CMF-VS

walsn_cmf_vs

 

 

 

 

 


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:
Basic Error
Liquid: ±0.10%;  Gas: ±0.35%;  Liquid density error: ±0.0005g/cm3
Diameter(mm)
DN5~DN80
Anti-explosion
CSA/PCEC/ATEX/IEC
Flange
316L/Titanium/Hastelloy alloy/Other materials required by users
Pressure Rating
10MPa
Material
Measuring tube: 316L, Titanium Alloy
Protection Level
IP65, IP67, IP68 (Remote Style Options only)
Medium Temperature
-40℉~356℉ (-40℃~180℃); -40℉~662℉ (-40℃~350℃); -400℉~662℉ (-240℃~350℃)
Ambient Temperature
-25℃—60℃ (-13℉—140℉) (with LCD); -40℃—85℃ (-40℉—185℉)  (without LCD)
Repeatability
Liquid: ≤0.05%;  Gas: ≤0.17%
Cable for Sensor
10m (The divided type is optional.)
Electronic Connection
M20*1.5 Seal, NPT1/2
Output signal
Analog + Pulse/Frequency; Analog+ Pulse/Frequency + HART; Analog+ PulseFrequency + RS485; Profibus PA/DP; FF; Specially customized