General Technologies TD101 SmarTach + D: Gas and Diesel Tachometer with Ignition Voltage Tester - Manual (Page 13)

2. Clip the alligator ground clip on the sensor wire onto a
clean unpainted section of the same injection pipe.
3. Check that battery in the SmarTach+ D is connected.
4. Insert the jack plug on the sensor wire into the female jack
connector on the SmarTach+ D.
5. Set the correct engine cycles (4-Stroke or 2-Stroke) by
pressing the TACH button until the correct number is
displayed. Display will then switch to “0000”.
6. Connect the forked terminal to the sensor clamp. Start the
diesel engine and the RPMs will be immediately displayed
on the screen.
7. If no RPMs are displayed check for firm clean connections
at the sensor clamp and the ground clip. If this does not fix
the problem, read sections 2. and 3. in the full instructions
that follow. Do not try to fix a problem by extra tightening of
the thumb screw on the clamp!
8. The SmarTach+D switches off automatically if no signals
are received after one minute.
DIESEL TACH DETAILED INSTRUCTIONS
Please be sure to read the first section of this user’s handbook,
to become familiar with the basic operation of the SmarTach+,
before to proceed with this section.
1. Open the battery drawer at the back of the SmarTach+ D.
Remove, turn around, and connect the clip to the factory
supplied battery.
2. Fit the sensor to a clean unpainted section of an injection
pipe. The clamp must make a good electrical connection to
the pipe.
•
Scrape and sandpaper the pipe if necessary. If you do
not wish to do this you could wrap a piece of kitchen
type aluminum foil, such as Reynolds Wrap, around the
pipe and clamp the sensor over this foil. Make the foil
wrap long enough to allow placing of the alligator
ground clip on the same piece of foil. Use of aluminum
foil will often fix problems due to bad electrical connec-
tions between the sensor clamp and the injection pipe.
•
Do not over tighten the clamp . Use of excessive force
or tools such as pliers to tighten the clamp will result in
damage to the piezo crystal and void the guarantee.
Replacement clamps are expensive!
3. Clip the alligator ground clamp (on the end of the connect-
ing wire) onto the same pipe, below or above the sensor
clamp. If this is not convenient, clip the ground clamp to
any other good ground point on the engine.
•
Important Note: If you have used the aluminum foil
method of attaching the clamp (described in 2. above) it
is essential that the alligator ground clamp is clipped to
the same piece of aluminum foil.
4. Pick up the male stereo jack plug (at the opposite end of
the connecting wire) and insert this plug fully into the
female connector on the SmarTach+D. This connector is
located close to the antenna at the top of the
SmarTach+ D box.
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