1. Introdución
O Atago PAL-2 is a high-range digital hand-held pocket refractometer designed for precise measurement of Brix (sugar concentration) in various high-concentration samples. This device is suitable for applications in the food and beverage, pharmaceutical, and chemical industries, among others. Its compact and ergonomic design allows for easy one-handed operation and portability.
Key features include Automatic Temperature Compensation (ATC) for accurate readings across a temperature range, an External Light Interference (ELI) warning, and an IP-65 rating for protection against dust and water jets, allowing for easy cleaning.
Figura 1: O Atago PAL-2 Digital Hand-Held Pocket Refractometer. This image displays the device with its digital screen showing a Brix reading of 80.7% and a temperature of 20.3°C. The sample prism is visible at the top, and the 'START' and 'ZERO' buttons are below the screen.
2. Contido do paquete
Comprobe que todos os elementos que se indican a continuación estean presentes no paquete:
- Atago PAL-2 Refractometer
- AAA Alkaline Batteries (x2)
- Estuche plástico de almacenamento
- Manual de instrucións (este documento)
Figura 2: O Atago PAL-2 Refractometer shown alongside a black lanyard. This image illustrates the compact size of the device and suggests its portability with the included accessory.
3. Configuración
3.1. Instalación da batería
- Localice a tapa do compartimento da batería na parte traseira da unidade.
- Open the cover and insert two (2) AAA alkaline batteries, ensuring correct polarity (+/-).
- Pecha a tapa do compartimento da batería de forma segura.
3.2. Acendido inicial
Preme o INICIO button to power on the device. The LCD will display the current temperature and battery level.
4. Instrucións de funcionamento
4.1. Calibration (Zero Setting)
For accurate measurements, calibrate the refractometer with water before use, especially if the ambient temperature has changed significantly.
- Ensure the prism surface is clean and dry.
- Apply a few drops of clean tap water or distilled water onto the prism surface, ensuring it covers the entire surface without air bubbles.
- Close the daylight plate gently.
- Preme o CERO button. The display will show "0.0%" or "CAL" briefly, then return to 0.0% Brix. This indicates successful calibration.
- Clean the prism surface thoroughly with a soft cloth or tissue.
4.2. Facer unha medida
- Ensure the prism surface is clean and dry.
- Apply a few drops (approximately 0.3 mL) of the sample liquid onto the prism surface. Ensure the sample covers the entire surface.
- Close the daylight plate gently.
- Preme o INICIO button. The measurement will be displayed in approximately 3 seconds.
- Read the Brix value and temperature from the LCD.
- After measurement, clean the prism surface immediately with a soft, damp cloth or tissue, then dry it.
4.3. Automatic Temperature Compensation (ATC)
The PAL-2 features ATC, which automatically adjusts the Brix reading to a standard reference temperature (typically 20°C) based on the sample's measured temperature. This ensures accurate readings even if the sample temperature fluctuates between 10°C and 100°C.
4.4. External Light Interference (ELI) Warning
If direct light interferes with the measurement, the device will display a warning message. To resolve this, move the refractometer to a location with less direct light or shield the prism from strong light sources during measurement.
5. Mantemento e coidados
5.1. Cleaning the Prism
Always clean the prism surface immediately after each use. Use a soft, damp cloth or tissue to wipe off the sample. For sticky or viscous samples, a small amount of warm water can be used. The IP-65 rating allows the unit to be washed under running water, but avoid submerging the entire device.
5.2. Limpeza xeral
Wipe the body of the refractometer with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the casing ou pantalla.
5.3. Almacenamento
Store the refractometer in its plastic storage case in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries if the device will not be used for an extended period to prevent leakage.
6 Solución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| Sen pantalla cando está acendido | Baterías agotadas ou mal instaladas | Substitúa as pilas por pilas alcalinas AAA novas, asegurándose de manter a polaridade correcta. |
| Lecturas inexactas |
|
|
| "ELI" warning displayed | Interferencia de luz externa | Move the device away from direct light sources or shield the prism during measurement. |
| Slow measurement response | Sample temperature outside ATC range or extreme ambient temperature | Permitir sample to reach a temperature within the 10°C to 100°C range. Ensure ambient temperature is between 10°C and 40°C. |
7. Especificacións
| Parámetro | Valor |
|---|---|
| Número de modelo | PAL-2 (R3000-2) |
| Measurement Scale Range (Brix) | 45.0 a 93.0% |
| Measurement Scale Range (Temperature) | 9.0 a 99.9 °C |
| Measurement Resolution (Brix) | 0.1 % |
| Measurement Resolution (Temperature) | 0.1 °C |
| Measurement Accuracy (Brix) | ± 0.2 % |
| Measurement Accuracy (Temperature) | ± 1 °C |
| Sample Measurement Temperature (ATC) | 10 a 100 °C |
| Temperatura ambiente | 10 a 40 °C |
| Sampo Volume | 0.3 ml |
| Tempo de medición | 3 segundos |
| Clasificación de protección de entrada (IP). | IP-65 (Dust tight, protected against water jets) |
| Mostrar | LCD dixital |
| Fonte de alimentación | (2) AAA Alkaline Batteries |
| Dimensións (H x W x D) | 10.9 x 5.5 x 3.1 cm |
| Peso | 100 g |
8. Información de seguridade
- Non deixe caer o dispositivo nin someta o dispositivo a fortes impactos.
- Evite expoñer o dispositivo a temperaturas extremas ou á luz solar directa durante períodos prolongados.
- Do not attempt to disassemble or modify the refractometer, as this will void the warranty and may cause damage.
- Manteña o dispositivo fóra do alcance dos nenos.
- Elimina as baterías segundo a normativa local.
9. Garantía e soporte
Atago products are manufactured to high quality standards. For warranty information, technical support, or service, please contact Atago Co., Ltd. directly or your authorized Atago distributor. Refer to the official Atago website for contact details and the most current warranty policy.
Atago Co., Ltd. is committed to providing reliable analytical instruments that comply with international standards such as HACCP, GMP, GLP, and various ISO standards.
