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Thermo Fisher Scientific
User Guide STP420D/STP420ES
4. Insert the appropriate number of cassettes into the chamber and
press
Enter
.
• If you do not press
Enter
within two minutes, the chamber
fills with formalin to preserve the specimens. During a rotation
protocol, the holder rotates, but the program does not start and
the device emits an audible alarm. The program does not start,
and an audible alarm sounds.
Note!
If no declared reagents, such as formalin or fixatives are used, the
reagent can be filled in the first step of the protocol.
5. You can press
Cancel
to cancel the protocol. If the protocol is active
the option
Cancel
will change to
Stop
.
• You can press
List
to see the list of defined protocols.
• Select
Edit
to modify the reagents, duration, temperature,
pressure/vacuum, and drain time parameters for protocol steps
that have not been processed yet (see Section 3-7-1 Editing a
protocol).
Note!
Editing protocols: You can only edit a protocol if you have ‘supervisor’ access.
• Press
Open
, to open the chamber. If you want to add more
specimens while a protocol is running, see Section 3-5-2 Adding
more specimens while a protocol is running.
Note!
Opening and cancelling: If you select Open or Cancel, the screen asks a
number of ‘user’ questions before proceeding.
If the reagent is marked as flammable in the reagent setup, the entire reagent
inside the chamber is pumped back to the reagent bottle, and atmospheric
pressure is released, before the chamber is unlocked.
After you have inserted the specimens, touch Continue in the current step.
To show that the protocol has been interrupted, the chamber icon in the
Status window is overlapped by a hand icon (see
Section 1-5-3 Status
window
).
Note!
Open the chamber during pumping: If you press Open, while a reagent is
pumped, the pumping process will be completed first.
6. When the predefined time has elapsed and the last protocol step has
completed, the specimens remain in the last reagent.
routine operations
Starting a Protocol