* Rhometer

 

 
   

Rheometer RC20-CPS

     
     
 

 

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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 systeme 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  
  
torque range 0.05 to 50 mNm
torque resolution 0.01 mNm
angle resolution * 15.7 μrad
speed range * 0.01 to 1000 min -1
viscosity range depending from measuring systeme **
shear rate depending from measuring systeme **
shear stress depending from measuring systeme **
accuracy ± 1% of maximum value
temperature range -20°C to +250°C (liquid temperation by circulator)
-20°C to +135°C (Peltier heating)
+40°C to +250°C (electrical heating)
temperature sensor Pt100 1/3 DIN
power supply 100 to 240 V alternating current / 20 W
* high resolution option
** see table
 
    
 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
 
    
 Additional equipment 
 

(consisting of either cone C or plate P, and the temperation device including a basic plate)

 
  
CONE/PLATE
measuring system C25-1 C25-2 C50-1
shear rate range (s -1 ) 0...4,800 0...2,400 0...4,800
shear stress range (Pa) 0...12,223 0...12,223 0...1,527
viscosity range (Pas) 0.3...1,629 0.5...3,259 0.03...203
sample volume (ml) 0.08 0.15 0.6
cone or plate diameters (mm) 25 25 50
cone angle (°) 1 2 1
cone truncation (μm) 50 50 50

CONE/PLATE
measuring system C50-2 C75-1 C75-2
shear rate range (s -1 ) 0...2,400 0...4,800 0...2,400
shear stress range (Pa) 0...1,527 0...452 0...452
viscosity range (Pas) 0.06...407 0.009...60 0.02...120
sample volume (ml) 1.2 2.0 3.9
cone or plate diameters (mm) 50 75 75
cone angle (°) 2 1 2
cone truncation (μm) 50 50 50

PLATE/PLATE
measuring system P25 P50 P75
shear rate range (s -1 ) 0...1,047 0...2,094 0...3,141
shear stress range (Pa) 0...16,297 0...452 0...603
viscosity range (Pas) 1.5...9,960 0.02...120 0.02...122
sample volume (ml) 0.5 3.9 4.5
cone or plate diameters (mm) 25 50 75

optional manufacturing of 0.4°, 3°, 4°, or other cones