Motortech DetCon series, Operating Manual

Page: 33 / 90

4 Product Description
Rev. 02/2019 33
The MOTORTECH detonation sensors have the following technical data:
Feature Value
Sensor principle Piezoelectric acceleration transducer
Sensor type MOTORTECH
Frequency range 1 kHz to 20 kHz
Resonance frequency > 20 kHz
Temperature range –40 °C to +130 °C (–40 °F to +266 °F)
Dimensions, Sensor 45 mm x 20 mm x 21 mm (1,77'' x 0,79'' x 0,83'')
(see Mounting the Knocking Sensors)
Sensor mount Torque: 20 Nm ± 5 Nm (14.8 lb-ft ± 3.7 lb-ft) for the following
fixing screws:
– Cast iron: M8 x 25 mm (0.98"), strength 8.8
– Aluminium: M8 x 30 mm (1.18") , Strength 8.8
Torque: 15 Nm ± 5 Nm (11 lb-ft ±2.2 lb-ft) for the following fixing
screws:
– M6, strength 10.9 with sleeve for fixing to the cylinder head
screw.
If necessary, the material of the cylinder head screw on which
the sensor is mounted should also be taken into account
Blocking capacitor board for use in potentially explosive atmospheres
The blocking capacitor board serves as a safety barrier between the DetCon20 and the
Knock sensors, which makes the use of knock sensors in potentially explosive areas
is made possible.
The blocking capacitor board has the following technical data:
Feature Value
Temperature range –10 °C to +60 °C (+14 °F to +140 °F)
Dimensions (mm) 40 mm x 47 mm x 12 mm (1.57" x 1.85" x 0.019 ")
Flammability class UL 94-V2
Article number P/N 43.20.029