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Thermo Fisher Scientific
User Guide STP420D/STP420ES
introduction
Protocols
Protocols are key to the successful and efficient use of the STP420. The
STP420 has a predefined protocol list, which you can change to suit
your needs.
Refer to “Appendix F Preferred Protocols and Best Practices”, before you
start using the STP420.
A protocol consists of a sequence of one or more steps, each of which
treats the tissue specimens with one specified reagent.
The sequence of protocol steps is determined by the tissue specimen
processing you want. You can include as many steps as are necessary in
any given protocol.
You can store a variety of different protocols in the instrument, for both
the rotary chamber and the biopsy chamber, depending on the different
processing you want to carry out.
Note!
Number of protocols: Generally, the number of possible protocols and
protocol steps you can store is limited only by the storage capacity of the
built-in hard disk.
Protocols are normally designed to run only for the defined processing
time, plus the necessary additional times for filling and draining
reagents in the chambers, heating, and pressure build-up.
However, specimen processing is usually carried out over night. In these
cases, you are advised not to store the specimens in the hot paraffin all
night, but use the extra time for additional fixation of the specimens.
For these cases, you can define a fixed end time at which the protocol
will finish. You can define a ‘wait’ step in the protocol, for example, in
the formalin step, and utilize extra time to ensure that the last protocol
step finishes at the programmed end time.
For details about executing predefined protocols, see Section 3-5
Starting a Protocol.
For details of the types of protocol steps available, and how to create a
protocol, see Section 3-7 Editing and Creating Protocols.
Protocol timing
1-10 Protocols