Flow Controllers & Meters

model

Whisper™ MWB–Series: Portable Low Pressure Drop Mass Flow Meters

Whisper™ MWB-Series Portable Low Pressure Drop Mass Flow Meters measure mass and volumetric flow rates with pressure drops as low as 0.07 PSID (4.8 mbarD) for systems with little available pressure.

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Select configurations available to purchase online
  • Ranges: 0.5 SCCM to 500 SLPM
  • Display: Backlit monochrome
  • Communication: Micro USB-B
  • Fittings: NPT

Specs, features, and customization options

Specs

Devices are custom ranged from 0.5 SCCM full scale to 1,000 SLPM full scale.

Standard specs
  • Full scale ranges: 0.5 SCCM to 1,000 SLPM
  • Measurement range: 0.01% – 100% of full scale
  • Accuracy: ±0.75% of reading or ±0.1% of full scale, whichever is greater
  • Optional high-accuracy: ±0.6% of reading or ±0.1% of full scale, whichever is greater
  • Repeatability: 0.1% of reading and 0.02% of full scale
  • Response time: <10 ms
  • Operating temperature: –10°C to +60°C
  • Full scale operating pressure: 60 PSIA (4.1 barA)
  • Rechargeable battery lifetime: 18 hrs
Device features and accessories
Features
Accessories
  • Micro-USB to USB cable for power and serial communication
  • USB to global wall adapter converter
  • FlowVision software (download)
Build and performance options
  • Communication: Serial over micro-USB (default); Bluetooth with app (optional)
  • Process connections: NPT, SAE, AN, BSPP/G, compression, VCR, VCO
  • Displays: Backlit monochrome or color
  • Elastomers: FKM, FFKM, EPDM, Silicone
  • Calibration: Standard or high-accuracy; custom calibration points

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