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ND 5790-1 61-830 instructions
A note on setting triggers:
There are 3 programmable swell triggers and 6 programmable sag triggers avail-
able. In many cases that much resolution is not required. Setting triggers to the
same value 'hides' the triggers not needed. For example, if you only want to capture
swells over 120% of nominal voltage and longer than 2 cycles, all 3 swell triggers
would be set the same:
Settings:
Trigger
Magnitude
Duration
SWL1
120%
2 Cycles
SWL2
120%
2 Cycles
SWL3
120%
2 Cycles
Results:
Voltage Event Unit Display
Magnitude Duration
115%
65 Cycles
NONE
125%
3 Cycles
SWL1
If 2 triggers are desired, set the second and 3rd triggers to the same value:
Settings:
Trigger
Magnitude
Duration
SWL1
110%
65 Cycles
SWL2
120%
2 Cycles
SWL3
120%
2 Cycles
Results:
Voltage Event Unit Display
Magnitude Duration
115%
65 Cycles
SWL1
125%
3 Cycles
SWL2
Setting The Time
The time must be set before the first use.
From the Review Screen DOWN ARROW to SETUP and press ENTER to display the
Set Nominal/Standard. RIGHT ARROW to display the Set Time/Date screen.
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Press ENTER while Set Time is highlighted to change the time. UP and DOWN
ARROWS change the hour. Press RIGHT ARROW to activate the minute and second
cells. When all three changes are complete, press ENTER to activate the change
and return to the Set Time/Date menu. Press LEFT ARROW before ENTER to escape
to the Set Time/Date menu without making changes.
Setting the Date/Changing the Date Format
The date is changed in the same method as the time with the additional feature of
being able to change the date format.
Press ENTER when Set Date is highlighted to change the date or format. RIGHT
ARROW to scroll through day, month and year, as well as the format. UP and
DOWN ARROWS alternate format between MM-DD-YY and DD-MM-YY formats.
Press ENTER while the desired format is highlighted to change the way the date is
displayed.
Clearing the Log and Events
Before starting a monitoring session, the LOG count and stored events should be
cleared. From the Set Time/Date menu, RIGHT ARROW to display the Reset/Delete
events menu. This menu gives 2 options; Reset Log or Reset Events.
Reset Log
The Reset Log option will clear the count of cumulative events displayed on the
Review Screen while retaining individual event records. This is useful if the event
records are needed for documentation, and for before and after performance analy-
sis. The Reset Log resets the cumulative count only. The count of individual events
will still be visible.
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