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Restek ProFLOW 6000 Electronic Flowmeter, 0.5 to 500 mL/min, 22656

Product information "Restek ProFLOW 6000 Electronic Flowmeter, 0.5 to 500 mL/min, 22656"

The ProFLOW 6000 is an electronic flowmeter for gases. It measures the volume flow in the range of 0.5 to 500 mL/min and is used to measure gas flows in gas chromatography. The calibration is NIST-traceable, meaning it is traced back to standards of the American National Institute of Standards and Technology. The instrument runs on two AA batteries, outputs data via a USB port and comes in a hard-shell case.

Measuring range and accuracy

The measuring range extends from 0.5 to 500 mL/min. The accuracy is ±2 % of the flow reading or ±0.2 mL/min, whichever is greater. This results in a threshold at 10 mL/min: below it, the fixed component of ±0.2 mL/min determines the deviation, above it the percentage. At 100 mL/min it is ±2 mL/min, at 500 mL/min ±10 mL/min. Anyone checking flows around 1 mL/min has to include the ±0.2 mL/min in their assessment, because there it corresponds to a fifth of the reading.

For orientation, how large the permitted deviation is at a given reading (the greater of the two values in each case):

ReadingDeviationShare of reading
0.5 mL/min±0.2 mL/min40 %
1 mL/min±0.2 mL/min20 %
5 mL/min±0.2 mL/min4 %
10 mL/min±0.2 mL/min2 %
50 mL/min±1 mL/min2 %
100 mL/min±2 mL/min2 %
250 mL/min±5 mL/min2 %
500 mL/min±10 mL/min2 %

Most gas types can be measured, provided they are clean, dry and non-corrosive. Humid or aggressive gas flows therefore do not belong on this instrument. If a flow lies outside the measuring range, the ProFLOW 6000 shows an out-of-range warning.

Handling, power supply and data output

The ProFLOW 6000 can be used as a benchtop or handheld instrument. The ergonomic housing has side grips. Two AA batteries power the instrument and are included. The batteries are thus already part of the scope of delivery. An automatic shut-off function switches the instrument off by itself. Data output runs via the USB port. A hard-shell case for transport and storage is part of the scope of delivery.

Warranty and recalibration

Restek grants a one-year manufacturer's warranty on the ProFLOW 6000 from the date of purchase. Your statutory warranty rights against LT Laborhandel remain unaffected. Recalibration is excluded from the warranty. Restek offers its own service for recalibration.

Typical applications

  • Measuring gas flows in gas chromatography, volume flow from 0.5 to 500 mL/min
  • Measurement on clean, dry, non-corrosive gases

The measuring range up to 500 mL/min is intended for measuring gas flows in gas chromatography. Flows above 500 mL/min are outside the range, and the instrument then shows the out-of-range warning. Gases with moisture or corrosive components are not intended for the ProFLOW 6000.

For gas leak detection on the same system there is the electronic leak detector from Restek. The flowmeter measures the volume flow, while the leak detector reports by sound and LED how large a leak is.

Technical details

Part number22656
Instrument typeElectronic flowmeter for gases
Measured quantityVolume flow of gases
Measuring range0.5 to 500 mL/min
Accuracy±2 % of flow reading or ±0.2 mL/min, whichever is greater
CalibrationNIST-traceable
Gas typesMost gas types, only clean, dry, non-corrosive gases
Power supply2 AA batteries
InterfaceUSB port for data output
FunctionsWarning display when out of range, automatic shut-off function
DesignBenchtop or handheld instrument, side grips
Product classFlow meters
Pack contents1 piece
RecalibrationRecalibration service available
Warranty1 year from date of purchase, excluding recalibration

Scope of delivery

  • 1 electronic flowmeter ProFLOW 6000
  • Hard-shell case for transport and storage
  • 2 AA batteries

Individual requirements and procurement service

Besides the ProFLOW 6000, Restek offers very many further instruments and accessories for chromatography, plus GC columns in numerous phases and dimensions. LT Laborhandel procures them on request, including by Restek part number. Send us the number or your requirement, and we will get back to you with a quote. Whether a gas is clean, dry and non-corrosive should be settled before ordering, because the ProFLOW 6000 is designed only for such gases.