Working Principle of the flow meter

Fluid flow measurement is very important in an industry such as the oil refinery ( refinery ) , electricity generation ( power plants  , industrial chemicals ( petrochemicals ), Industrial waste treatment, food and beverage industry and the Pharmaceutical Industry .

electromagnetic flow meter

In the process industry such as this, requires a determination of the quantity of a fluid (liquid, gas, steam, powder ) flowing through a measuring point, either in the channel closed and open channels ( ditches, streams ). Flow parameters can be measured : volume flow rate, mass flow rate, flow velocity. Instrument for measuring the quantity of fluid flow is called flow meter .

Applications using Flow Meter has a wide coverage as part of its developers sensor flow meter, sensors and fluid interaction through the use of computer counting techniques ( computing ), transducers and signal processing to do with the unit ( transmitter ), as well as the assessment of the overall system under conditions idealized environment,  easily waterlogged conditions due to weather, conditions in areas of hazardous and explosive as well as on the location of the laboratory or in other confined space.

Flow meter has a lot of types, sizes and models, because it kind of flow meter that will be used should be completely adjusted primarily to the needs of the application in the field . Because if the selection of this type of flow meter is less precise it will cause higher costs either because of the age of the flow meter itself or the accuracy of the fluid flow measurement accuracy is less precise.

If observing the workings of flow meter that can vary according to the type of flow meter then the important thing to note such kind of fluid, fluid density, temperature, acidity of the liquid, working pressure, explosion proof environment, even the cleanliness of the fluid also should be informed as consideration to determine the appropriate type of flow meter .

In terms of the type of fluid to be measured by a flow meter apparatus is divided into 3 parts : a fluid flow meter for liquid, gas and fluid solid fluid ( flour, powder, sand and others ). Almost any type of flow meter can be used to measure the fluid flow of liquid and some types can be used to measure fluid gas ( nitrogen, oxygen, compressed air, steam and other ). Installation of flow meters while the system there are also several types of inline system where the pipe through which the fluid to be cut, Insertion type where fluid -carrying pipe and transducer in the holes Fluid flow measurement is very important in an industry such as the oil refinery (refinery), electricity generation ( power plants ), industrial chemicals (petrochemicals ), Industrial waste treatment, food and beverage industry and the Pharmaceutical Industry .

In the process industry such as this, requires a determination of the quantity of a fluid (liquid, gas, steam, powder ) flowing through a measuring point, either in the channel closed and open channels ( ditches, streams ). Flow parameters can be measured : volume flow rate, mass flow rate, flow velocity. Instrument for measuring the quantity of fluid flow is called flow meter.

Applications using Flow Meter has a wide coverage as part of its developers sensor flow meter, sensors and fluid interaction through the use of computer counting techniques ( computing ), transducers and signal processing to do with the unit ( transmitter ), as well as the assessment of the overall system under conditions idealized environment, easily waterlogged conditions due to weather, conditions in areas of hazardous and explosive as well as on the location of the laboratory or in other confined space.

Flow meter has a lot of types, sizes and models, because it kind of flow meter that will be used should be completely adjusted primarily to the needs of the application in the field. Because if the selection of this type of flow meter is less precise it will cause higher costs either because of the age of the flow meter itself or the accuracy of the fluid flow measurement accuracy is less precise.

If observing the workings of flow meter that can vary according to the type of flow meter then the important thing to note such kind of fluid, fluid density, temperature, acidity of the liquid, working pressure, explosion proof environment, even the cleanliness of the fluid also should be informed as consideration to determine the appropriate type of flow meter.

In terms of the type of fluid to be measured by a  flow meter apparatus is divided into 3 parts: a fluid flow meter for liquid, gas and fluid solid fluid ( flour, powder, sand and others ). Almost any type of flowmeter can be used to measure the fluid flow of liquid and some types can be used to measure fluid gas ( nitrogen, oxygen, compressed air, steam and other )

Installation of flow meters while the system there are also several types of inline system where the pipe through which the fluid to be cut, insertion system in which a fluid -carrying pipe and transducer in the holes of the flow meter can be installed in the pipe that had been hollowed out and clamp system on or clip on where transducer of flow meter stick enough in hand outside the pipe.

This kind of system installation based on the conditions for the fluid flow field where the existing pipe in order to reduce installation costs and the cost of investment flow meter. Due to the large size of the pipe where the diameter above 10 inch type flow meter installation using the insertion or clamp on an option to reduce costs

Installation type flow meters with Clamp System is only held on by a type of transducer Ultrasonic Flow Meter where enough of posting outside the pipe side and fastened with clamps. On the Use of  Ultrasonic flow meter clamp on there are 3 types of transducer sizes are small, medium and large.

Flow Meter is based on the use in the industrialized world that is based on the type of fluid, how to work, how to install, field conditions and the main goal in the installation of flow meters can be grouped as follows:

• Differential Pressure Flow Meters
• Variable Area Flow Meters
• Venturi Flow Meters
• Positive Displacement
• Velocity Flow Meters
• Mass Flow Meters

Portable Flow Meters

Portable flow meter hanya di miliki oleh jenis flow meter ultrasonic.  Ultrasonic portable flow meters ini mempunyai keunikan tersendiri karena flow meter ini bisa digunakan untuk mengukur debit aliran liquid di dalam pipa tanpa harus melakukan pemotongan pipa atau melubangi pipa. Cara mengoprasikan portable ultrasonic flow meters ini cukup dengan menempel  sensors ( transducer) di permukaan luar pipa, dan cara inis sering disebut dengan camp on .

Ultrasonic hand hekd flow meter cukup efektif jika digunakan untuk pengecekan aliran dalam pipa dan bisa di bawah kemana mana. Dan untuk aplikasi tertentu bisa di gunakan untuk mengecek kwalitas kecepatan aliran atau debit arus serta kebocoran dari suatu pipa yang dialiri oleh air.

Flow meter portable ultrasonic ini bisa juga di gunakan untuk mengukur berbagai macam jenis liquid dalam pipa seperti water, sea water, fuel oil, kerosene, oil, alcohol, propane dan liquid lainnya.  Clamp on Portable flow meters ini dapat digunakan untuk berbagai ukuran pipa dari ukuran pipa 1/2 inchi hingga ukuran pipa 80 inchi.  Ultrasonic flow meter clamp on portable ini juga bisa di gunakan untuk berbagai macam jenis bahan pipa baik itu pipa carbon steel, HDPE, Stainless steel, PVC maupun bahan pipa yang lain. Begitu juga maslah ketebalan pipa,  flowmeter portable ini juga bisa digunakan untuk bermacam2 ketebalan pipa.

         

Dalam penerapan dilapangan ultrasonic flow meters ini harus di lihat kelurusan dari pipa dan arah aliran dalam pipa. Sebaiknya penggunaan portable ultrasonic flow meters ini di gunakan untuk mengukur aliran dalam pipa pada arah vertikal dengan aliran naik dari bawah ke atas atau horozontal dengan jarak kelurusan yg mengikuti standrat yg di syaratkan oleh pabrik flow meter portable tersebut.

Clamp on ultrasonic flow meters ini biasanya mempunya beberapa jenis transducer dengan ukuran berbeda-beda dimana pemakainnya tergantung pada ukuran diameter pipa. Untuk peggunakan liquid yg panan transducer dari ultrasonic flow meters ini juga berbeda dan sebaiknya di tanyakan ke manufacture dan ikuti buku petunjuk sepesifikasi portable flow meters serta cara mengoprasikannya.

Pada umunya ultrasonic portable flow meters ini terdapat beberapa komponen yaitu :

1. Transmitter
2. Transducer
3. Transducer cable
4. SD card atau cable data
5. case
6. battery charger
7. chain 
8. couple compound
9. manual operasional dan accesories lainnya seperti 

Ultrasonic Portable Flow meters ini banyak di gunakan untuk isnpeksi oleh engineering, maintenance maupun produksi guna melihat dan memantau kualitas kecepatan aliran dari liquid didalam pipa. Dengan menngunakan portable flow meters ini kita bisa mengetahui performa dari pompa atau atau mesin sehingga konsistensi kwalitas produk maupun mesin bisa di identifikasi sejak awal.

Flow meter portable ini banyak di gunakan untuk berbagai industri seperti 

•  Water supply
  
• Waste water treatment
• Seawater desalinization
• Pure/Ultra-pure water
• Industrial process water
• Cooling/Heating water
• Petrochemical
• Chemical
• Crude oil
• Lubricant oil
• Beverages
•  dan lainnya

Spesifikasi yang biasanya tersedia dari ultrasonic flow meter portable ini adalah :

• Velocity range: 0 ~ ± 40ft/s (0 ~±12m/s)
• Accuracy: ±1% of reading
• Repeatability: 0.2%
• Power  supply:  11.1V  rechargeable  Lithium  Battery
• Power for 16 hours
• Output: 0/4~20mA, maximum 750Ω
• Transducers (magnetic clamp-on sensor rack)
• Measurement Pipe range: 25mm ~ 1200mm
• Protection rating: IP68
• Temperature range: -10℃  ~ 80℃)
• Transducer cable standard length: 16ft (5m)