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MODELS: GC50 / GC51

GC Mass Flow Controller 

Supercompact Gas Flow Control for Benchtop and Laboratory Systems

The GC Series delivers precise, stable gas flow control in an ultra-small footprint, 20 X 40 X 60 mm. Designed for non-GMP tabletop biotech, laboratory systems, and cost-sensitive OEM platforms, GC combines value-based MEMS technology with practical performance and in-situ calibration capability.

Features & Benefits
  •  In-Situ Verification & Recalibration with BCAT Software: Minimize spares inventory. Reduce downtime. Keep systems running on your schedule.
  • Wide Control Range, 100:1 Turndown Ratio, Across Full Scale: Cover more operating conditions with a single device. Simplify design and reduce SKUs.
  • Stable, Repeatable Performance, 1.5% S.P. ±0.5% F.S. accuracy
    ±0.25% repeatability: Dependable flow control for lab and pilot applications without premium platform cost. 
  • Excellent Valve Shut-Off, Leak-by < 0.005 sccm: Improve process integrity and reduce unwanted gas flow when closed.
  • Simple Integration, Analog I/O + Modbus RTU (RS-485): Integrates easily into new or existing control systems without added complexity.
  •  Safe Area Certified & Globally Compliant: Supports global deployment and regulatory alignment for laboratory and OEM systems.
Applications
  • Benchtop bioreactors
  • Lab-scale fermentation systems
  • Media preparation systems
  • Analytical equipment
  • Medical and respiratory analyzers 
  • Cost-sensitive OEM platforms 

 

Type of Media Gas
Flow Measuring Principle Thermal (TMF)
Flow Range 210 - 5000 sccm
Accuracy Range 1.5% of S.P. ±0.5% of F.S.
Repeatability ±0.25% S.P
Max Pressure 150 psi
Operating Temperature 0 - 50°C
Seal Option Elastomer
Measure/Control Measure & Control (Controller)
Max Flow 5000 sccm
Max Temperature 50 celsius
Connectivity RS485, Analog (0–5 V), Analog (0–10 V), Analog (0–20 mA), Analog (4–20 mA)
Filename
File Type
Documents by Language
Data Sheet - GC Series
PDF
Installation & Operation Manual - GC Series
PDF
RS485 Supplemental Manual - GC Series
PDF

Use the following guide (model code information from data sheet) to translate the CAD configurations available below. If you need assistance or can’t find what you’re looking for, please contact Applications Engineering or your local Brooks Instrument representative.

Example: GC50-1H

Series
  Mechanical Connection
GC 1A - No Fitting
  GC   1B - 1/4” Tube Compression
GC    1E - 1/4” VCR
GC    1H - 6mm Tube Compression
Filename
File Type