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SONDAR SF-500S Ultrasonic Open Channel Flow Meter
Non-contact ultrasonic flow meter for open channels, weirs and flumes: 0 to 200,000 m³/h, accuracy 0.2% F.S., built-in weir and flume formulas. Two 4 to 20 mA outputs, 3 relays, RS-232, RS-485, Modbus, data logging and USB. Controller IP65, sensor 0.3 to 4 m IP68. CE, FCC, UL, KC.
Certified equipment
ATEX / IECEx documentation supplied where stated
Worldwide delivery
Incoterms agreed in each quotation
Quotation first
Price, lead time and certificates in every offer
The SONDAR SF-500S measures the flow in open channels by measuring the water level above a weir or in a flume with a non-contact ultrasonic sensor, and converting it with the built-in weir and flume formulas. It is designed for wastewater and effluent discharge points, treatment plant inlets and outlets, and irrigation or drainage channels.
The controller logs data for up to 672 days, supports firmware upgrade and data download by USB, and offers a self-check guide with QR code.
Technical data
| Model | SF-500S, sensor LXD-04P |
| Measuring method | Non-contact ultrasonic |
| Flow range | 0 to 200,000 m³/h |
| Accuracy | 0.2% of full scale |
| Resolution | 1 mm |
| Storage | Up to 672 days at 1 h interval |
| Display | Illuminated graphic LCD, 6 keys |
| Outputs | Two 4 to 20 mA (max 750 Ω), 3 relays, RS-232, RS-485, Modbus |
| Controller | Polycarbonate, IP65, -20 to 60 °C, about 2.0 kg |
| Power | AC 100 to 230 V 50/60 Hz or 9 to 30 V DC, max 8 W |
| Sensor range | 0.3 to 4 m (dead range 0.3 m) |
| Sensor frequency / beam | 44 kHz, 8° |
| Sensor connection | 1" PF |
| Sensor | PVDF, IP68, about 1.0 kg, built-in temperature sensor, condensation prevention |
| Certification | CE, FCC, UL, KC |
Documents
Manufacturer catalogue attached below. Certification: CE, FCC, UL, KC. Not certified for hazardous areas (no ATEX or IECEx certificate). Made in South Korea by SONDAR.
SONDAR-SF-500S
Data sheet
- Hazardous area
- Not certified
- Accuracy
- 0.2% F.S.
- Output
- 2 x 4 to 20 mA, relays, RS-232, RS-485, Modbus
- Certification
- CE, FCC, UL, KC
- Country of origin
- South Korea
- Technology
- Ultrasonic
- Application
- Open channel flow
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Non-contact ultrasonic flow meter for open channels, weirs and flumes: 0 to 200,000 m³/h, accuracy 0.2% F.S., built-in weir and flume formulas. Two 4 to 20 mA outputs, 3 relays, RS-232, RS-485, Modbus, data logging and USB. Controller IP65, sensor 0.3 to 4 m IP68. CE, FCC, UL, KC.