Cara Installasi Ultrasonic Clamp On Flow Meter

Ultrasonic Flow meter merupakan flow meter yang mempunyai dasar kerja pada suara ultra, dimana sensor suara ini bekerja pada sensor yang disebut dengan istilah transducer. Ada dua jenis flow meter ultrasonic yang cukup dikenal luas yaitu system transit time dan sistim doppler..

Dalam hal installasi ultrasonic flow meter ini ada beberapa cara installasi yaitu system inline dimana pipa harus dipotong dan sensor ultrasonic di pasang dengan menghubungkan pipa yang telah dipotong baik dengan flange maupun ulir. Untuk system pemasangan ini perlu diperhatikan jenis flange atau ulirya dimana disesuaikan dengan standrt dari masing masing pengguna di lapangan. Begitu juga mengenai besaran presssure  juga harus disesuiakan dengan pressure pompa yang mengalirkan cairan.

Sedangkan jenis kedua yaitu Insertion dimana Sensor ultrasonic flow meter atau transducer dipasang pada pipa yang telah dilubangi dengan mengelas fitting transducer pada permukaan pipa. Pada Proses ini diperlukan kehati2an dan ketepatan agar posisi pengelasan tidak bergeser dan sudut transducer benar-benar tepat sesuai yang disyaratkan. Pada pengecekan sudut trnasducer saat setelai pengelasan fitting perlu di ukur lagi agar saat memasukan parameter ke transmitter ultrasonic flow meter tidak terjadi penyimpangan.

Sedangkan jenis ketiga adalah installasi dengan sistem clamp on, dimana transducer yang merupakan sensor ultrasonic di tempelkan di permukaan pipa dimana pipa tidak perlu di potong atau di lubangi ( non destructive) dengan cara di ikat atau di clamp sehingga transducer menempel dengan baik di permukaan pipa.

Sebelum memasang sensor ada beberapa parameter an harus di masukans eperti dimeter pipa, ketebalan pipa, jenis material pipa, jenis cairan dan jarak sensor. Namun yang perlu diperhatikan pertama sebelum menentukan parmeter tersebut adalah lokasi atau posisi pemasnagan transducer ultrasonic flow meter pada pipa. Dimana lokasi ini harus memenuhi syarat syarat upstream dan down stream agar kekuatan signal dari ultrasonic flow meter dapat memenuhi standart perhitungan flow cairan.

Kesalahan Penentuan lokasi pemasangan transuder akat berakibat fatal pada kekuatan signal yang berakibat akurasi pembacaan akan besar penyimpangannya bahkan bisa menuju ke error.

Setelah semua parmeter dimasukan dengan benar pada transmitter ultrasonic flow meter maka perlu dilakukan pengecekan kekuatan signal apabila signal yang didapatkan cukup bagus maka kita bsia mengunci semua parameter agar idak berubah khususnya saat listrik mati.

Untuk ultrasonic flow meter ini biasanya dapat langsng ditampilkan pada pembacaan velocity, flow rate dan totalizer. Sedangkan units parameter bisa disetting baik menggunakan satuan metric maupun english dengan satuan unit liter, m3. gallon, barrel dan sebaigainya begitu juga untuk waktu bisa di tetting ke second, minute, haour ataupun day tergantug pada kebutuhan di lapangan.

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Ultrasonic Flow Meter jWAVE

Portable Ulrasonic Flow Meter
Ultrasonic Flow Meter jWAVE
Now you can capture accurate and reliable flow readings with your mobile device, with less hassle and in less time—wherever you need a flow or volume measurement.

No wires. No bulky electronics box to lug around. Your ultrasonic sensor hardware installs on the outside of your pipe in a snap—and senses through the pipe wall. Your mobile device displays readings and helps you set up the hardware.

And Bluetooth replaces the wires.
So you’ll get your job done more quickly, every time. What’s the jWAVE?
The jWAVE Flow Meter solution starts with the jWAVE App (downloadable from the app stores) and works on both iOS and Android devices.

The companion jWAVE Sensor is a compact, clamp-on ultrasonic transducer device that wirelessly transmits flow measurements. With a programmable controller, the output signal can be fed direct, with no other conditioning required.

The jWAVE is highly portable. Just bring the rechargeable clamp-on sensor in its lightweight, weatherproof case, along with a tablet or smartphone (iOS or Android). Bluetooth connectivity replaces wires, and the jWAVE App guides you through your application setup.

The convenient Cam Cleat lets you mount the sensor on any pipe in seconds—no cumbersome clamps required. Bi-directional readings are transmitted to your mobile device for display, and your location’s settings are stored in the jWAVE App, ready for reuse.

Now simply release the cleats, then take the compact sensor on to your next location.

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Paddle Wheel Flow Meter

The IP100/200-Series are adjustable depth insertion paddle wheels that come in brass, PVC, or 316 stainless models to fit 3” to 40” pipe. Adapters mate with standard 1-1/2” (11x/21x) or 2” (15x/25x), or PVC (11x/21x) NPT threaded fi ttings such as saddles and weldolets which may be purchased either locally or from Seametrics.

Ruby bearings and a non-drag Hall-effect sensor give these meters the widest fl ow  range of any of the paddle wheel types. A sensor detects the passge of miniature magnets in the six rotor blades. The resulting square-wave signal can be sent for hundreds of feet over unshielded cable without a transmitter and connected directly to many PLC’s and other controls without any additional electronics.

A modular system of electronics can be installed directly on the flow sensor or mounted remotely. The FT430 (externally powered with pulse), FT440 (loop powered), and FT450 (battery powered) all provide digital rate and total displays, as well as a programmable pulse; the FT440 also provides a 4-20 mA analog output. The AO55 is a blind analog (4-20 mA) transmitter. Programmable pulse for pump pacing is available with the PD10.

The “hot-tap” models (IP15x/25x) can be installed or serviced without shutting down the line by means of a 2” full-port isolation valve that comes with a nipple for installation on the pipe fitting.In most circumstances, no special tool is required.

 

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