indication instruments and measurement of microwave levels used in situations where the benefits of other indicators of level of no contact with the product as, for example) ultrasound, are obvious, but can not work due to working conditions, for example, high pressure, low pressure (vacuum), high air temperature or composition. Therefore, Microwaves are often used in chemical processing and storage applications (see fig. 7 and 8).
Figure 7. Example of a level indicator used in a tank.
in Fig. 7, a microwave level gauge is used in a storage tank by condensing high-pressure oil. The instrument is mounted on a still pipe that has a ball valve) so that you can access it without altering the process. Of course, the microwave level indicator of this application meets the requirements of Ex in Fig. 8, the level indicator Microwave is used in a mercaptan storage tank. For security reasons, it adds a level switch pitch, or L1QUIPHANT (in front), as independent alarm high level detection (HLA, High Leve! Alarm).
Figure 8. level meter used in tank mercaptan. in Fig. 9, uses a microwave level gauge for a Cuba of slurry in a seemingly simple application that, in principle) could have been resolved with an ultrasonic level indicator. But conductive foam absorbs all the acoustic energy and instead, reflects the electromagnetic energy.
Figure 9. Using level meter on an open tank of liquid manure.
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