Portable ultrasonic flowmeter

Portable USF PORTAFLOW-C

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This ultrasonic portable flowmeter consists of two sensors clamped on the pipe (DN 13 to 6000 mm, according to sensors) and of a digital converter operating on internal battery or on power line. A graphical printer for screen hard copy is available in option. The standard converter have IP64 protection.

According the used sensor, it is possible to measure a flow in a metallic or plastic tube of diameter from 13 to 6000mm.

It can measure bi-directional flow speeds from -32 to +32 m/s. The accuracy of measure is ± 1% of flow full scale and response time is within 1 second.

To adapt itself to every types of flow measurement of liquid, the PORTAFLOW-C is equipped with an algorithm of compensation of the temperature and pressure variations by measure of the speed of sound. An anti-bubble algorithm (ABM) allows maintaining the measurement in spite of a perturbed environment (bubbles or particles in suspension in the liquid).

The external mounting of sensors allows easy installation without pipe drilling nor cutting and flow cut off, easy maintenance (no moving parts), no pressure loss, no risk of leakage and no internal corrosion of sensors (no contact with fluid).

A large LCD graphic screen, a set of pop-up menus and a reduced number of keys make of this device a simple, powerful and friendly tool very appreciated by every person wishing to do a punctual measure of flow.

In addition to the display of flow and totalization, the PORTAFLOW-C™ also offers functions of data logging (stored in a SD memory card), of graphic display of the measured value and of the resultant sound wave, and the storage in memory of 1 to 20 configurations.

Heat quantity measurement function calculates the heat quantity received and sent with liquid (water) in cooling and heating. Two 4-20mA inputs are available for temperature measurements. The consumed heat quantity can be displayed and saved on the SD memory card.

USB port is used to connect a PC. User-friendly PC loader software permits the configuration, the save and the load of all parameters of converter. It permits also the read and save on the PC of datalogger files.

Mainly Specifications

Application	Uniform liquid in which ultrasonic waves can propagateWater, hot-water, distilled water, alcohol, milk, ethanol, etc	SD memory card	It can be saved almost a year date by attached date standards (256MB)
Inner pipe diameter	13mm to φ6000mm (depending on the detector)	Serial communication	Transmission data (data stored in a SD memory card such as instantaneous value, total value, etc) • USB port is used • Transmission distance: 3 m max.
Fluid temperature	-40 to +200°C (depending on the detector)
Flow velocity range	0 to ±32m/s (±0.3m/s min.)	Function	Damping time constant variable within 0 to 100 sec • Instantaneous value display (10 digits) Various flow rate unit settable • Total value display (10 digits) Various flow rate unit settable • Consumed heat quantity computation • Self diagnosis (diagnoses battery voltage drop and received waveform from the sensor) • Flash memory (measurement parameter for pipe, fluid, sensor, etc) • A number of registered sites : 32 • Zero point adjustment (Set zero/Clear available) • Bi-directional flow measurement • Low flow cut (0 to 5m/s)
measurement accuracy	±1.0% of rate(depending on the flow velocity)
Response time	1 sec.
Path	Transit time method (1 Path)
Display	Color graphic LCD with back light
analog output signal	4 to 20mA DC (1 point)
Analog input signal	4 to 20mA DC / 1 to 5V DC (2 points)
Supply voltage	Built-in battery (In the fully charged condition, 12 hours of continuous operation is possible.)
Structure	Waterproof (IP64)
Size	210X120X65mm (without printer)	Option	• With printer : display hard copy, periodic printing and logged data printing • Flow velocity profile (Pulse Doppler method) : displays flow velocity profile of instantaneous value and average value
Weight	Approx. 1kg