Dynasonics^® TFX Ultra^®

Clamp-on ultrasonic flow and energy meters for liquids

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Ultrasonic flow meter TFX Ultra with EasyRail sensors

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Reduced material cost: 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 or maintenance due to clamp-on-sensor design

Medium:
Water, Lubricant oil

max. flow:
from 3.18 up to 5260284 l/min

Temperature:
from -40 up to 176 °C

Branch:
Water & waste water industry, Chemical industry, Pharmaceutical industry, Food & beverage industry, General industry, Oil industry, Aerospace industry, Automotive industry

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General information

TFX Ultra® ultrasonic flow and energy meters clamp onto the outside of pipes and do not contact the internal liquid. 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.

TFX Ultra® is available in a variety of configurations that permit the user to select a meter with features suitable to meet particular application requirements.

The TFX Ultra® is available in two versions: a stand-alone flow meter, and 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, chilled water and other HVAC applications.

Technical data

Liquid types	Most clean liquids or liquids with small amounts of suspended solids
Pipe sizes	DN 15 up to DN 3000
Accuracy	±1 % of reading resp ±0.003 m/s
Power supply	AC: 95 – 264 VAC 47 – 63 Hz @ 17 VA max. resp. 20 – 28 VAC 47 – 63 Hz @ 0,35 A max.
	DC: 10 – 28 VDC @ 5 W max.
Ambient conditions	-40 °C up to +85 °C
Velocity range	Bi directional 0,03 up to 12 m/s
Display	Two line LCD, LED backlit

Sensors TFX Ultra® Easy Rail system	small / big

Pipe size	DN 50 - DN 150 / DN 50 - 300
Enclosure	POM
Pipe surface temperature	up to +120 °C
Sensor frequency	1 MHz

Sensors TFX Ultra®

Pipe size	DN 15 – DN 3000
Enclosure	DTTR = Ultem®
	DTTC/DTTL / DTTN (IS) / DTTN/DTTL = CVPC, Ultem®
	DTTH = PTFE
	DTTS = PVC, Ultem®
Pipe surface temperature	DTTR = -40 °C up to +121 °C
	DTTC / DTTL = -40 °C up to +90 °C
	DTTN = -40 °C up to +90 °C
	DTTH = -40 °C up to +176 °C
	DTTS = PVC: -40 °C up to +60 °C
	DTTC = CPVC: -40 °C up to +85 °C
Sensor frequency	DTTS / DTTC = 2 MHz
	DTTR / DTTN / DTTH = 1 MHz
	DTTL = 500 KHz

Videos

Dynasonics® Easy Rail System

TFX Ultra - Measuring principle and applications

Measuring principle

Heat meters

The heat meters use the highly precise ultrasonic transit time measuring principle, for which two ultrasonic sensors are externally mounted on the pipeline and connected to the electronic. The ultrasonic sensors work alternately as transmitter and receiver, and mutually send ultrasonic signals. During these transmissions, the respective signal transit times of the to-and-from signals (t1, t2) are measured.

The electronic measures the difference of the transit time of the ultrasonic signals going with and against the flow direction t1 and t2. These signals are either decelerated or accelerated by the medium flow. The difference produced in both signal transit times is proportional to the flow rate and is used together with the pipeline geometry for a precise flow calculation