2.2 CYLINDER PRESSURE SENSORS FOR ENGINE DEVELOPMENT
GU31D
TIGG2057A.01
GU31D is a durable M10 cylinder pressure sensor for large-bore
engines. The sensor can be used with various fuels such as diesel,
heavy fuel oil or natural gas. It is equipped with a central preload
element that makes this sensor suitable for permanent non-stop
operation. 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
could be equipped with SIC for SDM.
SPECIFICATIONS
Measuring range 0 … 250 bar
Overload 300 bar
Sensitivity 20 pC/bar nominal
Linearity ≤ ± 0.5 % 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 90 kHz
Acceleration sensitivity ≤ 0.001 bar/g axial
Shock resistance ≥ 2,000 g
Insulation resistance ≥ 1*1013 Ω
Capacitance 7 pF
Sensor operating temperature
range 1) - 40 … 350 °C
Thermal sensitivity change
≤
≤ ±
0.5 %
0.2 %
20 … 350 °C and
0 … 250 bar
250 ± 100 °C and
0 … 250 bar typ.
Load change drift 1.5 mbar/ms max. gradient typ.
Cyclic temperature drift 2) ≤ ± 0.8 bar
Thermo shock error Δp 3) ≤ ± 0.4 bar typ.
Thread diameter M10×1 shoulder sealed
Cable Connection M4×0.35 negative
Weight 22 grams without cable
Mounting torque 15 … 20 Nm using SF01
SCOPE OF SUPPLY
Sensor GU31D
Piezo-input cable CI41-1
Coupling CC41
Gasket SG20
Accessory kit (protection cap + 2 o-rings)
Spare gasket SG20
Calibration sheet
Documentation
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