| Lifetime |
Life expectancy is 10 years |
| Material compatibility |
Resistant to exposure to: water; engine oil; engine coolant; diesel fuel; gasoline; salt spray; degreaser; TSP; ammonia and dust. All common automotive liquids and materials |
| Sealing |
IP67 minimum
High pressure water spray sealing test: 1200psi
High pressure wash at 0.5m with 5% aqueous solution NaCl for 48 hours at 35°C |
| Electric and electromagnetic tests |
|
| Operating over voltage |
Tested to withstand 35V for 1 hour |
| Reversed power supply voltage |
Tested to withstand a reversed power supply voltage of 35V for 1 hour |
| Resistance to random connection |
Tested to withstand inputs and outputs short circuit towards ground for 30 minutes |
| Immunity to electrostatic charge |
Tested at 15kV applied with capacitance of 150pF and a resistor of 330ohm |
| Immunity to electromagnetic disturbances |
Tested in an electromagnetic field of 100V/m within the frequency range of 14kHz to 1GHz |
| Pulse energy absorbtion |
1.7J |
| Mechanical tests |
|
| Sinusoidal vibration resistance |
Tests carried out:
Frequency 10-2000Hz
Displacement (peak to peak): 1.5mm (from 10 to 40Hz)
Acceleration 35m/sec2 (from 10-40Hz)
Sweep time: 0.5 oct/min
Duration: 8 hours per plane |
| Random vibration |
Tests carried out:
Oscillation frequency from 24-2000Hz
| Frequency |
Power Spectral Density |
| 24 |
0.04g2/Hz |
| 60 |
0.504g2/Hz |
| 100 |
0.50g2/Hz |
| 240 |
0.10g2/Hz |
| 2000 |
0.10g2/Hz |
|
| Mechanical drop |
Multiple drops onto a concrete surface from a height of 1m. Number of drops: 10 |
| Thermal shock |
Tested to:
Upper temperature: 120°C
Lower temperature: -40°C
Dwell time at each extreme: 2hrs
Transfer time: within 30sec
Number of cycles: 5 |
| Operating temperature test (in normal working condition) |
Test cycle:
4 hours at 120°C
4 hours at -40°C
Changing rate 20°C/min
Number of cycles: 100 |
Level Sensors 
