Microwave digestion instrument adopts microwave energy heating method with frequency of 2450MHZ. Under the action of it, the reaction material in the digestion system rotates, forming intense friction and collision, so that the temperature of the reaction material rises rapidly, and the instrument also uses the way of digestion in the sealed state.

Technical features:
1. Under the control of microcomputer, the water sample is titrated with ammonium ferrous sulfate to calculate the COD Cr value by using a certain amount of reducing substances in the oxidized water sample and an excessive amount of ferrous iron as indicator in a strong acidic solution. Colorimetry can also be used.
2, can digest a variety of substances: mainly introduces the chemical oxygen demand (CODcr), total phosphorus (TP), total nitrogen (TN) digestion and testing methods, saving time, cost, simple and convenient operation.

Applicable environmental conditions:
1. Ambient temperature: 5-40 ℃;
2. Ambient humidity: ≤ 90% RH;
3. Pressure range: 86Kpa-106Kpa.
Working conditions:
1. The instrument should work on A.C(220±22)V (50±1)Hz power supply.
2, working system mode: continuous.
Technical characteristics:
1. Digestion time: 5-16min;
2. Microwave operating frequency: 2450MHz;
3. Microwave output power: 900W;
4. Exterior dimension: 461 × 397 × 273mm;