Traditionally, displacers and other mechanical technologies have been used for level, interface and density applications involving short measurement ranges. GWR is now being considered for many of these applications as it offers significant benefits over mechanical technologies.

A displacer is a robust level device that can handle a wide range of pressures and temperatures. As the primary measurement principle is the buoyancy of the displacer in the fluid, fluid density is a key factor in sizing the displacer and determines the stability of the signal, with variations in density affecting accuracy. Build-up on the displacer element also affects accuracy.

GWR, on the other hand, relies on low-energy microwave pulses sent down a probe. When a pulse reaches the surface of the medium, its reflection travels to the transmitter, which uses the time of flight principle to calculate the position of the reflecting surface. As GWR is not density-dependent, changes in the density of the medium or material build-up have practically no effect on accuracy. Unlike mechanical devices, GWR measurements are also unaffected by turbulence or vibration. With no moving parts to stick or wear, maintenance costs are reduced and false readings, which can result in hazardous situations, are avoided.

Dechuang Electrical design and manufacture the DCRD1000C series guided radar level transmitter with accuracy up to 1 millimeters, which can monitor and measure the level of liquid, corrosive liquid and liquid with surface fluctuation, and below is the product features:

1. Adapt the advanced LSI, the radar principle, digital signal processing techniques and the Fast Fourier Transform (FFT) techniques.

2. Apply the continuous dynamic measurement to measure liquid, solid (lump, powder) material level.

3. Long measurement range and high accuracy.

4. Easy installation, maintenance-free.