Capillary viscometer for fully automatic viscosity measurement and evaluation 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 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 sys- tem 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 win- dow via drag & drop. Using „pull down“ menus, important application-specific evaluations and all common approximation formulas for intrin- sic viscosities (IV values) can be specified as a measure for polymer chain lengths. By taking the necessary corrections into account, the ab- solute kinematic viscosities and, if the density is known, the dynamic viscosities can be eva- luated from the precisely measured processing times. Compact and easy to operate 24 LAUDA iVisc
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Capillary viscometer for fully automatic viscosity measurement and evaluation
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
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 sys-tem 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 win-dow via drag & drop. Using „pull down“ menus, important application-specific evaluations and all common approximation formulas for intrin-sic viscosities (IV values) can be specified as a measure for polymer chain lengths. By taking the necessary corrections into account, the ab-solute kinematic viscosities and, if the density is known, the dynamic viscosities can be eva-luated from the precisely measured processing times.
Determining kinematic, dynamic, relative, inherent, and reduced viscosity
Intrinsic viscosity according to Billmeyer, Huggins, Maron, Martin, Schulz-Blaschke, and Solomon-Ciuta
Intelligent and self-adaptive NIR meniscus scanning
Exact time measurement even with colored and dark liquids
Full control of the measuring process
Pumps, valves and light sensors inte- grated into the iVisc
Time-saving thanks to automation
Minimum space requirement No external devices necessary
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.
Capillary viscometer iVisc
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
LAUDA iViscAp
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Additional accessories (see also page 35):Viscometer frames · adapter for Micro-Ubbelohde · utilizable glass capillary viscometer: Ubbelohde, Cannon-Fenske, Micro-Ubbelohde, Micro-Ostwald
Computer on request
Technical features iViscSample temperature range °C -20...150
Ambient temperature °C 10...45
Measurement range Time s 0...9,999.99
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
Technical features iViscSample temperature range °C -20...150
The full control of the measuring process including the pumps and pressure compensation valves, the highly flexible meniscus sensing
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-the-box“. Complex measuring applications can also be easily established and configured.
The most common formulas and calculations are included in the software.
coordinates all of the steps necessary to perform the measurement and it
is based on intelligent, self-adaptive NIR meniscus sensing.
Step 1:
Step 2: Selection of desired measurements
Step 3: „Start“
Step 4: Issue of the measurement protocol
Integrated glass viscometer database Display of the current measuring and pause times Software clearly designed for a single display