VA 550 - Thermal mass flow sensor for flow measurement
Flow meters for compressed air and other technical gases
Reduce your energy costs and increase your sustainability with the VA 550. Monitor your consumption and analyze your leakage flows with just one measuring device. Due to its design, it is also ideal for mobile measurements.
Advantages at a glance:
Flow meters for compressed air and other technical gases
Reduce your energy costs and increase your sustainability with the VA 550. Monitor your consumption and analyze your leakage flows with just one measuring device. Due to its design, it is also ideal for mobile measurements.
Advantages at a glance:
- All wetted parts are made of stainless steel, especially for applications with high demands on cleanliness and surface quality
- Rough industrial applications can be realized due to robust aluminum housing
- Recommended for flammable gases such as natural gas, hydrogen, biogas, etc. due to ATEX or DVGW approval
- Measurement of mass flow rate, direct output of standard volume flow rate
- Highly accurate at small as well as large flows
- Pressure and temperature compensated by the thermal mass flow principle
- Quick and easy installation via a standard ½'' ball valve
- No moving parts, therefore low maintenance
- Vanishingly low pressure loss due to vanishingly low blockage of the diameter
Technical details of the VA 550 flow meter
- 04...20 mA, Pulse and a Modbus RTU (RS 485) interface as standard, optional interfaces like Modbus TCP (Ethernet), PoE and M-Bus available
- Pressure resistance up to 100 bar
- Temperature range up to 180°C
- Protection class IP 67
- Integrated display for a visualization of the measured values
- Can be used from DN 20 to DN 2000, larger diameters on request
- Easy installation under pressure
- Settings adjustable via the keys of the display
- Main counter reading can be reset via the display
- For velocities up to 224 Nm/s
- Highly accurate with an accuracy of ± 1.5% or ± 1% of m.v. as well as ± 0.3% of f.s.
US 5921 
GB 5266 
CA 4795 
AU 4681 
NZ 2749 
IE 2715 
BR 1875 
CN 909 
