Technical parameters:

1. Measurement range: 0~600 penetrations;

2. Resolution: 0.1 penetrations;

3. Timing selection: 0~60 s; Timing error is less than ±0.1 s;

4. Heating power: 200 W;

5. Temperature controlling accuracy: 25±0.1 ℃; (The ambient temperature should not be higher than 20 ℃);

6. Data storage: 30 groups;

7. Constant temperature bath: made of harden glass;

8. Stirrer: a magnetic stirrer;

9. Standard needle: 2.5±0.05g; as per GB/T4509, and T0604;

10. Up and down holder: it contains fine adjustment and coarse adjustment assembly to let needle tip just contact with sample surface;

11. Power supply: AC 220V±10％, 50 Hz;

12. Memory function: it can save 30 groups of test data;

13. Others: Equipped with light source and a magnifier, so it is convenient to be operated; the thermostatic device in the water bath is optional;