General Technologies TD101 SmarTach + D: Gas and Diesel Tachometer with Ignition Voltage Tester - Manual (Page 3)

TACHOMETER AND SPARK ANALYZER
OVERVIEW
The SmarTach+ is a professional pocket sized instrument
which combines a tachometer function with the ability to pro-
vide information on the voltages found in the spark-plug wires
of spark ignition motors.
Unlike any other tachometer, the SmarTach+ does not need
contact with any part of the motor or a clear view of rotating
parts, to display the rotational speed of the motor in revo-
lutions per minute (RPM). The SmarTach+ works by sensing
radio transmissions from the motor’s ignition system and ana-
lyzing these signals with a powerful microprocessor to display
the motor’s RPMs digitally on its Liquid Crystal Display screen.
To display motor RPMs just raise the vehicle’s hood and oper-
ate the SmarTach+ while holding it above the ignition wires.
Depending on the position of the ignition wires, it may be pos-
sible to lay down the SmarTach+ on some convenient place
near the motor, for example on top of the air-filter.
To check the voltages in the spark-plug wires, just “hook” each
spark-plug wire in turn using the sensor hook on the end of the
SmarTach’s antenna. Read the approximate kilovolts in each
wire on the digital display screen and look for any unusual volt-
ages.
The “no wires, no clips, no connections” feature of the SmarT-
ach+ allows the technician to obtain RPM readings immediate-
ly, without the need to study where to connect the instrument.
This is a great time saver when dealing with the often con-
gested and inaccessible situations found under the hoods of
newer models.
When checking the performance of the secondary ignition
system with the SmarTach+ it is usually easy to find and hook
spark-plug wires to locate any malfunctioning wires or spark-
plugs. The alternative of removing all spark- plugs and wires
for visual inspection could be very time consuming.
Technical Characteristics:
•
Display: 4-1/2 Digits, w/Low Battery indicator
•
Tachometer Range: 200 to 19,999 RPM ± 0.5%
•
Cylinders Range: 1, 2, 3, 4, 5, 6, 8, 10 and 12.
•
Cycles (Strokes) Range: 2 and 4.
•
Ignition Peak Voltage Range: 0 to 39.9 Kvolt
•
Power supply: 9 Volt alkaline battery,
•
Battery life (approx.): 200 hours of continuous operation.
•
Power saving: Auto Power Off.
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