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Maintenance and Care
E
E
8.2
Performing an SST
All procedures related to the System Suitability Test can be controlled via the
System Suitability Test List
. To
access the list, open the
Functions
menu in the
Control Center
and click on
SST
or directly click on the
SST
button in the
Control Center
.
The
System Suitability Test List
provides an overview of all SST checkpoints and their current status. Valid SST
checkpoints are displayed in black while red indicates an invalid checkpoint. SST checkpoints need to be carried
out at regular intervals, the length of these intervals being specifi ed in the
Days Valid
column. To confi rm a
checkpoint, either manual checks have to be done or measurements need to be carried out.
It is recommended to include confi rmation of checkpoints in the daily/weekly work routine and not to wait
until the validity period of a checkpoint has expired.
8.2.1.
Performing an SST with Measurements
If the SST to be performed requires a measurement or series of measurements, do the following:
1
Select
SST
from the
Functions
menu on the
Control Center
. Alternatively, click on the
SST
button in the
Shortcuts
area of the
Control Center
. The
System Suitability Test List
window will appear.
2
Select the SST checkpoint to be confi rmed by clicking on the
fi eld to the left of the appropriate line.
3
Click on
Run SST
to start the SST procedure. The
System Suitability Test Measurement Run
window will
appear. The parameter settings can be viewed but not altered.
4
Whether or not the Target Value can be changed depends on confi guration. If the
Fixed Target Value
option
is not activated, the user will be able to change the target value. However, if the
Target Value Check
is
activated, the user will have to enter a value within the defi ned limits (
Upper Limit
,
Lower Limit
).
5
Click on
Run
to start the SST measurement. The
Measurement
window will appear and the measurement
will be carried out automatically.
6
Close the
Measurement
window.
7
Repeat measurement as often as required for this checkpoint (see note below).
■
The
Count For Passing
value given in the
System Suitability Test Measurement Run
window indicates
the number of measurements that have to be carried out for a particular checkpoint. The average value will
be calculated from all of the measurements required for a particular SST checkpoint.
The average value of all test measurements needs to be within the acceptance range. The acceptance range is
defi ned by the target value and the offset (in %). In the event of an invalid SST measurement, the system will
immediately be locked. Once in
SSTLock
, the system needs to be unlocked manually by authorized users before
any further SST or other types of measurements can be carried out.
If the average result of all test measurements for an SST checkpoint is valid, the checkpoint will automatically
be displayed in black.
The System Suitability Test (SST)
Performing an SST
Summary of Contents for Cedex HiRes
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