Sierra RedyCompact Mass Flow Meter


Sierra RedyCompact Mass Flow Meter is for those that want the highest accuracy and repeatability and need a drop-in replacement for a Rotameter.

Battery-powered, with a large touch-screen, RedyCompact is easy to read from a distance. Regulate the flow rate with the high-resolution valve by dialing in your manual setpoint. Two standard AA batteries give the meter months of operation. An optional Micro-USB power plug is also available. utilizing an advanced, ultra-stable no-drift CMOS (Complementary Metal Oxide Semiconductor) sensor.

The use of MEMS techniques allows both electronic circuits and mechanical devices to be manufactured on a silicon chip, similar to the process used for integrated circuits.


  • Burner control (furnace construction)
  • Welding (welding gas monitoring)
  • Leak measurements (quality, environment)
  • Coating (equipment construction)
  • Regulation of gaseous atmospheres (biotechnology)
  • Measurement of gas consumption (hospitals)
  • Test equipment (production maintenance)
  • Flow rate monitoring (laboratories)
  • Cutting (steel sheets)
  • Billing
  • Analytical equipment
  • Aeration/sparging (food products, ice cream / edible oils)
  • Blanketing (food)
  • Fermentation (food, biotechnology, pharma)


  • Air, O2*, N2*, He, Ar, CO2, H2, CH4, C3H8 (other gases and gas mixtures on request)
  • Accuracy of  ± 2.0% of full scale; ranges > 200 SLPM ± 3.0% of full scale
  • High Accuracy  ± 1.0% of full scale up to 50 SLPM
  • Repeatability ± 0.5% of the full scale
  • Flow ranges from 0 to 500 pm (nlpm)
  • Pressure  3 – 160 psia (0.2 – 11 bara)
  • Gas/ambient temperature 32 – 122°F (0 – 50°C)
  • Max. 300 msec (depending on filter settings)
  •  External power +8…30 Vdc (power consumption max. 300mA) or Micro-USB power supply (DIN 62684) Operation
  • FKM, optional EPDM (FDA) Pressure
  • stainless steel or aluminum construction
  • CE approved

Download Datasheet: Sierra RedyCompact Mass Flow Meters


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