Product Introduction
The VEGA VEGAPULS C 21 is a compact radar level sensor for continuous, non-contact measurement of liquids and bulk solids. Its 80 GHz technology supports reliable level monitoring in water treatment facilities, pumping stations, open channels, and small bulk-solids storage systems. The fixed cable outlet and high ingress protection make it suitable for outdoor installations and wet environments.
Key Features
- 80 GHz radar technology for non-contact continuous level measurement.
- Measuring range up to 20 m with accuracy of ±2 mm.
- IP66/IP68 protection, Type 6P for demanding installation environments.
- Multiple output options: 4–20 mA/HART, Modbus, or SDI-12, depending on version.
- PVDF wetted material for compatible applications.
- Bluetooth adjustment with a compatible smartphone, tablet, or PC.
- Optional explosion-protection approvals for suitable configurations.
Applications
- Water and wastewater treatment plants
- Pumping stations and sump level monitoring
- Stormwater overflow basins
- Open-channel flow measurement
- Water-level monitoring in receiving watercourses
- Small bulk-solids silos and open containers
- Seawater intake and other water-management systems
Technical Highlights and Selection Considerations
The VEGAPULS C 21 supports process temperatures from -40 to +80 °C and process pressures from -1 to +3 bar. It has an 8° beam angle and uses an integrated antenna system with PVDF encapsulation.
When selecting a model, confirm the measuring range, installation height, medium, cable requirements, required output signal, and any necessary approvals. For open-channel flow measurement, verify compatibility with the selected flume or weir and the associated level-to-flow calculation requirements.
Frequently Asked Questions
1. What is the VEGA VEGAPULS C 21 used for?
It is used for continuous, non-contact level measurement of liquids and bulk solids, particularly in water management and standard industrial applications.
2. What is its maximum measuring range?
The maximum measuring range is 20 m, with a published accuracy of ±2 mm.
3. Is the VEGAPULS C 21 suitable for outdoor installation?
Yes. Its IP66/IP68 protection and Type 6P enclosure rating make it suitable for many outdoor and wet-environment installations. Confirm the specific installation conditions before ordering.
4. Which output signals are available?
Available options include 4–20 mA/HART, Modbus, and SDI-12. The required output should be specified when selecting the sensor.
5. Can it be used for open-channel flow measurement?
Yes. It can measure the level in open channels. Calculating flow typically also requires a suitable flume or weir and the corresponding level-flow relationship.
6. Can the VEGAPULS C 21 be used in hazardous areas?
Certain configurations have explosion-protection approvals. Verify the required certification and the exact model before use in a hazardous area.
