Atago PAL-87S Digital Hand-Held Pocket Wine Refractometer User Manual

Product Overview

The Atago 4487 PAL-87S is a compact, portable, and water-resistant digital refractometer designed specifically for measuring must sugar in wine. It features a dual scale for Oe (Oechsle) and Brix measurements, automatic temperature compensation (ATC), and an LED display with External Light Interference (ELI) technology for accurate readings in various lighting conditions. Its durable ABS resin body is rated IP-65 for protection against dust and water jets, making it suitable for use in diverse environments.

Image: The Atago PAL-87S refractometer, showing its compact design, digital display, and measurement prism. The display shows a reading of 12.8 with a temperature of 20.3°C.

What's in the Box

• 4487 PAL-87S refractometer
• Rigid plastic storage case
• AAA batteries (2)
• Instructions (this manual)

Key Features

• Handheld pocket refractometer for wine measurement of Oe (Oechsle) 0 to 240 degrees and Brix 0.0 to 53.0%.
• Automatic Temperature Compensation (ATC) for accurate readings between 10.0 to 40.0 degrees C.
• LED-illuminated digital display with External Light Interference (ELI) feature to alert of outside light interference.
• Compact, rectangular palm-sized shape (109 x 55 x 31mm) with prism housed in a circular sample well.
• Durable acrylonitrile butadiene styrene (ABS) resin body with Ingress-Protection (IP)-65 rating for protection against dust and water jets.

Setup

1. Battery Installation

1. Locate the battery compartment on the back of the unit.
2. Open the compartment cover.
3. Insert two AAA batteries, ensuring correct polarity (+/-).
4. Close the battery compartment cover securely.

2. Initial Calibration

The PAL-87S is factory-calibrated. For routine calibration or if accuracy is in question, you can calibrate the unit using tap water.

1. Ensure the prism surface is clean and dry.
2. Apply a small amount of tap water (approximately 0.3ml) to the prism surface.
3. Press the ZERO button. The display should show "0.0" or a value very close to it.
4. Wipe the water off the prism with a soft, clean cloth.

Operating Instructions

1. Sample Preparation

Ensure your wine sample is free of large particles and at a temperature within the operating range (10 to 40 degrees C). The metal sides of the sample well are designed to help the sample quickly conform to the prism temperature for accurate readings.

2. Taking a Measurement

1. Clean the prism surface thoroughly with a soft, lint-free cloth.
2. Apply approximately 0.3ml of the wine sample onto the prism surface. The sloped shape of the sample well helps with pouring and prevents spills.
3. Press the START button.
4. The measurement will be displayed within three seconds, showing either the Oe (Oechsler) or Brix percentage and the temperature.
5. After measurement, immediately clean the prism and sample well with water and wipe dry.

3. Understanding the Display

• The main numerical display shows the measurement in either Oe (Oechsler) or Brix, depending on the selected mode.
• A smaller display indicates the sample temperature.
• ELI (External Light Interference) Alert: If the ELI icon appears, it indicates that too much external light (e.g., direct sunlight) is interfering with the measurement. Move to a less brightly lit area or shield the prism from direct light and re-measure.

Maintenance

Cleaning the Prism

Always clean the prism immediately after each use. Use a soft, lint-free cloth and clean water. Do not use abrasive materials or harsh chemicals, as they can damage the prism surface. The unit is IP-65 rated, meaning it is protected against dust and low-pressure water jets, allowing for easy rinsing of the prism area.

Storage

When not in use, store the refractometer in its rigid plastic storage case in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries if storing for extended periods to prevent leakage.

Troubleshooting

Specifications

Warranty Information

The Atago 4487 PAL-87S refractometer comes with a limited two-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please refer to the official Atago warranty policy for full terms and conditions.

Support

For technical assistance, service, or further inquiries regarding your Atago PAL-87S refractometer, please contact Atago customer support. Contact information can typically be found on the official Atago website or through your local distributor.