How to choose a flow meter which is an instrument to measure the flow of a fluid either liquid (liquid flowmeter),sludge (sludge flow meter)or gas (gas flow meter), both with low and high temperature though. In choosing the type of flow meter must be adjusted to the fluid condition and the function of the flowmeter itself.
How to choose a flow meter you must know the characteristics of the fluid measured by the flow meter,starting from the level of fluid corosive where the high acidity level may be more suitable if using a flow meter from PVC / nonmetallic materials.
From the results of research the biggest mistake from buyers of flow meters and other instruments there are two reasons where flow meter buyers do not understand and understand even the difficulty of formulating flow meter specifications to be purchased.
The second cause is the flow meter sellers who basically only sell the flow meter available or ready stock immediately sold. Because it can be fatal so that the accuracy of the flowmeter is not achieved, additional benefits are not there, maintenance costs are very short for dna life time flow meters.
There are many types of flow meters used by the industry, namely electromagnetic flow meters, ultrasonic flow meters, coriolis mass flow meters and others. And in terms of applications many classified such as water meter, fuel meter, solar meter, water flow meter, mud, sewage, seawater, well water and so on. There are also based on the way of installation such as flow meter clamp on, portable flow meter, flow meter in line, flow meter insertion and open channel flow meter.
Selection of Flow Meter Type
Preferably before buying a flow meter not only based on the basic function that is to read the amount of flow from the fluid, but furthermore, the buyer of the flow meter should be able to formulate correctly about life time, budget,installation costs, maintenance costs and most importantly as optimal as to what the benefits of the flow meter you will buy.
The number of types and models and types of flow meters produced by various manufactures must be a critical point for engineers to be able to get an overview based on the application that is cooled from the purpose and usefulness of the installation of flow meters, in accordance with the way and position of flow meter installation, can get a long life time flow meter and maintenance costs are cheap.
For high-temperature fluids, of course, other materials are used. Likewise for the concentration level of fluid material flow meter type must be adjusted. For fluids applied to foodstuffs or drugs that demand pipe materials and flowmeter materials that must be food grade is more suitable if used stainles steel SUS 316L. And for corisive environments such as in the sea maybe the body and flange flow meter are more fitting if using stainless steel.
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Determine the type of flow meter
Because it requires thoroughness and understanding of fluid characteristics and their benefits, as well as how flowmeters work and flow meter function itself. There are several variables that we must determine in choosing a flow meter at the time of determining the type flow meter and flowmeter model that matches the application we expect, the varying selection of the flow meter can be included in the following questions:
- Types of Fluid to be used in flow meters: gas, water, chemical, oil, liquid gas, sludge, etc.
- The measurement of the flow meter is only on the flow or total fluid that flows or both.
- Viscosity of fluid, cleanliness of fluid (mud, lots of dirt or clean) flowing into flow meters.
- The purpose of flow cashewr: as a means of measuring flow, total volume, control, switch, delivery of electric signals that serve as control or data to a computer or hand phone via sms.
- It is necessary not to display on the flowmeter or electronic signal out put or electrical out put.
- The magnitude (max and min) of flow rate, working pressure, temperature of fluid to be measured flow meter.
- The need for a watertight system on a flow meter (water proof) or an area that is flammable or explossive or comparable.
- Use for chemicals and foods such as the acidity level of fluid or need food grade for matrial flow meters that are often used in the drug or food and beverage industry.
- The size of the pipe where the flow meter is installed includes using a flange connection system or thread or fitting.
- System installation flow meter: Vertical or horizontal.
- Other information is needed in choosing the type of flow meter because basically the flow meter can be made / ordered in accordance with the wishes of the orderer (custom).
How to Choose a Flow Meter Based on How it Is Installed and Its Function:
Inline Flow Meter
Inline Flow Meter is a type of ether flow that is the way it is installed by cutting pipes that are then given a connection either in the form of flange or thread or can also be welded directly to the pipe that is cut and there is also a type of wafer that is by plugping the flow meter on both sides of the pipe that has been given flange.
Insertion Flow Meter
Clamp On Flow Meter
Clamp on flow meter is a type of flow meter whose installation method does not cut pipes or perforate pipes but simply by attaching flow sensors in the outside of the pipe which is then clamped. This type of flow meter is now widely used for those who do not want the production process to be disrupted because the pump or valve does not need to be turned off. This type of clamp on flow meter is only owned by the type of ultrasonic flow meter so it is often called a clamp on ultrasonic flow meter.
Ultrasonic flowmeter is a type of flow meter whose way of working to measure the speed of fluid flow using ultrasound so that with the calculation of the volume flowing can be read in ultrasonic transmitters.
Using ultrasonic sensors or often called transducer ultrasonic flowmeters can measure the average speed of fluid flow in the pipe by measuring the average time difference between signal delivery time and signal reception with flow direction.
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Open Channel Flow Meter
Open channel flow meters are flow meters that can be applied to measure flow in open channel systems such as canals, rivers or trenches.
In the watershed flow meter open chanel calculates the speed of flow by considering the height of the surface. For the measurement of flow speed can use transittime flow meter or magnetic flow meter. As for the surface height of the flow using ultrasonic level sensors
The incorporation of velociti with a cross-sectional area can produce flow capacity or flow rate flow in the canal.
More info on Product Open Channel Flow Meter please click Product open channel flow meter
Flow Meter Portable
Portable flow meters began to be famous when the known flow meter type ultrasonic where the way of use and installation is quite easy and fast and can be below where.
Portable flowmeter uses a type of clamp on flow meter where the sensor or often referred to as ultrasonic transducer is enough in the clamp on the outer surface of the pipe, because the process of insatlation without cutting the pipe or perforating the pipe then the installation cost of the flow meter clamp on is very cheap and fast.
For the type of portable flow meter is usually equipped with a data logger both internally and externally and for power because of its portable nature usually uses a battery that can be charged and generally the battery is able to work at a long time above 5 hours.
More info product portable flow meter please click