Radar level transmitters and ultrasonic level transmitters are both non-contact level measurement devices that use sound waves to measure the level of a liquid or solid in a tank or vessel. However, they work in different ways and have different advantages and disadvantages.
Radar level transmitter
- Uses electromagnetic waves to measure the level.
- Can measure the level of liquids and solids, even in opaque media.
- Not affected by temperature, density, or viscosity changes.
- Can be used in high-pressure and high-temperature applications.
- More expensive than ultrasonic level transmitters.
- Can be affected by foam, vapors, and dust.
Ultrasonic level transmitter
- Uses sound waves to measure the level.
- Less expensive than radar level transmitters.
- Not affected by foam, vapors, or dust.
- Can be used in applications where radar level transmitters cannot, such as measuring the level of powders or slurries.
- More affected by temperature, density, and viscosity changes.
- Cannot measure the level of liquids in opaque media.
Which one is better?
The best type of level transmitter for a particular application depends on the specific requirements of the application. If the application requires the ability to measure the level of liquids and solids in opaque media, or if the application is in a high-pressure or high-temperature environment, then a radar level transmitter is the better choice. If the application is less demanding and cost is a factor, then an ultrasonic level transmitter may be a better option.
