The Whisper™ MCW Series Low Pressure Drop Mass Flow Controllers

Low pressure drop mass flow controllers are ideal for systems with low source pressure. The instruments produce as little as 0.07 PSID pressure loss.

• 0.01-100 % measurement range (10,000:1 turndown)
• 98 pre-loaded gas calibrations: switch without losing accuracy
• Measures mass flow, volumetric flow, temperature, and pressure
• Laminar differential pressure (DP) mass flow measurement technology
• Users can measure and regulate mass flow without signifant loss in downstream pressure using a low-pressure drop mass flow controller
• Instant accuracy, with no warm-up
• Limited Lifetime Warranty
• Configurations available for bidirectional control of flow

Image Credit: Alicat Scientific, Inc.

• Operating Pressure Range: 11.5-60 PSIA
• Full Scale Flow Ranges: 0.5 SCCM-1,000 SLPM

MCW Series Controller

Image Credit: Alicat Scientific, Inc.

For Gas Control with Low Pressure Drop

Fast proportional control

• 30 ms control response
• 0.5 SCCM-1,000 SLPM options
• 60 PSIA max operating pressure
• 0.5-100 % of full-scale control range (200:1 turndown)
• Accuracy as good as ± 0.6 % of reading or ± 0.1 % of full scale, whichever is greater

MCDW Series Controller

Image Credit: Alicat Scientific, Inc.

For Bi-directional Flow Applications

Control in both directions

• 100 ms control response
• 0.5 SCCM-500 SLPM options
• 60 PSIA max operating pressure
• 0.5-100 % of full-scale control range (200:1 turndown)
• Controls pressure in a closed volume, measures flow rate (leak checking)
• Accuracy as good as ± (0.4 % of the total span from positive full scale to negative full scale)

Available Variants

MC Series Controller

The standard laminar DP MFCs.

SFF / MCV Series Controller

Control gas at vacuum pressures, SEMI footprint options.

IS-Max Series Controller

MFC that is inherently safe in explosive environments.

Build Options

Source: Alicat Scientific, Inc.