2.2 CYLINDER PRESSURE SENSORS FOR ENGINE DEVELOPMENT
QC34C
TIGG1364A.01
The QC34C is a cooled quartz sensor with a mounting diameter of
9.9 mm designed especially for midrange engines. An active water
cooling system is required to ensure long lifetimes and excellent
thermodynamic behavior. In case of a failure in the cooling system
the QC34C is designed so that the sensor can survive temperatures
up to 350 °C. The sensor is equipped with built in SID for SDM.
SPECIFICATIONS
Measuring range 0 … 250 bar
Overload 300 bar
Sensitivity 19 pC/bar nominal
Linearity ≤ ± 0.2 % FSO
Calibrated ranges
0 … 80 bar
0 … 150 bar
0 … 250 bar
Natural frequency 69 kHz
Acceleration sensitivity
≤
≤
0.013 bar/g
0.003 bar/g
1) surface temperature around the cable connection < 200 °C
2) at 7 bar IMEP and 1,300 rpm, diesel
3) at 9 bar IMEP and 1,500 rpm, gasoline
axial, water
cooled
axial, uncooled
Shock resistance ≥ 2,000 g
Insulation resistance ≥ 1*1013 Ω
Capacitance 10 pF
Sensor operating temperature
- 40 … 350 °C
range 1) Thermal sensitivity change
≤ 0.003 %/ °C
(cooled)
20…80 °C and
0 … 250 bar
Load change drift 5.5 mbar/ms max. gradient typ.
Cyclic temperature drift 2) ≤ ± 0.3 bar
Thermo shock error Δp 3) ≤ ± 0.2 bar typ.
Mounting bore 10 mm shoulder sealed
Cable Connection M4×0.35 negative
Cooling rate ≥ 20 l/h
Weight 15 grams without cable
Mounting torque 15 Nm
using AH05 and
SF01
SCOPE OF SUPPLY
Sensor QC34C
Piezo-input cable CI41-1
Coupling CC41
Gasket SG20
Accessory kit (protection cap + 2 o-rings)
Spare gasket SG20
Calibration sheet
Documentation
70