Determine the total accumulated quantity of substance transferred from these paddle wheel impeller and magnetic pickup sensor based flow metering instrumentation which measure the motion of a substance.
Related Technical Terms
A totalizer is a measurement feature included with some types of meters which stores or maintains a record of the accumulated quantity of some substance over time.
Totalizers can be reset to start at a particular point in time or after a certain amount has been completed. For example a totalizer can be used to determine the total quantity accumulated, which can then be used to calculate the cost of oil that has been delivered along a pipeline, or ensure the correct percentage of dose is added to a food mixing process.
A paddle wheel or pelton wheel device consists of a wheel with profiled blades which are driven around an axis perpendicular to the direction of flow.
A fixed pickup sensor counts each time a blade containing a magnet passes which when combined with a time measurement, the rotational speed of the blades can be calculated. The frequency output can then be converted to a any output signal or display reading for monitoring or controlling the speed of a substance passing the paddlewheel sensor.
A flow meter is category of device that is assigned to any instrument which can measure either directly or indirectly the quantity of a substance passing through a specific location.
A flow meter will typically measure the speed of flow as the primary reading, and some depending on the technology may include additional secondary readings to compensate for variations in flow due to pressure, temperature, density and viscosity changes. Some flowmeters include additional instrumentation to manipulate the flow reading to provide other functions such as the total quantity indication, or alarms each time a batch has been completed.