This kind of graphite automatic digester is adopted with the economic high purity graphite heating method and the anti-oxidation processing. Comparing to that of the aluminum block, the price of the graphite automatic digestor is more acceptable to most of the laboratories.
Features
- Large LCD screen is equipped for display, and the touch-button is anticorrosive..
- Intellectual temperature control, time control, and curve heating function (double-mode, three-stage heating) ensure that this digester is suitable for a wide range of digestion samples.
- Large screen, with switching display function, displays the working condition (real-time temperature and remaining heating time) in real time and makes it convenient for observation.
- Accurate PID outlet temperature control and safe over temperature protection are specially designed.
- Alarm function of over voltage, over current, overheating, over temperature, and auto malfunction alarm function are available.
- Intellectual failure detection (for the heating unit, temperature control unit, temperature sensor and etc. ) is available and the detection result will be output in English words.
- Heat insulation methods: Ceramic insulation and air duct insulation.
- The outer surface is painted with teflon coating to prevent the apparatus from being corroded by the acid gas or liquid generated during the digestion.
- Heating method: Infrared radiation and graphite conduction heating.
- The exhaust manifolds should be connected to the water aspirator supplied, or to a suitable scrubber.
Specifications
| Processing sample quantity per batch | 20 |
|---|---|
| Digestion tube specification | ≥300 ml |
| sample amount for digestion(solid) | ≤6g per sample |
| sample amount for digestion(liquid) | ≤25 ml per sample |
| Temperature range | Room temperature to 450°C |
| Over temperature protection | Available |
| Intellectual failure detection | Available |
| Temperature stability | ±1°C |
| Power | 3000W |
Application fields
The digestion of the samples of nitrogen and protein; COD digestion; The digestion of total phosphorus, arsenic and etc; The digestion of heavy metal (such as lead, copper, zinc, tin and etc. )