AUF790 Series
The AUF790 Series is a fixed-mounted, open channel ultrasonic flowmeter, with a 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.
Features
- 4-line LCD display with flowrate, totalizer & Level condition
- V-notch, rectangular with and without end contractions, Cipolletti weir
- Parshall, Palmer-Bowlus, Leopold-Lagco, trapezoidal, H-shaped flames
- 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
Specification
| 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/hr, m3/s, L/s, gal/min, gal/hr |
| Level Unit | : | Meter / Feet |
| Time Unit | : | Second, Hour |
| Other | : | Signal condition |
| Formula | : | V-notch, Parshall, Palmer-Bowlus |
| : | Rectangular, Cipolletti, Leopold-Lagco | |
| Sensor Frequency | : | 80 kHz |
| Temp Compensation | : | Built-in to compensate over temperature |
| range |
| 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 (Option) |
| 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) |
| Protection Class | : | IP65 (ABS) / IP67 (Aluminum Alloy) |
| : | Explosion Proof, Ex d (ia) IIB T4 |
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