Differential Reservoir Viscometer

4-capillary differential viscosity detector suitable for GPC/SEC/GFC or FFF

The DVD1260 is a 4-capillary viscosity detector with reservoir technique for the measurement of intrinsic viscosity, Mark-Houwink coefficients and molar masses based on universal calibration. Low-noise electronics combined with high-sensitivity  pressure transducers of highest chemical resistance results in save operation, excellent peak shapes and high signal linearity. The use of reservoirs avoids viscometer modifications when the column setup changes and decreases the analysis time to 50% compared to viscometers with hold-up columns.

The small footprint allows integration into any GPC/SEC/GFC or FFF system. In combination with an RI and a light scatering detector the viscometer can be used for triple detection and triple plus detection. The detector is available as analytical and micro detector.

Universal applicability


Differential Reservoir GPC/SEC/GFC/FFF Viscometer

  • 4-capillary reservoir viscosity detector for the simultaneous measurement of delta pressure and inlet pressure.
  • fast-responding Hastelloy pressure transducers without hysteresis and electronic pressure transducer protection.
  • optimized for analytical or micro operation and flow rates.
  • 50% reduced run time compared to hold-up column viscometers.
  • plug&play for all setups independent on the number of columns.

Connect to any LC

Connect to any LC

The DVD1260 can be connected to virtually any LC.

Operation connected to a liquid chromatography system requires WinGPC UniChrom software for detector control, data acquisition and analysis. WinGPC can manage a variety of LC systems directly.

Systems without ChromPilot 3rd Party Control can be connected using the DVD1260 input options:

  • 2 analog ins to connect any concetration detector
  • digital inject in to connect the autosampler or manual injector

Software Options

Chromatography Data System with Viscometry Data Analysis

Don't sacrifice flexibility, user-friendliness and compliance just to add viscometry to your lab. Protect your investments and ensure integrated solutions - now and in future.

When connecting to an LC use WinGPC UniChrom MultiWorkstation or Client/Server to control the detector and the LC, acquire data and allow for comprehensive manual or automated analysis with flexible result output. Software wizards and guided setups support users and facilitate learning.

  • Profit from the convenient, secure and continuously improved features of a world wide used Chromatography Data System equipped with universal calibration option, specific viscometer data analysis and test routines.
  • Automatically generate ultra-fast results including result uncertainty even within an active sequence.
  • Or analyze samples in depth using WinGPC's advanced features and sophisticated tools.   
  • Transfer all results to a LIMS, create extensive reports and provide clear, scalable figures for presentations - all within one software package.


  DVD1260 MDS390 Viscometer
Detector type on-line viscometer with reservoir on-line viscometer with hold-up columns
Detector signals differential pressure, dP
inlet pressure, iP
Signal range dP: -1.6-10 kPa
iP: 0-150
Temperature ambient - 80°C 30°C - 60°C
Temperature stability > 0.01°C ± 0.2° C
pH 2-11 2-10
  • upgrade with multi angle or
    single angle multicolor LS,
    different enclosures
  • µVersion available
  • upgrade with dual-angle LS and/or RI in same enclosure
  • upgrade with dual-angle LS and/or RI, enclosure expansion


Learn More

Webinar GPC/SEC- Viscometry

Theoretical background, advantages and limitations? Learn more in this webcast.

e-book: GPC/SEC Detection

(Absolute) molar masses, structures, branching, composition - request our e-book on GPC/SEC detection.

WinGPC Application Notes

WinGPC Application Notes explain important software features. Request the latest viscometry application notes.


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