Compressed Air Systems, Inc.
Compressed Air Systems, Inc.
9303 Stannum StreetTampa, FL 33619-2658
Toll: 855.464.8525
Ph: 813.626.8177
Fx: 813.628.0187
Email: [email protected]
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Display shows 2 values at the same time:
  • Present flow in m³/h, CFM
  • Total consumption (counter reading) in CF
  • Temperature measurement
Readout values in the display can be rotated by 180º, e.g. for overhead installation.
VA 520 Inline Flowmeters
VA 520 Inline Flowmeters - 2
Unit of Measure
Items VA 520 Inline Flowmeters
0695 2521
VA 520 Flowmeter with Integrated DN 15 Measuring Section with Flange
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 VA 520 Inline Flowmeters
0695 2522
VA 520 Flowmeter with Integrated DN 20 Measuring Section with Flange
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 VA 520 Inline Flowmeters
0695 2523
VA 520 Flowmeter with Integrated DN 25 Measuring Section with Flange
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 VA 520 Inline Flowmeters
0695 2526
VA 520 Flowmeter with Integrated DN 32 Measuring Section with Flange
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 VA 520 Inline Flowmeters
0695 2524
VA 520 Flowmeter with Integrated DN 40 Measuring Section with Flange
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Description N/A Display shows 2 values at the same time:
  • Present flow in m³/h, CFM
  • Total consumption (counter reading) in CF
  • Temperature measurement
Readout values in the display can be rotated by 180º, e.g. for overhead installation.
Approve Payments N/A Finance with Approve Payments

Parameters N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0 ºC) in case of gases
Units Adjustable Via Keys at Display N/A CFM ft/min g/s kg/h kg/min l/s lb/h lb/min m/s m³/h m³/min
Sensor N/A Thermal Mass Flow Sensor
Measured Medium N/A Air Gases
Gas Types are Adjustable Over CS Service Software or CS Data Logger N/A Air Argon CO2 Nitrogen Oxygen
Accuracy N/A ± 0.3% of Full Scale (F.S.) ± 1.5% of Measured Value (M.V.)
Accuracy on Request N/A ± 1.0% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.)
Operating Temperature N/A -22 to 176 ºF
Operating Temperature with Pressure Sensor N/A -25 to 349 ºF
Operating Pressure N/A -1 to 232 psi
Optional Pressure N/A Up to Nominal Pressure (PN) 40
Digital Output N/A M-Bus Modbus-Remote Terminal Unit (RTU) Optional: Ethernet Interface (PoE) RS 485 Interface
Analog Output for Cubic Feet Per Minute (CFM) N/A 4 to 20 mA
Pulse Output N/A 1 pulse per CF or per liter electrically isolated. Pulse weight can be set on the display. Alternatively, the pulse output can be used as an alarm relay.
Direct Current (DC) Supply Voltage N/A 18 to 36 V
Power Supply N/A 5 W
Burden N/A <500 Ω
Housing Material N/A Polycarbonate
Protection Rating N/A Ingress Protection (IP 65)
Material N/A Stainless Steel 1.4301
Mounting Position N/A Any
Low-Speed Air Flow (164 Feet Per Seconds (ft/s)) N/A
Standard Air Flow (304 Feet Per Seconds (ft/s)) N/A
Maximum Air Flow (607 Feet Per Seconds (ft/s)) N/A
High-Speed Air Flow (735 Feet Per Seconds (ft/s)) N/A
Note for Air Flow N/A
Low-Speed Argon (Ar) Flow (164 Feet Per Seconds (ft/s)) N/A
Standard Argon (Ar) Flow (304 Feet Per Seconds (ft/s)) N/A
Maximum Argon (Ar) Flow (607 Feet Per Seconds (ft/s)) N/A
High-Speed Argon (Ar) Flow (735 Feet Per Seconds (ft/s)) N/A
Note for Argon (Ar) Flow N/A
Low-Speed Carbon Dioxide (CO2) Flow (164 Feet Per Seconds (ft/s)) N/A
Standard Carbon Dioxide (CO2) Flow (304 Feet Per Seconds (ft/s)) N/A
Maximum Carbon Dioxide (CO2) Flow (607 Feet Per Seconds (ft/s)) N/A
High-Speed Carbon Dioxide (CO2) Flow (735 Feet Per Seconds (ft/s) N/A
Note for Carbon Dioxide (CO2) Flow N/A
Low-Speed Nitrogen (N2) Flow (164 Feet Per Seconds (ft/s)) N/A
Standard Nitrogen (N2) Flow (304 Feet Per Seconds (ft/s)) N/A
Maximum Nitrogen (N2) Flow (607 Feet Per Seconds (ft/s)) N/A
High-Speed Nitrogen (N2) Flow (735 Feet Per Seconds (ft/s)) N/A
Note for Nitrogen (N2) Flow N/A
Low-Speed Oxygen (O2) Flow (164 Feet Per Seconds (ft/s)) N/A
Standard Oxygen (O2) Flow (304 Feet Per Seconds (ft/s)) N/A
Maximum Oxygen (O2) Flow (607 Feet Per Seconds (ft/s)) N/A
High-Speed Oxygen (O2) Flow (735 Feet Per Seconds (ft/s)) N/A
Note for Oxygen (O2) Flow N/A
Low-Speed Nitrous Oxide (N2O) Flow (164 Feet Per Seconds (ft/s)) N/A
Standard Nitrous Oxide (N2O) Flow (304 Feet Per Seconds (ft/s)) N/A
Maximum Nitrous Oxide (N2O) Flow (607 Feet Per Seconds (ft/s)) N/A
High-Speed Nitrous Oxide (N2O) Flow (735 Feet Per Seconds (ft/s)) N/A
Note for Nitrous Oxide (N2O) Flow N/A
Low-Speed Natural Gas (NG) Flow (164 Feet Per Seconds (ft/s)) N/A
Standard Natural Gas (NG) Flow (304 Feet Per Seconds (ft/s)) N/A
Maximum Natural Gas (NG) Flow (607 Feet Per Seconds (ft/s)) N/A
High-Speed Natural Gas (NG) Flow (735 Feet Per Seconds (ft/s)) N/A
Note for Natural Gas (NG) Flow N/A
Measuring Section N/A
Flange Outer Pipe Diameter N/A
Flange Inner Pipe Diameter N/A
Dimension L (Flange) N/A
Note for Dimension L (Flange) N/A
Dimension L1 (Flange) N/A
Dimension H (Flange) N/A
Dimension H1 (Flange) N/A
Diameter D (Flange) N/A
Diameter K (Flange) N/A
Number of Diameter L (Flange) N/A
Diameter L (Flange) N/A
Connection Thread N/A
Thread Outer Pipe Diameter N/A
Thread Inner Pipe Diameter N/A
Dimension L (Thread) N/A
Note for Dimension L (Thread) N/A
Dimension L1 (Thread) N/A
Dimension H (Thread) N/A
Dimension H1 (Thread) N/A
Dimension A (Thread) N/A
Connection to Different Bus Systems Options N/A
With a Key Stroke N/A
Options N/A
Application-Technological Features N/A
Additional Information N/A