Leica Biosystems ST4040 - Manual (Page 38)

38 Instruction Manual V 1.4 – 06/2009
6.8.3 Starting the selected program
• With the lid closed, open the ball valve and, if closed as well, open the
water tap.
If not only the ball valve but also the water tap has been closed (-->
e.g. when setting up the instrument), the tap water flow rate has to be
adjusted when starting a program (see also chapter 3.6).
• For that purpose, press the Start/Stop button:
•
The water supply valves are opened.
• The processing mechanism starts.
• Via the ball valve (slowly open or close further) select the appropriate
tap water flow rate (look at the tap water station - see which quantity of
flow looks appropriate).
• The water has to rise inside the tap water station and the water flow
has to be strong enough to wash surplus staining matter from the
specimens.
However, the flow rate must not be too fast, to ensure that the speci-
mens remain firmly attached to the slide surface!
The ball valve is used to adjust the optimum water flow rate with the
water tap fully open.
If there is no significant water pressure variation in your lab and as
long as the number of tap water stations remains unchanged, the set-
ting of the ball valve should not be altered. To start / end your daily
routine, simply open / close the water tap.
6. Operation
Ball valve closed
Ball valve open