Thermal mass flow-meter TESTO

* 4 diameter types:
o DN 15: 0,25 to 75 Nm3/h
o DN 25: 0,75 to 225 Nm3/h
o DN 40: 1,3 to 410 Nm3/h
o DN 50: 2,3 to 700 Nm3/h

* Parameters: standard volumetric flow rate in Nm³/h or Nl/min; consumption quantity in Nm³; media temperature in °C
* Output signals: The following 2 outputs are enabled for selection at the same time:
o Analog output, 4 to 20 mA (4-wire)
o Pulse output
o 2 switch signals, programmable (dependent on consumption or volumetric flow rate, time-based or non time-based, NC or NO contact, hysteresis, window)
* Extremely easy to operate using just 2 control buttons
* Design with inflow stretch
o Advantage: reliable accuracy, including in installed state!
o Reason: The sensor is calibrated to the pipe section (Nm³/h not m/s) -> optimum flow profile, hence no loss of accuracy through specification of incorrect pipe diameter, incorrect positioning (depth/torsion)!

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