CN / EN

CMF-VS

Walsn VS series Coriolis mass flowmeters are a new generation of products with twin V-shaped flow tubes. The VS 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.

Product Details

1、Overview:

The VS series Coriolis mass flowmeter is a new generation of products with twin V-shaped flow tubes from Walsn. The VS 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 a higher working frequency, the VS series provides an optimal combination of performance and compactness. Online system configuration, diagnostics and data recording can be handled directly through a Hart communicator or Modbus.

The VS series flowmeter not only provides mass flow rate, but also simutaneouly measures density, temperature, volumetric flow rate, total flow and component fractions online and in real-time.

2、Features:

◆ Compact structure with a twin V-shaped tube design

◆ Self-draining

◆ Dedicated ASIC with digital closed-loop control (DLC) improves the performance of gas-liquid flow measurement

◆ Dynamic vibration balance (DVB) technology provides system stability

◆ Double-temperature compensation and high-pressure compensation improve measurement performance

3. Applicable Fluids

◆ Gases

◆ Slurries

◆ Liquids

4. Typical Applications

◆ Custody transfer

◆ Reactor feed ratio

◆ Density measurement

◆ Batch control

5. Environmental Conditions

◆ Power consumption: ≤ 20W

◆ Enclosure rating: IP65, IP67, IP68 (Remote Style Options only)

◆ Vibration limits:

a) a = 0.5g

b) Endurance sweep, under the condition of 20Hz ~ 400Hz frequency for 50 sweep cycles

◆ Impact limits: If the flow meter is well-packed, its performance will not be affected by the following impacts:

a) Acceleration: 50m/s²

b) Impact frequency: 60 times/min ~100 times/min

c) Impact: 1000 times

◆ Ex approval: Ex d ib IIC T6 Gb

◆ Electromagnetic/Electrostatic compatibility

a) Electrostatic discharge: level 3

b) Electrical fast transient/burst (EFTB) resistance: level 3

6、Specifications:

Basic Error Liquid: ±0.10%;  Gas: ±0.35%;  Liquid density error: ±0.0005g/cm³
Diameter DN5~DN80 mm (1/8 to 3 inch)
Ex approval PCEC
Mechanical Connection 316L/ Other materials required by users
Pressure Rating 10MPa (100 bar or 1450 psi)
Material Measuring tube: 316L
Protection Level IP65, IP67, IP68 (Remote Style Options only)
Medium Temperature -40℉—356℉ (-40℃—180℃)
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
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