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VA 521 - Compact Inline flow meter for compressed air and other gas types

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The newly developed VA 521 combines modern digital interfaces for connection to an energy monitoring system with a small, compact design.
Part Number: VA 521
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VA 521 - Compact Inline flow meter for compressed air and other gas types

A Flow sensor with integrated flow straightener / no inlet sections necessary

The newly developed VA 521 combines modern digital interfaces for connection to an energy monitoring system with a small, compact design. The VA 521 is ideally used when air compressors are to be integrated into an energy monitoring network. 

The high-contrast, integrated display also displays the current values rotated by 180° if desired (very useful for overhead installation). Depending on the configuration, two of the following values can be displayed: 

  • Current consumption in m³/h, l / min, ...
  • Total consumption (meter reading) in m³, l, kg
  • Temperature measurement

The advantages at a glance:

  • Screw thread for easy installation in existing piping through integrated measuring block (suitable for 1/2“, 3/4 ̋, 1“, 1 1⁄4 ̋, 1 1⁄2“ or 2" lines)
  • Compact, small design - for use in machines, behind maintenance unit at the end user
  • All interfaces are programmable via the display
  • Modbus RTU output
  • 4...20mA analog output for actual flow
  • Pulse output total flow (counter reading), galvanically isolated. Optionally M-Bus, Ethernet-Interface, or PoE

VA 521 - Compact Inline flow meter for compressed air and other gas types

A Flow sensor with integrated flow straightener / no inlet sections necessary

The newly developed VA 521 combines modern digital interfaces for connection to an energy monitoring system with a small, compact design. The VA 521 is ideally used when air compressors are to be integrated into an energy monitoring network. 

The high-contrast, integrated display also displays the current values rotated by 180° if desired (very useful for overhead installation). Depending on the configuration, two of the following values can be displayed: 

  • Current consumption in m³/h, l / min, ...
  • Total consumption (meter reading) in m³, l, kg
  • Temperature measurement

The advantages at a glance:

  • Screw thread for easy installation in existing piping through integrated measuring block (suitable for 1/2“, 3/4 ̋, 1“, 1 1⁄4 ̋, 1 1⁄2“ or 2" lines)
  • Compact, small design - for use in machines, behind maintenance unit at the end user
  • All interfaces are programmable via the display
  • Modbus RTU output
  • 4...20mA analog output for actual flow
  • Pulse output total flow (counter reading), galvanically isolated. Optionally M-Bus, Ethernet-Interface, or PoE