VEGAPULS C 23 Radar Level Transmitter Overview
VEGAPULS C 23 is a radar level transmitter for continuous level measurement, suitable for non-contact measurement of liquids and some solid materials. It is based on the 80 GHz frequency modulated continuous wave (FMCW) principle, featuring a small beam angle and strong anti-interference capability.
This article summarizes the download entry for the Chinese manual of this instrument and outlines the key points for installation, commissioning, and maintenance, facilitating quick reference for engineering technicians and procurement.

Working Principle and Technical Features
Measurement Principle
The instrument emits a high-frequency radar signal, which is reflected by the material surface and then received. By calculating the frequency difference between the transmitted and received signals, the distance to the material surface is obtained, and then the level is converted based on the tank height.
Core Advantages
- Non-contact measurement: No direct contact with the medium, reducing corrosion and wear.
- Small beam angle: Suitable for narrow tanks or working conditions with agitation and obstacles.
- High precision: Meets the measurement requirements of most process storage tanks and metering scenarios.
- Easy commissioning: Supports parameter setting via Bluetooth or remote methods.
Main Technical Parameters
The table below lists typical parameters of the VEGAPULS C 23; the actual values are subject to the accompanying manual and nameplate.
| Item | Typical Parameter |
|---|---|
| Measurement principle | 80 GHz FMCW radar |
| Measuring range | Max. 15 m (depending on working conditions) |
| Measurement accuracy | Within ±2 mm |
| Process connection | Thread / flange (depending on model) |
| Process temperature | -40 … +80 ℃ |
| Process pressure | -1 … +3 bar |
| Output signal | 4 … 20 mA / HART, etc. |
| Protection rating | IP66 / IP67 |
Installation Key Points
Selection of Installation Position
- Avoid the inlet, agitator, and tank wall as much as possible to reduce false echoes.
- Ensure the antenna axis is perpendicular to the material surface.
- Reserve sufficient dead zone to prevent the highest level from entering the dead zone.
Installation Steps
- Confirm that the process connection specifications and seals are intact.
- Screw in or flange-mount the instrument to the installation interface and tighten appropriately.
- Check the electrical wiring and connect the power and signal lines according to the manual.
- After power-on, observe whether the indicator lights and output signal are normal.
Commissioning and Maintenance
Commissioning Steps
- Enter parameters such as tank height, medium, and output range.
- Perform false echo suppression and record the interference echo curve.
- Verify the output current corresponding to empty tank and full tank.
- Save the parameters and record the commissioning data.
Daily Maintenance
- Regularly check whether the antenna surface has scaling, crystallization, or material buildup.
- Avoid scratching the antenna during cleaning; use a soft cloth and suitable cleaning agent.
- When measurement fluctuations occur, first check power supply, grounding, and interference sources.
Manual Download and Selection Recommendations
Click the PDF icon at the top of the page to obtain the VEGAPULS C 23 Chinese Manual, which includes complete wiring diagrams, parameter tables, and fault code descriptions.
When selecting a model, it is recommended to confirm the medium characteristics, process temperature and pressure, measuring range, and output method, and verify the model code with the supplier to ensure compatibility with on-site working conditions.