1、Overview：

The VS series Coriolis mass flowmeter is a new generation of product with twinned micro bend flow tubes from Walsn. The Walsn mass flow meter is equipped with a transmitter utilizing a digital signal processor (DSP), integrated with digital closed-loop vibration control (DLC), which performs calculations and monitors diagnostic functions of the sensor. This provides high accuracy measurement, wide range ability and excellent reliability for you. Online node-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 can also calculate: density, temperature volumetric flow rate, total flow and component fractions online and in real-time. 

2、Features：

◆ Compact structure with micro bend flow tube design
◆ Self-draining flowtube design
◆ 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 installed 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：