The digital flowmeter provides reliable accurate real-time measurements for all your gas streams.  The flowmeter is calibrated (NIST-traceable) for air, N₂, O₂, H₂, He, Ar/CH₄, CO₂.  It has 2% reading accuracy, and a measuring range from 0.01 - 500 ml/min.  The flowmeter works equally well with positive and negative (vacuum) flow sources and may be placed in-line for continuous flow measurement.  It incorporates a rugged solid-state sensor with microprocessor control that measures true mass flow without the ambient temperature and pressure change errors that affect soap film and acoustic sensor meters. 

Zero-point thermal drift makes accurate low-flow measurements (0.01 ml/min resolution) possible. 

Versatile fittings and flow adaptors 

Each flowmeter includes interchangeable fittings and 1/32” and 1/8” ID tubing for low- and high-flow measurements.  General Purpose, Agilent split vent and capillary column adaptors are also included.  The flowmeter is battery powered (9V alkaline battery).  

NIST traceable calibration 

The flowmeter is calibrated with seven gases using NIST traceable standards.  An economical recalibration service maintains the unit’s performance, and includes minor repairs and a NIST-traceable calibration certificate.  The certificate includes percent error data indicating how far your meter was out of calibration - if applicable - thus helping you meet ISO, GLP, GMP and other quality system requirements.

For part numbers and pricing please contact your local Markes distributor or visit our on-line shop. 

Relevant technical support publications from Markes International can be automatically downloaded from this web site (registration required). Examples include:

• Brochure - Thermal Desorption and Air Monitoring Products

Other thermal desorption sampling accessories available from Markes include: 

Air sampling pumps
MTS-32 sequential tube sampler
Bio-VOC breath sampler
VOC-Mole soil probe 
FLEC Cell
µ-CTE Micro-Chamber / Thermal Extractor
Calibration Solution Loading Rig
TC-20 tube conditioner
Pneumatic control accessory
Helium Gas Leak Detector
Sorbent tubes for Thermal Analysis - Evolved Gas Collection 

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