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AquaLab Vapor Sorption Analyzer

  • Measurements:
    • Moisture Content,
    • Moisture Sorption Isotherms
  • Overview
  • Specifications
  • Support
  • Education

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.  Before you learn about our product, you might be interested in:

- Why isotherms are important

- 2 other ways people measure moisture sorption

- 5 examples of how moisture sorption isotherms can improve quality

As for the product itself, here are the key points:

Simplicity

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.

Control

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).

Affordability

Costing 50-80% less than other moisture vapor sorption analyzers, 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 technology within financial reach for scientists.

VSA
  • Get a quote for this product (United States)
  • Get a quote for this product (International)
  • Schedule a demo
  • Contact a Decagon sales representative

Specifications

Accuracy : ±0.005aw

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 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

Support

Manuals

  • Manual: AquaLab Vapor Sorption Analyzer

Software & Downloads

  • VSA Downloader

Request Support

Email: support@decagon.com
Phone: 800-755-2751 or
509-332-2756
Fax: 509-332-5158

Education

Virtual Seminar

  • January 25, 2012: Virtual Seminar: Introducing the Vapor Sorption Analyzer - Top 10 Facts
  • September 19, 2012: Virtual Seminar: Get More Out of your AquaLab
  • March 27, 2013: Virtual Seminar: Water Activity and Pet Foods
  • April 17, 2013: Virtual Seminar: Fundamentals of Water-Solid Interaction by Dr. Lisa Mauer of Purdue University

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Related Products or Services

  • AquaLab Dew Point Water Activity Meter 4TE

Why Isotherms

The AquaLab Vapor Sorption Analyzer uses the same chilled-mirror technology as Decagon's AquaLab water activity meter to generate high resolution moisture sorption isotherms in about 48 hours. An important formulation tool. » Learn more

Alternative Methods

Methods for measuring moisture sorption isotherms used to be complex, time consuming, and often, imprecise. » Learn more

Five Isotherm Examples

If you want to know how to actually use moisture sorption isotherms in your R&D efforts, here are five examples of groups that have done just that. » Learn more

2365 NE Hopkins Court
Pullman, WA 99163 - USA
1-800-755-2751 / Int’l: 509-332-2756
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