The Rotronic AwTherm Water Activity Meter is a professional high-end laboratory analyser for temperature-stabilized measurement of water activity in the food, pharmaceutical, cosmetics and other industries.
- High temperature stability: ±0.01 °C / min
- Measurement repeatability: 0.002 aw
- Variable sample container sizes: 14 / 40 mm
- Interchangeable reference probes for cleaning or calibration
- Aw Quick function for fast measurement results (typically 4-5 minutes after reaching a stable temperature)
- Aw Equilibrium method available
The wide control range permits measurements to be integrated directly in the temperature controlled manufacturing or storage process. Water activity measurement reacts very sensitively to variances in temperature. Stabilizing the temperature prevents imprecise results due to external temperature influences. Tested at 25 °C, AwTherm therefore fulfills the requirements of ISO 21807 (Microbiology of food and animal feeding stuffs – Determination of water activity), which requires measurement at 25 °C.
Interchangeable measurement head - A further advantage of AwTherm is the removable measurement head, which means that the probe can be temperature calibrated or adjusted to achieve high precision.
User friendliness - In stand-alone use, the AwTherm excels with its easy handling and clarity and, together with the Rotronic HW4 software (FDA 21 CFR part 11 compliant), should be available in any laboratory.
All packages include:
- AwTherm body
- Standard measurement head
- Humidity standards (0.5%, 10%, 35%, 80%, 95% RH nominal values)
- USB Cable-Type A/B
AwTherm-PS14 includes:
- 14 mm disposable sample dishes with sample holder
- HygroSoft software
AwTherm-PS40 includes:
- 40 mm disposable sample dishes with sample holder
- HW4-P-QUICK software
AwTherm-SET includes:
- 14 and 40 mm disposable sample dishes with sample holders
- HW4-P-QUICK software
Canadian Owned