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Whisper™ MW–Series: Low Pressure Drop Mass Flow Meters

Classification:
Product name:
Whisper™ MW–Series: Low Pressure Drop Mass Flow Meters

Order number:
Please refer to the Alicat Scientific website for configuration options

Shortdescription:
Whisper™ MW–Series Low Pressure Drop Mass Flow Meters measure mass and volumetric flow rates when there is little available system pressure, with pressure drops as low as 0.07 PSID (4.8 mbarD).

Product types:
Flow

Technology & Profiles:
PROFIBUS, PROFINET

Certification number:
PROFINET Z13554

Company:
Alicat Scientific
Alicat Scientific

7641 N. Business Park Drive
85743 Tucson, AZ
United States

David Davis
Tel 520 290-6060

ddavis(at)alicat(dot)com

Illustration:
Whisper™ MW–Series: Low Pressure Drop Mass Flow Meters
Product description:

Whisper devices are built for processes with little available inlet pressure or a large amount of back pressure. These devices have a larger flow body and uniquely arranged laminar flow elements, resulting in pressure drops up to 10x lower than standard devices. Whisper instruments also utilize a much more sensitive pressure sensor package to take full advantage of the lower pressure readings.

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: 127 ms
  • Operating temperature: –10°C to +60°C
  • Full scale operating pressure: 60 PSIA (4.1 barA)

Features

Build and performance options

  • Communication: Analog, RS–232, RS–485, Modbus RTU, Modbus TCP/IP, DeviceNet, EtherCAT, EtherNet/IP, Profibus, PROFINET
  • Process connections: NPT, SAE, AN, BSPP/G, compression, VCR, VCO
  • Displays: Backlit monochrome or color; integrated or panel–mount; none
  • Elastomers: FKM, FFKM, EPDM, Silicone
  • Calibration: Standard or high-accuracy; custom calibration points
  • Aggressive gas compatibility: Models with wetted materials compatible with many pure corrosive gases and most refrigerant gases, in addition to all non-corrosive gases and a variety of liquids are also available.

Links

Product information

Product manuals

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