| Shipping | Tax | Terms Shopping Cart 0 Items Request for Quote 0 Items All Categories > Flow Thermal > VA 520 Inline Flowmeters > Item # 0695 1521 Download PDF Download PDF Printable Page Email This Page Save To Favorites Please wait… Item # 0695 1521, VA 520 Stainless Steel 1.4404 Flowmeter with R 1/2 Inch (in) Connection Thread Web Price QUOTE Display shows 2 values at the same time:Present flow in m³/h, CFMTotal consumption (counter reading) in CFTemperature measurementReadout values in the display can be rotated by 180º, e.g. for overhead installation. larger image larger image Financing · Specifications · Measuring Range · Flange · Flange DIN EN 1092-1 · Thread · Connection to Different Bus Systems Options · With a Key Stroke · Options · Application-Technological Features · Additional Information Financing Approve Payments Finance with Approve Payments Specifications Parameters 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 CFM ft/min g/s kg/h kg/min l/s lb/h lb/min m/s m³/h m³/min Sensor Thermal Mass Flow Sensor Measured Medium Air Gases Gas Types are Adjustable Over CS Service Software or CS Data Logger Air Argon CO2 Nitrogen Oxygen Accuracy ± 0.3% of Full Scale (F.S.) ± 1.5% of Measured Value (M.V.) Accuracy on Request ± 1.0% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) Operating Temperature -22 to 176 ºF Operating Temperature with Pressure Sensor -25 to 349 ºF Operating Pressure -1 to 232 psi Optional Pressure Up to Nominal Pressure (PN) 40 Digital Output M-Bus Modbus-Remote Terminal Unit (RTU) Optional: Ethernet Interface (PoE) RS 485 Interface Analog Output for Cubic Feet Per Minute (CFM) 4 to 20 mA Pulse Output 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 18 to 36 V Power Supply 5 W Burden <500 Ω Housing Material Polycarbonate Protection Rating Ingress Protection (IP 65) Material Stainless Steel 1.4404 Mounting Position Any Dimension L (Thread) 300 mm11.8 in Measuring Range Low-Speed Air Flow (164 Feet Per Seconds (ft/s)) 20 L/min14 ft³/min Standard Air Flow (304 Feet Per Seconds (ft/s)) 45 m³/h25 ft³/min Maximum Air Flow (607 Feet Per Seconds (ft/s)) 90 m³/h50 ft³/min High-Speed Air Flow (735 Feet Per Seconds (ft/s)) 110 m³/h60 ft³/min Note for Air Flow Reference conditions DIN 1945 / ISO 1217: 68 ºF, 14 psi Low-Speed Argon (Ar) Flow (164 Feet Per Seconds (ft/s)) 35 L/min20 ft³/min Standard Argon (Ar) Flow (304 Feet Per Seconds (ft/s)) 70 m³/h40 ft³/min Maximum Argon (Ar) Flow (607 Feet Per Seconds (ft/s)) 140 m³/h80 ft³/min High-Speed Argon (Ar) Flow (735 Feet Per Seconds (ft/s)) 170 m³/h100 ft³/min Note for Argon (Ar) Flow Setting to DIN 1343: 32 ºF, 14.7 psi Low-Speed Carbon Dioxide (CO2) Flow (164 Feet Per Seconds (ft/s)) 20 L/min14 ft³/min Standard Carbon Dioxide (CO2) Flow (304 Feet Per Seconds (ft/s)) 45 m³/h25 ft³/min Maximum Carbon Dioxide (CO2) Flow (607 Feet Per Seconds (ft/s)) 90 m³/h50 ft³/min High-Speed Carbon Dioxide (CO2) Flow (735 Feet Per Seconds (ft/s) 105 m³/h60 ft³/min Note for Carbon Dioxide (CO2) Flow Setting to DIN 1343: 32 ºF, 14.7 psi Low-Speed Nitrogen (N2) Flow (164 Feet Per Seconds (ft/s)) 20 L/min13 ft³/min Standard Nitrogen (N2) Flow (304 Feet Per Seconds (ft/s)) 40 m³/h25 ft³/min Maximum Nitrogen (N2) Flow (607 Feet Per Seconds (ft/s)) 80 m³/h45 ft³/min High-Speed Nitrogen (N2) Flow (735 Feet Per Seconds (ft/s)) 100 m³/h55 ft³/min Note for Nitrogen (N2) Flow Setting to DIN 1343: 32 ºF, 14.7 psi Low-Speed Oxygen (O2) Flow (164 Feet Per Seconds (ft/s)) 20 L/min13 ft³/min Standard Oxygen (O2) Flow (304 Feet Per Seconds (ft/s)) 40 m³/h25 ft³/min Maximum Oxygen (O2) Flow (607 Feet Per Seconds (ft/s)) 85 m³/h50 ft³/min High-Speed Oxygen (O2) Flow (735 Feet Per Seconds (ft/s)) 105 m³/h60 ft³/min Note for Oxygen (O2) Flow Setting to DIN 1343: 32 ºF, 14.7 psi Low-Speed Nitrous Oxide (N2O) Flow (164 Feet Per Seconds (ft/s)) 20 L/min14 ft³/min Standard Nitrous Oxide (N2O) Flow (304 Feet Per Seconds (ft/s)) 40 m³/h25 ft³/min Maximum Nitrous Oxide (N2O) Flow (607 Feet Per Seconds (ft/s)) 85 m³/h50 ft³/min High-Speed Nitrous Oxide (N2O) Flow (735 Feet Per Seconds (ft/s)) 105 m³/h60 ft³/min Note for Nitrous Oxide (N2O) Flow Setting to DIN 1343: 32 ºF, 14.7 psi Low-Speed Natural Gas (NG) Flow (164 Feet Per Seconds (ft/s)) 14.4 L/min8 ft³/min Standard Natural Gas (NG) Flow (304 Feet Per Seconds (ft/s)) 25 m³/h15 ft³/min Maximum Natural Gas (NG) Flow (607 Feet Per Seconds (ft/s)) 50 m³/h30 ft³/min High-Speed Natural Gas (NG) Flow (735 Feet Per Seconds (ft/s)) 65 m³/h35 ft³/min Note for Natural Gas (NG) Flow Setting to DIN 1343: 32 ºF, 14.7 psi Flange Measuring Section 1/2 in Flange Outer Pipe Diameter 21.3 mm0.84 in Flange Inner Pipe Diameter 16.1 mm0.63 in Dimension L (Flange) 11.8 in Dimension L1 (Flange) 8.27 in Dimension H (Flange) 8.3 in Dimension H1 (Flange) 6.5 in Flange DIN EN 1092-1 Diameter D (Flange) 95 mm Diameter K (Flange) 65 mm Number of Diameter L (Flange) 4 Diameter L (Flange) 14 mm Thread Connection Thread R 1/2 in. Thread Outer Pipe Diameter 21.3 mm0.84 in Thread Inner Pipe Diameter 16.1 mm0.63 in Note for Dimension L (Thread) Attention: Shortened inlet section. Please observe the recommended minimum inlet section (length = 15 x inner diameter) on site! Dimension L1 (Thread) 8.2 in210 mm Dimension H (Thread) 6.9 in176.4 mm Dimension H1 (Thread) 6.5 in165.7 mm Dimension A (Thread) 0.7 in20 mm Connection to Different Bus Systems Options There are different options available for connection to modern Bus systems:Ethernet interface (Modbus-TCP) / PoEM-BUSModbus-RTUEthernet Modbus TCPM12 Ethernet port, x-coded With a Key Stroke Reset counter readingSelect unitsZero-point adjustment, leak flow volume suppression Options Bi-directional measurement. Blue or green arrows in the display indicate the direction of flow.A meter reading is available for each flow direction. Application-Technological Features Digital interfaces such as Modbus-RTU, Ethernet (PoE) and M-Bus enable connection to higher-level systems such as energy managementSystems, building management systems, PLCEasy and affordable installationUnits freely selectable via keys on the display CF, lbs, CFMCompressed air counter up to 1,999,999,999 m³ can be reset to Inch (in)zero Inch (in) via keypadAnalog 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 pressureCalorimetric measuring principle, no additional pressure and temperature measurement necessary, no mechanically moved partsComprehensive diagnostic functions can be read out on the display or remote access via Modbus-RTU such as exceeding max./minvalues ºF, calibration cycle, error codes, serial number. All parameters can be read out and changed via Modbus Additional Information Modbus-RTU output4 to 20 mA output for present flowPulse 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 necessaryEasy 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 directionThe sensor can be removed and cleaned. MORE IMAGES · VA 520 Inline Flowmeters - 3 · VA 520 Inline Flowmeters - 4 DOWNLOADS Datasheet for VA 520 Inline Flowmeters (PDF, 971KB) Maintain Your Air Compressor Learn more about maintaining your air compressor by downloading our eBook on air compressor maintenance. Download eBook