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Introduction
- The Water Activity, mainly reflects the amount of free water in the state of food balance, the stability of food and the possibility of microbial reproduction, and the chemical, enzyme and physical changes that can cause the change of food quality. It is often used to measure the dryness enduring ability of the microorganisms. By measuring the water activity of food and selecting reasonable packing and storage methods, the use of preservatives can be reduced and the shelf life of food, grain and fruits and vegetables can be judged.
- The WA-60A can be used to measure the water activity of foods. No matter when and where you need to measure water activity, WA-160A water activity meter is your unique choice. This is a real portable water activity meter, with a weight of only 100 grams, lighter than a mobile phone, and a precision of 0.02 aw, easy to measure water activity anytime and anywhere.
Features
- This is a real portable water activity meter, with a weight of only 100 grams, lighter than a mobile phone, and a precision of 0.02 aw, easy to measure water activity anytime and anywhere.
- Sensors and readings are integrated.
- Fast test, measurement of water activity in 5 minutes.
- Easy reading, water activity and temperature of the samples displayed together.
- It has automatic shutdown, manual shutdown function and undervoltage alarm indication function.
- Use USB data output to connect with PC.(The software with cable is optional accessory, you need to get it separately)
Calibration
WA-60A water activity meter has been calibrated by factory, so users do not need to calibrate it again. Just use it directly.
If you want to verify the accurate, you can use the standard salt solution by the following steps:
1. 100g pure NaCl, add into 200g hot distilled water, stir it. Then wait till to room temperature.
2. Keep the solution into a brown bottle for one week in room temperature.
3. In room temperature 25°C (77°F), make sure the meter, solution, room temperature all same temperature. The solution AW value should be 0.73~0.77
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