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Walsn's US series Coriolis mass flowmeters use a classic U-shape for their twin flow tubes. The US series is equipped with a transmitter utilizing a digital signal processor (DSP), integrated with digital closed-loop vibration control (DLC), which performs real-time calculations and continuously monitors conditions of the flow sensor.
1. Overview:
Walsn US series Coriolis mass flowmeters use a classic U-shape for their dual flow tubes. The US series is equipped with a transmitter utilizing a digital signal processor (DSP), integrated with digital closed-loop vibration control (DLC), which performs real-time calculations and continuously monitors conditions of the flow sensor. Featuring higher sensitivity, the US series provides high accuracy measurement, a higher turn-down and a wide selection of sizes. Online system configuration, diagnostics and data recording can be handled directly through a Hart communicator or Modbus.The US series flowmeter not only provides mass flow rate, but also simultaneously measures density, temperature, volumetric flow rate, total flow and component fractions online and in real-time.
2. Features:
◆ Twin U-shaped tube design – provides excellent stability and repeatability
◆ Dedicated ASIC with digital closed-loop control (DLC) improves the performance of gas-liquid flow measurement
◆ Dynamic vibration balance (DVB) technology enhances system stability
◆ 2-point temperature compensation and process pressure compensation
◆ Special configurations for difficult applications (e.g. high temperature)
3. Applicable Fluids
◆ Gases
◆ Slurries
◆ Liquids
4. Typical Applications:
◆ Custody transfer
◆ Reactor feed ratio
◆ Density measurement
◆ Batch control
5. Specifications:
Basic Error | Liquid: ±0.10%; Gas: ±0.35%; Liquid density error: ±0.0005g/cm³ |
Diameter | DN1~DN250 mm (1/25 to 10 inch) |
Ex approval | PCEC |
Mechanical Connection | 316L/ Hastelloy alloy/Other materials required by users |
Pressure Rating | 10 MPa (100 bar or 1450 psi) |
Material | Measuring tube: 316L, Hastelloy alloy |
Protection Level | IP65, IP67, IP68 (Remote Style Options only) |
Medium Temperature | -40℃—180℃ (-40℉—356℉) ; -40℃—350℃ (-40℉—662℉); -200℃—180℃ (-328℉—356℉) |
Ambient Temperature | -25℃ — 60℃ (-13℉ — 140℉) (with the LCD display); -40℃ — 85℃ (-40℉ — 185℉) (without the LCD display) |
Repeatability | Liquid: ≤0.05%; Gas: ≤0.17% |
Cable for Sensor | 10m (The remote style is optional.) |
Electrical Connection | M20*1.5 Seal, NPT1/2 |
Output signal | Analog + Pulse/Frequency; Analog+ Pulse/Frequency + HART; Analog+ Pulse/Frequency + RS485; Profibus PA/DP; FF; Specially customized |