Lauda Scientific – Viscometers
Lauda Scientific supply a broad range of viscometers to determine kinematic viscosity. Viscometers are essential instruments for measuring the viscosity of fluids, which is the resistance of a liquid to flow. These devices are crucial in various industries where understanding fluid behavior is vital for quality control and product development. Our range of viscometers includes both rotational and capillary models, each designed to provide precise and reliable measurements.
Rotational viscometers measure viscosity by rotating a spindle in the fluid and determining the resistance to the spindle’s movement. This type of viscometer is ideal for testing non-Newtonian fluids, whose viscosity changes with the rate of shear. Capillary viscometers, on the other hand, measure the time it takes for a fluid to flow through a narrow tube, making them suitable for Newtonian fluids with constant viscosity.
Our range of Lauda Scientific viscometers are equipped with advanced features such as digital displays, programmable settings, and data logging capabilities. Ensuring ease of use and accurate results. They are designed to handle a wide range of viscosities. Whether you require a simple, manual device or a sophisticated, automated system, our viscometers provide the precision and reliability you need for your viscosity measurements. They are available in various configurations to meet specific application needs. Explore our selection today to find the perfect viscometer for your laboratory or industrial application.
FEATURED PRODUCTS
iVisc Viscometer
The Lauda Scientific iVisc Viscometer is a user-friendly system for the measurement of kinematic viscosity. Simple, automatic viscosity determination ...
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iVisc Viscometer 
The Lauda Scientific iVisc Viscometer is a user-friendly system for the measurement of kinematic viscosity. Simple, automatic viscosity determination with the iVisc – ideal for person-independent, GLP-compliant measurement. Simply plug in the USB cable, start the software and the capillary iVisc viscometer is ready for operation.
The compact, intelligent viscosity measuring stand is designed for a large spectrum of standard glass capillary viscometers (e.g. Ubbelohde and Cannon-Fenske).
Placing it in a suitable LAUDA thermostat (e.g. Viscotemp ET, Viscocool 6 or Viscotemp 18) and using the corresponding glass capillary viscometer, the kinematic viscosities in the range from 0.3 to 30,000 mm²/s can be determined. A wide range of applications can be accommodated as a result.
iVisc Viscometer Special Features:
- “Plug & play“ device installation via USB cable
- Connection of up to 8 iVisc units per computer
- Intuitive operation using freely-definable software procedures
- Exact and “intelligent“ optical meniscus sensing for all kinds of liquids
- Operating status display via LEDs
- Just one cable (USB) for control and power supply via Desktop / Tower PC, Laptop, Netbook etc.
- Just 1 watt of power consumption over USB
- Measurement temperature from -20 to 150 °C (with suitable viscobath)
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Autosampler viscosity system VAS 2
The Lauda Scientific VAS-2 system offers the convenience of full automation at the highest sample throughput rate as an add-on to the two-station (V...
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Autosampler viscosity system VAS 2
The Lauda Scientific VAS-2 system offers the convenience of full automation at the highest sample throughput rate as an add-on to the two-station (VAS 15/2 and VAS 24/2) or four-station (VAS 24/4) measuring systems. Depending on the size of the sample bottles, up to 41 samples can be processed in one session. The system is controlled using a special PVS program which permits the safe application-specific allocation of the measurement samples to the matching glass viscometers, e. g. through direct “drag & drop“ from the task list which was generated during sample preparation. The measurement of the samples is done in the S5 measuring stand, while the cleaning of the glass capillary viscometers and dosing syringes is done via suitable VRM modules.
VAS-2 Special Features:
- Retrofittable automatic multi-station viscosity measuring system
- Up to four stations (VAS 24/4) for the highest possible sample throughput
- Easy to program sample processing and fast sample switching possible
- Assignment of processing priorities possible
- Sample-specific applications can be defined (e.g. kinematic and relative viscosity, IV and K-values)
- Direct glass viscometer sample injection without contamination at the tubing
- Optional rinsing with two solvents or with next sample
- Automatic software-controlled sample locks
Accessories:
- Suitable viscothermostat: Proline PV(L) 15 or 24
- Required number and type of capillaries
- Required number and type of VRM modules
- Required number and type automatic transfer locks with connection sets
- Sample flasks and screwing caps
- Sealing rings
- Aluminum plates
- Insert filters
- Sample preparation sets
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Measuring Stand S5
The Measuring Stand S5 is the measuring part of the Lauda Scientific PVS system. Its head is comprised of the opto-electronic meniscus detectors as we...
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Measuring Stand S5
The Measuring Stand S5 is the measuring part of the Lauda Scientific PVS system. Its head is comprised of the opto-electronic meniscus detectors as well as the entire control of the measuring process including miniature pump and valves.
The accuracy and resolution of the light sensor measurement system is among the best of its class. The robust micro-pump for pushing the sample up into the measuring ball as well as the chemical-resistant valves in the head of the stand allows reliable and continuous operation.
Measuring Stand S5 Special Features:
- Completely micro-processor controlled for a highly precise time measurement
- Adaptive infrared (NIR) detection
- Short tubing to the viscometer
- Electrical connections only
- For (Micro-) Ubbelohde, Cannon-Fenske-Routine and Micro-Ostwald capillaries
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VRM Cleaning Module
The VRM cleaning module enables the fully automatic cleaning and drying of the viscometers, preventing the user of getting in direct contact with thos...
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VRM Cleaning Module
The VRM cleaning module enables the fully automatic cleaning and drying of the viscometers, preventing the user of getting in direct contact with those harmful substances. The analysis of many polymers requires the use of hazardous solvents such as phenol / dichlorbenzene (e.g. for PET), metacresol or concentrated sulfuric acid (e.g. for PA).
Depending on the configuration, one or two viscometers can be connected and two different cleaning liquids can be set separately. The VRM 4 HT series is designed to handle even very hot samples of up to 160 °C or highly viscous samples with 1,000 mm²/s. The glass viscometers are cleaned by using cleaning solvents and dried with a volatile solvent and ambient air.
The VRM 4 S enables cleaning even with concentrated sulfuric acid.
VRM Cleaning Module Special Features:
- Automatic (online) rinsing of the viscometer
- Inert and corrosion-free for all standard solvents
- Individual specification of cleaning procedures using PC software
- No external connections necessary
- Two different rinsing agents (the first for cleaning, the second for drying)
- VRM 4 for use with most common solvents, VRM 4 S with resistance to sulfuric acid, VRM 4 HT for high temperatures and high viscosity (external suction pump VRP (LMRZ809) necessary)
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