2.2 CYLINDER PRESSURE SENSORS FOR ENGINE DEVELOPMENT
GH14P
TIGG1323A.01
The GH14P is in combination with a glow-plug adaptor (direct
mount) a nearly flush mounted solution for diesel engines. It allows
measurements
without pipe oscillations and pressures of up to
250 bar. The GH14P comes with an M3 connector which allows the
smallest installation tool clearance diameters. The glow plug adaptor
dimensions are custom tailored to the requirements of the customer.
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 adaptor or engine. Using a
thermo protection like PH08 can improve the cyclic drift by 0.3 bar.
The sensor is equipped with built in SID for SDM.
SPECIFICATIONS
Measuring range 0 … 250 bar
Overload 300 bar
Sensitivity 15 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 115 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 … 400 °C
Thermal sensitivity change
≤
≤ ±
2 %
0.5 %
20 … 400 °C and
0 … 250 bar
250 ± 100 °C and
0 … 250 bar typ.
Load change drift 1 mbar/ms max. gradient typ.
Cyclic temperature drift 2) ≤ ± 0.5 bar
Thermo shock error Δp 3) ≤ ± 0.3 bar typ.
Mounting bore 4.3 mm front sealed
Cable Connection M3×0.35 negative
Weight 5.4 grams without cable
Mounting torque 1.5 Nm using SF01
SCOPE OF SUPPLY
Sensor GH14P
Piezo-input cable CI31-1
Coupling CC31
Accessory kit (protection cap + 2 o-rings)
Calibration sheet
Documentation
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