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Products // Ultrasonic Open Channel Flowmeter  
AUF790 Series

The AUF790 Series is a fixed mounted, Open Channel ultrasonic flowmeter, with clamp-on transducer used for non-invasive measurement.Our microprocessor based, user friendly, field programmable flow measurement technique allows no interruption of the process flow and has low installation costs.

 4 line LCD display with flowrate, totalizer & Level condition
 V-notch, rectangular with and without end contractions, Cipolletti.
 Parshall, Palmer-Bowlus, Leopold-Lagco, trapezoidal, H. 
 A sampler relay will signal your sampler to collect flow proportion
 High accuracy of +/-0.25% of Full Scale
 Non-contact flow measurement
 Exclusive sensor for open channel flow 
 Response time less than 1 second 


Measuring Principle: Low Level Cutoff:
Ultrasonic Sound 0.000-1.000 Meter
Measuring Range: Dead Band:
Level 0.35 m Max. 
0-3 Meter Bean Angle:
Flow Rate 6 o
0-120000 m3/s Keypad:
Accuracy: 4 Key with tactile action
+/-0.25% of Full Scale Response Time:
Repeatability: Less than 1 second
+/-0.1% of reading Ambient Temperature:
Material: -20~60 oC
Ultrasonic Tube Mounting:
ABS G2" (Standard) / Flange end (Optional)
Sensor Head Max. Cable Length:
Polyurethane (Standard) / ETFE / PTFE 50 m
Housing Power Consumption:
ABS (Remote Version) Less than 3 W
Low copper cast aluminum alloy with Power Supply:
polyurethane (Compact Version) 90-260 VAC, 50/60 Hz (4wires)
Display: 18-36 VDC (4wires)
4 Line LCD with illumination  Data Storage:
Flowrate Operation parameters and totalization 
9 Digits with decimal point date are stored by EEPROM for more
Totalizer than 10 years
9 Digits Output:
Level 4-20 mA
4 Digits Load
Flow Engineer Unit Rohm= (VDC-12) * 50 W
m3, Liter Alarm:
Level High / Low / High-High / Low-Low
Meter / Feet Communication:
Time Unit RS485 (MODBUS)
Second, Hour Dimensions:
Other Compact
Signal condition 130 mm (W) * 230 mm (H) * 180 mm (D)
Formula: Separate
V-notch, Parshall, Palmer-Bowlus 183.5 mm (W) * 218 mm (H) * 125.5 mm (D)
Rectangular, Cipolletti, Leopold-Lagco Weight:
Sensor Frequency: 3.5 kg (Compact), 2.2 kg (Remote)
40 kHz / 1 kHz Enclosure:
Temp Compensation: IP65 (ABS) / IP67 (Aluminum Alloy)
Built-in to compensate over temperature Explosion Proof, Ex d (ia) IIB T4

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