High-frequency radar level gauge selection instructions

Application of radar level gauge 1. It can measure liquid and solid media such as: crude oil, slurry, raw coal, pulverized coal, volatile liquid, etc.; 2. It can be measured in vacuum; 3. Power supply and output signal pass through a two-core wire Cable (loop circuit), using 4...20mA output or digital signal output; 4. Non-contact measurement is easy to install, using extremely stable materials, firm and durable, and reliable resolution up to 1mm; 5. Free from noise, steam, dust , vacuum and other working conditions; 6. Not subject to changes in medium density and temperature, the process pressure can reach 40bar, and the medium temperature can reach 300 °C; 7. There are various installation methods to choose from: top installation, side installation, bypass pipe Installation and still-pipe installation; 8. There are various ways to debug: debugging by programming module (equivalent to an analysis and processing instrument), SOFT software debugging, HART handheld programmer debugging, debugging is convenient and fast. High-frequency radar level gauge selection instructions 1. Measurable medium When measuring medium flow rate, instrument range and caliber, when measuring general media, the full-scale flow rate of the radar level gauge can be selected within the range of the measured medium flow rate of 0.5-12m/s , the range is wider. The specification (diameter) of the selected instrument is not necessarily the same as that of the process pipeline. It should be determined according to whether the measurement flow range is within the range of the flow rate, that is, when the flow rate of the pipeline is too low to meet the requirements of the flow meter or the measurement accuracy cannot be guaranteed at this flow rate, It is necessary to reduce the diameter of the instrument to increase the flow rate in the pipe and obtain satisfactory measurement results. The measurement method is a radar level gauge based on the principle of time domain reflection (TDR). Part of the pulse of the radar level gauge is reflected to form an echo and return along the same path. However, considering the influence of corrosion and adhesion, the end of the measurement range. The value should be at least 100mm from the base of the antenna. For overfill protection, a safety distance of the radar level gauge can be defined and attached to the blind zone. The minimum measurement range depends on the antenna. Depending on the concentration, the foam can both absorb and reflect microwaves, but measurements can be made under certain conditions. Back to the pulse launcher.

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