Diesse Chorus - Replacement of the Waste Tank; Sanitation

Manuale operativo CHORUS
Rev. 0 del 06/2012 43
3.6.3 R EPLACEMENT OF THE WASTE TANK
If the instrument’s liquid waste system is connected to the general waste disposal system, no operation
is necessary. If on the other hand, the waste liquid is collected in a tank, this must be emptied
periodically, or in each case when the instrument indicates the tank is full.
To perform this operation:
- wear the PPE;
- switch the instrument off or verify that no cycle or other hydraulic operations are ongoing;
- disconnect the drainage tubes from the tank and position in a safe place, possibly
disconnect them also from the instrument;
- bring the tank to the place designated for emptying;
- unscrew the cap of the waste tank and empty it. If possible wash and disinfect the tank;
- replace the full tank with an empty one, or empty the tank, wash it and disinfect it following
the security procedures defined by the laboratory;
- screw the cap onto the empty tank;
- reconnect the tubes to the tank and to the instrument, when previously disconnected.
ATTENTION
It is not advised, although it is possible, to disconnect the waste tank during a cycle, because this
increases the risk of potentially infectious liquid being spilled and consequently increases the risk of
biological contamination.
3.6.4 S ANITATION
To guarantee correct function of the hydraulic circuit, every 7 days the instrument alerts the user, by
displaying a warning window which shows the need to execute a sanitation cycle, which includes
washing all the parts that came into contact with a whole or diluted solution with an antibacterial
solution supplied by DIESSE Diagnostica Senese.
The goal of this procedure is to prevent mold growing in the hydraulic circuit and has to be executed
once a week.
It is possible to start the sanitation procedure by pressing the appropriate command in the check
window (see 4.11).
This cycle is also necessary
- before accessing the internal parts of the instrument, by authorized personnel;
- when the instrument is expected to remain inactive for a long period of time.
The procedure consists of the following passes:
• request to substitute the washing solution with the sanitation one
• washing the circuit with the sanitation solution;
• substituting the sanitation tank with the washing solution one;
• waiting two hours to allow the hygienizing liquid to eliminate the micro-organisms present in the
tubing;
• automatic start of washing the circuit with the washing solution to remove the antibacterial
solution from the circuit.