Significance of Flow Meters in Process Measurement and Management

Charlie Brown By Charlie Brown, 14th Jun 2017 | Follow this author | RSS Feed | Short URL http://nut.bz/16ayt591/
Posted in Wikinut>Business>IT & Ecommerce

Flow meters refer to the instruments that are used for measuring mass and volumetric flow rates of gases or liquids. During the process of picking flow meters, it is important to consider factors such as how familiar the team is with the instruments, their level of experience n regards to maintenance, availability and spare parts.

Significance of Flow Meters in Process Measurement and Management

Flow meters refer to the instruments that are used for measuring mass and volumetric flow rates of gases or liquids. During the process of picking flow meters, it is important to consider factors such as how familiar the team is with the instruments, their level of experience n regards to maintenance, availability and spare parts.

The costs that are associated with installation should be calculated after highlighting these aspects. A common mistake that is made when dealing with flow measurement is placing emphasis on the affordability of a device rather than choosing a sensor that can function properly. Focusing on making an affordable purchase instead of performance can end up costing much more in the long run.

Flow Measurement

The selection of flow meters is based on understanding what a particular application requires. It is crucial to invest as much time as possible in carrying out a thorough assessment of process fluids, their properties and general installation.

Choosing Flow Meters

A key step towards choosing flow meters is determining whether information pertaining to flow rate should be in its entirety or continuous as well as whether the information needs to be remotely or locally based. Answering these types of questions paves the way for evaluating the nature and flow of process fluids and pipes that can accommodate the meter.

Characteristics of Fluid and Flow

The process fluid and its characteristics such as temperature, pressure, density and viscosity are listed along with a clear indication of the interaction and variation of properties. Safety information should also be provided with detailed information regarding the composition of the fluid.

Ranges of Pressure and Temperature

The expected maximum and minimum pressure and temperature values need to be provided along with the usual operating values when choosing a flow meter. This covers aspects such as the ability to reverse flow, filling the pipe, slug flow, aeration and the occurrence of sudden changes in temperature. Other facts that include the need for special precautions during maintenance should also be given.

Pipes and Areas of Installation

Consider the piping and location of flow meters. Determine the direction, size, material, accessibility, valves and regulators of the piping. The engineer should be aware of the presence or possibility of magnetic fields or vibration in the specified area, availability of pneumatic or electric power and whether the area is categorized as an explosion hazard as well as any other compliance requirements or regulations.

Flow Rates

Another crucial step is determining the meter range that is required by finding out the maximum and minimum mass or volumetric flows that are going to be measured. This is followed by determining the accuracy of the flow measurement that is required.

Accuracy Requirements

Accuracy requirements should ideally be stated according to maximum, normal and minimum flow rates. The performance of flow meters above their full range makes it necessary to be aware of these requirements. For applications that involve buying and selling products according to meter readings, accuracy is vital.

Maintenance

Various factors affect the level of maintenance that flow meters require as well as their life expectancy. An essential factor is ensuring that the correct instrument is matched to the application to minimize the risk of problems.

Tags

Flow Measurement, Flow Meters

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