of the instrument the 705 uv digester comprises a wet part and a control unit the wet ... part contains the uv lamp the cooling equipment and the sample holder for 12 ... samples the control unit contains all controls needed for the operation including a ... high-pressure mercury lamp length 10 cm power consumption 500 watts cooling ... combined water-air cooling the fan cools the samples by air circulation in a ... practicallyclosed loop the heated air then gives up its ... to water flowing through the aluminum cylinder the cooling water flow is adjustable ... digestion temperature up to 90 °c lower limit depends on the cooling ... temperature with flow valve for the cooling water measurement of sample temperature ...