Atago PEN-Dried Fruit Moisture Refractometer – Dried Fruit Moisture Analysis

The PEN-Dried Fruit Moisture Refractometer is a dip-type digital device manufactured by Atago that calculates approximate moisture content in dried fruits through Brix measurement. The measurement principle is straightforward: the device reads the dissolved solids content (Brix) on the cross-sectional surface of the sample, and moisture percentage is derived using the formula %Moisture = 100 – Brix.

The dip-type design enables the device to make direct contact with the fruit's internal cross-section, thereby reducing measurement errors caused by surface drying. Measurement is completed within seconds and the sample remains undestroyed, making it a practical solution for instantaneous quality control on production lines.

The 15.0-100.0% moisture range covers products at various stages of the drying process. The ±0.2% accuracy level provides sufficient precision for rapid field measurements; while not as exact as oven drying methods, it delivers results in seconds rather than hours.

The device lacks IP65 protection and temperature compensation, therefore measurements should be conducted at controlled ambient temperature and protected from humid or dusty environments. It serves as a practical alternative for dried fruit producers, export quality control operations, and quality assurance teams requiring field analysis capabilities.

Technical Specifications

Applications

• Instantaneous moisture/quality control on dried fruit production lines
• Verification of dried fruit moisture standards prior to export
• Field measurement at various stages of the drying process