Gasboy Fuel Point Ground Antenna - Manual (Page 15)

MDE-4530 Fuel Point Ground Antenna Installation Instructions · November 2005 Page 11
Important Vehicle Parameters – Read Before Proceeding Installation
Figure 3-2 Fueling with Fuel Point Ground Loop Communications
The third area for design consideration is “alignment” of the vehicle’s G-Ring to the ground
antenna. The G-Ring must be within the ground antenna’s ‘effective communications range’
which is a 48 inches diameter circle centered on the ground antenna. For communications to
occur, the driver must stop to fuel with system antenna in proper relationship. In Figure
3-3 ,
refer to dimensions S and SP which represent the amount of misalignment allowed. With side
to-side alignment, S, is at or near zero the vehicle stop point, SP, can vary at least of 2 feet
prior to or after the ground antenna. If S=18 inches, SP is reduced to 21 inches minimum.
Many devices can be incorporated to aid drivers as the pumps are approached. Painted center
lines, reflectors mounted in pavements or traffic control devices can be used to guide or
channel vehicles to the pump to insure antennas are properly aligned.
While fueling, ensure that you do not leave the ignition switch on. This results in some
vehicles emitting electrical noise that may impact the communications range and
interrupt the fueling process.
IMPORTANT INFORMATION