Magnetrol's Enhanced Eclipse Model 705 liquid level transmitter is now available with a coaxial GWR (guided wave radar) probe suitable for measuring liquids of up to 1500 cP viscosity. This enlarged coaxial probe with a 45 mm inner diameter offers the same measurement efficiency as the traditional 22 mm diameter standard coaxial probe. The larger diameter makes bridging between the inner and outer rod virtually impossible. This 'special' version is beneficial for applications with extreme build-up. As with any GWR probe, changing specific gravity and shifting dielectric constant have no effect on its performance.
Coaxial GWR probes in general are not ideal for use on liquids with high viscosity and less efficient probes such as double or single rod probes are often used in such applications. These rod probes are less sensitive and have a higher likelihood of deviant measurements of liquids with lower dielectrics. Especially with single rod probes the location of installation is important for obtaining a good measurement.
This enlarged probe is available in various models and can be used for overall level or interface level measurement. Model offerings include temperatures and pressures up to +430°C and 430 bar respectively. The high measurement efficiency enables this probe to measure liquids with dielectrics as low as 1,4. Like the standard model, it is available in 316/316L (1.4401/1.4404), Hastelloy C (2.4819) and Monel (2.4360). All Eclipse 705 GWR probes are overfill safe. This construction allows accurate measurement up to the process connection, which mechanically prevents signal loss in the critical zone.
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