Yokogawa RAKD

Metal Variable Area Meter

ENGLISH

Yokogawa RAKD

Metal Variable Area Meter

The small metal Rotameter RAKD differentiates itself from other comparable variable area meters by means of light and guided float design offering the smallest measurable flow ranges in the market. RAKD meters can be fitted with a fine control valve and are designed with horizontal process connections.

An integrated flow controller based on the differential pressure principle, which allows a constant flow rate to be maintained regardless of any variations in process pressure, is just one of the many different options available. The RAKD with either standard or fail safe limit switches is suitable for safety applications up to SIL level 2. The configuration with valve and controller reaches SIL level 1.

The RAKD Rotameter combines several benefits of the float principle: a robust design, reliable measurements, independence of the electrical power supply when operated as mechanical pointer instruments and an electrical output signal. They are moreover easy to install and require no maintenance. Both the RAMC and the RAKD are packaged in an attractive, all-stainless steel housing and boast a long service life under the harshest industrial conditions.

INDONESIAN

Yokogawa RAKD

Metal Variable Area Meter

Rotameter logam kecil RAKD membedakan dirinya dari meter area variabel lain yang sebanding melalui desain pelampung yang ringan dan terarah yang menawarkan rentang aliran terkecil yang dapat diukur di pasaran. Meter RAKD dapat dipasangi katup kontrol halus dan dirancang dengan koneksi proses horizontal.

Pengendali aliran terintegrasi berdasarkan prinsip tekanan diferensial, yang memungkinkan laju aliran konstan dipertahankan terlepas dari variasi tekanan proses apa pun, hanyalah salah satu dari sekian banyak opsi yang tersedia. RAKD dengan sakelar batas standar atau fail safe cocok untuk aplikasi keselamatan hingga level SIL 2. Konfigurasi dengan katup dan pengendali mencapai level SIL 1.

Rotameter RAKD menggabungkan beberapa manfaat dari prinsip pelampung: desain yang kuat, pengukuran yang andal, independensi catu daya listrik saat dioperasikan sebagai instrumen penunjuk mekanis dan sinyal keluaran listrik. Selain itu, keduanya mudah dipasang dan tidak memerlukan perawatan. Baik RAMC maupun RAKD dikemas dalam wadah baja antikarat yang menarik dan memiliki masa pakai yang lama dalam kondisi industri yang paling keras.

Specifications

For Pipe Sizes	DN 15 to DN 25 (1/4 inch to 1 inch)
Process Connections	Flange, threaded, cutting ring, nozzle and Swagelok
Measuring Range	Water 20 °C: 0.1 l/h to 250 l/h Air 20 °C 1 bar abs.: 4 l/h to 8000 l/h
Wetted Parts Material	1.4571 (AISI 316Ti) Hastelloy, Monel and Titanium on request
Process Temperature	-25 °C to + 250 °C
Process Pressure	160 bar, higher pressures on request
Ambient Temperature	-25 °C to 80 °C
Measuring accuracy acc. VDI/VDE 3513 sheet 2 (q_G=50 %)	4 %
Hazardous Area Approvals	ATEX, IECEx, FM, NEPSI, EAC and KOSHA
Signal Outputs	Analog 4 to 20 mA, pulse output
Power Supply	24 V DC 2-wire
Degree of Protection	IP66 / IP67
Suitable for Applications acc. IEC 61508 and Machinery Directive ISO 13849-1	Yes
Additional Features	Limit switches for low/high alarms Fine control valves Pressure controller Easy installation with Quickon connector