J57HA Automatic Refractometer for Food Quality Testing

Description

Engineered specifically for quality control in the food industry, the Rudolph J57HA Automatic Refractometer prioritizes ease of use, speed, and accuracy in production settings. It utilizes a fully automatic measuring system; an operator simply applies the sample to the flat prism surface, presses a button, and reads the result on a backlit LCD display, eliminating the need for manual eyepiece adjustment. The instrument measures refractive index from 1.33 to 1.53 RI and Brix from 0% to 95%, with a stated accuracy of ±0.00004 RI and ±0.03 BRIX. It resolves measurements to ±0.00001 RI or ±0.01 BRIX. A significant feature is its built-in electronic temperature control system, which maintains the sample at a set point between 10°C and 65°C. This provides absolute accuracy for various sample types (not just pure sucrose solutions) and ensures thermal stability even for samples taken directly from heating or cooling processes, offering a practical alternative to external water baths. Measurement time is configurable and typically under five seconds.