GDND-800 Freezing Point Tester
1. Transformer oil freezing point tester has the characteristics of exquisite structural design and unique manufacturing process. It conforms to GB/T 3535 and GB/T510 standards and is used to determine the pour point of petroleum products.
2. This instrument adopts compressor refrigeration technology to save energy, simple operation and long service life. Its main technical indicators such as cooling rate and cooling capacity have surpassed similar foreign products.
1. The instrument should be placed on a flat and stable workbench, and air convection should be minimized in the environment.
2. This product may involve flammable materials when used. It is not allowed to have an open flame (or a device that produces spark) close to it during operation.
3. When the instrument is not in use, it should be placed in a dry and ventilated place.
4. The power supply is single-phase three-wire system and must have a good grounding terminal.
5. The environmental conditions for the instrument use are: ambient temperature 5~30℃, humidity ≤85%, working power supply AC220V±10%, 50Hz.
| Refrigerant | R13 R502 |
| Cooling time | ≤100min (ambient temperature ≤30℃) |
| Stop interval | >30min |
| Stirring motor power | 22W * 2 |
| Stirring motor allows temperature rise | 80℃ |
| Power | 800W |
| Voltage | 220V±10%, 50Hz±1Hz |
| Temperature control range | room temperature ~ -70℃ |
| Temperature control accuracy | ±0.5℃ |
| Temperature display | LED |
| Temperature sensor | Pt100 |
| Timer | LED |
