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Capillary viscometer for fully automatic viscosity measurement and evaluation

Compact and easy to operate.
The fully automatic, space-saving iVisc is easy to operate and suitable for getting started in professional viscometry. Simply insert the USB cable into the PC or netbook, start the software and the capillary viscometer is ready to go. The state-of-the-art measuring instrument offers a Windows user interface which could not have a more intuitive or easy design.

As such, the system condition, the ongoing measuring or pause times as well as the measuring data in table form can be seen at a glance. The capillary data can be transferred into the measuring window via drag & drop. Using “pull down” menus, important application-specific evaluations and all common approximation formulas for intrinsic viscosities (IV values) can be specified as a measure for polymer chain lengths. By taking the necessary corrections into account, the absolute kinematic viscosities and, if the density is known, the dynamic viscosities can be evaluated from the precisely measured processing times.

Application examples

  • Determining viscosity numbers for quality assurance in the plastics industry
  • Absolute viscosities in the petroleum industry for motor oil, lubricant, fuel, kerosene, additives, etc.
  • Determining chain length of pharmaceutical and biological macro-molecules

LAUDA Measuring Instruments brochureDownload a PDF
of our Measuring Instruments brochure:

LAUDA Measuring Instruments Brochure (8.2 MB)

  The iVisc advantages Your benefits
  • Full control of the measuring process
  • Pumps, valves and light sensors integrated into the iVisc
  • Time-saving thanks to automation
  • Minimum space requirement
  • No external devices necessary
  • Intelligent and self-adaptive NIR meniscus scanning
  • Exact time measurement even with colored and dark liquids
  • Intuitive software:
    1. Identification of the capillary type
    2. Selection of desired measurements
    3. “START”
  • Simple measurement progression
  • Virtually impossible to make operating errors
  • Tabular view of the measurement results
  • Results protocol via standard printer
  • Comprehensive calculation algorithms already integrated
  • Determining kinematic, dynamic, relative, inherent, and reduced viscosity
  • Intrinsic viscosity according to Billmeyer, Huggins, Maron, Martin, Schulz-Blaschke, and Solomon-Ciuta
  • One cable for power supply and data transmission
  • Parallel operation of two iVisc units possible with one PC or netbook
  • The fastest device installation using plug & play technology
  • No power adapter necessary
  • Energy-saving
  • Double sample throughput

iVisc Capillary viscometer

The compact, intelligent viscosity measuring stand is designed for a large spectrum of standard glass capillary viscometers (e.g. Ubbelohde, Cannon-Fenske, and Micro-Ostwald). In a suitable LAUDA thermostat (e.g. LAUDA ET 15 S, Viscocool 6 or Viscotemp) and 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.

Additional accessories:
Viscometer frames · adapter for Micro-Ubbelohde · utilizable glass capillary viscometer: Ubbelohde, Cannon-Fenske, Micro-Ubbelohde, Micro-Ostwald
Computer on request

We had the user in mind ...

The full control of the measuring process including the pumps and pressure compensation valves, the highly flexible meniscus sensing using NIR light sensor, and the precise measurement of the flow time of the sample using the measuring capillary are all done in the head of the measuring stand. Standard-compliant measurements of the K-value, intrinsic, reduced, and inherent viscosity are made possible “out-of-thebox”. Complex measuring applications can also be easily established and configured.

The most common formulas and calculations are included in the software. The clear software interface considerably simplifies measuring praxis. After the simple insertion of a filled glass capillary, a software program coordinates all of the steps necessary to perform the measurement and it then executes the evaluation. Here, the precise measuring of the flow time is based on intelligent, self-adaptive NIR meniscus sensing.

iVisc Software

Step 1:
Identification of the capillary type

Step 2:
Selection of desired measurements

Step 3:

Step 4:
Issue of the measurement protocol

Special features

  • “Plug & play” device installation
  • Connection of up to two iVisc units per computer
  • Intuitive operation using software start/stop button on the device
  • Exact and „intelligent“ optical meniscus sensing for problematic liquids
  • Control and power supply via computer with USB possible (PC, netbook, etc.)
  • Operating status display via LEDs
  • Just one cable (USB) for control and power supply
  • Just 1 watt of power consumption
  • Measurement temperature from -20 to 150 °C

iVisc Capillary viscometer

Technical features iVisc
Sample temperature range °C -20...150
Ambient temperature °C 10...45
Measurement range Time s 0...9,999.99
Recommended measurement range for flow timing s 30…1,000
Viscosity range mm2/s 0.3...30,000
Resolution of time measurement s 0.01
Error in time measurement ppm 1
Meniscus detection Optical (near infrared)
Total power consumption W 1
Dimensions (WxDxH) mm 95x96x425
Power supply USB
Weight, net kg 1.4
Cat. No. LMV 830