Rotronic AwTherm Water Activity Meter

With AwTherm, Rotronic offers a professional, high-end laboratory unit for temperature-stabilised measurement of water activity in the foodstuffs, cosmetics, or pharmaceutical industries.

The wide control range permits measurements to be integrated directly in the tempered manufacturing or storage process. Water activity measurement reacts very sensitively to variances in temperature. Stabilising the temperature prevents imprecise results due to external temperature infl uences.

Interchangeable measuring head 

A further advantage of AwTherm is that the measuring head is removable, which means that the probe can be temperature-calibrated or adjusted to give high precision.

User-friendliness

The AwTherm shows its paces in island-operation mode, with its simple handling and clarity. No laboratory should be without the device in conjunction with the ROTRONIC HW4 software.

Why measure water activity?

The free water in a product influences its microbiological, chemical and enzymatic stability. If there is too much free water present, the products spoil; too little water can be detrimental to the product characteristics.

Measuring water activity provides useful information about characteristics such as cohesion, storage lifetime, clotting or pourability of powders, tablets, etc., or the adhesive properties of coatings.

Features at a glance

• ROTRONIC HYGROMER® IN-1
• Highest precision through exact stabilisation of temperature
• Wide temperature-control range
• Excellent reproducibility
• Excellent long-term stability
• Variable size of sample container
• Reference probe exchangeable for calibration or cleaning
• Fast measurements with the AwQuick function
• Simple operation via Touch Interface
• Conforms to ISO 21807 / EMC 2008/108/EC / IEC EN 61010-1:2010.

For further information on the AwTherm water activity meter and other Rotronic instruments, please visit the website or call +41 44 838 11 44.