Lauda Scientific

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 (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 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 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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Viscocool 6

LAUDA Scientific‘s Viscocool 6 Viscothermostat is the perfect selection for R&D applications close to ambient temperature. With a  footprint of only 206 x 415 mm and an integrated thermoelectric unit it provides cooling without any additional devices.

The device is equipped with a pressure pump. The pump provides a uniform flow through the bath vessel and also good transfer of the heat and cooling output to the bath medium. Using the operating menu of the Viscocool 6, one of six flow-rate levels can be selected for the pump. LAUDA Scientific viscothermostats provide accurate tempering for all glass capillary viscometers. Various products are available to support different system configurations where international norm standards require a precise temperature stability (ASTM 0445, ISO 3105 and DIN 51562 from now on DIN 53000).

Viscocool 6 Technical Features:

• Polycarbonate bath vessel
• 15-90°C working temperature range
• Temperature stability of ± 0.01 K
• Max amount of measuring stands is 1
• Maz amount manual thermostat positions is 2
• 2.6kW heater power
• 6.5l bath volume
• 230 V, 50/60 Hz (2)
• Dimensions (W x D x H) : 206 x 415 x 530 mm

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Viscotemp 15 / 24

LAUDA Scientific’s Viscotemp 15 & 24 provide accurate tempering for all glass capillary viscometers. Various products are available to support different system configurations where international norm standards require a precise temperature stability (ASTM 0445, ISO 3105 and DIN 51562 from now on DIN 53000).

The Viscotemp 15 / 24 provide a high-quality stainless steel bath and glass window and can be used in the most common temperature range from 0 up to 105 °C. The well-arranged single-chamber system with optional background lighting allows a crystal-clear view and can be easily cleaned. Typical applications for that products are the determination of the viscosity index of motor oils or the solution viscosity of plastics

The Viscotemp 15 can be used with up to four manual measuring stations or two automatic measuring stands, iVisc or S5 (PVS). Viscotemp 24 offers the capacity to work with maximum seven viscometers or up to four automatic measuring stands. On both versions the VRM 4 cleaning module can be installed. The corrosion-resistant thermostating bath allow the handling with aggressive samples, e.g. polyamides dissolved in sulfuric acid and is approved for the usage of suitable silicon oils (e.g. Therm 180) as heat transfer liquid.

Viscotemp 15 & 24 Special Features:

• Corrosion-resistant stainless steel bath with 19 to 27 liter bath volumes
• For up to 4 automatic or 7 manual measuring stations
• Clear design makes quick cleaning possible
• Variopump with six pumping levels and pump flow distribution for perfect homogeneity
• Display with standards-compliant resolution of 0.01 K, intuitive operation via cursor and soft-keys

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Viscotemp Pro 15 / 24 / 36

LAUDA Scientific’s Viscotemp Pro Series of viscothermostats provides accurate tempering for all glass capillary viscometers. Various products are available to support different system configurations where international norm standards require a precise temperature stability (ASTM 0445, ISO 3105 and DIN 51562 from now on DIN 53000).

LAUDA Scientific Viscotemp Pro viscothermostats provide an outstanding temperature stability and homogeneity over the complete temperature range for all typical viscosity applications. As such, they are ideal for use with the fully automated PVS-S5 or iVisc viscometer and they are mandatory for the use with the VAS autosampler systems. Thanks to the double-chamber principle, a constant liquid level in the measuring room is guaranteed – even when changing the temperatures.

The special Viscotemp Pro L models are equipped with five layers of insulating glass. By connecting a PRO circulation thermostat RP 250 or RP 290, they are suited for low-temperature measurements down to -40 or -60 °C.

Viscotemp Pro Special Features:

• Corrosion-resistant stainless steel bath with 15, 24 or 36 liter bath volume
• Double-chamber system for constant liquid level in the measuring chamber of bath
• Multi-glazing with optional heating avoids fogged up glass panes
• For up to 6 automatic or 9 manual measuring stations
• Integrated heat exchanger for counter-cooling, can be combined with LAUDA circulation thermostats
• High control precision thanks to adaptive PID regulation
• Optional external sensor controls the temperature at the measuring location
• Integration of magnetic stirrers and combination with VAS systems possible

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TD5 Tensiometer

LAUDA Scientific‘s compact and precise TD5 tensiometer is the ideal instrument for your research, quality control, and product development. With the TD5, you can measure not only standard methods such as the Du-Noüy ring or Wilhelmy plate method for measuring surface and interfacial tension in liquids to characterize surfactant solutions, oils, and other liquids, but also drop adhesion force and density – all in a very compact device that does not require the entire laboratory bench. Thanks to the user-friendly Surface.Meter software, you have the ability to fully control the measurement and monitor the raw data in real-time, so you can rely on the results at any time. One highlight of our TD5 is the unique drop adhesion measurement, which allows you to directly measure the interactions between liquid and solid. With the TD5, you get one of the most compact tensiometers for research purposes on the market. Precise data in a compact format.

TD5 Special Features:

• Extremely compact research tensiometer
• Surface/Interfacial tension measurement with full control
• Powerful Surface.Meter software
• Advanced analytical methods like drop adhesion force tests

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LSA 60 Surface Analyser

LAUDA Scientific‘s LSA 60 is a robust and precise instrument for contact angle measurements and for extremely accurate determination of surface and interfacial tension as well as the surface free energy. It represents a budget-friendly entry-level device while featuring high-end accuracy. Its large and easy to load sample stage provides a precise z-axis for easy handling. Equipped with a micrometer-driven manual dispensing unit it can also be fitted with versatile automatic dosing systems as an option.

LSA 60 Special Features:

• Compact size which requires only small bench space
• Very easy handling with exchangeable dosing system
• Two axis sample platform for exact positioning
• Powerful algorithms enable precise drop analysis
• Expandable with automated dosing systems and tilting table modules

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LSA 100 Surface Analyser

LAUDA Scientific‘s LSA 100 is one of the most versatile and flexible devices on the market. Thanks to the numerous precise adjusting axes and their wide ranges as well as available expansion functionalities / modules, which are of great importance for challenging applications. The extremely versatile measuring software Surface.Meter is included as a standard as well as the software module for the determination of surface free energy. Representing the mid-size version of the LSA family, the LSA 100 is even more expandable and customizable with a wide range of dosing systems, sample stages and other accessories.

LSA 100 Special Features:

• Wide range of drop calculation methods for the contact angle, also including the unique TrueDrop method
• Powerful fully automatic surface tension measurement
• Full support of CMC measurements, surface rheology and drop volume tensiometry
• Up to two different dosing systems integrated (optional non-contact dosing systems, Duo drop dosing picolitre dosing and other modules.
• Analysis of hydrophobic properties with tilting stage, retention force balance and drop adhesion force measurements

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