11
2.9 Access codes
When the system is ready for operation, the MAIN MENU cannot
be accessed without a code request.
Two different access authorisations/security levels are assigned
for all submenus. Each code automatically enables the levels
below it too.
•
User code:
By default, all user menus can initially be
accessed without a code request.
(When the menu selection has been confirmed using
[OK], a
code request is not displayed.)
Once the user has entered his/her own user code (MAIN
MENU - SETUP - CHANGE CODE), the code request
appears before any user submenu can be accessed. The
modified user code must only allow access for trained users
with appropriate technical training and experience. Access
is
enabled for 60 minutes after entry.
•
Service code:
This code is reserved for trained Grundfos
Alldos service engineers. Access is enabled for 30 minutes
after entry. The service code is necessary for commissioning.
See section
.
Symbol for continuous controller.
Box with plotted line.
The height of the line is
proportional to the actuating
variable (ClO
2
dosing volume):
Line not visible:
Actuating
variable = 0 %.
Line fills the entire box:
Actuating
variable = 100 %.
4
Symbol
Symbol for continuous controller
stop and external controller stop
due to an alarm.
White box with a diagonal line
through it.
Symbol for external disturbance
value input (input value of the
disturbance variable, for water
flow meter: pulses, for flow
meter: mA).
Box with plotted triangle.
The black fill is proportional to
the flow (the greater the fill, the
greater the flow, 0-100 %).
(Only visible if proportional or
combined controller is
configured.)
5
Symbol
Message in the
display level
Meaning of the message
Summary of Contents for Oxiperm Pro OCD-162-10
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