For liquefied gas cylinders, external ultrasonic level gauges are the preferred choice

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This post was last edited by wotey on 2011-12-25 at 11:39. External-mounted ultrasonic level gauge I. Product overview The WO-2000 intelligent external-mounted ultrasonic level gauge installs its ultrasonic probe directly below the outer wall (bottom) of the container being measured; no drilling is required, making it easy to install and not affecting ongoing production. It enables accurate measurement of various toxic substances and pure liquids inside high-temperature, high-pressure, sealed containers. The instrument features an explosion-proof design to meet explosion prevention requirements. http://imgeditor.hbzhan.com/MTEditor/20111216/634596342959436250.jpg II. Features of the instrument http://imgeditor.hbzhan.com/MTEditor/20111216/634596343090842500.jpg (1) The probe is external, so there is no need to make holes in the container being measured; this enables true non-contact measurement. It is suitable for accurately measuring the level of toxic, volatile, flammable, explosive, or highly corrosive liquid substances in various sealed containers. 　(2) The instrument has no mechanical moving parts, resulting in a long service life. No corrosion, no pollution, and large usable area. 　(3) The instrument is equipped with an internal ASIC (an integrated circuit dedicated to intelligent ultrasonic functions), which enables it to have a compact size and provide stable and reliable measurement results. It is suitable for various liquids and containers to be measured, is easy to install on-site, and does not require complex on-site calibration. 　(4) The instrument features various calibration functions such as automatic temperature correction and automatic fixed-distance calibration, ensuring more accurate and reliable measurement results. 　(5) The instrument has comprehensive functions, featuring RS-485 and 4-20mA interfaces. III. Main Performance Parameters
Range: 3m, 5m, 10m, 20m, 30m
Measurement error: 1‰ (precision may be affected by overly thick tank walls or unstable pressure and temperature)
Display resolution: 1mm
Migration amount: ±10 m
Current output: 4–20mA, maximum load 750Ω
Communication: RS-485
Power supply: DC 24V±15%, 10W
Humidity: 15%RH–100%RH
Enclosure protection rating: IP65
Explosion protection rating: ExdIICT6
Material: Cast aluminum
Display: Wide-temperature LCD display with 6-digit digits
Operating temperature for ultrasonic probe: -50–+220°C

IV. Installation Diagram: http://imgeditor.hbzhan.com/MTEditor/20111216/634596342739280000.jpg

V. Some Liquids to Be Measured
Liquefied gas, chloroform, tetrachloroethylene, water, sulfuric acid, propylene phenol water, perfluoropropylene, methyl tert-butyl ether, unsymmetrical dimethylhydrazine, nitrogen, **ammonia, butadiene, vinyl chloride, light hydrocarbons, pheromones, anhydrous hydrogen fluoride, toluene, hydrogen sulfide, gasoline C3, tetrafluoroethane, toluene, tetrafluoroethylene, ethylene oxide, propylene, trifluoroethylene, ethanol, Freon, ether, diesel, ethylene, milk, liquid ammonia, kerosene, nitric acid, methanol, hydrochloric acid, ammonium chloride, liquid chlorine