KD Scientific Adagio Control Software for Legato Series Manual - Manual (Page 33)

Adagio User Manual © 2010 KD Scientific
5619-001 Rev B
33
Steps within a loop cannot be edited while the loop is
enabled. To edit a step, disable the loop, make the
desired changes and then re-enable the loop.
4.2.4.10. Protecting the pump against forced flow rates
Adagio does not consider the maximum forces applicable to each
of the pump models. You must configure the pumps to prevent
them from going beyond their maximum forces through their own
user interfaces.
4.2.4.11. Steps approaching zero and steps changing flow direction
Steps that approach a flow rate of zero (steps which have a start or
end flow equal to zero) have to consider that there is a minimum flow rate
that the pump model can not handle. Therefore, if a step approaches zero
flow, the ramp will not actually finish at zero flow but at the minimum
possible flow rate and then drop to zero. This applies from positive and
negative to zero and from zero to positive or negative.
When a step is defined to start or end with a flow rate lower than the
minimum allowed by the pump model, the expected flow evolution line will
be automatically recalculated to start / end exactly with that minimum flow
rate but keeping the defined duration.
4.2.4.12. Expected flow vs. real flow
As stated before, the Method Editor tool allows you to define the
expected flow rates that the pump should apply throughout the method.
However, the particular pump model for which the method was
designed (and thus in which the method is intended to be executed) will
determine the real flow that will be finally applied.
When a method is running, Adagio is responsible for translating the
expected flow rates for the particular pump model in which it is executed
so that the differences between expected flow rates and real flow rates
are minimized.
Negative flow (Widthraw)
Positive flow (Infuse)
Minimum
flow
rate
Expected flow
Real flow