• Ideal for retrofit, chilled water and other HVAC applications.


• May be used to measure clean liquids as well as those with small amounts of suspended solids or aeration (e.g., surface water, sewage).


• Bi-directional flow measurement system. Totalizer options include forward, reverse and net total.


• Modbus RTU over RS485 communications; Ethernet connection includes BACNet®/IP, EtherNet/IPTM and Modbus TCP/IP protocols.


• Large, easy-to-read digital display. Rugged, aluminum enclosure ensures a long service life in harsh environments.


• Certified for hazardous area installation in North America and Europe.


• Rate-Total backlit display


• 4-20mA Output


• USB Programming Port


• RS485 Modbus Network Connection


• Remote Totalizer Reset

• The technology has inherent advantages over alternate devices including low-cost installation, no pressure head loss, no moving parts to maintain or replace, no fluid compatibility issue, and a large, bi-directional measuring range that ensures reliable readings even at very low and high flow rates.

• The TFX Ultra is available as an energy flow meter used in conjunction with dual clamp-on RTDs. The energy flow meter measures energy usage in BTU, MBTU, MMBTU, Tons, kJ, kW, MW and is ideal for retrofit, hydronic and other HVAC applications.

• For pipe/tubing sizes of 2" (50 mm) and lower, TFX Ultra is available with a clamp-on transducer mounted and wired directly to the flow meter display/electronics enclosure. This design provides a convenient installation in areas where the user requires local indication. PVC constructed transducers are rated to 185 °F (85 °C) and CPVC are
rated to 250 °F (121 °C).

TFX Ultra Benefits Over Traditional Flow Meters

• Reduced material costs: clamp-on sensor eliminates the need for in-line flanges, pipe fittings, strainers, and filters.

• Reduced installation time: the TFX Ultra may be installed and fully operational within minutes.

• Reduced maintenance costs: with no moving parts, there is nothing on the TFX Ultra to wear down – no repair kits
or replacement parts are needed.

• No need to shut down the process for installation