Flow Controllers & Meters


PCU–Series: Gas Flow Portable Calibration Unit

When one device won’t do, the PCU-Series Gas Flow Portable Calibration Unit combines up to 3 high-accuracy flow meters across a range of up to 500 SLPM into one rugged, industrial carrying case for versatile, on-the-go flow verification or calibration.
  • Versatile. Quickly calibrate multiple instruments across a combined operating range up to 100,000:1 (for example 5 SCCM to 500 SLPM) with easy push-connect fittings or optional compression fittings.
  • Portable. On the go-carrying case powered by 4 AA batteries or the included AC/DC power supply adaptor.
  • Rugged. The PCU houses the flow meters within a rugged, drop-resistant hard case.

PCUs cannot recalibrate other Alicat instruments. For annual recalibration, please send your Alicats to your local service center. High-volume customers with an in-house metrology lab can contact Alicat for more options.

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Included with calibration unit purchase
  • Portable calibration unit with up to 3 high-accuracy mass flow meters mounted internally
  • Push-connect fittings mounted below each flow meter’s display
  • USB A-B cable for connection to a computer
  • Universal power supply
  • NIST-traceable calibration certificates for each flow meter
  • FlowVision software (free download)

Device specs and customization options

Quick Specs
PCU-Series performance
  • Available flow ranges: Choose any 3 flow meters with ranges up to 500 SLPM (for standard or anti-corrosive devices) or 250 SLPM (for Whisper low pressure drop devices)
  • Operating range: Up to 1,000,000:1 (combined from 3 instruments)

For flow meter specifications and operating conditions, check out the spec sheets here.

Optional Accessories
Accessories | Sold separately
  • BB3 and BB9 multi-drop breakout boxes
  • Additional communications cables and conversion cables

Not exactly what you’re looking for?

  • Check out our flow or pressure control and measurement solutions.
  • Our expert team of applications engineers is available to provide additional information, discuss your application, or answer any questions you may have.

Contact an applications engineer

Questions about this product?