5
Program Digester
A DK6, DK8, DK6/48, DKL8
B DK20/26, DK20, DK42/26, DKL12, DKL20, DKL42/26
When the pump is turned on by the general switch a continuous operation is possible with a sucking capacity which is
selected by the purposely devised knob. The push-button Set located on the front panel allows the choice of two different
time related programs (A or B) with programmed air flows.
The operation of one of the two programs is shown by the lighting of a led.
Time related program A - During the first 10 min. of operation the air flow is 50% of the maximum and then lowers to 25%
Time related program B - During the first 10 min. of operation the air flow is 100% of the maximum and then lowers to 50%
NOTE: times and flows are defined on the basis of sample and reagents amounts described by the methods of VELP
Scientifica manuals and for the introduction of digestion test tubes in the heating block when the digestion temperature is
almost reached.
4. Maintenance
In compliance with the product guarantee law, repairs to our units must be carried out in our factory, unless previously
agreed otherwise with local distributors. The instrument must be transported in its original packaging and any indications
present on the original packaging must be followed (e.g. palletized).
• Replace, periodically the tap water in the tank.
• During operation, if necessary, replace the level of water in the tank up to the maximum level and no more to avoid
spillages. A level of water lower than the minimum can compromise pump efficiency.
During long idle periods it is suggested to empty completely the tank and to wash with tap water also the immersed rotating
part. In the case of use for aspiration of fumes deriving from Kjeldahl mineralizations with a connection to fume neutralizer
Scrubber SMS it is suggested to perform this simple maintenance at the end of each working day.
4.1 Cleaning
Disconnect the unit from the power supply and use a cloth dampened with an non-inflammable non-aggressive detergent.
5. Technical data
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