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Micro Flow Vortex Gas Flowmeter Model: MVF***

CE

The Micro Flow Vortex Gas Flowmeter achieves a wide measurement range of 100:1 by employing a Micro Flow sensor, our proprietary thermal flow velocity sensor, to serve as the Karman vortex detector.
Integrating the temperature and pressure compensation mechanisms into this unit eliminates the need to compensate for temperature and pressure externally, so this flowmeter makes possible a significant cost reduction.

This flowmeter is ideal for flow rate management and per-building consumption management of fuel gas, various industrial gases, and factory air that are used in production processes and testing devices.



■ Specifications

Model number MVF050 MVF080 MVF100 MVF150
Bore 50A 80A 100A 150A
Flow rate range (mass flow rate range differs depending on the operating pressure) When pressure is 0.1 MPa 8 to 428m³/h
(normal)
11 to 946m³/h
(normal)
15 to 1457m³/h
(normal)
32 to 3135m³/h
(normal)
When pressure is 0.3 MPa 9 to 854m³/h
(normal)
19 to 1886m³/h
(normal)
30 to 2904m³/h
(normal)
63 to 6249m³/h
(normal)
When pressure is 0.5 MPa 13 to 1280m³/h
(normal)
29 to 2826m³/h
(normal)
44 to 4352m³/h
(normal)
94 to 9364m³/h
(normal)
When pressure is 0.7 MPa 18 to 1706m³/h
(normal)
38 to 3765m³/h
(normal)
58 to 5799m³/h
(normal)
125 to 12478m³/h
(normal)
When pressure is 0.98 MPa 23 to 2302m³/h
(normal)
51 to 5081m³/h
(normal)
79 to 7825m³/h
(normal)
169 to 16838m³/h
(normal)
Applicable gas types Air, nitrogen, argon, oxygen (select model number with oil-free processing), carbon dioxide gas, city gas 13A, methane, propane, butane,
and other inert gases and various mixed gases outside of the explosion limit range
Volumetric flow rate accuracy ±2 % rdg at 14 m³/h or higher ±2 % rdg at 20 m³/h or higher ±2 % rdg at 29 m³/h or higher ±2 % rdg at 52 m³/h or higher
For air, relative to mass flow rate at 23 °C and 0.5 MPa. This value varies depending on the operating pressure and flow rate range.
Accuracy after temperature/pressure compensation ±3.3 % rdg at 75 m³/h (normal) when pressure is 0.5 MPa ±3.3 % rdg at 110 m³/h (normal) when pressure is 0.5 MPa ±3.3 % rdg at 157 m³/h (normal) when pressure is 0.5 MPa ±3.3 % rdg at 287 m³/h (normal) when pressure is 0.5 MPa
This value varies depending on the operating pressure and flow rate range. Since the gauge pressure sensor is used as pressure sensor, error caused by change of atmospheric pressure is not included here.
Minimum measurement flow rate
(when pressure is 0.1 MPa)
8m³/h
(normal)
11m³/h
(normal)
15m³/h
(normal)
32m³/h
(normal)
Operating pressure range Model number: MVF***1CU*011**00: 0 to 0.1 MPa (±2 % FS @23 °C)
Model number: MVF***3CU*011**00: 0 to 0.3 MPa (±2 % FS @23 °C)
Model number: MVF***0CU*011**00: 0 to 1.0 MPa (±1 % FS @23 °C)
Connection Wafer connection
Power supply 24 V DC
Mass (kg) 6.3 6.6 9 17

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