Ultrasonic Flowmeter

Submit a Quote Request with Ease

Add your desired products to the cart and submit your list for a quote—quick, easy, and without obligation. If you have any questions, please email us.

Inquiries and Support

Should you have any inquiries regarding our products or their applications, please feel free to contact us by phone. We are here to assist you.

AUF790 Series

Datasheet

The AUF790 Series is a fixed-mounted, open-channel ultrasonic flowmeter with clamp-on transducers, providing non-invasive flow measurement. Utilizing a microprocessor-based, user-friendly, field-programmable flow measurement technique, it ensures no disruption to the process flow and offers low installation costs. The meter features a four-line LCD display showing flow rate, totalizer, and level conditions. It supports various channel types, including V-notch, rectangular (with and without end contractions), Cipolletti, Parshall, Palmer-Bowlus, Leopold-Lagco, and trapezoidal. The meter also includes a sampler relay that signals your sampler to collect flow proportion. It offers high accuracy of ±0.25% of full scale, non-contact flow measurement, and an exclusive sensor for open channel flow. The response time is less than 1 second.

Technical Specifications

Measuring Principle	Ultrasonic Sound
Measuring Range	Level: 0-3 Meter Flow Rate: 0-99999.999 m3/s
Accuracy	+/-0.25% of Full Scale
Repeatability	+/-0.1% of reading
Material	Ultrasonic Tube: ABS Sensor Head: Polyurethane (Standard) / ETFE / PTFE Housing: ABS (Remote Version), Low copper cast aluminum alloy with polyurethane (Compact Version)
Display	4 Line LCD with illumination Flowrate: 8 Digits with decimal point Totalizer: 9 Digits Level: 4 Digits Flow Engineering Unit: m3, Liter Level: Meter / Feet Time Unit: Second, Hour Other: Signal condition
Formula	V-notch, Parshall, Palmer-Bowlus Rectangular, Cipolletti, Leopold-Lagco
Sensor Frequency	80 kHz
Low Level Cutoff	0.000-1.000 Meter
Dead Band	0.35 m Max.
Beam Angle	6°
Keypad	4 Key with tactile action
Response Time	Less than 1 second
Ambient Temperature	-20~60 °C
Mounting	G2" (Standard) / Flange end (Optional)
Max. Cable Length	50 m
Power Consumption	Less than 3 W
Power Supply	90-260 VAC, 50/60 Hz (4-Wire) 18-36 VDC (4-Wire)
Data Storage	Operation parameters and totalization date are stored by EEPROM for more than 10 years
Output	4-20 mA Load: Rohm= (VDC-12) * 50 Ω
Alarm	High / Low / High-High / Low-Low
Communication	RS485 (MODBUS)
Dimensions	Compact: 130 mm (W) * 230 mm (H) * 180 mm (D) Remote: 183.5 mm (W) * 218 mm (H) * 125.5 mm (D)
Weight	3.5 kg (Compact), 2.2 kg (Remote)
Enclosure	IP65 (ABS) / IP67 (Aluminum Alloy) Explosion Proof, Ex d (ia) IIB T4