AMTAST WA-60A Portable Water Activity Meter Instruction Manual

1. Introducció

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. Producte acabatview

Figura 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.

Figura 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.

Característiques principals:

• Disseny portàtil: Weighing approximately 100 grams, this meter is lightweight and suitable for on-the-go testing.
• Mesures precises: Offers a measurement range of 0-1.0aw with a resolution of ±0.01aw and an accuracy of 0.02aw.
• Sensor integrat: Features a non-conductive humidity sensor and integrated readings in a single unit, simplifying water activity analysis.
• Prova ràpida: Provides rapid results, typically completing measurements within 5 minutes.
• Esborra la pantalla: Equipped with a 6-digit backlit LCD screen that simultaneously displays water activity (aw) and temperature.
• Funcions fàcils d'usar: Includes automatic and manual shut-off options, along with a low battery indicator.

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

Figura 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. Especificacions

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

Especificacions tècniques

Paràmetre	Valor
Número de model	WA-60A
Interval de mesura	0.00 ~ 1.00 aw
Resolució	±0.01 aw
Precisió	±0.02 aw
Temperature Operation Conditions	0-50°C
Humidity Operation Conditions	<95% HR
Pes de l'article	100 grams (3.53 unces)
Font d'alimentació	2 x 1.5V AAA Size (UM-4) Battery (not included)
Material	ABS
Dimensions	Approximately 13.5 cm (5.3 inches) height, 7 cm (2.8 inches) width

4. Configuració

Before first use, ensure the device is properly set up.

1. Instal·lació de la bateria: Open the battery compartment on the back of the meter. Insert two 1.5V AAA batteries, ensuring correct polarity. Close the compartment securely.
2. Samptitular: 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. Funcionament

Follow these steps for accurate water activity measurement:

1. Preparar SampLI: Col·loca el teu sample into a clean, dry sample cup. Ensure the sample fills the cup adequately without overflowing.
2. Lloc SampLI: Posicionar el sample cup onto the base of the meter. The magnetic sample holder will secure it in place.
3. Equilibració: Pas crucial: Després de col·locar la 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. Encès: Un cop sample has equilibrated, turn on the meter while it is still closed on the sample.
5. Llegir mesura: The LCD screen will display the water activity (aw) and temperature. Allow the reading to stabilize before recording the final value.
6. Apagar: The device features automatic and manual shut-off options. To manually turn off, press and hold the power button.

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

Figura 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. Manteniment

• Neteja: Mantenir el 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.
• Emmagatzematge: 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.
• Calibració: Regular calibration with known standards is essential to maintain accuracy. Refer to Section 4 for calibration recommendations.

7. Solució De Problemes

8. Informació de seguretat

• No intenteu desmuntar ni reparar el dispositiu vosaltres mateixos. Poseu-vos en contacte amb personal qualificat per al servei tècnic.
• Mantingueu el dispositiu allunyat de temperatures extremes, humitat i llum solar directa.
• Manipuleu el dispositiu amb cura per evitar danys físics.
• Eliminar les bateries segons la normativa local.

9. Garantia i Suport

For warranty information, technical support, or service inquiries, please contact AMTAST customer service. Refer to the product packaging or the official AMTAST weblloc per obtenir dades de contacte.

AMTAST Official Store: Visit the AMTAST Store on Amazon