The Raphael Non-Contact Laser Velocity Sensor measures flow, typically in gravity-fed systems, for applications in wastewater and stormwater drainage as well as in agricultural supply water and run-off.
Raphael offers an accurate, cyber-secure, and streamlined solution using best-in-breed sensors that is effective both for freshwater and wastewater discharge monitoring applications.
Raphael's Non-Contact Laser Velocity Sensor measures velocity and liquid depth of influent and effluent in real-time using contactless radar and ultrasonic technology in pre-defined pipe sizes, which enables continuous operations and situational awareness. By contrast, substitute solutions in the market typically involve instrumentation relying on acoustics. Compact acoustic sensors are suitable inside the flow for freshwater, but are not a viable solution for wastewater applications.
- Use Real-Time Data to Control Sewer Flows
- Non-Contact Discharge Monitoring
- Robust IP 68 / NEMA 6P for Aggressive Environments
- Sewer Monitoring & Control
- Monitoring of Storm Discharge into the Natural Environment
- Discharge Reuse Cost & Energy Savings
|Method||Non-Contact, Subsurface Laser Doppler Velocity|
|Range||-4.6 m/s to 4.6 m/s (-15 ft/s to 15 ft/s)|
|Accuracy||± 0.5% of reading ± 0.03 m/s (0.1 ft/s)|
|Min. Velocity||0.15 m/s (0.5 ft/s)|
|Max. Distance||3 m (10 ft) from liquid surface to bottom of sensor|
|Direction||Selectable Bidirectional flow measurement.
Requires turbidity > 20 NTU
|Range||0 to 3 m (0 to 10 ft) from measurement point|
|Accuracy at 22°C (72°F)||± 0.006 m (0.02 ft) ≤ 1-ft level change;
± 0.012 m (0.04 ft) ≥ 1-ft level change;
|Temperature Coefficient||± 0.0002 x D (m) per °C
± 0.00011 x D (ft) per °F
(D = Distance from transducer to liquid surface)
|Beam Angle||10° (5° from center line)|
|Ultrasonic Signal||50 KHz|
|Deadband||Zero deadband from bottom of sensor.|
|Size (H x W x D)||38 cm x 26.2 cm x 56.7 cm (15 in. x 10.3 in. x 22.3 in.)|
|Weight||8.7 kg (19.2 lbs)|
|Operating Temperature||-20°C to 60°C (-4°F to 140°F)|
|Flow Accuracy||± 4% of reading under normal conditions|
|Cable Length||32.8 to 75.5-ft Cable
Custom cable lengths also available.