Rotronic AW-Therm Temperature-Stabilized Water Activity Analyzer
- Accuracy: ±0.005 aw, ±0.1 K
- Temperature control range: 0…60 °C
- High temperature stability: ±0.01 °C/min
- Variable sample container sizes: 14 / 40 mm
- Interchangeable reference probe for cleaning and calibration
- AW Quick function for fast measurement results (typically 4 – 5 minutes)
- Real-time clock with backup battery
- Touch panel for simple operation
- Description
- Additional information
- Specifications
Description
The Rotronic AW-Therm is a high-end laboratory instrument designed for precise, temperature-stabilized measurement of water activity (aw). Here’s a breakdown of its key features and applications:
Key Features:
- Temperature-Stabilized Measurement:
- A crucial feature, as water activity is highly temperature-dependent. The AW-Therm maintains a stable temperature, ensuring accurate and reliable readings.
- It has a wide temperature control range, allowing measurements to be taken under conditions that mimic actual manufacturing or storage processes.
- High Accuracy:
- Offers very high accuracy in water activity measurements, essential for quality control in various industries.
- Versatile Applications:
- Used in the food, pharmaceutical, and cosmetics industries, where water activity is a critical parameter for product quality and safety.
- User-Friendly Design:
- Features a touch panel for easy operation and an LCD display.
- The measuring head is removable, facilitating calibration and cleaning.
- AW Quick Function:
- Provides fast measurement results, saving time in quality control processes.
- Software Compatibility:
- Compatible with Rotronic’s HW4 software, enabling data management and analysis.
- Variable Sample Sizes:
- Accommodates different sample sizes with variable sample container sizes.
Applications:
- Food Industry:
- Ensuring the shelf life and safety of food products by controlling water activity.
- Used in the production of various foods, including dried goods, baked goods, and processed foods.
- Pharmaceutical Industry:
- Monitoring the water activity of pharmaceuticals to ensure stability and prevent microbial growth.
- Important for tablet stability and the adherence of coatings.
- Cosmetics Industry:
- Controlling water activity to maintain the quality and shelf life of cosmetic products.
In essence, the Rotronic AW-Therm is a sophisticated instrument that provides precise and reliable water activity measurements, essential for quality control in industries where moisture content is a critical factor.
Additional information
| Brand | Rotronic |
|---|
| General specifications | |
| Device type | Temperature-stabilized water activity measurement |
| Operating conditions | 1…40 °C (34…107 °F) |
| Measurement range | 0.005…1.000 aw |
| Accuracy | ±0.005 aw (10…30 °C)
±0.1 °C (±0.18 °F) |
| Power supply | 110…230 V / 50…60 Hz |
| Display | 8-line LCD with touch operation |
| Sample sizes | Variable (14 mm / 40 mm) |
| Technical specifications | |
| Current consumption | ≤2 A |
| Temperature control range | 0…60 °C (32…140 °F) |
| Temperature stability | ±0.01 °C/min (±0.018 °F/min) |
| Chamber-temperature gradient | <0.1 °C (<0.18 °F) |
| Firmware update | Via USB port |
| Probe | |
| Sensor | HYGROMER® IN-1 |
| Maintenance / Calibration | Annual calibration (recommended) |
| Long-term stability | <0.01 aw/year |
| Temperature sensor | Pt100, DIN 1/3 Class B |
| Functions | |
| HW4-compatible | Yes (v 3.6.0 and higher) |
| aw-Quick function | Yes |
| Interface | Micro USB |
| Calibration / Adjustment | Aw & temperature:
HG2-S (probe removed with AwT-CAL) Aw: Rotronic humidity standards (via HW4) |
| Trend indicator | Yes |
| Approval / Conformity | |
| Standards | ISO 18787 |
| CE / EMC | EMC 2004/108/EC IEC EN 61010-1:2010 |
| IP protection | IP21 |
| Housing / Mechanics | |
| Enclosure material | PC / ABS |
| Housing dimensions | 400 x 180 x 180 mm |
| Sample container dimensions | AwT-PS14: Ø46 x 14 mm
AwT-PS40: Ø46 x 40 mm |
| Weight | 4200 g |
