2
Sensor Installation (General)
These instructions cover all the sensors that can be used with the DT-40K. Some
may not pertain to your particular model.
• Tach Sensor: Must be hooked up for instrument to work correctly.
• Temperature Sensors: If not used, use a shorting plug.
• Timing Input, White Boot: Use receiver and beacon or manual switch. It
is okay to leave this input open.
Tach and temperature inputs that are left open can cause erratic readings
and possible instrument damage.
Sensor cables that run from the engine compartment to the instrument should
always be routed as far away from the ignition system components as possible
(plug wires, spark plugs, ignition coils, distributor or magneto). Sensor cables too
close to these components may pick up radiated electrical interference and cause
erratic instrument readings and operation. A distance of at least 6˝ from these
components is desirable in all installations.
When routing sensor cables through any panels, be sure to use a rubber grommet
to keep the cables from being cut by a sharp edge. It is also good practice to
protect all of the sensors with a short piece of fuel line at any point that the cable
may rub against a hard surface.
If any of your cables are too long to route back to your instrument fully extended,
we recommend sending your sensors back to Digatron to be cut to the appropriate
length for your needs. You can also coil them each separately. If you do coil your
sensors, keep the coils away from the engine.
For detailed information about installing each sensor, see Appendix A.
