Installation of the Detonation Sensors

Explosion hazard!

Only use detonation sensors approved by MOTORTECH for operation in potentially explosive atmospheres.

P/N

Description

43.20.001

Detonation sensor without sensor lead, two-pole

43.30.004-60

Detonation sensor lead, 18 m (59.06 ft)

 



Use MOTORTECH detonation sensors

The DetCon detonation controllers are parameterized for operation with MOTORTECH detonation sensors (piezoelectric acceleration transducers).

   

Observe notes of the engine manufacturer

The following installation notes should be understood as orientation. Please observe in any case the notes of the respective engine manufacturers for the installation of the detonation sensors and the set up of a detonation controller.

 

Dimensions of the Required Bore

15_Abmessungen_Klopfsensorbohrung

An M6 screw can also be used as an alternative to M8 screw for the installation of the detonation sensor. In this case, an adaptor sleeve has to be used in the sensor to close the resultant hollow space, thus ensuring optimal signal transmission.

Installation

In order to ensure the best functioning of the DetCon detonation controller, it is mandatory to install the sensors as follows:

 

Risk of destruction!

The detonation sensor mounting screws have not to be tightened too firmly, as otherwise the sensors will be damaged and no longer function properly. Note the following specifications for sensor installation:

  • Tightening torque: 20 Nm ± 5 Nm (14.8 lb-ft ± 3.7 lb-ft) for mounting screws:
    • Cast iron engine block: M8 x 25 mm (0.98"), property class 8.8
    • Aluminum engine block: M8 x 30 mm (1.18"), property class 8.8
  • Tightening torque: 15 Nm ± 5 Nm (11 lb-ft ± 2.2 lb-ft) for mounting screws M6 x 30 mm (1.18"), property class 10.9 with sleeve

Also, lay the sensor cables in such a way that no resonance vibrations can occur on the cable. Otherwise, there is a risk of breakage.






The required installation of the detonation sensors may vary depending on the engine type used. The following locations are, in principle, possible for fitting the detonation sensors taking into account the aforementioned specifications:

Contact the engine manufacturer if you are not sure whether the cylinder head screw or the cylinder head screw is suitable for the installation.