USM Area Velocity Flow Meter

Product catalog summary

General Specifications
The USM Area Velocity Flow Meter operates using ultrasonic velocity measurement and pressure depth measurement. It has a velocity range of 0-10 m/s and a depth range of 0.03m to 10m. The sensor operates effectively within a temperature range of -20°C to 50°C (-4 to 122°F) and offers an accuracy of 0.2% of the measurement range with a resolution of 1 mm. The sensor dimensions are 103mm (L) x 46mm (W) x 25mm (H), and it comes with a standard cable length of 8 m. Sensor fixings include a flat plate for channels or an optional adjustable strap for pipes.

Display and Security
The device features a 3” Graphic LCD with a resolution of 128*64 pixels, displaying white on blue with a backlight. Security is ensured through a user-selectable passcode.

Data Logging and Reporting
It includes a 4 GBytes SD card data logger capable of storing data for over 20 years. The reporting software is Windows-based, allowing for data display, printing of data tables, graphs, and exporting data to Excel.

Outputs
The flow meter provides a 4-20mA analogue output, fully galvanically isolated into 1K, with a bar graph display indicator. Communication is facilitated via RS485 Modbus RTU. It also includes three user-programmable relays (NO/NC) with ratings of 230VAC 5A/30Vdc 6A.

Physical Characteristics
The device dimensions are 130(H) x 160(W) x 60(D) mm, with a weight of 1.0 kg (2.2 lb). It is rated IP 66 / NEMA 4X and approved by ASA+PC, UL 94V-0. The unit is designed for wall mounting.

Power Supply
The flow meter can be powered by an AC supply of 100-240Vac, 5W (5V @ 0.38A) or a DC supply of 9-36Vdc, 6W (5V @ 0.38A).

Electronic Performance
It is equipped with a Texas Instrument MSP430 processor with a 16-Bit Architecture, and it operates within a temperature range of -20°C to 80°C (-4 to +176°F).

Catalog excerpts

USM Area Velocity Flow Meter General Measurement Principle Ultrasonic velocity measurement and pressure depth measurement. Velocity Range Depth Range Operating range Sensor Dimensions Standard Cable Length Sensor Fixings Flat Plate for channels or adjustable strap for pipes (Optional Purchase) 3” Graphic LCD 128*64pixel, White on Blue with Backlight User selectable passcode Data Logger Reporting Software 4 GBytes SD card. > 20 years memory Windows based software to display and print data tables, graphs and export data to Excel. Outputs Analogue 1x4-20mA fully galvanically isolated into 1K. Bar Graph display indicator. Wall mounted Electronic Performance Processor Texas Instrument MSP430, 16-Bit Architecture Temperature Range

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