AMTAST WA-60A Portable Water Activity Meter Instruction Manual

1. Úvod

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. Konec produktuview

Obrázek 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.

Obrázek 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.

Klíčové vlastnosti:

• Přenosný design: Weighing approximately 100 grams, this meter is lightweight and suitable for on-the-go testing.
• Přesná měření: Offers a measurement range of 0-1.0aw with a resolution of ±0.01aw and an accuracy of 0.02aw.
• Integrovaný senzor: Features a non-conductive humidity sensor and integrated readings in a single unit, simplifying water activity analysis.
• Rychlé testování: Provides rapid results, typically completing measurements within 5 minutes.
• Jasný displej: Equipped with a 6-digit backlit LCD screen that simultaneously displays water activity (aw) and temperature.
• Uživatelsky přívětivé funkce: Includes automatic and manual shut-off options, along with a low battery indicator.

Obrázek 2.3: Detailní view of the meter's backlit LCD screen, showing both the water activity (aw) and temperature values for clear readings.

Obrázek 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. Specifikace

Obrázek 3.1: The AMTAST WA-60A Water Activity Meter shown alongside its key specifications.

Technické specifikace

Parametr	Hodnota
Číslo modelu	WA-60A
Rozsah měření	0.00 ~ 1.00 aw
Rezoluce	±0.01 aw
Přesnost	±0.02 aw
Temperature Operation Conditions	0-50 °C
Humidity Operation Conditions	<95% RH
Hmotnost položky	100 gramů (3.53 unce)
Napájení	2 x 1.5V AAA Size (UM-4) Battery (not included)
Materiál	ABS
Rozměry	Approximately 13.5 cm (5.3 inches) height, 7 cm (2.8 inches) width

4. Nastavení

Před prvním použitím se ujistěte, že je zařízení správně nastaveno.

1. Instalace baterie: Open the battery compartment on the back of the meter. Insert two 1.5V AAA batteries, ensuring correct polarity. Close the compartment securely.
2. Sample Holder: The meter comes with a sample holder featuring a strong magnetic connection. Ensure the sample holder is clean and dry before use.
3. 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.

5. Provoz

Follow these steps for accurate water activity measurement:

1. Připravte Sampten: Umístěte své sample into a clean, dry sample cup. Ensure the sample fills the cup adequately without overflowing.
2. Místo Sampten: Umístěte sample cup onto the base of the meter. The magnetic sample holder will secure it in place.
3. Rovnováha: Klíčový krok: 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.
4. Zapnutí: Jakmile sample has equilibrated, turn on the meter while it is still closed on the sample.
5. Měření odečtu: The LCD screen will display the water activity (aw) and temperature. Allow the reading to stabilize before recording the final value.
6. Vypnout: The device features automatic and manual shut-off options. To manually turn off, press and hold the power button.

Obrázek 5.1: The meter is designed for quick and efficient testing, providing accurate readings for water activity measurements.

Obrázek 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. Údržba

• Čištění: Udržujte sample 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.
• Skladování: 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.
• Kalibrace: Regular calibration with known standards is essential to maintain accuracy. Refer to Section 4 for calibration recommendations.

7. Řešení problémů

8. Bezpečnostní informace

• Nepokoušejte se zařízení rozebírat ani opravovat sami. Pro servis se obraťte na kvalifikovaný personál.
• Chraňte zařízení před extrémními teplotami, vlhkostí a přímým slunečním zářením.
• S přístrojem zacházejte opatrně, abyste předešli jeho fyzickému poškození.
• Zlikvidujte baterie v souladu s místními předpisy.

9. Záruka a podpora

For warranty information, technical support, or service inquiries, please contact AMTAST customer service. Refer to the product packaging or the official AMTAST webstránky pro kontaktní údaje.

AMTAST Official Store: Visit the AMTAST Store on Amazon