For The Most Demanding Applications Automatic Refractometers Please remove sample and clean Method: Relractws Index 20C Measure™ Technology tent Pending)

The J457 comes in three configurations to match your operating conditions Rudolph Research Analytical 55 Newburgh Road, Hackettstown, NJ 07840 USA ■ Phone: 973-584-1558 ■ Fax: 973-584-5440 ■ E-mail: info9rudolphresearch.com ■ Internet: www.rudolphresearch.com

The J457 Smart Measure™ advantage Rudolph Research Analytical 55 Newburgh Road, Hackettstown, NJ 07840 USA ■ Phone: 973-584-1558 ■ Fax: 973-584-5440 ■ E-mail: info9rudolphresearch.com ■ Internet: www.rudolphresearch.com

Smart Measure™ Features Smart Measure™ knows when to measure and display a result even when the operator does not. Smart Measure ™ Features J457 (All models): • Dirty prism detection • Insufficient sample load detection • Improper water zero detection • Incorrect calibration detection • Cross contamination detection • Trapped air bubble on prism surface detection Refractometer Specifications J457 (All models) Refractive Index (nD), Brix (% Sucrose), and up to 100 custom programmed scales Measurement scales: Measurement range: control range: Temperature control temperature limit: correction range:...