Summary
  The instrument is designed and made as per the Industrial Standard of People’s Republic of China SH/T0090-1991(2000) Standard Test Method for Freezing Point of Engine Coolant. It can be used to test freezing point of engine coolants and condensation liquids. 

I.Main technical features 
1.It adopts dewar and can realize the test process of sample observation.It is clear to read.
2.It adopts the refrigeration compressor from Germany. The temperature of cold bath can reach to -70℃with the cascade
   technology.
3.PID temperature control technology, stable temperature control and the accuracy is ±0.1℃.
4.Advanced electric stirring .No noise and the fault rate is low.
5.It adopts single chip controlling technology.It can finish all of the test and detection process automatically.
6.It adopts touch screen,detection system with high accuracy and good repeatability. Easy to operate.

The instrument’s best feature: compact structure,double hole determination;The whole process can test automatically,touch screen and easy to operate,high accuracy and good repeatability.

II. Main technical specifications
1. Power supply: AC 220 V±10%, 50 Hz;
2. Working bath: double dewar.
3. Freezing point range:-54℃～2℃. 
4. Cold bath measurement temperature: -100℃～50℃
5. Sample measurement temperature: -100℃～50℃
6. Temperature controlling accuracy: ±0.1℃
7. Refrigerator system:cascade imported refrigerator compressor 
8. The power of the refrigeration: 800W
9. The heating power: 400W
10. Condensation liquids stirring: electric stirring.the power is 10W,1200r/min.
11. Sample stirring: mechanical stirring is 60 r/min.
12. Ambient temperature: ≤（25～35）℃.
13. Relative humidity: ≤80%
14. Maximum power consumption: 2000 W
15.Dimension: 760mm×460mm×630mm

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