VEGA VEGAPULS C21 Compact Radar Level Sensor
Overview
The VEGA VEGAPULS C21 is a compact, wired radar sensor for continuous non-contact level measurement, purpose-built for water treatment, pumping stations, and open-channel flow monitoring. Its compact plastic housing and 80 GHz radar technology combine maintenance-free operation with the precision required for demanding water and wastewater applications.
Working closely with plant engineers in the region, Seven Star LLC proudly supplies the VEGA VEGAPULS C21 to water utilities and municipal facilities across the Sultanate of Oman and the wider GCC, backed by genuine factory calibration, full documentation, and local technical support.
Measurement Principle
The VEGA VEGAPULS C21 operates on the pulse radar time-of-flight principle at 80 GHz. A microwave signal is emitted toward the liquid or bulk solid surface, reflects, and returns to the sensor; the elapsed transit time is measured and converted into an accurate level reading, entirely independent of contact with the measured medium.
Because the sensor is non-contact and maintenance-free, it delivers reliable readings in open channels, wet wells, and rain overflow basins where fouling, turbulence, and debris commonly disrupt other measurement technologies. Its 8 degree beam angle provides good signal focusing for a compact sensor, and the design supports both liquid level and small bulk solids applications.
Engineering Design of the VEGA VEGAPULS C21
The sensor measures ranges up to 15 m with an accuracy of ±2 mm, in a compact plastic housing rated IP66/IP67 with a PVDF process fitting available in G1-1/2, 1-1/2 NPT, or R1-1/2 threads. It is rated for process temperatures from –40°C to +80°C, making it well suited to outdoor water and wastewater installations.
Communication is available via 4–20 mA, HART, SDI-12, or Modbus, with Bluetooth built in as standard for wireless configuration and diagnostics from up to 25 m away using a smartphone or tablet, eliminating the need to open the housing for routine adjustment.
Key Features
The VEGA VEGAPULS C21 is engineered for reliable, low-maintenance level measurement, and the VEGA VEGAPULS C21 is a proven solution across water and wastewater infrastructure throughout the region:
- Delivers measurement accuracy of ±2 mm across measuring ranges up to 15 m.
- Uses 80 GHz radar with an 8 degree beam angle in a compact sensor package.
- Includes standard Bluetooth connectivity for wireless setup and diagnostics up to 25 m away.
- Supports 4–20 mA, HART, SDI-12, or Modbus output for flexible system integration.
- Handles process temperatures from –40°C to +80°C for outdoor and exposed installations.
- Achieves IP66/IP67 protection in a robust, compact plastic housing.
- Suits both liquid level measurement and small bulk solids silo applications.
- Is maintenance-free thanks to its fully non-contact measuring principle.
Industrial Applications
The VEGA VEGAPULS C21 is specified for water treatment plants, pumping stations, rain overflow basins, open-channel flow measurement, and small bulk solids silos or containers. Its compact size and Bluetooth configuration make it especially practical for municipal utilities managing large numbers of monitoring points across a network.
With fast quotation turnaround and technical support, Seven Star LLC distributes the VEGAPULS C21 to water and wastewater utilities throughout Oman and the GCC, including projects in the Sohar and Salalah economic zones, municipal pumping stations, and desalination plants, supported by regional stock availability and factory-trained technical staff.
Technical Specifications
Key technical parameters for the VEGA VEGAPULS C21 are summarized below.
| Parameter | Specification |
|---|---|
| Model | VEGA VEGAPULS C21 |
| Measuring Principle | Non-contact radar (80 GHz) |
| Measuring Range | Up to 15 m |
| Accuracy | ±2 mm |
| Beam Angle | 8° |
| Process Temperature | –40°C to +80°C |
| Process Fitting | PVDF, G1-1/2, 1-1/2 NPT, R1-1/2 |
| Communication | 4–20 mA, HART, SDI-12, Modbus, Bluetooth |
Why Choose Seven Star LLC for VEGA Compact Radar Level Sensors
A water utility deploying VEGAPULS C21 sensors across dozens of pumping stations and monitoring points benefits most when procurement, Bluetooth commissioning, and spare-sensor planning are coordinated together rather than handled one point at a time. Seven Star LLC supports municipal and wastewater utilities across Oman and the GCC with batch ordering and consistent configuration guidance for VEGAPULS C21 deployments, drawing on our authorized VEGA partnership in the region. We also help utility teams in Muscat, Sohar, and Salalah plan remote Bluetooth-based setup and diagnostics for open-channel and wet-well installations that are difficult or unsafe to access physically, keeping large monitoring networks maintainable without repeated site visits. We also help utilities plan process fitting selection (PVDF, NPT, or metric thread) consistently across a network so replacement sensors remain interchangeable between sites during future maintenance cycles, and we keep common C21 variants in regional stock to minimize downtime when a single monitoring point needs urgent replacement, and our technical team is available to advise on SDI-12 versus Modbus integration choices depending on the SCADA platform already deployed already in use across your network and facility.
Request a Quote for VEGA VEGAPULS C21 Compact Radar Level Sensor
For water and wastewater monitoring points standardizing on the VEGA VEGAPULS C21, Seven Star LLC is ready to support your project with a formal RFQ, technical datasheet, and delivery timeline. Regional warehouse stock and factory-trained instrumentation engineers mean faster lead times and reliable after-sales support across Oman and the GCC. With regional stock and engineering support in Muscat, contact our instrumentation division today to configure the right VEGAPULS C21 variant for your application, complete with genuine calibration certificates and full documentation.
Related Products
- Instruction ManualVEGA VEGAPULS C21 Compact Radar Level Sensor Manual Download
VEGA (VEGA Grieshaber KG) is a global German manufacturer of level, point level and pressure measurement sensors and transmitters for process automation. Its product range includes advanced radar and guided-wave radar level transmitters, hydrostatic and capacitive level devices, pressure transmitters and instrumentation software for integration into process control systems. VEGA solutions serve demanding sectors such as oil & gas, petrochemical, power generation, water & wastewater, mining, food & pharmaceutical industries and heavy manufacturing. Engineered for high reliability, extreme environmental tolerance and precise measurement performance, VEGA instruments provide continuous and accurate data for control, safety and optimization of industrial processes worldwide.
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