Nautilus NH-1800 Operator's Manual page 126

NH-1800
Fig. 6.54 EDIT MASTER KEY
Function Description
The EDIT MASTER KEY function is used to enter the Master Key.
5)
Verify the Master Key PART B.
6) After inputting the Master Key, the
check sum will be displayed. Press
"ENTER" after confirming the check
sum.
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6. Operator Functions