aWLife Water Activity Meter
aWLife Water Activity Meter
What is water activity why is it measured?
Water activity is a ratio of partial pressures between a substance and pure water. To put it simply, it is a measurement of ‘available water’ in a substance and it determines the degradability and stability of a product which affects the shelf life directly e.g. Available water can be used by microbes to promote their growth. By taking water activity (aW) into account during food product R&D, a manufacturer can create a recipe with an extended shelf life. Food safety is of great concern in food manufacturing processes and by measuring water activity of a product as part of quality control, safety standards can be maintained along the production line.
Why aWLife?
Dew point sensor
aWLife is the highest performing instrument on the market thanks to its dew point sensor which measures the actual water activity (aW) and not related and secondary parameters. For this reason the dew point sensor is considered the reference point for these determinations.
Single and multiple analysis of samples
New calibration and control modes allow the operator to optimize times even in the case of multiple analysis of samples with very different aW values. Thanks to the introduction of innovative calculation and temperature control systems, aWLife allows you to carry out different types of analysis: from simple determination of control to specific shelf life tests for each individual case.
Single and intuitive work flow
Thanks to the latest generation touch screen graphic display, Wi-Fi and USB compatibility, Waterlab guarantees a simple and intuitive work flow allowing automatic data saving and immediate recognition of the sample and the operator as well as the possibility to communicate with a PC and external memory cards.
Why use the aWLife?
aWLife is the latest water activity meter available on the market, bringing you a whole new user experience to measure water activity. Equipped with dew point sensor and multipoint calibration mode, water activity measurement is done accurately within 5 minutes. With a specialised ‘Stress mode’ to simulate temperature ramp during logistics to allow you to know more about what happens to your goods during transportation. aWLife shows the change of water activity in real-time on the 7” color touch screen. The instrument is easy to clean and only requires minimal maintenance.
- Shelf life testing
- Formulate profitable products
- Control microbial growth
- Avoid formulation issues
- Predict temperature abuse during distribution
- Develop optimised packaging
- Shelf life testing
- Formulate profitable products
- Control microbial growth
- Avoid formulation issues
- Predict temperature abuse during distribution
- Develop optimised packaging
aWLife is an indispensable tool for the quality control of products and ingredients in the food, pharmaceutical and cosmetic fields.
Wherever it is necessary to study the shelf life of a product in order to determine its risk of microbial development and therefore its shelf life over time, aWLife is the ideal solution. aWLife is also the highest performing instrument on the market thanks to its dew point sensor which measures the actual water activity and not related and secondary parameters. For this reason the dew point sensor is considered the most accurate for these measurements.
Visualise the change of water activity in real-time on the 7” color touch screen.
New calibration and control modes allow the operator to optimise times even in the case of multiple analysis of samples with very different water activity values. Thanks to the introduction of innovative calculation and temperature control systems, aWLife allows you to carry out different types of analysis: from simple determination of control to specific shelf life tests for each individual case.
Thanks to the latest generation touch screen graphic display and USB compatibility, aWLife guarantees a simple and intuitive work flow allowing automatic data saving and immediate recognition of the sample and the operator as well as the possibility to communicate with a PC and external memory cards.
aWLife Specifications
aWLife Specifications
Main features
- Water activity meter in compliance with ISO 21807: 2004 and subsequent 18787
- Latest generation colour touch screen display 7"
- User friendly software with pop up and warning systems for easy workflow management.
- Equipped with USB outputs for connection to an external PC and for downloading data to a mobile memory support.
- Total flexibility in data management thanks to the possibility of storing information, producing graphics, saving the operators name.
- Set up for connection to external barcode readers and printers.
Technical Features
- Measurement range: from 0.030 to 1,000 aW
- Accuracy: ± 0.003 water activity at + 25 ° C
- Repeatability (standard deviation): ± 0.001 aW
- Calibration: on six points (0.250 - 0.500 - 0.760 - 0.920 - 0.984 - 1,000)
- Balance / measurement times: <5 minutes
- Probe sensor: dew point (sensor required by ISO 21807: 2004 and subsequent 21787)
Sensor block with front opening for easy sample insertion and cleaning. Equipped with a fan to even out the head space, a high-seal chamber with a gasket capable of guaranteeing very little environmental interference - Display resolution: ± 0.0001 water activity (4 decimal place) - (improvement compared to ISO 21807: 2004)
- Security: administrator and user management by password (in accordance with 21 CFR part 11 - guarantee of non-modifiability of the data acquired)
- Complete thermostatic of the sample: at + 25 ° ± 1 ° C (adjustable from + 15 ° C to + 50 ° C)
- Operation at room temperature: from + 5 ° C to + 50 ° C
- Digital resolution: 0.01 ° C
- Temperature Accuracy: ± 0.2 ° C
- Temperature Uncertainty: ± 0.2 ° C
Calibration Standards
Calibration Standards
The Steroglass aWLife calibration standards and sample cups and lids are open standards and compatible with any dew point sensor Water Activity instrument. Above photo shows 5 ampoules, each box contains 50 ampoules.
Above photo shows Calibration Standards boxes containing 50 ampoules.
The following Calibration Standards are available:
- Calibration Standard 0.250aW 50 pieces
- Calibration Standard 0.500aW 50 pieces
- Calibration Standard 0.760aW 50 pieces
- Calibration Standard 0.920aW 50 pieces
- Calibration Standard 1.000aW 50 pieces
- Calibration Standard 0.984aW 50 pieces
aWLife sample cups with lids, 250 pieces, are also compatible with any Water Activity analyser.
Need more information / Questions?
Need more information / Questions?
Please contact us by phone or email:
Freephone 0800 724 633
Or use the contact form below:
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