Food & Pharmaceuticals

Vapour Sorption Analyser

Moisture Research in a Box

For food or pharmaceutical scientists, moisture sorption data can make or break a product.  The AquaLab Vapor Sorption Analyzer (VSA) introduces simplicity, control, and affordability into the process of gathering moisture sorption isotherm data.



Using isotherm data to improve product performance should be part of your job.  Spending countless hours on your lab instrument shouldn't be.  With the AquaLab VSA, it takes about 5 minutes to set up a test.  Once you tell the AquaLab VSA the humidity levels and times you'd like to use, just put the sample into the instrument and walk away.   The data from your test are automatically recorded and sent to your computer.


The AquaLab VSA is the first instrument that allows you to measure both DVS and DDI isotherms on your product.  In simple terms, DDI isotherms are extremely high resolution, allowing you to pinpoint critical moisture ranges for product quality.  DVS isotherms allow you to study kinetics, or how long it takes for something to happen.  For example, how long it would take for a potato chip that starts at 0.15aw to lose its crispness in air that's at 80% relative humidity.  AquaLab VSA can measure isotherms by constantly introducing saturated or dry air into the chamber (DDI), or it can control humidity at a specific level, raising and lowering RH when equilibrium has been reached (DVS).


Costing 50-80% less than other moisture vapor sorption analysers, the AquaLab VSA can fit into an R&D budget.  Its affordability results from the new approach we've taken to DDI and DVS isotherms.  AquaLab VSA gets the the same or better performance as other models, while putting isotherm science within financial reach for scientists.

Isotherm Generation Service

Using the Vapour Sorption Analyser, Labcell offer an Isotherm Generaton Service. Please contact us for more information or a quote.

Telephone 01420 568150 or e-mail

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Non UK/Ireland Customers

Non UK/Ireland Customers, please contact Meter Food at:

Feature Specification
Accuracy ±0.005 aw
Repeatability ±0.003 aw
Range 0.030 to 0.950 aw
Isotherm Methods Dynamic Dewpoint Isotherm (DDI) & Static (DVS)
External Gas Not needed, if external gas no more than 7PSI.
Computer Interface USB
Mass Resolution ±0.1 mg
Water Reservoir 20ml
Sample Cup Volume 10cc
Sample Weight 500 to 5,000mg
Power 110 V to 220 V AC, 50/60 Hz
Weight 28 lbs
Temperature 15°C to 60 °C (sample chamber temperature; sample temperature is measured separately, and may vary)
Temp Stability ±0.1 °C
Dimensions W 10" x L 15" x H 12" , 25.4cm x 38.1cm x 30.5cm

Aqualab Catalogue
Size: 1.2 MB (1,244,288 bytes)

VSA Data Sheet.
Size: 393.5 KB (402,978 bytes)

Quotation Request

Email us to request a quotation for the Vapour Sorption Analyser