| Model | GD-508 Petroleum Product Ash Content Analyzer |
| Resistance furnace | Power supply: AC220V±10%, 50 Hz |
| Rated power: 2.5 kW | |
| Heating range: ambient temperature~1000°C | |
| Controlling temperature: 775±25°C | |
| Temperature controlling device: thermocouple | |
| Temperature rising time: ≤60 min | |
| Furnace temperature uniformity: ≤15°C | |
| Ambient temperature: 5°C~40°C | |
| Relative humidity: ≤80% | |
| Furnace chamber size (mm): 200mm×120mm×80mm (L×W×H) | |
| Heating plate | Power supply: AC220V±10%, 50Hz |
| Rated power: 2.5 kW | |
| Heating mode: by three groups of heater. The power of each group is 0.8 kW. They can be used separately or at the same time. | |
| Height above sea level at working site: not higher than 1000 meter | |
| Ambient temperature: 5°C~40°C | |
| Relative humidity: ≤ 80% | |
| Plate size: 450mm×350 mm | |
| Ceramic crucible | Size: 50 ml, 100 ml |