Lessons Learned About Meters

How to Select a Flow Meter A flow meter is an instrument that is used to measure the flow rate of liquids or gases. One should take into consideration the familiarity of the working personnel with the device and their experience with calibration when buying a flow meter. The maintenance factors such as availability of spare parts and the probability of failure are some factors one should put into consideration. One should also take into consideration the cost of installation of the flow meter. A device because it is less expensive one should not buy since this can be the most costly installations. One can consult an installation engineer when buying the flow meters just in case there are any flow measurement challenges. The best flow meters basics of selecting are evaluating the nature of the process fluid and the fluid and flow characteristics. Also, one should consider the piping and the area the flow meter is to be located. The fluid characteristics to be considered are the pressure, temperature, viscosity, density and many others. These properties should have an indication of how they should interact for the flow meter to operate properly. A detailed composition of the fluid should also be there. This is to say that one should indicate whether the fluid has solids and whether they are soft or abrasive or whether they have big or small particles. So that one can select the best meter they should know the required meter range and this is done by identifying the minimum and maximum flows that will have to be measured. Unless one knows the measurement accuracy, the flow meter’s performance may not be accepted over its full range. One should choose the ones without moving parts over the ones with them when they are purchasing flow meter. Since the moving parts are prone to wear and tear, usually the flow meters with moving parts are a cause of problems and failure. Clearance spaces for the moving parts that sometimes cause slippage into the flow being measured they also require. There are different types of flow meters which include; rotameters, piston flow meters, paddlewheel, turbine flow meters, ultrasonic flow meters and magnetic flow meters. For in-line or insertion types the magnetic flow meters are available. They are ideal for any waste liquids that are conductive. Usually integral the displays are and an analog output can be used or remote monitoring. For dirty water or waste water the ultrasonic flow meters are also used. The frequency shift of an ultrasonic signal when it is reflected by discontinuities in the liquid flow is the principle of operation that is employed. The rotameter on the other hand is the most used for liquids and gases.Lessons Learned About Meters

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