Electromagnetic Thermal Flow meter (BTUMeter)
EMF Magnetic Flow Meter Heat Meter Hot Water Temperature Flow Meter Electromagnetic Heat Flow Meter
- ▪Measurement Principle: Electromagnetic / Faraday’s Law
- ▪Application: Hot Water Flow & Thermal Energy Measurement
- ▪Medium: Conductive Water / Hot Water
- ▪Flow Velocity Range: 0.1–15 m/s
- ▪Accuracy: ±0.5% standard; ±0.2% optional
- ▪Calibration: 5-Point Calibration
Product Overview
Calibration & Accuracy Calibrated on a high-precision flow test bench with accuracy up to ±0.2%. Electromagnetic flowmeters are calibrated at 5 measurement points to ensure reliable and repeatable performance. Calibration laboratory is approved according to CNAS ISO/IEC 17025:2017. Calibration is performed using the MT method water flow standard calibration device. Calibration can be carried out using mass method, comparison method, and pulse method. Standard accuracy: ±0.5% High-accuracy option: ±0.2%
Working Principle: The electromagnetic flow section generates a magnetic field across the measuring tube. As conductive hot water passes through the magnetic field, a voltage proportional to the water velocity is induced and detected by electrodes. The transmitter converts this signal into flow velocity and volumetric flow rate. For heat measurement, temperature sensors measure the inlet and outlet temperatures. The electronics use the measured flow rate, temperature difference and the relevant fluid properties to calculate the thermal energy transferred.
Technical Specifications
| Measurement Principle | Electromagnetic / Faraday’s Law |
|---|---|
| Application | Hot Water Flow & Thermal Energy Measurement |
| Medium | Conductive Water / Hot Water |
| Flow Velocity Range | 0.1–15 m/s |
| Accuracy | ±0.5% standard; ±0.2% optional |
| Calibration | 5-Point Calibration |
| Structure | Compact / Remote |
| Output | 4–20 mA, Pulse |
| Communication | RS485, HART, PROFIBUS |
| Power Supply | 85–250 VAC / 20–36 VDC / 3.6 V Lithium Battery |
| Display | Digital LCD |
| Temperature Measurement | Inlet & Outlet Temperature |
| Temperature Resolution | Up to 0.01°C |
| Heat/Energy Units | kJ, MJ, GJ, kWh, MWh |
| Sensor | Electromagnetic Flow Sensor with Temperature Sensors |
| Temperature Sensor | PT1000 / RTD, depending on configuration |
| Connection | Flanged / Threaded, depending on model |
| Protection | IP65 / IP67 / IP68, depending on configuration |
| Liner Options | PTFE, PFA, Rubber and other options |
| Electrode Options | SS316L, Hastelloy, Titanium, Tantalum and others |
| No Moving Parts | Low maintenance and minimal mechanical wear |
| Typical Applications | Heating, HVAC, district heating, boiler circulation and energy monitoring |
Key Features
- ✓Electromagnetic flow measurement for conductive hot water
- ✓Integrated flow and thermal-energy measurement
- ✓Hot-water temperature measurement
- ✓Temperature difference measurement
- ✓High measurement stability and repeatability
- ✓No moving parts in the measuring tube
- ✓Low pressure loss
- ✓Digital LCD display
- ✓Instantaneous flow and cumulative flow display
- ✓Thermal energy / heat consumption measurement
- ✓Compact or remote transmitter configuration
- ✓Multiple communication and output options
Applications
- ▸Technical Specifications
- ▸ParameterSpecification
- ▸Measurement Type
- ▸Electromagnetic Flow & Thermal Energy
- ▸Medium
- ▸Hot Water / Conductive Liquids
- ▸Flow Velocity
- ▸0.1–15 m/s
- ▸Structure
- ▸Compact / Remote
- ▸Flow Accuracy
- ▸±0.5% standard
- ▸High Accuracy Option
- ▸±0.2%
- ▸Temperature Measurement
- ▸Inlet & Outlet Temperature
- ▸Temperature Resolution
- ▸Up to 0.01°C, depending on configuration
- ▸Output Signal
- ▸4–20 mA, Pulse
- ▸Communication
- ▸RS485, HART, PROFIBUS
- ▸Power Supply
- ▸85–250 VAC / 20–36 VDC / 3.6 V Lithium Battery
- ▸Display
- ▸Digital LCD
- ▸Measurement Principle
- ▸Faraday's Law of Electromagnetic Induction
- ▸Calibration
- ▸5-Point Calibration
- ▸Standard Calibration Accuracy
- ▸±0.5%
- ▸Optional Calibration Accuracy
- ▸±0.2%