A:Product Introduction: 　 DSHD-30011 Carbon Residue Tester is designed according industry standard of People’s Republic of China SH/T0170 Test Method for Carbon Residue (Electric Furnace Method). Its function is to determine the carbon residue of lubricant oil, heavy liquids fuels and other petroleum products as per SH/T0170. B: Main technical specifications and parameters: 1. Relative humidity: ≤85% 2. Heating mode: electric furnace 3. Total power consumption: ≤2000 W 4. Power supply: AC 220 V±10%, 50 Hz 5. Temperature controlling accuracy: ±5 ℃ 6. Steel bath type: One furnace with four holes 7. Ambient temperature: room temperature～35 ℃ 8. Temperature controlling range: 0℃～520 ℃ 9. Heating power: three groups, 300 W + 600 W + 1000 W C:More Carbon Residue Tester: DSHD-268 Carbon Residue Tester (Conradson Method) DSHD-17144 Carbon Residue Tester(Micro-method) DSHD-30011 Carbon Residue Tester(Electric Furnace Method)