Operating Instructions

7
String and Shot Navigation
Each time the ProChrono Digital successfully detects a shot, it’s velocity
is stored at the end of the currently selected string. This causes the number
of shot velocities in the string to increase by 1. The currently selected
string holds a maximum of 99 shot velocities.
The Pro Chrono Digital can store up to 9 strings of 99 velocities each and
retain them in non-volatile memory even if you turn the chronograph off
and remove the battery. You can shoot and the chronograph will record
your velocities for later.
Pushbutton Controls
String Change
When the ProChrono Digital is rst turned on, it automatically positions itself
at the end of shot string 1 and displays the most recent shot velocity.
By pressing the “String Change” button, the user can sequentially select
each one of the 9 string memories into which the unit will place the shot
velocities as they are detected. When shot string 9 is selected, pressing
the “String Change” button repositions the unit to the last velocity of shot
string 1.
Review Shots and Statistics for a String
The “Review” button will cause the ProChrono Digital to display the
previously red shot velocity within the current string. On each press of this
button, the previous shot velocity will be displayed, until the user reaches
the rst shot in the string. At this point, pressing the “Review” button
again causes the display to begin showing the statistics. The display will
cycle through High Velocity, Low Velocity, Average Velocity, Extreme
Spread, and Standard Deviation. Finally, pressing it again will reposition
the display to show the last recorded shot velocity in the string.