Monarch Instrument Nova-Strobe PBL - Manual (Page 13)

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3.1.5 Fixed Increment N Adjustment
The strobe fl ash rate can be incremented or decremented
in fi xed increments. To do this, adjust the fl ash rate to
the required adjustment value, say 300, which we will
refer to as N. Then press the ±N button shown right (Note: – N is
the displayed value at the time the button is pressed). The display
will show ALT in the bottom left hand corner which indicates
the knob is in the ALTernate function mode. Turning the knob
counterclockwise will increase the fl ash rate by N (300 in this
example) for each click or turning it clockwise will decrease the
fl ash rate by N. It is not possible to decrement the fl ash rate below
30 FPM.
3.2 Adjusting the Flash Duration (Brightness)
The fl ash duration, the width of the LED fl ash, can be adjusted by the
user to be a preset number of degrees of rotation (DEGS) or a fi xed with
in microseconds (uSEC). The result is a more or less bright image at
the expense of less or more image blur. Read the section on Brightness
- Section 1.2.
3.2.1 Flash Duration - Degrees
To view or adjust the fl ash duration press the BRIGHT
button shown on the right. The display will show the
current fl ash duration in degrees of rotation – note
that there are 360° in a complete rotation. The
degrees shown is the amount of rotation visible
during the fl ash. The higher the degrees the
brighter the image and the more apparent the
blur. Use the knob to increase or decrease the fl ash duration in
degrees of rotation. Adjusting the degrees will cause this to be the
controlling parameter for pulse width. As the fl ash rate increases
or decreases the strobe will adjust the fl ash duration to keep it at
1.2
DEGS