ViscoPakt®-Torque Measurement Stirrers
The ViscoPakt®-rheo model family was developed for applications which demand an exact recording of the torque, viscosity or the dissipated power and a precise maintenance of the rotational speed. In addition, the devices provide increased precision in rotational speed regulation and torque measurement and extended functions.
The Advantages
- System stirrer for automatic laboratory process plant
- Detection of reaction phases
- Recording of stirrer dissipation in the reaction calorimeter
- Measurement of rheological material properties
- Scale-up tests
- Process monitoring
- Powerful and compact
- High measuring accuracy
- High sensitivity
- Robust measuring principle
- Recording of rotational speed and torque
- Large, continuous rotational speed range
- Specifiable re-start response after power failure
- Automatic correction of the zero torque
- Adjustable soft start ramp
- Rotational speed and torque limiting adjustable
- Quick-release chuck
- Silent, smooth running
ViscoPakt®-mini-rheo-35
The ViscoPakt®-mini-rheo-35 is a precision measuring stirrer with an especially compact construction. It is used where high torques must be generated in the narrowest of spaces. This occurs particularly in small reactor systems with a nominal volume of below 500 ml and, at the same time, many connecting pieces as may be used, for example, for parallel syntheses.
The ViscoPakt®-mini-rheo-35 is used, among other situations, in our LabKit™ and MultiLab™ parallel reactor systems.
| Maximum torque | 35 Ncm |
|---|---|
| Resolution | 0.01 Ncm |
| Reproducibility | 0.5 Ncm |
| Minimum rotational speed | 10 rpm |
| Maximum rotational speed | 1,000 rpm |
| Rotational speed uncertainty | 0.1 % |
| Chuck | 1…10 mm |
| Degree of protection for control device | IP20 |
| Degree of protection for drive | IP54 |
| Weight about | 1.5 kg |
| Diameter of motor | 50 mm |
| Length over A. approx. | 330 mm |
| Extension diameter/ length | 13/265 mm |
| Interface Analogue | 0…10 V, 0/4…20 mA, optional RS-232 |
| Scope of delivery | ViscoPakt®-mini-rheo-35 and control unit with 2.3 m connecting cable |
Overview Connection Cables
An overview of available connection cables can be found here.
| Product code | Description |
|---|---|
| IR-VIPA-MINI-RHEO-35 | ViscoPakt®-mini-rheo stirrer drive, 35 Ncm |
| IR-VIPARS | Option RS-232 interface, rotational speed setpoint and actual value, torque actual value |
- Catalogue laboratory apparatus and accessoriesCatalogue excerpt laboratory apparatus and accessories15 MB
Downloads
- Catalogue laboratory apparatus and accessoriesCatalogue excerpt laboratory apparatus and accessories15 MB
ViscoPakt®-rheo
The ViscoPakt®-rheo model series contains a precision torque measuring device. The zero torque which is dependent on the rotational speed is recorded in an automatic calibration process and is used for the correction of the torque signal. It is thus possible to determine the viscosity (by a calibration table) and other rheological parameters online.
Changes in rotational speed caused by load fluctuations are recorded by a digital rotational speed sensor and electronically controlled. The rotational speed can be given via the analogue input or the serial interface. The actual rotational speed and the torque are issued via the analogue outputs and the serial interface.
| Type ViscoPakt®-rheo | -X7 | -16 | -27 | -57 | -110 |
|---|---|---|---|---|---|
| Maximum torque (Ncm) | 7 | 16 | 27 | 57 | 110 |
| Resolution (Ncm) | 0.003 | 0.01 | 0.02 | 0.04 | 0.08 |
| Reproducibility (Ncm) | 0.05 | 0.1 | 0.2 | 0.4 | 0.8 |
| Minimum rotational speed | 40 rpm | ||||
| Maximum rotational speed (rpm) | 3,000 | 2,200 | 2,200 | 2,000 | 2,000 |
| Rotational speed uncertainty | 0.1 % of full range | ||||
| Chuck | 1…10 mm | 1…13 mm | |||
| Degree of protection for control device | IP20 | ||||
| Degree of protection for drive | IP54 | ||||
| Weight approx. (kg) | 0.9 | 1.7 | 2.6 | 3.9 | 6.0 |
| Diameter of motor (mm) | 70 | 45 | 55 | 70 | 83 |
| Length approx. (mm) | 250 | 245 | 250 | 255 | 295 |
| Extension diameter/ length | 16/220 mm | ||||
| Maximum viscosity (mPa∙s) | 5,000 | 6,000 | 10,000 | 40,000 | 70,000 |
| Maximum stirred volume** (l) | 2 | 8 | 15 | 30 | 50 |
| Interface | Analogue 0…10 V, 0…20 mA (alternatively 4…20 mA), optional RS-232 | ||||
| Scope of delivery | ViscoPakt®-rheo and control unit with 2.3 m connecting cable | ||||
Overview Connection Cables
An overview of available connection cables can be found here.
Fixing Element for Mounting ViscoPakt® Stirrers on LabKit™ Aluminium Profiles
Two-sided fixing element for LabKit™ squarer-ended aluminium profiles
Compared with a standard fixing piece with a round bar all axes of the stirrer drive are fixed in place using this element.
IR-VPMONT2: Mounting element for ViscoPakt® IR-VIPARH110-5.8
IR-VPMONT-16: Mounting element for ViscoPakt® IR-VIPARH16
IR-VPMONT-27: Mounting element for ViscoPakt® IR-VIPARH27
IR-VPMONT-57: Mounting element for ViscoPakt® IR-VIPARH57
IR-VPMONT-110: Mounting element for ViscoPakt® IR-VIPARH110 (not suitable for IR-VIPARH110-5.8)
IR-VPMONT-X7: Mounting element for ViscoPakt® IR-VIPARHX7 (Exchange on site not possible)
IR-VPMONT-35: Mounting element for ViscoPakt® IR-VIPARH35 (Exchange on site not possible)
Stirrer Shaft Protection
Half-shell shape, adjustable length 19…30 cm
Product code: IR-VIPARWS
| Product code | Description |
|---|---|
| IR-VIPARHX7 | ViscoPakt®-rheo-X7, 7 Ncm |
| IR-VIPARH16 | ViscoPakt®-rheo-16, 16 Ncm |
| IR-VIPARH27 | ViscoPakt®-rheo-27, 27 Ncm |
| IR-VIPARH57 | ViscoPakt®-rheo-57, 57 Ncm |
| IR-VIPARH110 | ViscoPakt®-rheo-110, 110 Ncm |
| IR-VIPARS | Option RS-232 interface, rotational speed setpoint and actual value, torque actual value |
- Catalogue laboratory apparatus and accessoriesCatalogue excerpt laboratory apparatus and accessories15 MB
Downloads
- Catalogue laboratory apparatus and accessoriesCatalogue excerpt laboratory apparatus and accessories15 MB