Rheometer R/S-CPS+

for quality control, process engineering and product design

The Cone-Plate Rheometer R/S-CPS+ is a rotational viscometer for quality control, process engineering and product design.

A high developed dynamic measuring drive systems 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 RHEO3000)

Technical Data

torque range	0.05 to 50 mNm
torque resolution	0.01 mNm
angle resolution	15.7 µrad
speed range	0.1 to 1,000 min^-1
viscosity range	depending from measuring systems^*
shear rate	depending from measuring systems^*
shear stress	depending from measuring systems^*
accuracy	± 1% of maximum value
temperature range	-20°C to +250°C (liquid temperation by circulator) -20°C to +180°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
^* 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

software package RHEO3000
(PC minimum configuration - Pentium, 500 MHz, 128 MB RAM, Windows 2000/XP/Vista)
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)

	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