Leica Biosystems ASP6025 - Manual (Page 107)

105 Leica ASP6025
5. Operation
Functional description of ethanol rotation
(continued)
Ethanol rotation is performed in two steps:
• In the first step, used ethanol is ejected and the position of the ethanol in the system bottles is changed.
• In the second step, fresh ethanol is added.
Fig. 144
Fig
. 145

Pressing the OK button starts the program.
If CANCEL is pressed, the program is stopped or does not start.
If the operator confirms replacing the ethanol by pressing YES,
in the first program cycle, the used ethanol is pumped out of
system bottle S1 into RTU-bottle D4 and the system bottles
S2 - S6 are rearranged.
This means that the ethanol in system bottle S2 is repositioned
into system bottle S1, from S3 into S2, etc.
If NO (
Fig. 144 ) is pressed, the subsequent program starts
WITHOUT alcohol rotation.

1st step
The ethanol value for replacement is determined with ethanol from system bottle S1. This is where the most frequently used
ethanol is located.
The measurement of all alcohols (ethanol and isopropanol) is carried out automatically during retort cleaning. (In RMS and
concentration mode).
The programmed threshold value initiates the rotation of the ethanols.
If an ethanol value is detected that is below the set threshold value, a screen message to this effect appears, and replacement
is recommended (
Fig. 144 ).
The ASP6025 checks the level status of the reagent bottles being replaced in both steps during the process. In the
event of incorrect operation due to incorrect filling or draining, the corresponding step cannot be carried out. The
software notifies the customer of the situation.