Introduction:
The Apparent viscosity is the ratio of shear stress and shear rate applied to the flowing liquid. It is a measure of the internal friction force when the liquid flows under a certain shear stress. It is an important index of engine oil performance evaluation. The service performance of engine oil can be evaluated by measuring its apparent viscosity under different experimental conditions.
The Cold-Cranking Simulator mainly tests the low temperature dynamic viscosity index of the engine oil at -10C to -35C, and the CCS is fully controlled by the computer and the viscosity result is automatically calculated.
Reference Standards:
1.GB/T6538 Determination of Apparent Viscosity of Engine Oils Using the Cold-Cranking Simulator
2.ASTM D2602 Standard Test Method for Apparent Viscosity of Engine Oils at Low Temperature Using the Cold- Cranking Simulator
3.ASTM D5293 Standard Test Method for Apparent Viscosity of Engine Oils and Base Stocks Between -10 °C and -35°C Using Cold-Cranking Simulator
Technical Parameters:
Main Features:
1.Rotate speed in the automatic detection, controlling current and reducing human error.
2.Using imported electric motor and having high accuracy.
3.Displaying all working positions on the screen, and connecting printers to print results.
4.After correcting of standard oil, it automatically calculates results.
5.Microprocessor control; Windows operation system; All English interface.
6.Modified rotor, low–torque test mode and high repeatability. Ø Automatically generate calibration curve and the results of viscosity measurements can display directly. 7.Full-automatic control and without human operation on all the tests, and after the end of the experiment, it will automatically stop and heat up.
8.Instruments automatically recommend cryogenic temperature; Rotary encoder detects rotation speed.
9.Viscosity measurement range: 1,500~25,000cp.
10.Ten standard oil results are editable.
11.Equipping with dedicated cryogenic refrigerating machine.
12.Temperature control accuracy reaches 0.02°C.