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Help CenterAuto Flow VA 420 Insertion Type Flow Meter Industrial Pipeline Flow Measurement Transducer
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Product Description
The new, cost-effective VA 420 flow meter utilizes the proven thermal mass flow principle. As a result, it measures and displays actual mass flow or standard volume flow without the need for temperature or pressure compensation. The VA 420 is available in both display and non-display versions. With its compact design, the VA 420 can monitor flow and consumption in all compressed air systems—from compressors to small compressed air tools (DN 15 to DN 50). For larger pipe diameters (DN 50 to DN 300), the VA 400 insertion flow meter is also available. In addition to compressed air, it can measure other gases such as N, O, Ar, N, and CO. Installation of the VA 420 flow meter is simple and quick. The removable measuring unit is a major advantage. During calibration, the measuring unit can be quickly and easily removed without having to disassemble the entire measuring section.
Performance Features
Easy installation; measurement units can be freely selected via the keypad on the sensor head
Compressed air counter up to 1,999,999,999 m³
Reset via the keypad
20 mA analog output, pulse output (electrically isolated)
High measurement accuracy is maintained even at very low flow rates (Option for leak detection)
Low pressure drop
Thermal mass flow principle; no need to measure pressure or temperature separately
Gas type can be changed via software (N₂, O₂, CO₂, N₂O, Ar)
Technical Specifications
Country of Origin: South Korea
Measurement Units: m³/h, m³/min, l/min, cfm, m/s, kg/min, kg/h, kg/s
Air units: Ps = 1000 hPa, Ts = 20 °C
Other gas units: Ps = 1013 hPa, Ts = 0 °C
Accuracy: ± (2% of reading + 0.3% of full scale)
Temperature drift: 0.05%/K
Pressure drift: 0.05%/bar
Ambient/Process Temperature Accuracy: 23 °C ± 3 °C
Ambient/Process Humidity:
Process Pressure Accuracy: 0.6 MPa
Mounting Threads: R1/2“, R3/4”, R1“, R1.5”, R2"; DIN EN 10226 (ISO 7-1)
Measuring Principle: Thermal Mass Flow
Product Applications
Suitable for flow measurement equipment for various liquids and gases, and in all types of industrial facilities (water purification plants, wastewater treatment plants, chemical plants, ships, desalination plants, poultry and livestock wastewater treatment plants, CEDI plants, water treatment plants, oil transmission facilities, smelting facilities, new apartment buildings, air conditioning and heating systems, boiler steam measurement systems, beverage conveyance systems, etc.)
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