±1%~±3%, level ±3 cm
- Diámetro de tubería: Open channel / partially filled pipe
- Señal de salida: RS485 Modbus RTU, 4-20mA, RS232 (model dependent)

## Características

- Dual-depth technology with pressure and backup ultrasonic level measurement.
- Self-transmitting/receiving mode enables measurement at very low water levels.
- Automatic flow calculation for circular, rectangular, trapezoidal and U-shaped channels.
- RS485/Modbus and 4–20 mA outputs for remote data transmission.
- IP68 sensor and rugged PU cable withstand sediment up to 20 g/L.
- Signal strength indication detects siltation, dry pipe or high loading.

## Información comercial

- Cantidad mínima de pedido: 1pc
- Plazo de entrega: in 10 workdays
- Código HS: 90261000

## Contacto

Para precios, plazos y personalización, contacte con R&B Instrument Inc. desde la página del producto.