Compressed air, gases sensors

VA 420

Consumption counter for compressed air and gases

  • Easy and affordable installation (suitable for 1/4", 1/2", 3/4", 1", 11/4", 1½" or 2" lines)
  • Units freely selectable via keypad m³/h, m³/min, l/min, l/s, kg/h, kg/min, kg/s, cfm
  • Compressed air counter up to 1,999,999,999 m³. Resettable to "zero" via keypad
  • Analogue output 4...20 mA, pulse output (galvanically separated)
  • High measuring accuracy also in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Gas types adjustable via software (nitrogen, oxygen, CO2, nitrous oxide, argon)

Technical data VA 420 >> PDF



VA 400

Consumption sensor for compressed air and gases

  • Integrated display for m3/h und m3
  • Depth scale for accurate installation
  • Usable from 1/2" to 12" (DN 300)
  • Easy installation under pressure
  • 4...20 mA analogue output for m3/h resp. m3/min
  • Pulse output for m3
  • Inner diameter adjustable via keypad
  • Consumption counter resettable

Technical data VA 400 >> PDF