Fast and precise water activity measurements

Published: 25-May-2012

Rotronic water activity devices are accurate and characterised by high efficiency, exchangeability and ease of calibration

Water activity in perishable foods and pharmaceutical products has a significant influence on their shelf life and storability. Water activity also has a determining influence on the quality of a product, its stability, taste and aroma. Rotronic offers a complete range of water activity products. The devices are accurate and characterised by their high efficiency, exchangeability and ease of calibration.

Users can choose from a wide variety of measuring instruments to suit their needs and field of application. The latest development from Rotronic, for example, is the Station probe that can be directly connected to a PC running HW4-P-QUICK-Vx software enabling water activity measurement capability. The HC2-AW-USB is the perfect device for a multistation application, as multiple probes can be attached to a single PC. Measurement range: 0.00 – 1.00 Aw (0 –100%RH), -40°C to +85°C.

The HygroLab C1 is a high-end laboratory device

The HygroLab C1 is a high-end laboratory device

The high-end laboratory device – the HygroLab C1 – for water activity measurements with up to four probes is ideal for measurement of water activity in cheese, meat, tobacco, animal feed and building materials. Equipped with an Ethernet or USB port for network capability, the benchtop device delivers reliable measured values within five minutes with its AW Quick function and the validated HW4 software supplied with the instrument guarantees complete programming and data logging possibilities. The station probes are designed for use with HygroLab C1 or HygroPalm HP23-AW-A. Minimised internal volume of the sensor chamber ensures fast equilibrium with all products. Range of application -40 to +85°C and 0 – 100% RH.

The portable, mobile version for measurement of water activity is the handheld HygroPalm23-AW-A. Like the laboratory device, this instrument can also be used together with measuring probes and insertion probes. Range of application -10°C – +60°C / 0 –1 Aw / 0 – 100% RH.

The portable, mobile version for measurement of water activity is the handheld HygroPalm23-AW-A

The portable, mobile version for measurement of water activity is the handheld HygroPalm23-AW-A

You can obtain further detailed information on the measuring instruments for water activity and all accessories such as measuring probes, sample holders, insertion probes and the HW4 software at www.rotronic.com or by telephone on +41 44 838 11 44.

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