Table of Contents
Advertisement
I.
INTRODUCTION
The RST Rheometer is a rotational, controlled-stress rheometer used in quality control, product
development and research. The measuring drive developed for this instrument utilizes a high-precision
dynamic drive system with optical encoder for absolute position measurement of spindle deflection.
There are two basic methods of measurement available with the RST Rheometer:
•
Rotational measurement under controlled shear rate
•
Rotational measurement under controlled shear stress
The RST Rheometer has all the functionality of a standard Brookfield rotational viscometer, performing
rotational tests with pre-set speed or shear rate. The RST Rheometer is powerful for its additional ability
to perform tests with a pre-set torque or shear stress and measure the resulting shear deformation of the
test substance via angular deflection of the measuring element.
The RST Rheometer's unique controlled stress capabilities can be used for experiments such as the
precise measurement of the yield point of a test material without a need to shear the substance or the
measurement of creep behavior of a material and its recovery after shearing.
In addition, the RST Rheometer is equipped with a powerful motor with a usable torque range of 0.01 to
100 milli-Newton-meters. As a result, the RST Rheometer is appropriate for rheological measurements
over a wide range of test material viscosities.
The RST Rheometer has the following features of performance:
•
Digital control of rotational speed, shear rate, torque or shear stress
•
Pre-designed measurement programs for analysis of viscosity flow curves, creep and recovery
behavior, yield stress, and thixotropic properties
•
Automatic adjustment of control parameters during measurement
•
Direct indication of measured and calculated values of speed, shear rate, torque, shear stress,
viscosity, temperature, and time
•
Graphical display of measured results in real time
•
Internal storage of data including test parameters, measured values, and calculated values
•
User interface via touch screen display
•
Quick-connect coupling system for easy spindle attachment
•
Barcode reader for automatic spindle recognition
•
USB port for connection to printer, computer or USB flash drive
•
Serial interface (RS232-C) for connection to a computer
•
Operation in standalone mode via touch screen display or with a computer system running
Rheo3000 application software
•
DC power supplied by an AC/DC adapter
Standard delivery of the RST Rheometer includes the following:
•
Assembled RST Rheometer
•
AC/DC adapter and power cord
•
Operating Instructions
•
Certification of Test
•
Brookfield's Rheo3000 Software (30-day trial)
•
USB-RS232 Adapter
•
RS232 Cable
•
PC-USB Cable (A-B)
AMETEK Brookfield
Page 5
Manual No. M14-223-B0818
Advertisement
Table of Contents
