Regarding the issue of the flow meter being installed in reverse
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Do the experts here know whether the dial of various flow meters will still move if they are installed in the wrong direction?
It depends on the principle of the flow meter
Can’t a Pitot tube be installed in reverse, right? Can’t the electromagnet be installed in reverse, right? Can’t the vortex street be installed in reverse, right? The nozzle can’t be installed in reverse, right? Can’t a positive-displacement type be installed in reverse, right? It seems that most of them cannot be used in reverse; please correct me if I’m wrong. After thinking it over, I came up with the idea that ultrasound can be used for two-way measurement
What was said upstairs is correct; indeed, in most cases the text doesn’t appear when it’s installed backwards. Ultrasound might work in such situations
It depends on the working principle of the flow meter; however, the vast majority of flow meters cannot be installed in reverse. In some cases, installing them in reverse results in negative values, such as in water meters where an impeller drives gears to rotate, and in rotary vane flow meters.
It cannot be installed in reverse, as the setting of your flow meter’s range is directional. Some characters might disappear, but what meaning do those missing characters have? The electromagnetic device may emit signals; the specific type of signal depends on the original settings in the table. Velocity-type flowmeters may show inaccurate readings, as may vortex flowmeters; volume-type flowmeters generally do not show inaccurate readings, as they may not be able to rotate. Orifice plates generally have a signal output, and so do ultrasonic devices. But the character was misspelled; what meaning does this character have?
This post was last edited by dagou007 on 2015-6-15 13:28. Among waist-wheel watches, diaphragm watches, turbine watches, and ultrasonic watches, which of those use gas as the medium and can show incorrect time when installed in the reverse direction?