Level Sensors
Ri-Series Sensors
Part No. RI2-wire radar sensor for level measurements
2-wire level sensors with FMCW radar technology for measurement of critical level applications, with Ex-Certification.
Benefits
- Intelligent 2-wire FMCW radar for direct connection to following systems
- Commissioning with smartphone, tablet or PC via web-based user interface
- Narrow beam angle with only 6 degrees
- LED status indication for installation support and function messages
- ATEX approval for Zone 0/1
Reliable and robust
The Ri-Series 2-wire sensors with FMCW radar technology provide accurate monitoring of liquids in standard and critical measurement applications, ensure absolute operational reliability and minimise costs through very low maintenance and service requirements. Highest reliability for level measurements under the most difficult environmental conditions due to very narrow beam angle and protection class IP68.
Typical Applications
Wastewater
Stormwater overflow tanks and sewer storage spaces, sedimentation tanks, pump stations, screening systems, flow measurements, volume measurements in tanks, container monitoring, irrigation systems
Drinking Water
Tank level measurements, water treatment, seawater desalination plants, level measurements
Flood Protection
Stormwater retention basins, levels with remote data transmission, surface water bodies
Power Generation
Cooling water circuits, hydropower plants
Industry
Containers and basins of any kind
Benefits FMCW Radar Technology
- No influence by temperature fluctuations, wind, pressure or superimposed gases
- For applications with foam surface or vortex formation
- Continuous surface detection
Unique and secure web-based user interface via Bluetooth
With a web-based user interface, the Ri sensor offers a simple and convenient way to change parameters, display echo curves and change the Bluetooth range. This web app is accessible via any browser on any operating system (Windows, Android or iOS). Compared to a conventional app, no software and associated updates need to be installed.
Link to the user-interface: https://www.nivus.de/ri-app/
DTM via HART
A HART device DTM (Device Type Manager) is also available for the sensors, with which parameterisation is possible via the manufacturer-independent PACTware adjustment software.
PC Software via HART
Manual false echo blanking can be carried out via PC software if required. In addition, all important parameters for measurement range adjustment can be optimised and documented.
LED Indicator
During installation, the LEDs show at which mounting position the sensor gets the best signal. This allows for a comfortable and easy installation of the sensor. In measurement mode, the LEDs also show whether the measurement is working properly.
Mounting is easy via the 1" BSP/NPT thread on the back. The sensors are also optionally available with a 1" front thread made of PVDF.
| Common | |
|---|---|
| Measurement principle | FMCW |
| Measurement range | 75 mm up to 8 m or up to 20 m |
| Measurement frequency | V-Band (63 GHz) |
| Beam angle | 6° |
| Power supply | 12 - 28 V DC |
| Power consumption | 3.8-22 mA, resolution 1μA, Max Start-up Current: 20 mA |
| Startup time | Cold boot = 10 seconds Warm boot = 5 seconds |
| Housing Material | Valox |
| Process connection | Rear 1-inch BSP / NPT Optional: Front 1.5-inch BSP / NPT |
| Protection | IP68 / NEMA 6P |
| Ex-Approval | Zones 0, 1, 2: Ex II 1G Exia IIC T4 Ga, Tamb.= -40°C to +80°C. Zones 20, 21, 22 : Ex II 1D Exia IIIC T100°C Da, Tamb.= -40°C to +80°C. |
| Cable lengths | Standard: 5 m, 10 m, 20 m, 30 m, 50 m or 100 m (16.4 ft, 32.8 ft, 65.5 ft, 98.4 ft, 164 ft or 328 ft) |
| Outputs | 4-20 mA, HART with DTM |
| Communication | Encrypted Bluetooth with mobile interface, Wireless Range 4 - 40 m (13.1 ft - 31.2 ft / User Configurable ) |
| Display | Quad-color lights with tilt sensor |
| Weight | 1,5 kg |
| Resolution | 1 mm |
| Accuracy | 2 mm |
Specifications subject to change.
Brochure Ri-Sensors
Accurate and reliable level measurement with radar technology
