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12.1.8 Unlocking the system:
An eighth press on the menu-key in this menu brings you to the "Code" menu. To prevent unau-
thorized access to the settings in the system control, changes to the settings can only be carried
out when a correct code from the Assignment Table that follows is entered and confirmed with
the Enter-key. The unlocking remains active for 5 minutes. Each access via the code is typed out
by the printer (RS 232) complete with date, time and abbreviated code number ("Code 0001"
corresponds to code 150, "Code 0002" to code 250 etc.).
The display shows:
Code numbers can be assigned to individual persons according to the Assignment
Table that follows on page 25.
Remove that page from the Operating Instructions and store it where it is safe from
unauthorized viewing.
Assignment Table for code numbers that allow the system to
Code no.
Code
Press Enter !
0000
be unlocked
Printer
output
150
0001
250
0002
350
0003
450
0004
550
0005
650
0006
750
0007
850
0008
950
0009
Thermo Scientific Barnstead Pacific RO
Person
Pure water system
27
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