This instrument is used to measure the boundary pumping temperature, (low temperature) yield stress and apparent viscosity of motor vehicle engine oil. The test temperature control range is wide from 80 to -40℃. The test process is all controlled automatically by computer.

1. Applicable standards: ASTM D3829, ASTM D4684

2. Refrigeration method: compressor refrigeration

3. Working temperature: 80～-40℃

4. Temperature control accuracy: ±0.02℃

5. Temperature control method: program temperature control

6. Heating method: electric heating tube heating

7. Detection method: photocell detection

8. Control method: computer automatic control

9. Work unit: 5 units

10. Power of the whole machine: 1200KW

11. Net weight: 20KG

12. Size: 470*320*420mm

1. Temperature range: temperature range 80 to -40℃, temperature control accuracy ±0.02°C;

2. Multi-point temperature correction, high temperature measurement accuracy

3. Semiconductor refrigeration, fast cooling speed and high temperature control accuracy

4. The temperature, cycle and rotor movement are monitored by computer;

5. With delayed start function, it is convenient for users to flexibly control the test process

6. Improved pulley assembly, enhanced pulley stability and sensitivity, photoelectric sensor test;

7. 5 rotors can be detected at the same time, diversity;

8. The rotor has a transparent plexiglass cover for thermal insulation;

9. Microcomputer control, Windows operating system, full English interface;

10. The program automatically controls temperature by nonlinear curve, and measures yield stress and apparent viscosity;

11. The temperature control curve can be edited and drawn in real time according to user requirements;

12. Cleaning temperature control and temperature calibration function;

13. Viscometer constant calibration and storage;

14. The test results can be stored and printed;

15. Calculation and printing function of boundary pumping temperature of "air resistance type" and "flow restricted type";

16. It has the corresponding yield stress, apparent viscosity, and the indicator light for starting the test;

17. Equipped with a developed defrosting system.