2.2 CYLINDER PRESSURE SENSORS FOR ENGINE DEVELOPMENT
GU24DE
TIGG1478A.01
The GU24DE is a sensor which combines the convenient installation
of M8 thread-type sensors with the high accuracy that is required
for precise thermodynamic analysis. The sensor has also a special extension
tube which allows it to cross water and oil jackets of the engine
without the need of an adaptor sleeve. The Double-Shell™ design
decouples the piezoelectric elements from negative influences
of mechanical stresses which can occur due to the mounting of the
sensor into the engine. The sensor is equipped with built in SID for SDM.
SPECIFICATIONS
Measuring range 0 … 250 bar
Overload 300 bar
Sensitivity 45 pC/bar nominal
Linearity ≤ ± 0.3 % FSO
Calibrated ranges
1) surface temperature around the HEX < 200 °C
2) at 7 bar IMEP and 1,300 rpm, diesel
3) at 9 bar IMEP and 1,500 rpm, gasoline
0 … 80 bar
0 … 150 bar
0 … 250 bar
Natural frequency 92 kHz
Acceleration sensitivity ≤ 0.002 bar/g axial
Shock resistance ≥ 2,000 g
Insulation resistance ≥ 1*1013 Ω
Capacitance 8 pF
Sensor operating temperature
range 1) - 40 … 400 °C
Thermal sensitivity change
≤
≤ ±
1.5 %
0.25 %
20 … 400 °C and
0 … 250 bar
250 ± 100 °C and
0 … 250 bar typ.
Load change drift 4 mbar/ms max. gradient typ.
Cyclic temperature drift 2) ≤ ± 0.3 bar
Thermo shock error Δp 3) ≤ ± 0.2 bar typ.
Thread diameter M8×0.75 shoulder sealed
Cable Connection M4×0.35 negative
Weight 22.5 grams without cable
Mounting torque 6 Nm using SF01
SCOPE OF SUPPLY
Sensor GU24DE
Piezo-input cable CI41-1
Coupling CC41
Gasket SG21
Accessory kit (protection cap + 2 o-rings)
Spare gasket SG21
Calibration sheet
Documentation
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