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OVERVIEW
Thermal mass flow 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 analyse 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
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SPECIFICATIONS
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 gasesUnits adjustable via keys at
displaym³/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 loggerAir, 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.sOperating temperature -30…110 °C sensor tube
-20…85 °C with pressure sensor
-20…+70 °C housingOperating 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 alarmSupply 18…36 VDC, 5 W Burden < 500 Ω Housing Polycarbonate (IP 65) Sensor tube Stainless steel, 1.4301
Installation length 220 mm, Ø 10 mmMounting thread G 1/2″, 1/2″ NPT male thread Ø housing 65mm Mounting position any
CS Instruments VA 500 – Flow meter for compressed air & gases
$0.00 ex GST
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.
