Boltek Lightning/2000 - Manual (Page 83)

R E A L - T I M E L I G H T N I N G D E T E C T I O N
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A new record value is denoted by swapping the colors
of the counter and its background.
CG Flash Rate Counter
The CG flash rate counter, shown with and without an alert bar.
Default yellow alert trigger level: 20
Default red alert trigger level: 100
Record kept: Yes
The CG flash rate counter shows the number of cloud-
to-ground flashes recorded in the last minute. A CG
flash is what is ordinarily thought of as a lightning bolt.
Each flash is composed of one or more (typically 3 to
10) strokes. Each of these strokes can be detected
by the lightning detector if the flash occurs closely
enough to the detector. For distant flashes, it is
normal to detect only the strongest stroke of the flash.
A new record value is denoted by swapping the colors
of the counter and the background.
This counter is not used with the LD-250.
Positive CG Flash Rate Counter
The +CG flash rate counter, shown with and without alert bars.
Default yellow alert trigger level: 25
Default red alert trigger level: 100