# RBEF Electromagnetic Flow BTU Meter

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> R&B Instrument Inc..

## Facts

- **Model:** RBEF
- **Category:** Electromagnetic Flow Meter
- **Canonical page:** https://www.rbflowmeter.com/products/rbef-electromagnetic-flow-btu-meter
- **Language:** en
- **Last updated:** 2026-10-18
- **Brand:** R&B Instrument Inc.

## Overview

Electromagnetic flow and energy (BTU) meter measuring conductive liquid flow and heat in one instrument, with no moving parts and no pressure loss.

## Description

### Product Overview

The RBEF Electromagnetic Flow BTU Meter combines Faraday's law flow measurement with precise temperature sensing to deliver simultaneous flow and thermal energy readings. It is designed for district heating/cooling, plant energy monitoring and HVAC billing where a single instrument must account for both volume and energy.

With no moving parts and no obstruction in the pipe, the meter is maintenance-free and introduces zero pressure loss. Fluids with conductivity down to 5 μS/cm can be measured across DN10 to DN3000.

## Specifications

| Parameter | Value |
| --- | --- |
| Diameter | DN10 – DN3000 (wafer DN10–DN100, tri-clamp DN15–DN200) |
| Accuracy | ±0.5% standard (0.6–12 m/s); ±0.25% optional (1.0–12 m/s) |
| Pressure | 0.6 / 1.0 / 1.6 / 4.0 MPa (GB/JIS/DIN); ANSI Class 150/300 |
| Temperature | 80°C standard; 120°C optional; 180°C with remote PTFE |
| Output signal | 4–20mA, pulse/frequency + alarm, RS485 Modbus; HART/PROFIBUS-DP/GPRS optional |
| Power supply | 85–265VAC or 16–36VDC |
| Protection | IP65 standard; IP67/IP68 optional |
| Connection | DIN/ANSI/JIS flange, wafer, tri-clamp |
| Wetted materials | Neoprene/PTFE/PU/PFA/Tefzel/ceramic liner; 316L, Hastelloy, titanium, tantalum electrodes |

## Key specifications

- Accuracy: ±0.5% (standard), ±0.25% (optional)
- Pipe size: DN10 ~ DN3000
- Output signal: 4-20mA, pulse/frequency, RS485 Modbus (HART/Profibus/GPRS optional)

## Features

- Simultaneous flow and thermal energy (BTU) measurement.
- Measures conductive fluids and slurries down to 10μS/cm.
- DN10–DN3000 with compact or remote transmitter.
- Standard ±0.5%, optional ±0.25% accuracy.
- 4–20mA, pulse/alarm and RS485 Modbus; HART, Profibus and GPRS optional.
- IP65/IP67/IP68 and explosion-proof options available.

## Trade information

- Minimum order quantity: 1pc
- Lead time: in 10 workdays
- HS code: 90261000

## Contact

For pricing, lead time and customization, contact R&B Instrument Inc. via the product page above.