ATI Technologies SmartTachSmartTach, User Manual

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TROUBLESHOOTING
Page 6-2 SmartTach Operating Manual
General Information
This section is intended to describe problems which may be commonly
encountered and solutions to eliminate those problems. In general, if all
of the directions and precautions in this manual are properly followed,
operation of the SmartTach should be trouble-free.
There may be certain cases when operation is not as expected. This does
not necessarily mean that the SmartTach is defective. In most cases, the
source of the problem will be either an improper configuration,
installation, or defective sensors/cables. The internal circuitry of the
SmartTach is fairly “bullet-proof” and should be suspected only if every
other possible fault is eliminated.
We recommend that this entire section be read at least once, regardless
of the problems symptoms. Problems such as erratic operation can be
caused by a number of different faults and are the most difficult to track.
Care in installation and configuration is the best method for avoiding
problems.
Prior to tracking sensor/wiring/installation problems, we recommend that
ALL of the configuration parameters be double-checked to insure that
they are correctly set. This will solve 90% of the problems.
If assistance from Accurate Technologies Inc. is desired to help solve a
problem, prior to calling please have ready all information pertaining to
the specific installation, including a list of the current settings of ALL
SmartTach configuration parameters.
Common Problems
Display does Not Light
This indicates that the SmartTach is not properly powered or the display
has been turned off. Try pressing the ENTER key on the SmartTach to turn
the display on. If the display does not light then check that the PWR input
is connected to a 10-30 VDC power source providing a minimum power
output of 10W. First, be sure that the power source is providing the
necessary power. Second, check to be sure that the PWR connector is
firmly plugged into the SmartTach and correct polarity is observed. Third,
check that the power cable attached to the connector is firmly clamped
by the screws in the top of the connector. If this connection is loose,