1. Увод
The AMTAST WA-60A Portable Water Activity Meter is designed for precise measurement of water activity (aw) in various substances, including food products like beef jerky, freeze-dried food, fruits, and vegetables. This device helps assess product preservation and stability by quantifying the free water content. Its portable design and integrated sensor make it a convenient tool for on-site analysis.
2. Производ је готовview
Слика 2.1: The AMTAST WA-60A Water Activity Meter in use, displaying a water activity reading. This device measures free water activity to assess the preservation and stability of food, medicine, and other products.
Слика 2.2: The AMTAST WA-60A Water Activity Meter with its sample plate. The kit typically includes the meter, sample plate, portable bag, and manual for accurate measurement of free water content.
Кључне карактеристике:
- Преносиви дизајн: Weighing approximately 100 grams, this meter is lightweight and suitable for on-the-go testing.
- Прецизна мерења: Offers a measurement range of 0-1.0aw with a resolution of ±0.01aw and an accuracy of 0.02aw.
- Интегрисани сензор: Features a non-conductive humidity sensor and integrated readings in a single unit, simplifying water activity analysis.
- Брзо тестирање: Provides rapid results, typically completing measurements within 5 minutes.
- Очисти екран: Equipped with a 6-digit backlit LCD screen that simultaneously displays water activity (aw) and temperature.
- Функције једноставне за коришћење: Includes automatic and manual shut-off options, along with a low battery indicator.
Слика 2.3: Детаљно view of the meter's backlit LCD screen, showing both the water activity (aw) and temperature values for clear readings.
Слика 2.4: Image showing the battery compartment for 2x1.5V AAA batteries and the non-conductive humidity sensor. The device also features automatic shutdown, manual shutdown, and alarm indication.
3. Спецификације
Слика 3.1: The AMTAST WA-60A Water Activity Meter shown alongside its key specifications.
| Параметар | Валуе |
|---|---|
| Број модела | ВА-60А |
| Меасуремент Ранге | 0.00 ~ 1.00 ав |
| Резолуција | ±0.01 ав |
| Прецизност | ±0.02 ав |
| Temperature Operation Conditions | 0-50°Ц |
| Humidity Operation Conditions | <95% РХ |
| Тежина артикла | 100 грама (3.53 унци) |
| Повер Суппли | 2 x 1.5V AAA Size (UM-4) Battery (not included) |
| Материјал | АБС |
| Димензије | Approximately 13.5 cm (5.3 inches) height, 7 cm (2.8 inches) width |
4. Подешавање
Before first use, ensure the device is properly set up.
- Инсталација батерије: Open the battery compartment on the back of the meter. Insert two 1.5V AAA batteries, ensuring correct polarity. Close the compartment securely.
- SampЛе Холдер: The meter comes with a sample holder featuring a strong magnetic connection. Ensure the sample holder is clean and dry before use.
- Calibration (Highly Recommended): For accurate and reliable results, especially for food safety applications, it is highly recommended to calibrate the meter using certified water activity standards. This should be done in the range relevant to your testing.
Видео 4.1: This video demonstrates the setup and basic operation of the AMTAST WA-60A Water Activity Meter, including how to prepare samples for measurement.
5. Операција
Follow these steps for accurate water activity measurement:
- Припремите Сampле: Postavite svoj sample into a clean, dry sample cup. Ensure the sample fills the cup adequately without overflowing.
- Место Сampле: Поставите сample cup onto the base of the meter. The magnetic sample holder will secure it in place.
- равнотежа: Кључни корак: After placing the sample and closing the meter, allow sufficient time for the sample to equilibrate with the sensor. This process can take several hours, or even overnight, depending on the sample type and environmental conditions. Do not turn on the meter immediately.
- Укључено: Једном сample has equilibrated, turn on the meter while it is still closed on the sampле.
- Очитај мерење: The LCD screen will display the water activity (aw) and temperature. Allow the reading to stabilize before recording the final value.
- Искључивање: The device features automatic and manual shut-off options. To manually turn off, press and hold the power button.
Видео 5.1: Овај видео пружа општи прегледview of the AMTAST Smart Water Activity Meter, demonstrating its use in a laboratory setting.
Видео 5.2: This video demonstrates the process of using the Water Activity Meter for monitoring food water activity (AW).
Слика 5.1: The meter is designed for quick and efficient testing, providing accurate readings for water activity measurements.
Слика 5.2: The AMTAST WA-60A is widely used for testing water activity in various food products, including dried fruits, beef jerky, cookies, and sausages.
6. Одржавање
- Чишћење: Задржите сample holder and sensor area clean and free from debris. Use a soft, dry cloth to wipe the device. Do not use abrasive cleaners or immerse the device in water.
- Складиштење: Store the meter in its protective case in a cool, dry place when not in use. Remove batteries if storing for extended periods to prevent leakage.
- калибрација: Regular calibration with known standards is essential to maintain accuracy. Refer to Section 4 for calibration recommendations.
КСНУМКС. Решавање проблема
| Проблем | Могући узрок | Решење |
|---|---|---|
| Inaccurate or erratic readings | Insufficient equilibration time; lack of calibration; dirty sensor. | Обезбедите сample equilibrates for several hours before measurement. Calibrate the device regularly with appropriate standards. Clean the sensor and sampле холдер. |
| Уређај се не укључује | Мртве или неправилно инсталиране батерије. | Check battery polarity. Replace batteries with fresh 1.5V AAA batteries. |
| Екран је затамњен или нечитљив | Ниска батерија. | Замените батерије. |
8. Безбедносне информације
- Не покушавајте сами да растављате или поправљате уређај. За сервис контактирајте квалификовано особље.
- Држите уређај даље од екстремних температура, влаге и директне сунчеве светлости.
- Пажљиво рукујте уређајем како бисте избегли физичка оштећења.
- Батерије одложите у складу са локалним прописима.
9. Гаранција и подршка
For warranty information, technical support, or service inquiries, please contact AMTAST customer service. Refer to the product packaging or the official AMTAST webсајт за контакт детаље.
AMTAST Official Store: Visit the AMTAST Store on Amazon