DIRECT ANSWER
What is the practical starting point?
Non-contact radar sends a signal through free space; guided wave radar directs the signal along a probe. The better choice depends on vessel geometry, dielectric response, interface needs, coating, turbulence and mechanical constraints.
SELECTION FACTORS
Data to confirm before model selection
Use this list to prepare a traceable quotation request.
- 01Choose non-contact radar when avoiding wetted probes is important and the echo path is suitable.
- 02Consider guided wave radar when a defined signal path or interface measurement is needed.
- 03Review probe coating, mechanical load and nozzle suitability for guided wave radar.
- 04Review false echoes, beam path and antenna condition for non-contact radar.
TECHNOLOGY COMPARISON
Compare the decision factors
| Question | Non-contact radar | Guided wave radar |
|---|---|---|
| Contact with medium | No probe in the product | Probe contacts the product |
| Signal path | Free-space beam | Guided along probe |
| Mechanical concern | Antenna and nozzle installation | Probe length, load and coating |
| Typical review focus | Geometry, dielectric response and false echoes | Probe compatibility, buildup and internal obstacles |
FAQ
Questions engineers ask first
Last reviewed:
Which is better for a narrow vessel?
Either can work depending on nozzle, internals and medium. A vessel drawing is required to compare the available signal path.
Can guided wave radar measure an interface?
Some model configurations can, but dielectric conditions and the selected product documentation must be checked.
ENGINEERING SUPPORT
Turn process data into a reviewable instrument request.
Share the medium, operating envelope, installation and required output. We will flag missing information before confirming a model.