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

The ideal device for energy monitoring in compressed air and other gas systems with many consumers.

The ideal device for energy monitoring in compressed air and other gas systems with many consumers.

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 always used when many machines (compressed air consumers) 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

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A Division of Air Dryer Technology

A Division of Air Dryer Technology


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