Compress Air Thermal Mass Flow Meter CS VA 525 Cs Instrument - Wiratama Mitra Abadi | Industrial Equipment



Compress Air Thermal Mass Flow Meter CS VA 525 Cs Instrument


CS Instrument Thermal Mass Flow Meter

Compress Air Thermal Mass Flow Meter CS VA 525 Cs Instrument

 In-Line Air Flowmeter Model VA 525

The newly developed VA 525 combines modern digital interfaces for connection to an energy monitoring system with a small, compact design. Due to its reasonable price and modern digital interfaces this compact in-line flow sensor is used when many machines (compressed air consumers) are to be integrated as easily as possible into an energy monitoring network.


  • Compact, small design - for use in machines, behind maintenance unit at the end-user
  • Optionally with classic analog signals(4...20 mA and pulse) or digital interfaces such as Modbus RTU, Ethernet (also PoE), M-Bus
  • All interfaces are programmable via the display
  • Current consumption in m³/h, l/min,...
  • Total consumption (meter reading) in m³, l, kg
  • Temperature measurement
  • Optional: pressure measurement
  • Easy installation in existing piping through integrated measuring block (suitable for 1/4 ̋, 1/2“, 3/4 ̋, 1“, 1 ¼ ̋, 1 ½“ or 2" lines)
  • Display values can be rotated 180° in the display, e. g. when installing overhead


Parametersm³/h, l/min (1000 mbar, 20 °C) in case of compressed air resp. Nm³/h, Nl/min (1013 mbar, 0°C) in case of gases
Units adjustable via keys at a displaym³/h, m³/min, l/min, l/s, ft/min, cfm, m/s, kg/h, kg/min, g/s, lb/min, lb/h
SensorThermal mass flow sensor
Meas mediumAir, gases
Gas types over CS Service Software or CS Datalogger adjustableAir, nitrogen, argon, CO2, oxygen
Accuracy (f. M. = from the measured value) (f. E. = from end value)
± 1,5 % of m. v. ± 0,3 % of f. s.
By request:
± 1 % of m. v. ± 0,3 % of f. s. or
± 6 % of m. v. ± 0,5 % of f. s.
Pressure measurement0...16 bar, accuracy: 1%
Operating temp.-30...80 °C
Operating pressureUp to 16 bar
Digital outputRS 485 interface (Modbus RTU), M-Bus (optional) Ethernet interface or PoE
Analog output4...20 mA for m³/h resp. l/min
Pulse output1 pulse per m³ or per liter galvanically isolated. Pulse value adjustable on the display. Alternatively, the pulse output can be used as an alarm relay.
Power supply18...36 VDC, 5 W
Burden< 500 Ω
HousingPolycarbonate (IP 65)
Meas. sectionAluminum
Mounting thread meas. section:G 1/4“ to G 2“ (BSP British Standart piping) resp. 1/2“ to 2“ NPT-thread
Mounting position:Any

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