10.2.5 Block 4: Filling the flow kit
Next create a block for filling the flow kit, including the air trap, with liquid. This is done
by pumping liquid through the flow path until a stable flow is achieved, or until a time-
out (a maximum time) is reached.
ActionStep
Create a block named MyFillFlowKit and set its base to Time.1
Add the instruction WatchPar_Flow_FT141 (in group Alarms&Mon), with
parameters Delta_Peak and Delta_Base both set to 2.5 l/h. Since the test
criterion used is based on flow stability, this sets an acceptable noise level
for flow .
2
Insert the instruction Man_Flow (in group Pump), at time 0.00. The flow is
set to 30%. The Man_Flow instruction will start pumping liquid through the
flow path at a steady rate.
3
Define a Hold_Until instruction (in group Watch) at time 0.10. Set the Signal
parameter to Flow_FT141 (refers to the flow meter), set the Test criterion to
Stable_Baseline, and set Minutes to 0.5 (which means that the flow must
remain stable for 0.5 minutes in order for the test criterion to be fulfilled).
4
Finally, set the Timeout to 5 minutes, and insert the instruction into the block.
158 ÄKTA ready Operating Instructions 28960345 AD
10 Creating a method
10.2 An example of using the Method Editor
10.2.5 Block 4: Filling the flow kit
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