Atago 3730 Digital Hand-Held "Pen" Refractometer Pen-Pro Instruction Manual

1. Introduction

The Atago 3730 Digital Hand-Held "Pen" Refractometer, also known as the Pen-Pro, is designed for precise measurement of Brix/Sucrose levels. This device offers a measurement range of Brix 0.0 to 85.0%, making it suitable for a wide variety of samples. Its ergonomic design allows for comfortable one-handed operation, and its robust construction ensures durability and ease of cleaning.

Key features include:

• Ergonomic design for one-handed operation.
• Automatic Temperature Compensation (ATC) for accurate readings regardless of ambient temperature.
• IP65 protection class for the main unit and IP67 for the prism head, allowing for easy rinsing under running water.
• Revolutionary External Light Interference (ELI) feature for enhanced measurement stability.
• Convenient storage case for protection and portability.

2. Product Overview

Figure 1: Atago 3730 Pen-Pro Digital Refractometer. This image displays the device's elongated, pen-like body, with a prism at one end, a digital display showing "12.1%" in the middle, and a "START" button.

The Atago Pen-Pro refractometer is designed for ease of use and portability. Its pen-like form factor allows for quick and convenient measurements in various settings.

3. Setup

1. Unpacking: Carefully remove the refractometer and its accessories from the packaging. Inspect for any damage.
2. Battery Installation: Locate the battery compartment (usually at the rear or top of the device). Insert the required batteries, ensuring correct polarity. (Specific battery type not provided, refer to device markings if available.)
3. Initial Cleaning: Before first use, gently clean the prism surface with a soft, lint-free cloth and distilled water. Ensure no residue remains.
4. Zero Calibration (if necessary): For optimal accuracy, perform a zero calibration using distilled water. Apply a few drops of distilled water to the prism, press the START key, and if the reading is not 0.0%, refer to the troubleshooting section or contact support for calibration instructions.

4. Operating Instructions

The Pen-Pro offers two primary methods for taking measurements:

Method 1: Dip and Measure

1. Ensure the prism surface is clean and dry.
2. Dip the tip of the refractometer (prism end) directly into the sample liquid. Ensure the prism is fully immersed.
3. Press the START key.
4. The measurement will be displayed on the digital screen within approximately 2 seconds.
5. Remove the refractometer from the sample and clean the prism immediately after use.

Method 2: Apply and Measure

1. Ensure the prism surface is clean and dry.
2. Press the START key first.
3. Immediately touch the tip of the refractometer (prism end) into the sample liquid, allowing a few drops to cover the prism surface.
4. The measurement will be displayed on the digital screen within approximately 2 seconds.
5. Clean the prism immediately after use.

Continuous Measurement Feature

The Pen-Pro also supports continuous measurements. While specific activation steps are not detailed, typically this involves holding the START button or a dedicated mode button. Refer to the device's on-screen prompts or a more detailed supplementary guide for continuous measurement mode activation and usage.

5. Maintenance and Care

Proper maintenance ensures the longevity and accuracy of your Atago Pen-Pro refractometer.

• Cleaning the Prism: After each measurement, rinse the prism surface thoroughly under running water. The IP67 rating of the prism head allows for this. Use a soft, lint-free cloth to gently wipe off any remaining sample or water droplets. Avoid abrasive materials that could scratch the prism.
• Cleaning the Body: The main unit has an IP65 rating. Wipe the body with a damp cloth if necessary. Do not immerse the entire unit in water.
• Storage: When not in use, store the refractometer in its convenient storage case in a cool, dry place, away from direct sunlight and extreme temperatures.
• Battery Replacement: Replace batteries promptly when the low battery indicator appears on the display to ensure consistent performance.

6. Troubleshooting

7. Specifications

8. Warranty and Support

Information regarding the product warranty and customer support details is typically provided with the product packaging or on the manufacturer's official website. Please refer to these resources for specific warranty terms, registration, and contact information for technical assistance or service.

For further assistance, please contact Atago customer support.