53
When a change is made to the infusion system (e.g. addition or removal of a
pump to a SpaceStation, a change of infusion rate, a bolus application) the
OccluGuard and pressure leap/drop are temporarily set to ‘pending’ ( ) to
allow the system to reach a hydrostatic balance, and so prevent false alarms.
5.3 Data Lock
The data lock function protects the device against unauthorized access. It is rec-
ommended to adapt the four digit code for level 1 and 2 from the default set-
ting (9119), using the service program. There are three security
levels.
Level 1:
A modification of values as well as a bolus application are not possible but a
change of the disposable can be conducted. It is possible to navigate through all
menus and status data can be checked. Starting, interrupting and switching the
pump off is possible.
Level 2:
This level has the same performance characteristic as described under level 1
and additional will not allow the change of disposable. In order to prevent a
data lock alarm the correct code must be entered within 20 sec after the pump
was stopped. Changing the disposable and switching the pump off is only
possible after the code was entered.
Level 3:
This level will allow starting and stopping the pump as well as switching off.
The code for this level may be different for each drug and is defined in the drug
list. A change of the syringe, however, is possible by using the code defined for
the other levels. An overview about the differences between the levels 1, 2 and
3 is given by the following table.
Event
Change of disposable
Level 1 Level 2 Level 3
Change of parameters
O OO
O
Stop of infusion
%
Switching off pump / Standby
O O
PCA bolus with pump-based bolus button
O O
Customisable screen
O O
Acoustic feedback of demanded boli
O
O
Indicates denied PCA boli
O
Start of infusion
O with code for
level 1/2
= possible | O = not possible | %= followed by standby-alarm
Chapter 5
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