Rheometer
Release date: 2022-01-11 Views: 167

Rheometer

 

Instrument composition: 1. Host; 2. Temperature control system; 3. Lifting system; 4. Rotor system; 5. Workstation;
Executive standards: 1. ISO standard; 2. DIN standard; 3. ASTM standard; 4. GB standard, etc.

1. Introduction to the host


host interface

The main function:


The following parameters can be determined:
1. Relative dynamic viscosity (mPa.s)
2. Absolute dynamic viscosity (mPa.s)
3. Stormer viscosity (KU) (optional Stormer rotor is required)
4. Kinematic viscosity (cst)
5. Shear rate
6. Shear stress
7. Yield stress
8. Time
9. Temperature
10. Shear thinning coefficient
11. Rheological curve
12. Thixotropy
13. Temperature-viscosity curve
14. Freezing point temperature
15. Gel time
16. Viscosity-time curve, etc.

 

Sensor Features


With springless electronic sensor
advantage:
1. No wear parts (spring shaft support) longer warranty time.
2. Fast response, suitable for thixotropic samples, can move and stop instantly, suitable for transient and dynamic analysis.
3. Multifunctional
4. Wide range
5. Can be upgraded
6. You can calibrate yourself (no need to return to the factory)
Disadvantages: higher cost than traditional spring sensors

 

Range and Accuracy


1. Torque range: 0.005-30mNm (0.005-0.8 mNm; 0.05-13 mNm, 0.05-30 mNm, this configuration: 0.05-30 mNm);
2. Viscosity range: 1-540,000,000 mPa.s;
3. Repeatability: +/-0.2%;
4. Accuracy: +/-1% (current range);
5. Speed range: 0.1-1500rpm (when software controlled);
6. Single host: 0.3-1500rpm and 0.3-250rpm (stepless speed regulation, speed can be set arbitrarily), this configuration: 0.3-1500rpm;
7. Temperature range: -50~300℃, accuracy: +/-0.2℃


2. Temperature control system


Programmable temperature control system interface

Temperature Control System Technical Specifications


1. Temperature control range: -5~150℃ (this configuration is designed at 18℃)
(Other ranges can be customized according to requirements -20~182℃, the low temperature can reach -20℃ when the room temperature is 3℃, and the high temperature can reach 182℃ when the room temperature is 35℃) or (the other can be customized according to the demand -60-300℃ range The product);
2. High precision: 0.01℃ resolution;
3. Stability: +/-0.05℃;
4. No compressor noise;
5. No water bath is required, the heating and cooling speed is fast, the temperature rises at 25-100°C for about 2 minutes, and the cooling at 100°C-25°C takes about 2 minutes;
6. The 7-inch touch screen can record the temperature control curve, the heating and cooling speed can be programmed, and the 50-segment program control can be selected.


3. Electric lifting system


1. High repeatability automatic positioning device, the rotor is retracted and locked; the stability is greatly improved compared with the previous generation;
2. Optional displacement display function.

 

4. Rotor system


1. Cone plate system
2. Board system
3. Coaxial system
4. Brinell system
5. Anchor system
6. T-rotor system, etc.


5. Computer workstation


working interface

 

Workstation Features


ETT workstation, WIN10 system, (measurable rheological software can be easily and quickly set up, in the program table: fill in the test time and shear rate to quickly program) drive the instrument and receive data, and can set the speed and shear rate arbitrarily for testing :
1. Shear rate-shear stress-viscosity rheological curve;
2. Test thixotropy;
3. The relationship between temperature and viscosity;
4. Viscosity-shear time relationship curve;
5. The rheological curves of different batches of products can be superimposed and compared;
6. Test yield stress and other functions;
7. Generate pdf report to facilitate data storage and data exchange.


6. Advantages of the whole system


1) Safer
1. There is no high temperature external circulating water, which is safer to use and avoids the danger of the circulating water pipe falling off and scalding people;
2. Less noise pollution and safer working environment;
3. Using low-voltage circuit design, electricity is safer.

 

2) More energy efficient
The use of small-volume high-conductivity heating and cooling modules and effective insulation measures can save more than 90% of energy compared to the water bath temperature control method.

 

3) Better to use
1. Quick connection of rotor;
2. The heating and cooling curve can be recorded, and the experiment can be automatically controlled and monitored in real time;
3. Software quick loading method and quick editing and running program;
4. You can calibrate yourself without returning to the factory.

 

4) Save more
1. Sample cost: Small test sample volume: usually 0.03-0.15ml; (depending on the rotor system), a small sample system of 2-25ml can also be selected;
2. Time cost: fast constant temperature and short test time;
3. Labor cost: easy to clean;
4. Maintenance cost: There are no consumables such as springs, supports, shaft tips, etc.,which saves the cost of consumables and the time cost of production delayed by replacing consumables.

 

5) More value added
It has strong expansibility and unlimited appreciation. It can upgrade and test the rotor system infinitely according to needs, and support the development of new rotors.

 

 

Panyi Lliang
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