• VA 520 Inline Flow Meters
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.
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Item #

Item Name

Parameters

Units Adjustable Via Keys at Display

Sensor

Measured Medium

Gas Types are Adjustable Over CS Service Software or CS Data Logger

Accuracy

Accuracy on Request

Operating Temperature

Operating Temperature with Pressure Sensor

Operating Pressure

Optional Pressure

Digital Output

Analog Output for Cubic Feet per Minute (CFM)

Pulse Output

Direct Current Voltage (VDC) Supply

Power Supply

Burden

Housing Material

Protection Rating

Measuring Section

Mounting Position

Low-Speed Air Flow (164 Feet (ft)/Sec (s))

Standard Air Flow (304 Feet (ft)/Sec (s))

Maximum Air Flow (607 Feet (ft)/Sec (s))

High-Speed Air Flow (735 Feet (ft)/Sec (s))

Note for Air Flow

Low-Speed Argon (Ar) Flow (164 Feet (ft)/Sec (s))

Standard Argon (Ar) Flow (304 Feet (ft)/Sec (s))

Maximum Argon (Ar) Flow (607 Feet (ft)/Sec (s))

High-Speed Argon (Ar) Flow (735 Feet (ft)/Sec (s))

Note for Argon (Ar) Flow

Low-Speed Carbon Dioxide (CO2) Flow (164 Feet (ft)/Sec (s))

Standard Carbon Dioxide (CO2) Flow (304 Feet (ft)/Sec (s))

Maximum Carbon Dioxide (CO2) Flow (607 Feet (ft)/Sec (s))

High-Speed Carbon Dioxide (CO2) Flow (735 Feet (ft)/Sec (s))

Note for Carbon Dioxide (CO2) Flow

Low-Speed Nitrogen (N2) Flow (164 Feet (ft)/Sec (s))

Standard Nitrogen (N2) Flow (304 Feet (ft)/Sec (s))

Maximum Nitrogen (N2) Flow (607 Feet (ft)/Sec (s))

High-Speed Nitrogen (N2) Flow (735 Feet (ft)/Sec (s))

Note for Nitrogen (N2) Flow

Low-Speed Oxygen (O2) Flow (164 Feet (ft)/Sec (s))

Standard Oxygen (O2) Flow (304 Feet (ft)/Sec (s))

Maximum Oxygen (O2) Flow (607 Feet (ft)/Sec (s))

High-Speed Oxygen (O2) Flow (735 Feet (ft)/Sec (s))

Note for Oxygen (O2) Flow

Low-Speed Nitrous Oxide (N2O) Flow (164 Feet (ft)/Sec (s))

Standard Nitrous Oxide (N2O) Flow (304 Feet (ft)/Sec (s))

Maximum Nitrous Oxide (N2O) Flow (607 Feet (ft)/Sec (s))

High-Speed Nitrous Oxide (N2O) Flow (735 Feet (ft)/Sec (s))

Note for Nitrous Oxide (N2O) Flow

Low-Speed Natural Gas (NG) Flow (164 Feet (ft)/Sec (s))

Standard Natural Gas (NG) Flow (304 Feet (ft)/Sec (s))

Maximum Natural Gas (NG) Flow (607 Feet (ft)/Sec (s))

High-Speed Natural Gas (NG) Flow (735 Feet (ft)/Sec (s))

Note for Natural Gas (NG) Flow

Flange Outer Pipe Diameter

Flange Inner Pipe Diameter

Dimension L (Flange)

Note for Dimension L (Flange)

Dimension L1 (Flange)

Dimension H (Flange)

Dimension H1 (Flange)

Diameter D (Flange)

Diameter K (Flange)

n x Diameter L (Flange)

Connection Thread

Thread Outer Pipe Diameter

Thread Inner Pipe Diameter

Dimension L (Thread)

Note for Dimension L (Thread)

Dimension L1 (Thread)

Dimension H (Thread)

Dimension H1 (Thread)

Dimension A (Thread)

Connection to different Bus systems Options

With a Key Stroke

Options

Application-Technological Features

Additional Information

Add To Cart/Request Quote
N/A VA 520 Flow Meter with R 1/4 Inch (in) Connection Thread and Stainless Steel 1.4404 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4404 N/A Any N/A 25 L/min0.9 cfm N/A 50 m³/h1.8 cfm N/A 105 m³/h3.6 cfm N/A 130 m³/h4.5 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 45 L/min1.5 cfm N/A 85 m³/h3 cfm N/A 170 m³/h6 cfm N/A 205 m³/h7.2 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min0.9 cfm N/A 50 m³/h1.8 cfm N/A 105 m³/h3.6 cfm N/A 130 m³/h4.5 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min0.9 cfm N/A 50 m³/h1.5 cfm N/A 100 m³/h3.3 cfm N/A 120 m³/h4.2 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min0.9 cfm N/A 50 m³/h1.8 cfm N/A 100 m³/h3.6 cfm N/A 125 m³/h4.2 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min0.9 cfm N/A 50 m³/h1.8 cfm N/A 105 m³/h3.6 cfm N/A 125 m³/h4.5 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 15 L/min0.6 cfm N/A 30 m³/h0.9 cfm N/A 60 m³/h2.1 cfm N/A 75 m³/h2.7 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A R 1/4 in. N/A 13.7 mm0.54 in N/A 8.9 mm0.35 in N/A 7.6 Inch194 mm N/A N/A 5.3 in137 mm N/A 6.8 in174.7 mm N/A 6.5 in165.7 mm N/A 0.5 in15 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 3/8 Inch (in) Connection Thread and Stainless Steel 1.4404 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4404 N/A Any N/A 225 nL/min8 cfm N/A 25 m³/h14.7 cfm N/A 50 m³/h29.4 cfm N/A 60 m³/h35.3 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 330 nL/min11.7 cfm N/A 35 m³/h20.5 cfm N/A 75 m³/h44.1 cfm N/A 95 m³/h55.9 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 225 nL/min7.9 cfm N/A 25 m³/h14.7 cfm N/A 50 m³/h29.4 cfm N/A 60 m³/h35.3 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 205 nL/min7.2 cfm N/A 20 m³/h11.7 cfm N/A 45 m³/h26.4 cfm N/A 55 m³/h32.3 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 215 nL/min7.5 cfm N/A 20 m³/h11.7 cfm N/A 45 m³/h26.4 cfm N/A 55 m³/h32.3 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 220 nL/min7.7 cfm N/A 20 m³/h11.7 cfm N/A 45 m³/h26.4 cfm N/A 60 m³/h35.3 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 130 nL/min4.5 cfm N/A 14 m³/h8.8 cfm N/A 25 m³/h14.7 cfm N/A 35 m³/h20.5 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A R 3/8 in. N/A 17.2 mm0.68 in N/A 12.5 mm0.49 in N/A 11.8 Inch300 mm N/A N/A 7.9 in200 mm N/A 6.9 in175 mm N/A 6.5 in165.7 mm N/A 0.5 in15 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 1/2 Inch (in) Connection Thread and Stainless Steel 1.4404 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4404 1/2 in N/A Any N/A 20 L/min14 cfm N/A 45 m³/h25 cfm N/A 90 m³/h50 cfm N/A 110 m³/h60 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 35 L/min20 cfm N/A 70 m³/h40 cfm N/A 140 m³/h80 cfm N/A 170 m³/h100 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 20 L/min14 cfm N/A 45 m³/h25 cfm N/A 90 m³/h50 cfm N/A 105 m³/h60 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 20 L/min13 cfm N/A 40 m³/h25 cfm N/A 80 m³/h45 cfm N/A 100 m³/h55 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 20 L/min13 cfm N/A 40 m³/h25 cfm N/A 85 m³/h50 cfm N/A 105 m³/h60 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 20 L/min14 cfm N/A 40 m³/h25 cfm N/A 85 m³/h50 cfm N/A 105 m³/h60 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 14.4 L/min8 cfm N/A 25 m³/h15 cfm N/A 50 m³/h30 cfm N/A 65 m³/h35 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 21.3 mm0.84 in N/A 16.1 mm0.63 in N/A 11.8 in N/A N/A 8.27 in N/A 8.3 in N/A 6.5 in N/A 95 mm N/A 65 mm N/A 4 x 14 N/A R 1/2 in. N/A 21.3 mm0.84 in N/A 16.1 mm0.63 in N/A 11.8 Inch300 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 8.2 in210 mm N/A 6.9 in176.4 mm N/A 6.5 in165.7 mm N/A 0.7 in20 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 3/4 Inch (in) Connection Thread and Stainless Steel 1.4404 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4404 3/4 in N/A Any N/A 45 L/min25 cfm N/A 85 m³/h50 cfm N/A 175 m³/h100 cfm N/A 215 m³/h125 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 75 L/min40 cfm N/A 135 m³/h80 cfm N/A 275 m³/h160 cfm N/A 335 m³/h195 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 45 L/min25 cfm N/A 85 m³/h50 cfm N/A 175 m³/h100 cfm N/A 210 m³/h125 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 70 L/min40 cfm N/A 80 m³/h45 cfm N/A 160 m³/h95 cfm N/A 195 m³/h115 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 45 L/min25 cfm N/A 80 m³/h45 cfm N/A 165 m³/h95 cfm N/A 205 m³/h120 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 45 L/min25 cfm N/A 85 m³/h50 cfm N/A 170 m³/h100 cfm N/A 210 m³/h120 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min15 cfm N/A 50 m³/h30 cfm N/A 105 m³/h60 cfm N/A 125 m³/h70 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 26.9 mm1.06 in N/A 21.7 mm0.85 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 8.5 in N/A 6.5 in N/A 105 mm N/A 75 mm N/A 4 x 14 N/A R 3/4 in. N/A 26.9 mm1.06 in N/A 21.7 mm0.85 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.0 in179.2 mm N/A 6.5 in165.7 mm N/A 0.7 in20 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 1 Inch (in) Connection Thread and Stainless Steel 1.4404 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4404 1 in N/A Any N/A 75 L/min45 cfm N/A 145 m³/h85 cfm N/A 290 m³/h170 cfm N/A 355 m³/h210 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 120 L/min70 cfm N/A 230 m³/h135 cfm N/A 460 m³/h270 cfm N/A 555 m³/h325 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 75 L/min45 cfm N/A 145 m³/h85 cfm N/A 290 m³/h170 cfm N/A 350 m³/h205 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 130 L/min75 cfm N/A 135 m³/h75 cfm N/A 270 m³/h155 cfm N/A 325 m³/h190 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 75 L/min40 cfm N/A 140 m³/h80 cfm N/A 280 m³/h165 cfm N/A 340 m³/h200 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 75 L/min45 cfm N/A 140 m³/h85 cfm N/A 285 m³/h170 cfm N/A 345 m³/h205 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 45 L/min25 cfm N/A 85 m³/h50 cfm N/A 170 m³/h100 cfm N/A 210 m³/h120 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 33.7 mm1.34 in N/A 27.3 mm1.07 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 8.7 in N/A 6.5 in N/A 115 mm N/A 85 mm N/A 4 x 14 N/A R 1 in. N/A 33.7 mm1.34 in N/A 27.3 mm1.07 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.1 in182.6 mm N/A 6.5 in165.7 mm N/A 0.9 in25 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 1-1/4 Inch (in) Connection Thread and Stainless Steel 1.4404 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4404 1-1/4 in N/A Any N/A 140 L/min80 cfm N/A 265 m³/h155 cfm N/A 530 m³/h310 cfm N/A 640 m³/h375 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 220 L/min130 cfm N/A 415 m³/h245 cfm N/A 830 m³/h485 cfm N/A 1005 m³/h590 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 140 L/min80 cfm N/A 260 m³/h155 cfm N/A 525 m³/h305 cfm N/A 635 m³/h370 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 180 L/min105 cfm N/A 240 m³/h140 cfm N/A 485 m³/h285 cfm N/A 590 m³/h345 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 135 L/min80 cfm N/A 250 m³/h145 cfm N/A 505 m³/h295 cfm N/A 610 m³/h360 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 140 L/min80 cfm N/A 260 m³/h150 cfm N/A 520 m³/h305 cfm N/A 630 m³/h370 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 85 L/min50 cfm N/A 155 m³/h90 cfm N/A 310 m³/h185 cfm N/A 380 m³/h220 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 42.4 mm1.67 in N/A 36 mm1.41 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 9.2 in N/A 6.5 in N/A 140 mm N/A 100 mm N/A 4 x 18 N/A R 1-1/4 in. N/A 42.4 mm1.67 in N/A 36.0 mm1.41 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.3 in186.9 mm N/A 6.5 in165.7 mm N/A 0.9 in25 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 1-1/2 Inch (in) Connection Thread and Stainless Steel 1.4404 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4404 1-1/2 in N/A Any N/A 195 L/min115 cfm N/A 365 m³/h215 cfm N/A 730 m³/h430 cfm N/A 885 m³/h520 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 305 L/min180 cfm N/A 570 m³/h335 cfm N/A 1140 m³/h670 cfm N/A 1385 m³/h815 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 195 L/min115 cfm N/A 360 m³/h210 cfm N/A 720 m³/h425 cfm N/A 875 m³/h515 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 295 L/min175 cfm N/A 335 m³/h195 cfm N/A 670 m³/h395 cfm N/A 815 m³/h475 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 185 L/min110 cfm N/A 345 m³/h205 cfm N/A 695 m³/h410 cfm N/A 845 m³/h495 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 190 L/min110 cfm N/A 355 m³/h210 cfm N/A 715 m³/h420 cfm N/A 865 m³/h510 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 115 L/min65 cfm N/A 215 m³/h125 cfm N/A 430 m³/h250 cfm N/A 520 m³/h305 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 48.3 mm1.9 in N/A 41.9 mm1.65 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 9.4 in N/A 6.5 in N/A 150 mm N/A 110 mm N/A 4 x 18 N/A R 1-1/2 in. N/A 48.3 mm1.90 in N/A 41.9 mm1.65 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.3 in186.9 mm N/A 6.5 in165.7 mm N/A 0.9 in25 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 2 Inch (in) Connection Thread and Stainless Steel 1.4404 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4404 2 in N/A Any N/A 320 L/min190 cfm N/A 600 m³/h350 cfm N/A 1195 m³/h700 cfm N/A 1450 m³/h850 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 505 L/min295 cfm N/A 935 m³/h550 cfm N/A 1870 m³/h1100 cfm N/A 2265 m³/h1330 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 320 L/min185 cfm N/A 590 m³/h345 cfm N/A 1185 m³/h695 cfm N/A 1430 m³/h840 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 505 L/min300 cfm N/A 550 m³/h320 cfm N/A 1100 m³/h645 cfm N/A 1330 m³/h780 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 305 L/min180 cfm N/A 570 m³/h335 cfm N/A 1140 m³/h670 cfm N/A 1380 m³/h810 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 315 L/min185 cfm N/A 585 m³/h345 cfm N/A 1170 m³/h690 cfm N/A 1420 m³/h835 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 190 L/min110 cfm N/A 355 m³/h205 cfm N/A 705 m³/h415 cfm N/A 855 m³/h500 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 60.3 mm2.37 in N/A 53.1 mm2.09 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 9.7 in N/A 6.5 in N/A 165 mm N/A 125 mm N/A 4 x 18 N/A R 2 in. N/A 60.3 mm2.37 in N/A 53.1 mm2.09 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.7 in195.9 mm N/A 6.5 in165.7 mm N/A 1.1 in30 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 1/4 Inch (in) Connection Thread and Stainless Steel 1.4301 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4301 N/A Any N/A 25 L/min0.9 cfm N/A 50 m³/h1.8 cfm N/A 105 m³/h3.6 cfm N/A 130 m³/h4.5 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 45 L/min1.5 cfm N/A 85 m³/h3 cfm N/A 170 m³/h6 cfm N/A 205 m³/h7.2 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min0.9 cfm N/A 50 m³/h1.8 cfm N/A 105 m³/h3.6 cfm N/A 130 m³/h4.5 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min0.9 cfm N/A 50 m³/h1.5 cfm N/A 100 m³/h3.3 cfm N/A 120 m³/h4.2 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min0.9 cfm N/A 50 m³/h1.8 cfm N/A 100 m³/h3.6 cfm N/A 125 m³/h4.2 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min0.9 cfm N/A 50 m³/h1.8 cfm N/A 105 m³/h3.6 cfm N/A 125 m³/h4.5 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 15 L/min0.6 cfm N/A 30 m³/h0.9 cfm N/A 60 m³/h2.1 cfm N/A 75 m³/h2.7 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A R 1/4 in. N/A 13.7 mm0.54 in N/A 8.9 mm0.35 in N/A 7.6 Inch194 mm N/A N/A 5.3 in137 mm N/A 6.8 in174.7 mm N/A 6.5 in165.7 mm N/A 0.5 in15 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 3/8 Inch (in) Connection Thread and Stainless Steel 1.4301 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4301 N/A Any N/A 225 nL/min8 cfm N/A 25 m³/h14.7 cfm N/A 50 m³/h29.4 cfm N/A 60 m³/h35.3 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 330 nL/min11.7 cfm N/A 35 m³/h20.5 cfm N/A 75 m³/h44.1 cfm N/A 95 m³/h55.9 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 225 nL/min7.9 cfm N/A 25 m³/h14.7 cfm N/A 50 m³/h29.4 cfm N/A 60 m³/h35.3 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 205 nL/min7.2 cfm N/A 20 m³/h11.7 cfm N/A 45 m³/h26.4 cfm N/A 55 m³/h32.3 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 215 nL/min7.5 cfm N/A 20 m³/h11.7 cfm N/A 45 m³/h26.4 cfm N/A 55 m³/h32.3 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 220 nL/min7.7 cfm N/A 20 m³/h11.7 cfm N/A 45 m³/h26.4 cfm N/A 60 m³/h35.3 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 130 nL/min4.5 cfm N/A 14 m³/h8.8 cfm N/A 25 m³/h14.7 cfm N/A 35 m³/h20.5 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A R 3/8 in. N/A 17.2 mm0.68 in N/A 12.5 mm0.49 in N/A 11.8 Inch300 mm N/A N/A 7.9 in200 mm N/A 6.9 in175 mm N/A 6.5 in165.7 mm N/A 0.5 in15 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 1/2 Inch (in) Connection Thread and Stainless Steel 1.4301 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4301 1/2 in N/A Any N/A 20 L/min14 cfm N/A 45 m³/h25 cfm N/A 90 m³/h50 cfm N/A 110 m³/h60 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 35 L/min20 cfm N/A 70 m³/h40 cfm N/A 140 m³/h80 cfm N/A 170 m³/h100 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 20 L/min14 cfm N/A 45 m³/h25 cfm N/A 90 m³/h50 cfm N/A 105 m³/h60 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 20 L/min13 cfm N/A 40 m³/h25 cfm N/A 80 m³/h45 cfm N/A 100 m³/h55 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 20 L/min13 cfm N/A 40 m³/h25 cfm N/A 85 m³/h50 cfm N/A 105 m³/h60 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 20 L/min14 cfm N/A 40 m³/h25 cfm N/A 85 m³/h50 cfm N/A 105 m³/h60 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 14.4 L/min8 cfm N/A 25 m³/h15 cfm N/A 50 m³/h30 cfm N/A 65 m³/h35 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 21.3 mm0.84 in N/A 16.1 mm0.63 in N/A 11.8 in N/A N/A 8.27 in N/A 8.3 in N/A 6.5 in N/A 95 mm N/A 65 mm N/A 4 x 14 N/A R 1/2 in. N/A 21.3 mm0.84 in N/A 16.1 mm0.63 in N/A 11.8 Inch300 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 8.2 in210 mm N/A 6.9 in176.4 mm N/A 6.5 in165.7 mm N/A 0.7 in20 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 3/4 Inch (in) Connection Thread and Stainless Steel 1.4301 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4301 3/4 in N/A Any N/A 45 L/min25 cfm N/A 85 m³/h50 cfm N/A 175 m³/h100 cfm N/A 215 m³/h125 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 75 L/min40 cfm N/A 135 m³/h80 cfm N/A 275 m³/h160 cfm N/A 335 m³/h195 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 45 L/min25 cfm N/A 85 m³/h50 cfm N/A 175 m³/h100 cfm N/A 210 m³/h125 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 70 L/min40 cfm N/A 80 m³/h45 cfm N/A 160 m³/h95 cfm N/A 195 m³/h115 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 45 L/min25 cfm N/A 80 m³/h45 cfm N/A 165 m³/h95 cfm N/A 205 m³/h120 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 45 L/min25 cfm N/A 85 m³/h50 cfm N/A 170 m³/h100 cfm N/A 210 m³/h120 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 25 L/min15 cfm N/A 50 m³/h30 cfm N/A 105 m³/h60 cfm N/A 125 m³/h70 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 26.9 mm1.06 in N/A 21.7 mm0.85 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 8.5 in N/A 6.5 in N/A 105 mm N/A 75 mm N/A 4 x 14 N/A R 3/4 in. N/A 26.9 mm1.06 in N/A 21.7 mm0.85 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.0 in179.2 mm N/A 6.5 in165.7 mm N/A 0.7 in20 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 1 Inch (in) Connection Thread and Stainless Steel 1.4301 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4301 1 in N/A Any N/A 75 L/min45 cfm N/A 145 m³/h85 cfm N/A 290 m³/h170 cfm N/A 355 m³/h210 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 120 L/min70 cfm N/A 230 m³/h135 cfm N/A 460 m³/h270 cfm N/A 555 m³/h325 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 75 L/min45 cfm N/A 145 m³/h85 cfm N/A 290 m³/h170 cfm N/A 350 m³/h205 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 130 L/min75 cfm N/A 135 m³/h75 cfm N/A 270 m³/h155 cfm N/A 325 m³/h190 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 75 L/min40 cfm N/A 140 m³/h80 cfm N/A 280 m³/h165 cfm N/A 340 m³/h200 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 75 L/min45 cfm N/A 140 m³/h85 cfm N/A 285 m³/h170 cfm N/A 345 m³/h205 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 45 L/min25 cfm N/A 85 m³/h50 cfm N/A 170 m³/h100 cfm N/A 210 m³/h120 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 33.7 mm1.34 in N/A 27.3 mm1.07 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 8.7 in N/A 6.5 in N/A 115 mm N/A 85 mm N/A 4 x 14 N/A R 1 in. N/A 33.7 mm1.34 in N/A 27.3 mm1.07 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.1 in182.6 mm N/A 6.5 in165.7 mm N/A 0.9 in25 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 1-1/4 Inch (in) Connection Thread and Stainless Steel 1.4301 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4301 1-1/4 in N/A Any N/A 140 L/min80 cfm N/A 265 m³/h155 cfm N/A 530 m³/h310 cfm N/A 640 m³/h375 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 220 L/min130 cfm N/A 415 m³/h245 cfm N/A 830 m³/h485 cfm N/A 1005 m³/h590 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 140 L/min80 cfm N/A 260 m³/h155 cfm N/A 525 m³/h305 cfm N/A 635 m³/h370 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 180 L/min105 cfm N/A 240 m³/h140 cfm N/A 485 m³/h285 cfm N/A 590 m³/h345 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 135 L/min80 cfm N/A 250 m³/h145 cfm N/A 505 m³/h295 cfm N/A 610 m³/h360 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 140 L/min80 cfm N/A 260 m³/h150 cfm N/A 520 m³/h305 cfm N/A 630 m³/h370 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 85 L/min50 cfm N/A 155 m³/h90 cfm N/A 310 m³/h185 cfm N/A 380 m³/h220 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 42.4 mm1.67 in N/A 36 mm1.41 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 9.2 in N/A 6.5 in N/A 140 mm N/A 100 mm N/A 4 x 18 N/A R 1-1/4 in. N/A 42.4 mm1.67 in N/A 36.0 mm1.41 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.3 in186.9 mm N/A 6.5 in165.7 mm N/A 0.9 in25 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
Request Quote
N/A VA 520 Flow Meter with R 1-1/2 Inch (in) Connection Thread and Stainless Steel 1.4301 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4301 1-1/2 in N/A Any N/A 195 L/min115 cfm N/A 365 m³/h215 cfm N/A 730 m³/h430 cfm N/A 885 m³/h520 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 305 L/min180 cfm N/A 570 m³/h335 cfm N/A 1140 m³/h670 cfm N/A 1385 m³/h815 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 195 L/min115 cfm N/A 360 m³/h210 cfm N/A 720 m³/h425 cfm N/A 875 m³/h515 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 295 L/min175 cfm N/A 335 m³/h195 cfm N/A 670 m³/h395 cfm N/A 815 m³/h475 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 185 L/min110 cfm N/A 345 m³/h205 cfm N/A 695 m³/h410 cfm N/A 845 m³/h495 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 190 L/min110 cfm N/A 355 m³/h210 cfm N/A 715 m³/h420 cfm N/A 865 m³/h510 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 115 L/min65 cfm N/A 215 m³/h125 cfm N/A 430 m³/h250 cfm N/A 520 m³/h305 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 48.3 mm1.9 in N/A 41.9 mm1.65 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 9.4 in N/A 6.5 in N/A 150 mm N/A 110 mm N/A 4 x 18 N/A R 1-1/2 in. N/A 48.3 mm1.90 in N/A 41.9 mm1.65 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.3 in186.9 mm N/A 6.5 in165.7 mm N/A 0.9 in25 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
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N/A VA 520 Flow Meter with R 2 Inch (in) Connection Thread and Stainless Steel 1.4301 Measuring Section N/A m³/h, CFM (1000 mbar, 20 ºC) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0ºC) In Case of Gases N/A CFM ft/min g/s kg/h kg/min L/s lb/h lb/min m/s m³/h m³/min N/A Thermal Mass Flow Sensor N/A Air Gases N/A Air Argon CO2 Nitrogen Oxygen N/A ± 1.5% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) N/A ± 0.3% of Full Scale (F.S.) ± 1% of Measured Value (M.V.) N/A -22 to 176 ºF N/A -25 to 349 ºF N/A -1 to 232 psi N/A Up to Nominal Pressure (PN) 40 N/A (Modbus-RTU), Optional: Ethernet interface PoE) M-Bus RS 485 Interface N/A 4 to 20 mA N/A 1 pulse per CF or per litre electrically isolated. Pulse weight can be set on the display.
Alternatively, the pulse output can be used as an alarm relay 		N/A 18 to 36 V N/A 5 W N/A < 500 Ω N/A Polycarbonate N/A Ingress Protection (IP 65) N/A Stainless Steel 1.4301 2 in N/A Any N/A 320 L/min190 cfm N/A 600 m³/h350 cfm N/A 1195 m³/h700 cfm N/A 1450 m³/h850 cfm N/A Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi N/A 505 L/min295 cfm N/A 935 m³/h550 cfm N/A 1870 m³/h1100 cfm N/A 2265 m³/h1330 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 320 L/min185 cfm N/A 590 m³/h345 cfm N/A 1185 m³/h695 cfm N/A 1430 m³/h840 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 505 L/min300 cfm N/A 550 m³/h320 cfm N/A 1100 m³/h645 cfm N/A 1330 m³/h780 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 305 L/min180 cfm N/A 570 m³/h335 cfm N/A 1140 m³/h670 cfm N/A 1380 m³/h810 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 315 L/min185 cfm N/A 585 m³/h345 cfm N/A 1170 m³/h690 cfm N/A 1420 m³/h835 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 190 L/min110 cfm N/A 355 m³/h205 cfm N/A 705 m³/h415 cfm N/A 855 m³/h500 cfm N/A Setting to DIN 1343: 32 ºF, 14.7 psi N/A 60.3 mm2.37 in N/A 53.1 mm2.09 in N/A 18.7 in N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site. N/A 10.83 in N/A 9.7 in N/A 6.5 in N/A 165 mm N/A 125 mm N/A 4 x 18 N/A R 2 in. N/A 60.3 mm2.37 in N/A 53.1 mm2.09 in N/A 18.7 Inch475 mm N/A Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! N/A 10.8 in275 mm N/A 7.7 in195.9 mm N/A 6.5 in165.7 mm N/A 1.1 in30 mm N/A There are different options available for connection to modern Bus systems:
  • Ethernet interface (Modbus-TCP) / PoE
  • M-BUS
  • Modbus-RTU
 		N/A
  • Reset counter reading
  • Select units
  • Zero-point adjustment, leak flow volume suppression
 		N/A Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.
A meter reading is available for each flow direction. 		N/A
  • Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy management
  • Systems, building management systems, PLC
  • Easy and affordable installation
  • Units freely selectable via keys on the display CF, lbs, CFM
  • Compressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypad
  • Analog output 4 to 20 mA, pulse output (electrically isolated)
  • High measuring accuracy even in the lower measuring range (ideal for leakage measurement)
  • Negligibly small loss of pressure
  • Calorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved parts
  • Comprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./min
  • values ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus
 		N/A Modbus-RTU output
4 to 20 mA output for present flow

Pulse output for total flow (counter reading), galvanically isolated or M-Bus (optionally)

NEW: Integrated pressure sensor (optional)

Measuring unit can be unscrewed: Removal of the entire measuring section not necessary, no by-pass necessary

Easy installation into the existing pipeline due to integrated measuring section and weld neck flange (according to EN 1092-1 PN 40)

High measuring accuracy due to defined measuring section (inlet and outlet section)

Display head rotatable by 180º e.g. in case of reverse flow direction

The sensor can be removed and cleaned. 		Add To Cart
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