Untuk pengukuran Fluida yang sangat membutuhkan akurasi, dikarenakan proses maupun harga dari fluida yang mahal, biasanya di tuntut akurasi tinggi pada hasil pembacaan flow meter . Ada beberapa flowmeter dengan berbagi jenis dan kelebihan serta kekurangan. Namun Begitu ada suatu flow meter dengan kemampuan akurasi yang sangat prima, dimana akurasi bisa mencapai 0.1% bahkan lebih.
Dengan kondisi dan karakteristik suatu fluida baik cairan maupun gas seperti diatas sebaiknya menggunakan flowmeter jenis coriolis mass flow meter yang mampu menjangkau akurasi 0.1% atau dibawahnya. Beberapa keunnggulan dari coriolis flow meter ini adalah :
- Akurasi bisa mencapai 0.1% atau lebih baik lagi
- Repeatability : lebih baik dari 0.05%
- Tahan terhadap korosi karena material sensornya stainless steel
- Pperubahan temperature tidak mempunya pengaruh pada akurasi pembacaan
- Aman jika Fluida mengandung partikel solid atau kotor karena tidak ada bagian parts sensor yang bergerak/berputar sehingga bisa dikatakan free maintenance.
- Seting pembacaan dari mass bisa di setting ke volumetrik
- Cocok untuk di operasikan pada filling dan custody
- Suitable for virtually any mass flow application, such as: Batching, Dosing, General flow control, Injections, Filling
- Loading of boats, vessels, rail tank wagons
- High temperatures and other challenging applications
- Highly viscous media (low pressure drop and excellent performance at low flow conditions)
- Properly used for corrosive liquids and Low Flow
- Properly used for beverages that require food grade instrument
- The outstanding features include : Suitable for pressure up to 450 bar
- Size : 1/4" - 12 " :
- Measuring ranges : 0.002 kg/min to 25.000 kg/min ( depending on pipe size )
- Accuracy : 0.1% and better
- Repeatability : better than 0.05%
- Optimised solutions for your batching operation
- Extra compact design with minimal space requirement
- EEx Approvals (i.e. ATEX, CSA, ...)
- Custody Transfer Approvals (i.e. PTB, NMI, ...)
- As heavy duty version available (increased wall thickness of measuring pipes for additional safety - 250 bar)
- No pressure effect – no deterioration of accuracy due to pressure changes by the patented Omega Shape
- Medium flow rates in combination with high operating pressure
- Patented torsion swinger design assures most stable and drift free measurement,
- Increased signal to noise ratio by torsion swinger
- Longest life time and increased safety (low stress in welds and increased wall thickness against abrasion)
- No moving parts, practically no maintenance
- Removable connection block
- Typical measuring ranges : 0.002 kg/min to 25.000 kg/min
- Flow Accuracy : 0.1% and better
- Repeatability : better ± 0.05% of rate
- Density : better than ± 0.001 g/cc
- Temperature : -200 to +350°C
- Pressure range : Measuring Loops max. 93 bar - max CL 600 / PN 40
- Material of Wetted Parts :
- 1.4571 / SS 316Ti (standard),
- 1.4539 / SS 904L on request,
- Hastelloy C22 on request
- Tantalum and Other material on request
- Housing :
- Stainless Steel: 1.4301 / SS 304 ( standart) and others on request
- Protection class: IP 65 (Nema 4X) and higher on request
- Electrical connection
- Junction box / aluminium coated (standard) IP 65 (Nema 4X) (Junction box in SS optional)
- Cable entry M25 x 1.5 (M20 x 1.5, ½" and ¾" NPT optional)
- Max cable length between RHM and RHE :
- 100 m (330 ft)
- 200 m (660 ft) only with factory approval
- Approvals
- ATEX (CESI 02 ATEX 053 X) : Ex II 1 G, EEx ia IIC T6-T1
- CSA (220705) Class I, Div 1 and 2, Groups A, B, C and D;Type 3
- Custody Transfer Approvals (PTB 1.32-97027224 and NMI TC 3382)
- PED according to directive 97/23/EC available
- 3A Sanitary Approvals
- Transmitter and Display mounting : wall mounting, Pannel Mounting, Rack Mounting
- Outputs :
- 2 analog outputs,
- 1 frequency/pulse output
- 3 digital outputs (Lt, +/-, error...)
- Inputs : 2 inputs (hold, reset, zero)
- Power supply :
- 230 VAC +/- 10% or
- 115 VAC +/- 10% or
- 24 VDC
- Cable entries: 4 x M25 x 1.5 - others optional
- Interface :
- RS 422/485/232 - optional
- HART - optional
- Power consumption : < 15 W