The ONICON FT-3500 – A Revolution in Flow Measurement

ONICON FT-3500 blog featured

The release of the ONICON FT-3500 Insertion Electromagnetic Flow Meter arrives on the heels of ONICON’s last insertion meter release, the FT-3400, both of which are a replacement for the F-3500. Designed for seamless integration, the FT-3500 boasts advanced networking capabilities. The FT-3500 provides the user with a single point of communication for BACnet MS/TP, BACnet IP, MODBUS RTU, or
MODBUS TCP/IP. Interval data for energy and volume are provided along with operating status and diagnostic data. Utilise BACnet and MODBUS communication protocols via IP or RS485 for effortless data exchange. The FT-3500 series takes the ease of insertion style meters and combines it with the trusted accuracy of electromagnetic flow measurement. This versatility makes it ideal for a wide range of flow measurement applications including; chilled water, heating hot water, condenser water, domestic/municipal water and water/glycol.

ONICON FT-3500 body

Key Features ONICON FT-3500

ONICON FT-3500 is a powerful solution for HVAC applications, combining cutting-edge technology and convenience. ​Key features include:

  • Effortless Communication: Leverage BACnet® and MODBUS® protocols for seamless network integration (IP and RS485).
  • Intuitive Remote Touchscreen: The remote transmitter features a user-friendly touchscreen display for easy access to measurement values, application details, and configuration settings.
  • Field-Configurable: Conveniently modify pipe size and flow range directly on-site through the intuitive menu.
  • Comprehensive Energy Measurement: Calculate thermal energy consumption (BTU) for informed decision-making.
  • Advanced Diagnostics: Ensure optimal performance with built-in diagnostics for wiring connections, waveform analysis, and verification.
  • Multiple Outputs: Gain flexibility with 2 analogue outputs, 3 digital outputs, and 1 frequency output.

ONICON FT-3500 pipe

FT-3500 Transmitter Touch Screen Display: User Experience Redefined

The FT-3500 prioritises user experience with its advanced remote transmitter featuring a convenient touchscreen display. This intuitive interface allows for effortless interaction with measurement data, application specifics, and configuration settings. Additionally, the transmitter offers seamless communication via native BACnet and MODBUS protocols over IP or RS485, along with dual analogue outputs for flow or energy rate.

ONICON FT-3500 - trans dim

BTU (Energy) Meter Option

When ordered with the thermal energy (BTU) meter option, the FT-3500 becomes a complete thermal energy measurement system providing accurate flow, energy, and temperature data.

Ready to Measure From the Box

Every FT-3500 arrives factory configured and features ONICON’s unique hot-tap design which allows for easy insertion or removal from the pipe without system shutdown, making it ideal for retrofits. The no-moving parts design works well in difficult flow measurement applications and requires little maintenance. Whether measuring flow rate or or energy consumption, the FT-3500 Insertion Electromagnetic Flow Meter is a reliable and accurate choice.


Datasheet/Catalogue Sheet