Water activity / Moisture

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 same or better performance as other models while putting isotherm technology within financial reach for scientists.

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 to 60 °C (sample chamber temperature; sample temperature is measured separately, and may vary)

Temp Stability: ±0.1 °C

Water Activity and Moisture Content in Snack Foods

Water Activity and Moisture Content in Candy and Confectionery

Water Activity and Moisture Content in Cereal and Grain Products

Water Activity and Moisture Content in Coffee and Tea

Water Activity and Moisture Content in Cosmetics

Water Activity and Moisture Content in Plastics and Other Materials

Water Activity and Moisture Content in Nuts and Dried Fruit

Water Activity and Moisture Content in Pet Food

Water Activity and Moisture Content in Pharmaceuticals

Water Activity and Moisture Content in Powders and Spices

Water Activity and Moisture Content in Processed and Cured Meats

Water Activity and Moisture Content in Sauces and Dressings

Water Activity and Moisture Content in Seeds

Water Activity and Moisture Content in Tobacco

Water Activity and Moisture Content in Buildings