2.2 CYLINDER PRESSURE SENSORS FOR ENGINE DEVELOPMENT
GU24D
TIGG1329A.01
The GU24D is a sensor which combines the convenient installation of
M8 thread-type sensors with high accuracy that is required for precise
thermodynamic analysis. 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 %
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 14 grams without cable
Mounting torque 6 Nm using SF01
SCOPE OF SUPPLY
Sensor GU24D
Piezo-input cable CI41-1
Coupling CC41
Gasket SG21
Accessory kit (protection cap + 2 o-rings)
Spare gasket SG21
Calibration sheet
Documentation
50