Viscograph-E
AACC Method 61-01
ICC Standard 169
Viscograph-E
The Viscograph®-E is the standard instrument worldwide for measuring the viscosity of starch and of products containing starch...
Measure native starch (wheat, corn, potato, rice starch) reliably and reproducibly and get a complete profile of the rheological properties of your products:
• gelatinization and gelification properties of starch and products containing starch
• hot and cold viscosity
• stability of thickening agents or binders
• acid stability of starch
• extrudate testing
• measurement of industrial starch
• measurement of liquids, suspensions, pastes, etc.
Technical features:
• automatic test procedure
• storage of any number of temperature programs
• heating/cooling rates of 0.5...3°C/min (in certain sections up to 5°C/min)
• electronic speed control
• low-deflection torque measurement
• automatic adaptation of the diagram scaling to the viscosity measured
• comfortable measuring and evaluation software for all current Windows versions
Test Procedure
The sample is heated within a rotating bowl and cooled down again, both under controlled conditions. In conjunction with the Windows software, the integrated, self-optimizing temperature controller allows programming and storage of any temperature profiles with heating/
cooling rates of 0.5...3°C/min.
A measuring sensor reaching into the sample is deflected according to the viscosity of the sample in the bowl. This deflection is measured as torque.
For testing special temperature-stable starch types, a special pressure chamber will allow the evalution of higher temperatures (> 100°C).
Software
Get reliable and reproducible data about the rheological properties of your material - thick or thin boiling, different thickening capacities, gelification, high or low hot and cold viscosity, stability, etc...
• Beginning of gelatinization • Gelatinization maximum
• Viscosity during holding • Viscosity at the end of cooling
User-friendly 32-bit software under Windows evaluates all test data fully automatically and reproducibly and allows real multi-tasking. Enter your test parameters from your computer keyboard and store them as a "method" - a single mouse click opens your test routine at any time.
Tests can now be run in an administrator or operator mode. Define and assign authorities in the administrator mode or create and save automatic test procedures including a description of the test procedure.
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