1. Introducción
The AMTAST WA-60AB is a portable, high-precision water activity meter designed for quick and accurate measurement of water activity (aw) in various substances, particularly food products like jerky, freeze-dried food, and more. Understanding water activity is crucial for assessing food preservation, stability, and quality. This manual provides detailed instructions for the proper use, maintenance, and troubleshooting of your WA-60AB meter.

Image: The AMTAST WA-60AB Water Activity Meter, shown against a background of various fresh foods, highlighting its application in food quality control.
2. Producto terminadoview
2.1 Características principales
- Portabilidad definitiva: Weighing approximately 100 grams, this meter is highly portable for on-the-go water activity testing.
- Mediciones precisas y confiables: Offers a measurement range of 0-1.0aw with a resolution of ±0.01aw and accuracy of 0.02aw, ensuring precise readings.
- Integrated Sensor for Ease of Use: Features a non-conductive humidity sensor and integrated readings in a single unit, simplifying the measurement process.
- Quick & Efficient Testing: Proporciona resultados rápidos, completando las mediciones de la actividad del agua en aproximadamente 5 minutos.
- Pantalla y funciones convenientes: Equipado con una pantalla LCD retroiluminada de 6 dígitos que muestra simultáneamente la actividad del agua (aw) y la temperatura. Incluye opciones de apagado automático y manual, e indicador de batería baja.
- Seamless Data Transfer: Supports Bluetooth data transfer for convenient PC communication and software data management.
2.2 Componentes
The AMTAST WA-60AB package typically includes:
- WA-60AB Water Activity Meter (Host Unit)
- Sampel plato(s)
- Bolsa portátil
- USB Data Cable (for software connection)
- CD de software (o enlace de descarga)
- Manual de instrucciones

Image: The AMTAST WA-60AB meter shown with text explaining its function in assessing preservation and stability of food and medicine.

Image: A collage demonstrating various applications of the water activity meter, including dried fruit, beef jerky, cookies, and sausage, illustrating its wide utility.
3. Especificaciones
| Parámetro | Valor |
|---|---|
| Número de modelo | WA-60AB |
| Rango de medición | 0 ~ 1.0 aw |
| Resolución | ±0.01 aw |
| Exactitud | 0.02 aw |
| Condiciones de funcionamiento de temperatura | 0-50°C |
| Condiciones de funcionamiento con humedad | <95% RH |
| Peso del artículo | 3.53 onzas (aprox. 100 g) |
| Fuente de alimentación | 2 pilas AAA de 1.5 V (UM-4) |
| Material | ABS plastic + Aluminium Alloy |
| Mostrar | LCD retroiluminado de 6 dígitos (aw y temperatura) |

Image: The AMTAST WA-60AB meter with its dimensions and a summary of its technical specifications.
4. Configuración
4.1 Instalación de la batería
The WA-60AB meter requires 2 x 1.5V AAA batteries (not included due to shipping regulations). To install the batteries:
- Localice la tapa del compartimiento de la batería en la parte posterior del dispositivo.
- Deslice o abra la tapa.
- Inserte dos pilas AAA, asegurándose de la polaridad correcta (+/-) como se indica dentro del compartimento.
- Cierre bien la tapa del compartimento de la batería.

Imagen: A view of the AMTAST WA-60AB meter's battery compartment, showing where to insert the two AAA batteries.
5. Instrucciones de funcionamiento
5.1 Realización de una medición
- Ensure the meter has sufficient battery power.
- Prepara tu sample. Place a small, representative amount of the sample onto the provided sampla placa. Asegúrese de queample completely covers the sensor area without overflowing.
- Carefully place the meter onto the sample plate, ensuring the sensor makes full contact with the sampel.
- Presione el POTENCIA/TX button to turn on the device. The backlit LCD screen will illuminate.
- The meter will begin the measurement process automatically. Readings for water activity (aw) and temperature will be displayed simultaneously.
- Allow approximately 5 minutes for the reading to stabilize and for the final accurate measurement to be displayed.
- Once the reading is stable, you can record the values.
- Para apagar el dispositivo, mantenga presionada la tecla POTENCIA/TX button, or it will automatically shut off after a period of inactivity to conserve battery life.

Imagen: Un primer plano view of the AMTAST WA-60AB's backlit LCD screen, illustrating how water activity and temperature values are clearly displayed.

Image: The AMTAST WA-60AB meter with an overlay indicating its quick 5-minute measurement time, emphasizing efficiency.
5.2 Data Transfer (Bluetooth Version)
For models with Bluetooth functionality, you can transfer measurement data to a PC for analysis and record-keeping. Refer to the included software manual for detailed instructions on pairing the device and using the data transfer features.

Image: The AMTAST WA-60AB meter depicted with a Bluetooth icon, signifying its capability for seamless data transfer to a computer.
5.3 Vídeo instructivo
Video: An official demonstration of the AMTAST Smart Water Activity Meter, showing its operation and features. This video illustrates the process of taking a measurement with the device.
6. Mantenimiento
6.1 Limpieza
After each use, especially when measuring different samples, limpia el sample plate and the sensor area thoroughly. Use a soft, damp cloth to wipe the surfaces. Do not use abrasive cleaners or immerse the device in water. Ensure the sensor area is dry before storing or taking the next measurement.
6.2 Almacenamiento
Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures. If the device will not be used for an extended period, remove the batteries to prevent leakage.
7. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| El dispositivo no se enciende. | Baterías bajas o agotadas; instalación incorrecta de la batería. | Reemplace las baterías por otras nuevas; asegúrese de la polaridad correcta. |
| Lecturas inexactas o fluctuantes. | Sensor not clean; insufficient sampel; sample not evenly spread; environmental interference. | Clean sensor and sample plate; ensure adequate sample size and even spread; perform measurement in a stable environment. |
| Problemas de conexión Bluetooth. | Device not in pairing mode; software not installed correctly; out of range. | Refer to software manual for pairing instructions; reinstall software; ensure device is within Bluetooth range. |
| Aparece el indicador de batería baja. | Las baterías se están agotando. | Reemplace las baterías rápidamente. |
8. Garantía y soporte
For warranty information, technical support, or service inquiries, please contact AMTAST customer service. Refer to the product packaging or the official AMTAST webSitio para obtener los datos de contacto más actualizados.
You can visit the AMTAST Store for more information: Tienda AMTAST en Amazon.





