Transit Time Ultrasonic Flow Meters

Series TFXD – Dedicated Flow Meter

Series TFXD Transit Time Flow meters feature the world's most advanced non-invasive flow measurement technology available – providing a measuring system with unsurpassed accuracy, versatility, low-cost of installation and low-cost of ownership. The TFX system installs quickly onto liquid piping systems with its non-invasive, non-fouling transducers and can be configured and operational within minutes.

The TFXD is designed for permanent installation on liquid systems and is available in both blind (TFXD1) and displayed (TFXD2) configurations. TFXD2 has an oversized LCD and an integral keypad that allows field configuration without the use of a computer. Both versions include an optical interface which can be used with ULTRALINK™, an optional Windows^®-based software utility. The software utility allows simple in-field programming, calibration and software upgrades. All systems utilize Dynasonics' proprietary dual time-base time expansion software algorithm, digital cross-correlation, optically isolated input-output busses and field replaceable duplex communication I/O modules.

The TFXD flow measurement system is a cost-effective, versatile investment that can be readily configured for piping from 2" (50mm) and higher using the standard transducers. The DTTS small pipe transducers are capable of measurement on piping from 1/2" (12mm) to 2" (50mm).

Additional features of the TFXD include:

• Non-invasive clamp-on transducers that are simple and cost efficient to install. Since the transducers do not contact the liquid, fouling and maintenance are eliminated.
• Automatic Reynolds Number compensation assures accurate measurements through the laminar, transition and turbulent system flow regions.
• Low power consumption. The TFX system operates on less than 2.5 W, allowing operation on UPS, solar panel and battery operated power sources.
• The measurement range of the TFX system includes zero flow. Reading accuracy and reliability, especially at low flow rates, are improved versus mechanical, DP and vortex shedding flow meter performance.
• TFX has a flow measuring range that exceeds 40:1 (bi-directional). This feature allows the instrument to measure normal process flow rates as well as flows resulting from leaks in piping and valves.
• User configurable rate and totalizer units include: feet, gallons, ft³, mil-gal, barrels, acre-feet, lbs, meters, liters, m³, mil-liters and kg.
• Field replaceable I/O module options include: 200,000-event data logger, 4-20 mA, rate pulse, dual relay, RS232C and RS485.
• An integral optical interface and ULTRALINK™, an optional Windows^®-based software utility, provide complete control of system configuration, calibration and diagnostics – without opening the NEMA 4X (IP66) enclosure.

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