ATI Technologies SmartTachSmartTach, User Manual

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INSTALLATION
Page 2-2 SmartTach Operating Manual
General Information
The SmartTach is a flexible engineering tool designed to be compatible
with practically all automotive-type engines and ignition systems.
Therefore, the specific installation procedure is largely dependent on the
application. The following general steps are typically involved in the
installation and setup of the SmartTach:
#"
Location for SmartTach unit
#"
Location of a DC power source to supply power to the SmartTach
#"
Installation of the wiring cables for the sensors and power supply
#"
Optional connection of the analog output, COM port, and I/O signals
#"
Configuration of the SmartTach system parameters
Placement of The SmartTach Unit
In general, a location should be selected which will not expose the
SmartTach to excessive temperatures or harsh environments. The
maximum recommended ambient temperature around the SmartTach is
50
°
C (122
°
F). The best rule of thumb is the unit should not be installed
anywhere where the temperature would be unbearable for a human.
The unit can be installed in a dynamometer cell provided that it will not
be exposed to excessively high or low temperatures. The temperature
within a dynamometer cell can vary widely depending on the exact
mounting location. The unit should never be mounted near or above the
engine exhaust system or other hot surface. The unit should never be
mounted directly to an engine.
If the unit is to be used for an in-vehicle application, it should be installed
in the passenger compartment or trunk. The unit should never be installed
in the engine compartment or anywhere where it will be exposed to the
outside environment.
Selecting the DC Power Source
The SmartTach requires 10-30 volts DC, 10 watts maximum, for operating
power. This can normally be supplied by the 12 or 24 volt DC power
system of the engine or vehicle. If the engine does not have a DC power
source, an external DC power supply must be used. Any standard 12 volt
DC power supply with 1 amp output capability will be more than
sufficient.