Manual

GEO3.5 MANUAL 33
TIMING MENU
These parameters all relate to the control of the solenoid valve.
DWELL PARAMETER
The DWELL parameter sets the amount of time that the solenoid is energized and therefore the amount of gas that is
released with each shot of the GEO3.5. Setting this parameter too low will result in low velocity shots and/or excessive shot
to shot velocity uctuations. Setting the parameter too high will simply waste gas and make the GEO3.5 louder. The DWELL
can be set between 0.0 and 30.0 milliseconds. The factory default setting can normally be reduced after a few thousand
shots as the GEO3.5 ‘beds-in’.
FSD COMP PARAMETER
“First shot drop off” is a reduction in velocity of the rst shot red after an extended period of not ring and is caused by the
stiction between dynamic o-rings and the surfaces that they are in contact with. In order to compensate for rst shot drop-off
this parameter can be set to add extra time to the DWELL parameter for the rst shot. This parameter can be set between
0.0 and 5.0 milliseconds.
FSD DLY PARAMETER
The time that has to elapse before the FSD COMP is applied to a shot following a previous shot. This parameter can be set
between 00:00 and 04:00 minutes.