testo 6441-6444 Compressed air counter DN 15-50

Description

  • Measurement of norm volume flow in the measuring range
    0.25 to 700 m3/h (DN15 to DN50 or ½’’-2’’); consumption
    quantity in m3; media temperature in °C
  • Highest flexibility thanks to different signal outputs:
    – Analog output 4 to 20 mA (4-wire)
    – Pulse output
    – 2 switch outputs (parameterizable: consumption or volume
    flow-dependent, opener, closer, hysteresis, window)
  • Built-in totalizer, even without additional analysis unit
  • Operating menu with LED display