Name: AquaLab 4TE Series
Brand: AquaLab
Rating: 4 (1 reviews)

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2 ABOUT AQUALAB AquaLab

2.2 AquaLab 4 DUO Speciﬁcations

Moisture Content Repeatability: 0.02%

Accuracy to Moisture Content Ref.: 0.1% to 0.5%

2.3 AquaLab Model and Options

Series 4: Uses a chilled-mirror dew point sensor, but lacks the tem-

perature control features found in our premium models.

Series 4TE: User-selectable internal temperature control model,

uses thermoelectric (Peltier) components to maintain internal tem-

perature.

Series 4TEV: Uses both a chilled-mirror dew point sensor and a ca-

pacitance sensor for measuring non-volatile and volatile substances,

respectively. Either sensor is easily selected using the instrument

menu system.

Series 4TE DUO: Uses a chilled-mirror dew point sensor and pro-

grammed models obtained from isotherm data to give the user both

water activity and moisture content simultaneously in ﬁve minutes

or less.

Series 4TEV DUO: Uses both a chilled-mirror dew point sen-

sor or capacitance sensor as well as programmed models obtained

from isotherm data to give the user both water activity and mois-

ture content simultaneously for samples containing both non-volatile

and volatile substances.

AquaLab and Water Activity

Water activity (a

) is a measurement of the energy status of the wa-

ter in a system. The value indicates how tightly water is “bound”,

structurally or chemically, within a substance. Water activity is the

relative humidity of air in equilibrium with a sample in a sealed

chamber. The concept of water activity is of particular importance

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AquaLab 4TE Series Specifications

General