Programmable Touch-screen Rotary Viscometer (Rheometer) | ViscoQT 1700/S and 1800/S Series

Rotary viscometers are commonly used to measure the viscosity value (also known as apparent viscosity) of Newtonian or Non-Newtonian materials under specific rotational speeds and spindle configurations. However, for high-polymer materials such as coatings, inks, adhesives, etc., including resins, emulsions, and similar substances, they often exhibit Non-Newtonian behavior.

These materials display varying rheological properties depending on shear rate (related to rotational speed and spindle shape). To compare these properties across different materials, a common method used in coatings and related industries is to measure their shear thinning (Thix index) and thixotropy.

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Shear thinning is indicated by a decrease in viscosity with increasing rotational speed, while thixotropy is indicated by comparing viscosities at increasing and decreasing rotational speeds, viscosity recovery, or viscosities before and after high shear. The behavior of viscosity measured after high shear approximates the characteristics of the material soon after application, simulating paint application conditions.

Qualitest offers various types of rheometers tailored to different material rheological properties. Operators can customize measurement programs according to specific requirements, such as automatically adjusting shear rate, and utilize professional software to analyze and understand the materials' rheological properties, including simulations under different application conditions.

Programmable Touch-screen Rotary Viscometer (Rheometer) | ViscoQT 1700/S and 1800/S Series Features:

• Display of sample shear rate and shear stress
• Continuous viscosity testing with sound alarms for measurements beyond the range
• 7-inch high-definition touch screen for easy operation and rich information display
• Anti-static shell and PC material lifting pole for durability and safety
• Built-in temperature probe RTD for accurate temperature measurement
• ARM chip processor for enhanced data processing speed
• Newly designed durable small axles for reliability
• Gigabit Ethernet interface for reliable and quick data transfer
• USB interface for saving measurements to external disk U, with options for single-point, continuous, and timed saving
• RS 232 interface for easy printing of measurement data with minimal effort
• User calibration with password-protected temperature and viscosity correction factors, allowing modifications based on reliable and accurate data
• Free conversion between various viscosity units, with automatic conversion of dynamic viscosity to kinematic viscosity
• Linear calibration by a computer
• AC Power adapter 100V-240V for good anti-interference performance
• Detailed operation instructions included
• Optional professional ViscoQT-ACC 1608 analysis software program for displaying sample rheological curves.

Programmable Touch-screen Rotary Viscometer (Rheometer) | ViscoQT 1700/S and 1800/S Series Technical Specifications:

Ordering Information  →  Parameters  ↓	ViscoQT 1700/S	ViscoQT 1800/S
Measurement Range          (mPa.s)	ViscoQT 1700/1S:1-2M ViscoQT 1700/2S:100-13M ViscoQT 1700/3S:200-26M ViscoQT 1700/4S:800-104M	ViscoQT 1800/1S: 1-6M ViscoQT 1800/2S: 100-40M ViscoQT 1800/3S: 200-80M ViscoQT 1800/4S: 800-320M
R.P.M (per min)	0.3-100	0.1-250
Rotors	ViscoQT 1700（8）/1 : four rotors---No.1,   No.2, No.3, No.4  (#0 is optional) ViscoQT 1700（8）/2、ViscoQT 1700（8）/3、ViscoQT 1700（8）/4: six rotors---    No.2, No.3, No.4, No.5, No.6, No.7  (No.0 and No.1 for option)
Measurement Accuracy	±1.0% (of the full range)
Repeatability	±0.5%  (of the full range)
Voltage	Power Adapter （Input：110/220 V；50 /60 Hz； Output：15V；1.2A)
Optional Accessories	ViscoQT-ACC 1601---Low viscosity adapter （No.0   rotor） ViscoQT-ACC 1602---Small sample adapter（comes   with NO.21、NO.27、NO.28、NO.29, and the max. measure range would be reduced to one-sixth） ViscoQT-ACC 1603---Mini single color printer ViscoQT-ACC 1608---Viscometer data collection and analyses software
(M=1million)

Optional Accessories:

• THD Series - Low-Temperature Thermostatic Bath
• ViscoQT-ACC 1600 - Standard Oil (500ml)
• ViscoQT-ACC 1601 - Low Viscosity Adapter (Equipped with the 0th rotor, capable of measuring 1.0 mPa.s samples)
• ViscoQT-ACC 1602 - Small Sample Adapter (Specifically designed for customers with small samples, requiring quantities as small as 5 to 18ml. The sample cup is easily cleaned, installed, removed, and observed. Accurate data on shear rate and shear stress can be obtained for detailed analysis of sample fluid characteristics. Disposable sample cups are available.)
• ViscoQT-ACC 1603 - Mini Single Color Printer
• ViscoQT-ACC 1604 - RTD Thermometer (-20°C to 120°C)
• ViscoQT-ACC 1605 - Thermoses (Designed to accurately measure the viscosity of heated oil, paraffin, asphalt emulsions, medicine, high polymers, and similar liquid materials at high temperatures. Allows temperature control of samples within a range of room temperature to +300°C. Programmable intelligent thermostat ensures temperature fluctuation within 0.1°C. Sample dosage is as small as 10ml, and disposable sample cups are available. Compatible with the standard SC4 spindle for easy use.)
• ViscoQT-ACC 1608 – For ViscoQT 1700-1800 Series Viscometer Data Collection and Programmed Analysis Software (Automates data collection and testing, generating viscometer graphs and recording measurement data each time. Allows comparison of up to 10 historical data sets, outputs Excel documents, enables programmable downloading, offline operation, data analysis, chart drawing, and printing.)

 

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