4 Using the control module
Clarity Controls
last column is automatically adjusted; if the percentage of the last
compound is already zero, the value of the currently entered
component is adjusted instead. The flow rate of a compound is
calculated by multiplying the overall flow rate (indicated in the
Flow
column) by the corresponding percentage divided by 100.
Flow [ml/min]
Indicates the overall flow rate through the column. The entered value
applies to the time specified in the corresponding row.
Graph
The graph depicts the percentage of components as a function of time
together with the overall flow rate. Data are taken over from the
Gradient
Table
. Changes effected in this table are immediately reflected in the
graph. Legend in the header of the graph indicates the assignment of
colors to individual components. The assignment is fixed and individual
components are displayed in the graph from bottom to top. The flow rate is
displayed as a black line.
The graph has two vertical axes: the axis on the left refers to the mixing
ratio, the one on the right to the overall flow rate.
Parameters
Standby Flow
Sets the overall flow rate through the column in the
STANDBY
state
reached after the last row of the table has been performed and the
time period defined in the
Time to Standby
field has passed. The
duration of this state is defined by the
Standby Time
item. The ratio of
individual components in the respective
STANDBY
and
IDLE
states is
given by the first row of the
Gradient Table
(the
Initial
row).
Time to Standby [min]
Indicates the time during which the flow rate and mobile phase
composition changes continuously between the last values entered in
the table and the values defined by
Standby Flow
field and the
Initial
row mobile phase composition.
This time is included in the analysis time (the Instrument is in the
CONTROL
state). In case when the
Time to Standby
is zero, there is
step change from flow and components percentage specified on the
last row of gradient table to that specified for
STANDBY
state.
Standby Time [min]
The time during which the flow rate is maintained at
Standby Flow
.
This time is included in the analysis time (the Instrument is in the
CONTROL
state).
Initial - Standby
The
Shimadzu LC-10/20 Pump
control module doesn't support this
option.
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