Racepak IQ3 Drag Dash, Руководство по установке, Страница: 15 / 63

IQ3 Drag Dash Installation Manual
15
Power Supply and Grounding
The IQ3 Drag Dash should be connected to a battery source that can supply a constant 12-18
volts. In vehicles that utilize a master power switch, it recommended to connect to the master
power switch. This not only insures the IQ3 Drag Dash will be powered when the vehicle is in
use, it also insures power will be disconnected in the event of an emergency.
A good ground is very important to the function of the IQ3 Drag Dash. Insure there is no type of
paint, rust or any other type of material that could prevent proper grounding. Boats often
present unique grounding problems. If necessary, provide an isolated power and ground as
faulty grounds will create corrupt data.
Warning: Do not attempt to connect or disconnect any IQ3 Drag Dash item, with the
power switched on. This action could result in damage to the IQ3 Drag Dash.
Engine RPM Signal
Requirements: 5-18V, 50% duty cycle, square wave output. This signal is typically obtained from
the tach signal output of an aftermarket ignition box. Racepak also offers a GMR Inductive RPM
Pickup (Racepak PN: 680-SN-GMR) which can be attached to the +12V coil power on coilpak or
coil on plug ignition systems. For early model points/distributor ignition systems, MSD offers a
tach signal generator, PN 8913 that can be spliced into the 12V power to the coil.
Warning: Do not connect the tach input wire directly to any part of the ignition coil.
Doing so will result in damage to the logger.
MicroSD Memory Card
The IQ3 Drag Dash is equipped with a microSD memory card. This card is located in the face of
the IQ3 Drag Dash, between the shift lights. The card may be removed by simply pressing on
the card, which will slightly eject the card from the dash face. When inserting the card, insure it
firmly “clicks” into place. The edge of the card should slightly protrude from the dash face,
when seated. The IQ3 Drag Dash supports standard microSD or micoSDHC cards up to 16GB