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.

AUF761 Series

Datasheet

The AUF761 Series is a fixed-mounted transit-time ultrasonic flowmeter designed for accurate, non-invasive measurement of clean, homogeneous liquids. Factory-mounted transducers enable flow lab calibration, reducing bias errors often found in clamp-on transducer setups. It is widely used in process control and production measurement. The meter features a two-line LCD display for flowrate and totalizer data, and it can store values for up to 10 years. It supports pipe sizes from DN20 to DN1000 mm and provides high accuracy of ±1% of reading. Key capabilities include bidirectional measurement, various output options (4-20 mA, pulse, RS485), self-calibration, and real-time measurement calibration. The sensor is durable and can withstand temperatures up to 200°C for short periods.

Technical Specifications

Measuring Principle	Transit time difference
Pipe Size	DN20-DN1000 mm
Flow Velocity	0.3 ~ +/-12 m/s
Resolution	0.001 m/s
Accuracy	+/-1% of reading+/-0.2% of reading
Repeatability	+/-0.2% of reading
Response Time	Less than 1 second
Process Temperature	-40~70 °C -40~160 °C
Max. Pressure	100 kgf/cm2
Process Connection	Thread (DN20-DN40) Flange (DN20-DN1000)
Flange Type	JIS 10K / JIS 20K / JIS 40K ANSI 150# / ANSI 300# / ANSI 600# DIN PN10 / PN16 / PN25 / PN40
Body Material	S.S. 304 / S.S. 316
Housing Material	Aluminum Alloy
Ambient Temperature	-20~50 °C
Protection Class	IP67
Explosion Proof	Ex d IIC T4 IR Remote Control: Intrinsically Safe, Ex ib IIC T6
Keypad	4 Internal Keys / IR Remote Control
Display	2 Lines LCD with illumination Flowrate: 7 Digit with decimal point Totalizer: 8 Digit, Forward, Reverse & Net values. Engineering Unit: m3, L, USgal, USbbl, ft3 Time Unit: sec, min, hour, day Other: Velocity, Date, Time, Signal condition
Installation	Compact or Remote
Max. Cable Length	100 m
Power Consumption	Less than 2W
Power Supply	90-260 VAC 50/60 Hz and 24 +/-10% VDC
Data Storage	Operation parameters and totalizer figures are stored by EEPROM for more than 10 years
Current Output	4-20 mA
Load	Max. 800 Ω
Pulse Output	1 unit / pulse (Passive)
Rating	12-24 VDC, 100 mA Max.
Communication	RS485 (MODBUS)
Cable Entry	1/2" NPT (Female) (Standrad) M20 * 1.5 (Option)