Technical video for the Rudolph DDM 2911 Density Meter. This video details the procedure required to clean the Density Meter prior to or after making a liquid density measurement. The video covers using a syringe to inject cleaning solvent, drying agent, capturing waste, and drying the instrument’s U-Tube with the on-board air pump. Using VideoView […]
Refractometer Calibration, How to Perform a Single & 2 Point Calibration
Refractometer Calibration, How to Perform a Single & 2 Point Calibration This video demonstrates how to perform a Single & Two Point Calibration on a Rudolph J157 Refractometer. The J157 is designed as a high accuracy refractometer for food and water based chemical applications. The instrument can read to ±0.00004 RI / ±0.03 BRIX making […]
Wide Range Refractometer – Rudolph J357
J357 Wide Range Refractometer Refractometer, Rudolph Research’s J357, part of the Rudolph Refractometer Product Line, Designed as a research quality instrument the Rudolph J357 Digital, Bench-top Refractometer has the highest performance of any refractometer in the Rudolph range. This instrument offers the same extra wide RI measurement range as our chemical industry refractometer models combined […]
Refractometers, Measuring Volatile Samples
Refractometer Measurements with Volatile Samples – Video This video demonstrates Rudolph’s Automated Volatile Sample Measurement system using Distilled Water & Glycerin. The measurements were accurately recorded over a 24 hour period reflecting constant measurements & thus reproducibility was proved. Measurement Results: Distilled Water RI : 1.3330 Glycerin RI : 1.4741 For more information about Rudolph […]
Refractometer, Rudolph’s J47 & J57 Automatic Refractometers
Food, Beverage, Chemical Refractometer, Rudolph’s J47 and J57 This video demonstrates Rudolph’s J47 and J57 Automatic food, beverage, chemical Refractometers. It provides an overview of features, specifications and applications and compares Rudolph’s J47 to other ABBE style Refractometers.
