verified connector library

Dynasonics TFX Ultra ultrasonic flow meter

Register map(s) for this device, each at the trust rung it earned. Addresses are 0-based as on the wire; word order and scaling are only confirmed at the hardware-verified rung.

interop-verified

Read + decoded cleanly over a real network vs an independent third-party Modbus test server (transport and framing; reads are remapped into the server's register window, so the map's own addresses are NOT exercised). Does NOT prove word order/scaling against the actual device.

pointaddress (0-based)typescaleunit
signal_strength699F32BE1
flow_rate701F32BE1
net_totalizer703F32BE1
positive_totalizer705F32BE1
negative_totalizer707F32BE1
temperature_1_c709F32BE1°C
temperature_2_c711F32BE1°C
diff_temp_1_2_c713F32BE1°C
diff_temp_2_1_c715F32BE1°C
abs_diff_temp_c717F32BE1°C
temperature_1_f719F32BE1°F
temperature_2_f721F32BE1°F
diff_temp_1_2_f723F32BE1°F
diff_temp_2_1_f725F32BE1°F
abs_diff_temp_f727F32BE1°F
flow_rate_gpm729F32BE1GPM
flow_rate_lpm731F32BE1LPM
flow_rate_cfh733F32BE1CFH
flow_rate_cmh735F32BE1CMH
flow_rate_fps737F32BE1FPS
flow_rate_mps739F32BE1MPS

link settings as documented (unverified): RTU/TCP; default 9600 8N1; Baud rates up to 9600 and cable lengths to 5000 feet are supported without repeaters or end-of-line resistors.

⚠ THE POWER SUPPLY BOARD CAN HAVE LINE VOLTAGES APPLIED TO IT, SO DISCONNECT ELECTRICAL POWER BEFORE OPENING THE INSTRUMENT ENCLOSURE. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)
terminalsscrew-down barrier terminals
A/B polarityRS485 B(+), RS485 A(-), RS485 Gnd
terminationwithout repeaters or end-of-line resistors
connectorscrew-down barrier terminals, RJ connector for Ethernet, USB 2.0 Type B connector
isolationAC-powered 4-20mA output is isolated from earth ground connections; totalizer pulse output is opto-isolated
shield/groundconnect the shield on one end to a good earth-ground connection
wiring notesWire gauges up to 14 AWG can be accommodated in the transmitter terminal blocks.
protocol notesWhen a USB programming cable is connected, the RS485 and frequency outputs are disabled.
powerAC: 95…264 V AC 47…63 Hz @ 17 VA max. or 20…26 V AC 47…63 Hz @ 0.35 A max. DC: 10…28 V DC @ 5 W max.
environmentAmbient temperature limits –40 …185° F (–40…85° C). NEMA Type 4 (IP-65)
accuracyDTTR/DTTN/DTTH/DTTL: ±1% of reading or ±0.01 FPS (0.003 MPS), whichever is greater
certificationsUL 61010-1, CSA C22.2 No. 61010-1, EN 61010-1, Class I Div. 2 Groups C, D, T4; Class II, Division 2, Groups F, G, T4; Class III Division 2; CE
doc revisionTTM-UM-00136-EN-08 (March 2018)

generated by gemini:gemini-3.5-flash · harvested from https://www.instrumart.com/assets/Dynasonics-TFX-Ultra-manual.pdf (Badger Meter (Dynasonics)); manual-faithful — the document's claims, panel risk: ELEVATED — panel is not confident; proved interop-verified on 2026-06-11 · recorded 2026-06-11

The trust ladder

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