Electromagnetic BTU Energy Meter
Approved by:CE, SIL-3, ATEX Explosion-proof certification
AFT’s Electromagnetic BTU Meter provides accurate, maintenance-free energy metering for heating, cooling, and chilled-water systems. Combining electromagnetic volumetric flow sensing with high-precision temperature differential detection, it continuously calculates the true thermal energy transferred through your pipeline.
It continuously calculates energy output using real-time flow and ΔT values, providing dependable data for billing, performance benchmarking, and energy optimization, reducing energy waste and supporting transparent cost allocation.
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Integrated thermal energy computation: Real-time calculation of heat/cool energy (kWh or GJ).
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Dual PT1000 temperature sensors: High-precision inlet/outlet measurement.
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±0.2% flow accuracy: Electromagnetic sensing ensures repeatability and no pressure loss.
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Wide communication compatibility: RS485 / Modbus / BACnet / M-Bus for BMS integration.
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Maintenance-free design: No moving parts, corrosion-resistant liners.
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Configurable outputs: Analog 4–20 mA / Pulse / Digital.
| Parameter | Specification |
|---|---|
| Nominal Diameter: | DN10 ~ DN3000 |
| Flow range: | 0.05 ~ 10 m/s |
| Flow accuracy: | ±0.5% of reading |
| Pressure Rating: | 0.6 ~ 1.6 MPa |
| Medium temp. : | –25 °C ~ +180 °C |
| Energy accuracy: | ±0.1% totalized |
| Display: | LCD with real-time flow, ΔT, and energy data |
| Power supply: | 85~250V AC, 45~63Hz, 20V DC, 36V DC |
| Communication: | 4~20 mA / Pulse / RS485 / Modbus / Hart protocol, etc |
| Protection class: | IP68 / IP67 / IP65 (depending on model) |
| Liner Material: | PTFE, F46, PFA, Silicon fluoride, etc. |
| Electrode Options: | 316L, Hastelloy B, Hastelloy C, Titanium, Tantalum, etc. |
| Explosion-proof: | Ex d mb IIC T6 Gb |
Supports multiple communication protocols:
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RS485 / Modbus RTU — for industrial SCADA systems
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BACnet MSTP / M-Bus — for HVAC and BMS integration
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Analog 4–20 mA and pulse outputs — for local PLC input
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Optional GPRS / IoT connectivity — for remote monitoring
All parameters are configurable via user-friendly LCD or remote configuration software.
Turning Accurate Measurement into Energy Efficiency
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Reduce energy waste: ±2% totalized accuracy enables precise billing and optimization.
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Optimize plant performance: Real-time thermal load data supports smarter chiller sequencing.
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Lower maintenance costs: No mechanical wear parts; long service life.
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Compliance-ready: Meets EN 1434 and MID for energy metering audits.
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Sustainability benefit: Enables verified energy savings for ESG reporting.
Optimized for Energy Monitoring in Industrial and Commercial Systems. AFT BTU meters are deployed across:
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District heating and cooling plants — accurate thermal billing
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HVAC systems in commercial buildings — real-time energy efficiency tracking
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Industrial process heat recovery systems — performance monitoring
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Energy management systems (EMS) — totalized BTU/heat flow integration






