1. Introducción
The VTSYIQI VTS-160A Water Activity Meter is designed to measure the water activity of various food products. Water activity is a critical factor influencing food stability, microbial growth, and chemical, enzymatic, and physical changes that affect food quality and shelf life. This portable device provides accurate measurements to assist in food preservation and quality control.
Características principales:
- Portable and lightweight design (approx. 100g).
- High precision with an accuracy of ±0.02 aw.
- Fast measurement time, typically 5 minutes.
- Integrated sensors and readings for ease of use.
- LCD backlight digital display showing water activity and temperature simultaneously.
- Automatic and manual shutdown functions.
- bajovoltage alarm indication.
- USB data output option for PC connection.
Figure 1.1: The VTS-160A Water Activity Meter in use, demonstrating its application across various food types.
Figure 1.2: Product Introduction diagram highlighting the main components of the VTS-160A meter.
2. Componentes y accesorios
The VTS-160A Water Activity Meter comes with the following standard accessories:
- Main Unit (VTS-160A Water Activity Meter)
- Sampel plato(s)
- Estuche de transporte
- Manual de operación
Figure 2.1: The VTS-160A Water Activity Meter with its standard accessories, including the carrying case and sample plates.
3. Especificaciones
Parámetros técnicos:
| Parámetro | Valor |
|---|---|
| Mostrar | 6-bit backlight LCD digital display (3-bit humidity aw, 3-bit temperature) |
| Rango | 0 to 1.0 aw |
| Resolución | ±0.01 aw |
| Exactitud | ±0.02 aw |
| Sensor | Sensor de humedad no conductor |
| Samptiempo de ling | 5 minutos (típico) |
| Operating Condition (Temperature) | 0 a 50 °C (32 a 122 °F) |
| Operating Condition (Humidity) | <95% RH (sin condensación) |
| Fuente de alimentación | 2 x 1.5V AAA (UM-4) Batteries (not included) |
| Dimensiones | 135 x 70 x 44 mm |
| Peso | 100g (sin pilas) |
Especificaciones generales:
- Product Dimensions: 40 x 10 x 25 cm (packaged)
- Item Weight: 4 kg (packaged)
- Color: Gris
4. Configuración
4.1 Instalación de la batería
- Localice el compartimiento de la batería en la parte posterior del medidor.
- Deslice la tapa de la batería para abrirla.
- Insert two 1.5V AAA (UM-4) batteries, ensuring correct polarity.
- Cierre bien la tapa de la batería.
Figure 4.1: Open battery compartment on the back of the VTS-160A meter.
5. Procedimiento de funcionamiento
5.1 Measuring Water Activity
- Presione el Fuerza key to switch on the meter. The gauge will enter auto mode, automatically initiating the water activity test.
- Coloque su sampdéjalo en un lugar limpioampla placa. Asegúrese de queample is representative and fills the plate adequately without overflowing.
- Carefully cover the sensor of the meter onto the sample plate, ensuring a good seal.
- Allow approximately 5 minutes for the reading to stabilize. Once stable, the water activity value will be displayed on the LCD.
- After testing, press and hold the Fuerza key for approximately 3 seconds to turn off the meter.
- limpiar el sample plate thoroughly after each use to prevent cross-contamination and ensure accurate future readings.
Figure 5.1: Step-by-step guide for performing a water activity measurement.
6. Reading Correction (Calibration)
If it becomes necessary to correct the reading value, follow these steps:
- Mantenga pulsado el Fuerza durante aproximadamente 7 segundos.
- Release the key when the signal 'Cor' appears on the display. A decimal number with two places, representing the current correction value, will be shown.
- Open the battery cover on the back of the meter. Below the battery slot, you will find two small holes.
- Using a small, hard, non-conductive tool (e.g., a small screwdriver or toothpick), gently touch the key inside the left hole to increase the correction value.
- Gently touch the key inside the right hole to decrease the correction value. Adjust the value as needed.
- Presione el Fuerza key again to confirm the new correction value. The measured reading will update, and the calibration is complete.
Figure 6.1: Step-by-step guide for performing reading correction.
7. Mantenimiento
7.1 Limpieza
- Limpie siempre elample plate immediately after each use to prevent residue buildup, which can affect measurement accuracy.
- Utilice un paño suave y seco.amp cloth to wipe the exterior of the meter. Do not use abrasive cleaners or solvents.
- Ensure no liquids enter the sensor area or battery compartment.
7.2 Almacenamiento
- When not in use, store the meter in its carrying case to protect it from dust and physical damage.
- Conservar en un lugar fresco y seco, alejado de la luz solar directa y de temperaturas extremas.
- Retire las baterías si el dispositivo no se utilizará durante un período prolongado para evitar fugas.
8. Solución de problemas
If you encounter issues with your VTS-160A Water Activity Meter, consider the following:
- Sin energía: Compruebe que las baterías estén correctamente instaladas y tengan suficiente carga. Reemplácelas si es necesario.
- Lecturas inexactas: Asegúrese de que el sample plate is clean and the sensor is properly seated on the sample. Perform a reading correction as described in Section 6. Verify that the operating conditions (temperature, humidity) are within the specified range.
- Lecturas lentas: Asegúrese de que el sample is properly prepared and the environment is stable.
- Problemas de visualización: Si la pantalla está oscura o parpadea, reemplace las baterías.
Si hay problemas persistentes que no se resuelven con estos pasos, comuníquese con el servicio de atención al cliente.
9. Información de soporte
For technical assistance, warranty inquiries, or service, please contact VTSYIQI customer support through your purchase platform or the official VTSYIQI websitio.
Please have your model number (VTS-160A) and purchase date available when contacting support.
