Aquadyne DVS

Dynamic vapor sorption analyzers

Aquadyne DVS instruments are fully automated, gravimetric, dynamic water vapor sorption instruments. They measure full water vapor/moisture adsorption/desorption isotherms, including sorption kinetics, accurately and sensitively with minimal operator involvement. The one-station Aquadyne DVS-1 offers a weighing resolution of 0.1 µg and an analysis temperature range of 15 °C to 60 °C. Aquadyne DVS-2HT offers increased throughput with a second analysis station, a broader temperature range of 10 °C to 85 °C, and the unique ability to combine stations for a maximum sample weight of 10 g.

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Technical Specifications

Balance heads 1 (DVS-1), 2 (DVS-2HT)
Balance type Ultrasensitive electronic microbalance
Balance capacity 5 g per balance head
10 g combined (DVS-2HT only)
Dynamic weighing range ±500 mg, 0 mg to 1000 mg (per station)
±1000 mg, 0 mg to 2000 mg combined (DVS-2HT only)
Weighing resolution 0.1 µg
RH range <2 % to 98 % (depending on temperature)
RH resolution 0.1 %
RH accuracy ±0.8 % RH at 25 °C
Sample chamber temperature range 15 °C to 60 °C (DVS-1)
10 °C to 85 °C (DVS-2HT)
Sample chamber temperature stability ±0.1 °C
Gas flow rates 0 cm³/min to 200 cm³/min (mass flow controllers)
Viewing port/sample chamber door Heated, triple-glazed
Data acquisition rate Adjustable, up to 12 points per minute
Sample pan material Silica
Water reservoir capacity 46 mL

Application Reports