



Ultrasonic Flow Meter




Ultrasonic BTU Meter
The IOTAFLOW Ultrasonic BTU Meter, intelligently integrated with the Apator FAUN electronic BTU calculator, offers a seamless solution for high-accuracy thermal energy metering in HVAC systems, district heating, chilled water networks, and industrial energy monitoring. Leveraging transit-time ultrasonic flow technology, it guarantees zero pressure drop, long-term stability, and maintenance-free operation—even in harsh conditions.
The FAUN calculator enhances functionality with its large, clear display, two-button operation, and full configuration capabilities via PC or local input. It computes energy usage (BTU, kWh, GJ, MWh) by processing flow data from the ultrasonic sensor and paired Pt100/Pt500 temperature inputs. The calculator features robust data logging, two independent tariff registers, configurable communication modules, and up to 12 years of battery life—all in line with MID and EN-1434 C/E1/M1 compliance
Applications