Information

Rudolph Saccharimeter Models
Solutions for the Sugar Industry: Saccharimeter Selection Guide

Models Spec.Highlights Features & Benefits Compatible Cells for All Models
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  • Purity Software: Optional with PC only
  • Measurement Range: ±259°Z, ±89.9°Arc
  • Accuracy: 0.02°Z
  • Temperature Correction: 20°C, 27.5°C or user defined
  • Built-in Thermo. Probe: Standard
  • Wavelength: 589nm
  • Prism: Glan Thompson Calcite

For 0.02°Z accuracy applications where budget is critical and 589 nm is the only wavelength needed. This instrument is popular for sugar applications that do not require ICUMSA measurement at the 880 nanometer wavelength.
Rudolph does not use plastic polarizers on its less expensive models like other manufacturers do. Rudolph uses only Glan Thompson Calcite polarizers, which cost 10x more than plastic polarizers.

14 style cells:
for manual sampling

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33 style cells: for pour-in sampling. Also available with water jackets for temperature control.

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41T style cell: for pour-in sampling and electronic temperature control.

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32 style cells: for automation.

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  • Purity Software: Optional with PC only
  • Measurement Range: ±259°Z, ±89.9°Arc
  • Accuracy: 0.02°Z
  • Temperature Correction: 20°C, 27.5°C or user defined
  • Built-in Thermo. Probe: Standard
  • Wavelengths: 589nm, 880nm
  • Prism: Glan Thompson Calcite

For sugar mills that want to measure according to the ICUMSA non-lead procedure but whose application does not require the accuracy of Rudolph's more expensive models.
Rudolph does not use plastic polarizers on its less expensive models like other manufacturers do. Rudolph uses only Glan Thompson Calcite polarizers, which cost 10x more than plastic polarizers.

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  • Purity Software: Standard
  • Measurement Range: ±259°Z, ±89.9°Arc
  • Accuracy: 0.01°Z
  • Temperature Correction: 20°C, 27.5°C or user defined
  • Built-in Thermo. Probe: Standard
  • Wavelength: 589nm
  • Prism: Glan Thompson Calcite

For 0.01°Z accuracy sugar testing and payment for countries and applications where lead or other suitable clarifiers are still the norm. This model works at 589 nm and is not compliant with ICUMSA testing at 880 nm.
Rudolph does not use plastic polarizers on its less expensive models like other manufacturers do. Rudolph uses only Glan Thompson Calcite polarizers, which cost 10x more than plastic polarizers.

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  • Purity Software: Standard
  • Measurement Range: ±259°Z, ±89.9°Arc
  • Accuracy: 0.01°Z
  • Temperature Correction: 20°C, 27.5°C or user defined
  • Built-in Thermo. Probe: Standard
  • Wavelengths: Standard - 589nm, 880nm
    Optional - 589nm, 587nm, 880nm, 882nm
  • TempTrol™ Electronic Temperature Control: Optional

This is Rudolph’s most popular saccharimeter; it is used by 98% of all US sugar mills, 100% of all US customs labs and can be found in thousands of sugar mills around the world. It has 0.01 accuracy and is available in both 2 or 4 wavelength versions. TempTrol™ electronic cooling and heating is available as an option.
This option is only suitable for air conditioned modern laboratories.

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  • Purity Software: Standard
  • Measurement Range: ±259°Z, ±89.9°Arc
  • Accuracy: 0.01°Z
  • Temperature Correction: 20°C, 27.5°C
  • Built-in Thermo. Probe: Standard
  • Wavelengths: Standard - 589nm, 880nm
    Optional - 589nm, 587nm, 880nm, 882nm
  • TempTrol™ Electronic Temperature Control: Standard

This is Rudolph’s latest and most advanced model. It was developed and tested in conjunction with labs testing pharmaceutical grade sugars. These labs require precise temperature control yet still want flow through cell type operation. For sugar trade labs and contract work that demands the best and most advanced saccharimeter in the world.
This option is only suitable for air conditioned modern laboratories.

Additional Solutions

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Density Meters »

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Automation Equipment »

Measuring Purity

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Purity software is standard on the Autopol® 589, 880 and 880T, just add a Refractometer and read BRIX, POL and PURITY simultaneously on the Autopol’s® large LCD backlit display. alt 

Sample Specific Programs
The AUTOPOL® models 589, 880 and 880T come with PURITY software and 30 sample specific programs which can be pre-defined for specific juices. This capability is advantageous in factory environments where the same type of samples are repeatedly measured. These programs allow for input parameters such as: multiplier, wavelength, and temperature correction to be prespecified. The PURITY software and a Refractometer also allow dilution on a weight/weight or weight/volume basis which can also be prespecified for each sample name. Each program can be labeled with an alphanumeric and assigned to one of the function keys. The factory operator simply presses the preassigned function key to start measurement.

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Specification

Choosing a Refractometer for Your Purity System
See the Refractometers Section for more details.

Models Specifications Features and Benefits
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  • Measurement Range: 1.33 - 1.53 RI; 0 - 95% Brix
  • Accuracy: 0.00004 RI; 0.03 Brix
  • Electronic Temperature Control: Fixed temperature selection: 20°C and 25°C
The J57HA's simple interface and easy to clean prism surface make it one of our most popular models for the sugar industry. Temperature control to 20°C and 25°C makes it perfect for molasses and high Brix samples. Measurement speed can be improved by using Temperature Correction in conjunction with Temperature Control, allowing measurements to be made accurately almost as soon as the sample is placed on the prism.
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  • Measurement Range: 1.33 - 1.53 RI; 0 - 95% Brix
  • Accuracy: 0.00004 RI; 0.03 Brix
  • Electronic Temperature Control: Flexible temperature selection between 15°C - 50°C

The J157-CC-AM is also quite popular with sugar factory labs. The non contact cover (CC) with built in electronic heating and cooling improves performance in harsh conditions. The Auto Measure (AM) feature allows the closing and opening of the cover to start and stop the measurement eliminating the need for the operator to touch the interface. Very popular for factory environments where air temperature varies dramatically: cold at night and hot during the day.

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  • Measurement Range: 1.33 - 1.53 RI; 0 - 95% Brix
  • Accuracy: 0.00004 RI; 0.03 Brix
  • Electronic Temperature Control:
    KVP: Select any temperature between 15°C - 30°C
    PTW: Select any temperature between 15°C - 40°C

The J157-PTW can be operated as a pour through refractometer when measuring juices and then by loosening one thumb screw and lifting the hinged presser the instrument can be used like a J57. This allows the J157-PTW to measure molasses and other high Brix samples.

The J157-KVP has a vertical prism that allows suspended solids to fall past the prism surface instead of on to the prism. The small funnel volume design with integrated over flow funnel increases sample flushes and reduces spillage. The J157-KVP is often favored in applications with highly turbid low Brix samples.

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