A:Product Introduction: ¡¡ DSHD-508 Ash Content Tester is designed and made as per the national standard of People¡¯s Republic of China GB/T508 Test Method for Ash Content of Petroleum Products. The function of DSHD-508 Ash Content Tester is to determine ash content in the petroleum products as per GB/T508. It could not be used to determine ash content in the petroleum products containing ash-forming additives (including additives containing certain phosphorus compounds), lubricating oils containing lead and used engine crankcase oils.

 B: Main technical specifications and parameters:

(1) Resistance furnace
   1. Rated power: 2.5 kW
   2. Power supply: AC220V±10%, 50 Hz
   3. Heating range: ambient temperature¡«1000¡æ
   4. Controlling temperature: 775±25¡æ
   5. Temperature controlling device: thermocouple
   6. Temperature rising time: ≤60 min
   7. Furnace temperature uniformity: ≤15¡æ
   8. Ambient temperature: 5¡æ¡«40¡æ
   9. Relative humidity: ≤80%
  10. Furnace chamber size (mm): 200mm×120mm×80mm (L×W×H)
  (2) Heating plate
   1. Power supply: AC220V±10%, 50Hz
   2. Rated power: 2.5 kW
   3. 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.
   4. Height above sea level at working site: not higher than 1000 meter
   5. Ambient temperature: 5¡æ¡«40¡æ;
   6. Relative humidity: ≤ 80%
   7. Plate size: 450mm×350 mm
  (3) Ceramic crucible
   Size: 50 ml, 100 ml

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