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AQUALAB VSA Complete moisture sorption isotherm analysis

Updated:2025-03-13

Brand: METER
Model: AQUALAB VSA
Description: The AQUALAB VSA delivers fast, high-resolution graphs that change the way you understand your product and DVS isotherm interpretation. Dual testing modes and sophisticated modeling software turn your
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Product Details

AQUALAB VSA Complete moisture sorption isotherm analysis Description：

Precision in every point

Newer DVS (Dynamic Vapor Sorption) methods are fast - but expensive and less data-driven. Old school isotherm creation requires acres of desiccators and months of manual data collection. AQUAL AB VSA delivers both DVS isotherms and truly dynamic high-resolution DDI isotherm curves - with hundreds of points, instead of just five or six. All within 48 hours. Solve problems like caking and clumping, matching the excipient to the API, and choosing correct packaging.

Higher resolution, less time

The VSA's groundbreaking design uses a fast water activity sensor combined with a very precise scale to create isotherm graphs dynamically. It passes humidified air over samples and measures both weight and water activity simultaneously. It then creates sorption and desorption isotherm curves with hundreds of points, instead of just five or six. And it does so in only a couple of days (approximately 48 hours), instead of a couple of months.

Double the insight

While average instruments only use the DVS method, Aqualab VSA delivers DVS isotherms plus DDI isotherm curves. DDI curves make never-before-seen details visible in your product and allow more precise formulation, more accurate predictions, and more complete product knowledge.

Moisture Analysis Toolkit

The VSA comes with intuitive, full-featured modeling software. The Moisture Analysis Toolkit helps you turn your data into solutions using research-tested predictive models. It's every model you need in one place, in a simple-to-use program.

Function：

5 minute test setup

Automatic data recording and delivery

Match or outdo other systems at 50-80% of the cost

Full-featured DVS and high resolution DDI isotherm creation and analysis to help you:

Identify critical moisture ranges with high resolution DDI isotherms

Study sorption kinetics with DVS isotherms

Identify critical humidity for glass transition

Determine shelf life

Evaluate packaging performance

Determine hygroscopicity

Track hysteresis

Predict coating breakdown

Find susceptibility to caking/clumping

AQUALAB VSA Complete moisture sorption isotherm analysis規格：

Measurement Specifications	Mass Resolution	0.5 mg
	Water Activity	Range: 0.0300 to 0.9500 a_w@ 25°C Resolution: 0.0001 a_w Accuracy: +0.0050 a_w
	External Gas	7.0000 psi max
	Isotherm Methods	Dynamic Dew Point Isotherm (DDI) & Static (DVS)
	Temperature	Range: 15.00 - 60.00 °C Resolution:0.01 °C Accuracy: +0.10 °C
	Read Time	~5 min (~48 hours for a DDI test)
Communication Specifications	Data Communications	USB
Physical Specifications	Case Dimensions	Length: 38.1 cm (15.0 in) Width: 26.7 cm (10.5 in) Height: 30.5 cm (12.0 in)
	Program Identification	Alphanumeric, programmable to display product name, lot, or product ID number.
	Sample Cup Volume	10.0000 cc
	Sample Weight Range	500.0000 - 5000.0000 mg
	Universal Power	110- 240 VAC 50/60 Hz
	Water Reservoir	20 mL
	Display	64 X 128 graphical
	Sample Cup Capacity	14 mL (0.47 fl oz)
	Operating Environment	4 to 50°C; 0 to 90% relative humidity (noncondensing)
	Case Material .	ABS with Fire Retardant: POLYLAC PA-765
	Weight	14.9 kg (33 lb)