Part name: OPS=Oil Pressure Sensor
Eltek Oil Pressure Sensor (OPS) is suitable for measuring relative or absolute oil pressure for sophisticated engine management systems for PC-LD and MD-HD applications. Chemical resistance to engine oil is guaranteed by means of approved materials. The sensitive element is a ceramic element capable of detecting relative or absolute pressure, integrating a signal conditioning IC, which is directly assembled on the sensor. All the active and sensing electonic circuits are not in contact with the engine oil and they are separated from the fluid through a ceramic membrane. The sensor output is ratiometric with the power supply. Calibration procedure, fault conditions management, ESD and EMI requirements are guaranteed by means of an approved IC according to automotive standards.
General characteristics:
  • Temperature Compensated (3 points)
  • Pressure Compensated (2 points)
  • Custom Calibration by Conditioning IC
  • Analog or Digital Output
  • Automotive Designed
  • HV, RP and Short Circuit Protection
  • Safety and Diagnostic Functions
  • Long Term Stability
  • Low Power Consumption
  • Piezoresistive Technology (Thick Film)
  • Real Time Measure
  • Electric custom connection
  • Custom Hydraulic Port (stailess steel)
Technical data:
Accuracy ± 1,5% F.S 0°C... 110°C and 0 bar...7 bar
± 3% F.S -40°C...0°C and 0 bar...7 bar
± 3% F.S +110°C...+140°C and 0 bar...7 bar
Pressure Range 0 bar.........7 bar relative
(other pressure ranges or absolute pressure available on demand)
Max Continuous Pressure 25 bar
Burst Pressure 35 bar
Operating Voltage (nominal) 5.0 ± 0,25 V
Maximum Voltage -18V....+32V
ESD (ISO 10605): ± 15KV Air discharge
± 8KV Direct contact
Diagnostic Functions output goes above 4,75V and/or below 0,3V in case of failure
Supply Current < 10 mA
Output Voltage (Vout) 0,5V....4,5 V ratiometric
Digital Standard I2C
Digital Custom OWI
Response Time from 10% to 90% <10 ms
Temperature Range -40°C....+140°C
(+ 150°C for 5 min)
Insulation Resistance min 10 MΩ
Medium Engine oil