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Restek ProFLOW 6000 Electronic Flowmeter

Flowmeters that can measure flammable gases are becoming mandatory due to the increased use of hydrogen in chromatography. With its Ex rating, the Restek ProFLOW 6000 meter is designed specifically with explosive and flammable gases in mind.

The Restek ProFLOW 6000 is the only flowmeter you need for any type of chromatography gas measurement because of its wide range of capabilities. The ProFLOW 6000 is an electronic meter capable of measuring volumetric flow for most gases. Real-time measurements can be made for various types of flow paths, including continually changing gas types. This portable unit is designed for easy handheld use, and the stand adds benchtop convenience.

Restek Recommends: To ensure the most accurate flow measurements, recalibrate your ProFLOW 6000 flowmeter once a year. Prolonged failure to recalibrate your unit may result in increased error. Prior to returning your Restek flowmeter, send a completed Health and Safety form and SRV-GC Accessories form to the email address listed at the top of each form. Failure to provide all required information may lead to significant processing delays. Once we have received both completed forms, we will provide authorization and instructions for returning your unit; do not send any equipment back to Restek prior to receiving authorization. Flowmeter service (cat.# 22656-R) includes recalibration and any necessary repairs (there may be an additional charge for repairs).

Restek ProFLOW 6000 Electronic Flowmeter

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Catalog # 22656

Product Name
Restek ProFLOW 6000 Electronic Flowmeter with Hard-Sided Carrying Case  

State-of-the-art features include:
  • Measures volumetric flow for gases across a range of 0.5–500 mL/min.
  • NIST traceable calibration.
  • Ex rating (electrical apparatus for explosive gas atmospheres) for hydrogen and related gas types.
  • Accuracy of ± 2.00% of flow reading or ± 0.200 mL/min, whichever is greater.
  • Over-range warning indicator.
  • Auto shutoff feature.
  • Use as a benchtop or handheld unit.
  • Ergonomic design and side grips for comfort.
  • Measures most gas types.*
  • Convenient carrying/storage case included.
  • Uses two AA batteries (included).
  • Data output via USB port.
  • One-year warranty (excludes recalibration).
  • Recalibration service available.

*The flowmeter is designed to measure clean, dry, noncorrosive gases.

Flowmeter Specifications
Type of Flowmeter: Volumetric
Battery: 2-AA
Operating Temp. Range: 32–120 °F (0–48 °C)
Warranty: One-year warranty (excludes recalibration)
Certification/Compliance: CE, Ex, Canadian ICES-003, WEEE, RoHS 2, China RoHS 2, UKCA

Restek's Competitive Advantage: Comparing Flowmeters


Low Flow (mL/min)

High Flow (mL/min)


Gases Measured

Volumetric or Mass Flow Measured

Gas Exhaust

Data Port

Power Supply

Restek ProFLOW 6000



Accuracy of ± 2.00% of flow reading or ± 0.200 mL/min, whichever is greater.






Agilent ADM



Accuracy of ± 2.00% of flow reading or ± 0.200 mL/min, whichever is greater.





3-AA or USB

Alicat M Series

Five versions of flow

Five versions of flow


30 single and combo gases




9 volt