Leica Biosystems ST5020 (Supplement) - Manual (Page 4)

7.2.1 Excessively high water level in the drain pan (continued)
Caution!
If there are specimens in cuvettes 1 and 13, these must be se-
cured by the user and manually removed from the relevant cu-
vettes and out of the instrument as necessary. Depending on the
relevant staining steps at the time of the alarm, the user must
secure the specimen so that no damage to the specimen results
(for example, by transferring them into suitable, compatible
reagents).
Supplement to Chapter "7.2 Troubleshooting", page 78 (continued)
Supplemental sheet for the ST5020 V1.9 Instructions for Use - 12/2012
4 Supplement ST5020 V1.3, RevD - 2/2013
During a period of approximately 10 seconds, monitor to see whether
the water level in the drain pan drops slowly or remains high.
Remove visible blockages to the water drain ( Fig. 2 , 2) and dirt on the
level sensor ( Fig. 2 , 1).
The staining process can go forward if sufficient water drainage is
again ensured.
For this purpose, reinsert cuvettes 1 and 13 in the instrument. The
user must decide at this point whether the specimens taken from
cuvettes 1 and 13 can be reused or whether these should be stained
manually until finished. In this case, the respective programs must
be canceled! ( refer to Chapter 5.8.4 - Quitting programs ).
Restart the staining process by pressing the "CONTINUE" button
( refer also to Chapter 5.8.3 - Interrupting staining ).
After ending all staining programs, switch off the instrument
and clean the water drain and the drain tube. It is recommend-
ed to insert a cleaning tablet with active oxygen into the water
drain, let it work in, and flush with a little water.
Fig. 2
1
2
If the water level remains high due to a complete blockage of the
water drain, the staining process cannot be resumed.