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Home > Flow Calibration / Measurement

Flow Calibration / Measurement

ATC, Inc. provides innovative flow measurement and calibration products. Our patented Intelligent Gas Flow Sensors (IGFS) and Standards offer solutions for complex flow measurement challenges. Our Micro-Flow Technology for leak testing and calibration has introduced a new dimension in the area of micro-fluid dynamics.

Challenging Precision Gas Flow Measurement Applications

  • Gas mixtures flow measurements.
  • Hot gas flow measurements.
  • Moisturized gas flow measurements.
  • Applications such as Natural Gas flow measurements and control, Fuel Cell performance measurements of gas mixtures, hydrogen and humid gases.
  • Hydrogen and hazardous gas flow measurement and control with Class 1 Div. 1 & 2 design.

In-Line, Nonintrusive Gas Flow Calibration Standards
(Intelligent Gas Flow Standard, the IGFS)

  • Economical solution.
  • 10:1 and 20:1 turn down ratio.
  • Multiple standards design.
  • Volumetric flow measurement as low as 0.6% of reading.
  • Calibration/measurement ranges from 0.005 cc/min to 10, 000 LPM (multiple standards).

Calibrate Leak Devices: Equivalent Channels (EC) - a proprietary micro-machines sized and calibrated to a given diameter and length, along with the resultant gas flow (air, helium, H2) at your test condition.

Equivalent Diameters (ED) - a micro-geometry sized to yield a given flow rate for air, nitrogen helium and other gases at your test conditions.

Gas Flow Calibration Systems: Our GAS-CAL© product line offers an affordable precision gas flow measurement and calibration solution.

Precision Gas Flow Calibration - utilizes Critical Venturi Devices from medium and high-flow ranges and uncertainty of 0.35% of reading (better uncertainty available, consult ATC, Inc.).

In-Line Portable Liquid Flow Standard: Our FLO-CAL© product line offers you transfer and primary flow standards, automatic flow manifold and data acquisition. Used in automotive, pharmaceutical and aerospace applications.

Primary Gas and Liquid Flow Standards: Primary standards to unprecedented low flow with any gas, and liquids. Consult ATC, Inc.

Calibration Services: ATC, Inc. provides calibration services for your instruments.


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ATC, Inc.'s Intelligent Gas Leak Sensor (IGLS), Intelligent Gas Flow Sensor/Standard (IGFS), Intelligent Molecular Flow Sensor (IMFS), Mass Extraction Technology and Leak-Tek© Program are proprietary products belonging to Advanced Test Concepts (ATC), Inc. and are protected by existing patents (5,861,546; 6,308,556B1; 6,584,828B2; 6,854,318B2; EP1356260) as well as other US and International patents pending.

Adaptive Test Feature and Set Up Tools are proprietary products belonging to ATC, Inc. and are protected by existing patent (7,231,811B2). The Leak-Tek© Program, Gas-Cal© Program, and Flo-Cal© Program are protected by international copyright laws.