DSY-134 covers the prediction of the borderline pumping temperature (BPT) of engine oils through the use of a 16 h cooling cycle over the temperature range from -10 °C to −40 °C.

Characteristic:

1. PC controlled, Chinese and English language customized, easy operation and accuracy calculation

2. Function include: temperature calibration, photoelectric encode testing, and viscometer parameter testing

3. Can calculate of air resistance and flow restrained critical pumping temperature

4. Track and record whole test process