VACOMASS® flow meter - for aeration air

The VACOMASS® air flow meters are remote transmitters for measuring aeration air at temperatures up to 130C and pressures up to 8 bar. The dynamic response of the system is ideal for monitoring, totalization and control. Constant accuracy is easily maintained over a measurement span of 1: 100. Repeatability is better than +/-0.15% of the measured value.

The accuracy of the instrument depends on the installation and the flow profile at the installation point. If the straight pipe run in front of and behind the sensor is insufficient, or if the flow is disturbed by fittings or other installations, the probe should be placed directly in front of the control valve. Depending on the type of valve and the required measurement accuracy, a correction of the signal based on valve position (real-time stroke compensation) may be necessary. This can occur either directly in the sensor head (Model AL100) or in a separate electronic module VACOMASS® flexcontrol.

The following models are available:
VACOMASS® flow meter SS:  The electronics are located in a compact, pressure-rated stainless steel body (SS 1.4571/316Ti) with a sealed connector box. An integrated display is an option.
VACOMASS® flow meter AL:  The electronics are located in a compact aluminium body. An integrated display is an option.
VACOMASS® flow meter AL DIN:  The electronics are located in a compact aluminium body.
VACOMASS® flow meter AL 100:  The electronics are located in a compact aluminium body. An integrated display is an option. The unit has an analog input for the position signal from the control valve, to allow correction of the raw flow signal (stroke compensation) to achieve an accurate flow measurement.
VACOMASS® flow meter multi:  In large diameter pipes it might be advisable to install several flow sensors at various installation depths to capture a weighted average value for correct measurements in uneven flow profiles. All sensor models (SS, AL, AL DIN) can be used. The VACOMASS® flexcontrol module processes the signals.

• air flow meter using thermal dispersion technology
• direct measurement of gas flow at standard conditions in Nm³/hr
  
• sensor made of stainless steel
  
• without moving parts without pressure drop, rugged, no wear and maintenance
  
• dynamic behavior of the system very well suited for monitoring, balancing and control