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CS Instruments VA 500 - Flow meter for compressed air & gases

Manufacturer:
Thermal massflow sensor for compressed air and gases. With our VA500 it is possible to monitor your consumption and analyze your leakage flows with just one measuring device.
Part Number: VA500
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Thermal massflow sensor for compressed air and gases

Recording and reducing energy costs and CO2 emissons while increasing the sustainability of any compressed air system. With our VA500 it is possible to 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 of the VA 500 flow meter:

  • Measurement of mass flow therefore direct output of standard volume flow
  • Highly accurate at small as well as higher flow rates
  • Pressure and temperature compensated by the thermal mass flow principle
  • Quick and easy installation via a ½" ball valve
  • No moving parts, thus low maintenance
  • Vanishingly low pressure drop due to vanishingly low blockage of the diameter
  • Can be used for compressed air and non-corrosive gases such as nitrogen, oxygen, argon, helium, etc

Technical details

  • 04...20 mA, pulse and a Modbus RTU (RS 485) interface as standard.
  • Optional: Interfaces such as Modbus TCP (Ethernet), PoE, M-Bus Optional: Bi-directional measurement
  • Pressure thight up to 50 bar
  • Temperature range up to 110°C
  • Protection class IP65
  • Integrated display for showing the measured values
  • Can be used from 1/2" up to 40", larger diameters on request
  • Easy installation under pressure
  • Settings can be changed via the the display
  • Main counter reading can be reset via the display
  • Suitable for gas velocities up to 224 Nm/s
  • Highly precise with an accuracy of ± 1.5% or ± 1% of the measured value ± 0.3% of the final value

How to install a compressed air flow meter under pressure?




Technical Information

Parameters m³/h, l/min (1000 mbar, 20 °C) in case
of compressed air or Nm³/h, Nl/min
(1013 mbar, 0 °C) in case of gases
Units adjustable via keys at
display
m³/h, m³/min, l/min, l/s, ft/min, cfm, m/s,
kg/h, kg/min, g/s, lb/min, lb/h
Adjustable via keypad Diameter for volume flow calculation,
counter resettable
Sensor Thermal mass flow sensor
Measured medium Air, gases
Gas types are adjustable
over CS service software or
CS data logger
Air, nitrogen, argon, helium, CO2, oxygen, vacuum
Measuring range See table page 12
Accuracy:
(m.v.: of meas. value) (f.s.:
of full scale)
± 1.5% of m.v. ± 0.3 % of f.s.
on request:
± 1% of m.v. ± 0.3% of f.s
Operating temperature -30...110 °C sensor tube
-20...85 °C with pressure sensor
-20...+70 °C housing
Operating pressure -1…50 bar (for pressure > 10 bar - order
additional high-pressure protection)
Digital output RS 485 interface, (Modbus-RTU), optional: Ethernet interface PoE, M-Bus
Analogue output 4…20 mA for m³/h or l/min
Pulse output 1 pulse per m³ or per litre electrically
isolated. Pulse weight can be set on the
display. Alternatively, the pulse output
can be used as an alarm
Supply 18…36 VDC, 5 W
Burden < 500 Ω
Housing Polycarbonate (IP 65)
Sensor tube Stainless steel, 1.4301
Installation length 220 mm, Ø 10 mm
Mounting thread G 1/2″, 1/2″ NPT male thread
Ø housing 65mm
Mounting position any

Thermal massflow sensor for compressed air and gases

Recording and reducing energy costs and CO2 emissons while increasing the sustainability of any compressed air system. With our VA500 it is possible to 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 of the VA 500 flow meter:

  • Measurement of mass flow therefore direct output of standard volume flow
  • Highly accurate at small as well as higher flow rates
  • Pressure and temperature compensated by the thermal mass flow principle
  • Quick and easy installation via a ½" ball valve
  • No moving parts, thus low maintenance
  • Vanishingly low pressure drop due to vanishingly low blockage of the diameter
  • Can be used for compressed air and non-corrosive gases such as nitrogen, oxygen, argon, helium, etc

Technical details

  • 04...20 mA, pulse and a Modbus RTU (RS 485) interface as standard.
  • Optional: Interfaces such as Modbus TCP (Ethernet), PoE, M-Bus Optional: Bi-directional measurement
  • Pressure thight up to 50 bar
  • Temperature range up to 110°C
  • Protection class IP65
  • Integrated display for showing the measured values
  • Can be used from 1/2" up to 40", larger diameters on request
  • Easy installation under pressure
  • Settings can be changed via the the display
  • Main counter reading can be reset via the display
  • Suitable for gas velocities up to 224 Nm/s
  • Highly precise with an accuracy of ± 1.5% or ± 1% of the measured value ± 0.3% of the final value