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Rheometer
RC20-CPS
for quality
control, process engineering and product design
The
Cone-Plate Rheometer RC20-CPS is a rotational viscometer for quality control,
process engineering and product design.
A high developed dynamic measuring drive system enables rotational tests with
Controlled Shear Stress (CSS) and Controlled Shear Rate (CSR).
Special Features
microprocessor-controlled
measuring device for mains power operation
torque
overload protection
user-friendly,
dust proof keyboard for manual operation
integrated
alphanumeric display (4-lined) showing optional 4 current parameters (dynamic
viscosity, shear rate, shear stress, rotational speed, torque or temperature)
RAM data
buffering, storage of data (incl. data and measuring-count) for maximum 10
experiments with up to 4,800 measuring values
cone/plate
and plate/plate measuring systems (DIN 53018, see table)
sample
temperation by liquid circulator, Peltier heating, or electrical heating
PC control
including data analysis (software package RHEO2000)
Technical Data
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torque
range
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0.05 to
50 mNm
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torque
resolution
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0.01 mNm
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angle
resolution*
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15.7 µrad
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speed
range*
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0.01 to
1000 min-1
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viscosity
range
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depending from
measuring systeme**
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shear
rate
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depending from
measuring systeme**
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shear
stress
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depending from
measuring systeme**
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accuracy
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± 1% of
maximum value
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temperature
range
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-20°C to
+250°C (liquid temperation by circulator)
-20°C to +135°C (Peltier heating)
+40°C to +250°C (electrical heating)
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temperature
sensor
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Pt100 1/3
DIN
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power
supply
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100 to
240 V alternating current / 20 W
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* high resolution option
** see table
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Experiments
single
point viscosity detection (CSR, CSS)
shear rate
steps (CSR)
flow curve
(CSR, CSS)
determination
of yield stress (CSS)
viscosity-time-experiment
(CSR)
creep test
(CSS)
Measuring Parameters
dynamic
viscosity
shear rate
shear
stress
rotational
speed
torque
temperature
measuring
time
strain
Additional Equipment
PC (minimum
configuration - Pentium II, 400 MHz, 64 MB RAM, Windows 95)
software
package RHEO2000
graphic
printer/plotter
liquid
circulator
viscosity
standard or calibration fluid
Measuring systems for DIN 53018
(consisting
of either cone C or plate P, and the temperation device including a basic
plate)
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CONE/PLATE
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measuring
system
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C25-1
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C25-2
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C50-1
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shear
rate range (s-1)
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0...4,800
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0...2,400
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0...4,800
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shear
stress range (Pa)
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0...12,223
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0...12,223
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0...1,527
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viscosity
range (Pas)
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0.3...1,629
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0.5...3,259
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0.03...203
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sample
volume (ml)
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0.08
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0.15
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0.6
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cone or
plate diameters (mm)
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25
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25
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50
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cone
angle (°)
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1
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2
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1
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cone
truncation (µm)
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50
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50
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50
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CONE/PLATE
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measuring
system
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C50-2
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C75-1
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C75-2
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shear
rate range (s-1)
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0...2,400
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0...4,800
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0...2,400
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shear
stress range (Pa)
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0...1,527
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0...452
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0...452
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viscosity
range (Pas)
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0.06...407
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0.009...60
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0.02...120
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sample
volume (ml)
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1.2
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2.0
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3.9
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cone or
plate diameters (mm)
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50
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75
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75
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cone
angle (°)
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2
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1
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2
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cone truncation
(µm)
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50
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50
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50
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PLATE/PLATE
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measuring
system
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P25
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P50
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P75
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shear
rate range (s-1)
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0...1,047
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0...2,094
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0...3,141
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shear
stress range (Pa)
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0...16,297
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0...452
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0...603
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viscosity
range (Pas)
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1.5...9,960
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0.02...120
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0.02...122
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sample
volume (ml)
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0.5
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3.9
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4.5
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cone or
plate diameters (mm)
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25
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50
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75
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optional
manufacturing of 0.4°, 3°, 4°, or other cones
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