Part name: SCR Pressure Sensor
Eltek SCR relative pressure sensor combined with integrated anti-freeze protection is suitable for measuring the relative pressure in Selective Catalytic Reduction (SCR) Systems for PC-LD, TRUCK and NRMM applications. The sensitive element is a monolithic ceramic element capable of detecting the relative 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 AdBlue 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:
  • Patented antifreezing protection
  • 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
  • Diesel resistant version available
  • IP6K9K DAE membrane available on demand
  • Electric custom connection
Technical data:
Accuracy ± 1% BOL F.S. 0°C...60°C
± 2% EOL F.S. 0°C...60°C
Factor X3 -40°C...0°C and 50°C...85°C
Pressure Range 0 bar.......8 bar relative
0 bar.......9 bar relative
-0,5 bar....9 bar relative
-1 bar.....13 bar relative
(other ranges available)
Max Continuous Pressure 40 bar
Burst Pressure 50 bar
Operating Voltage (nominal): 5.0 ± 0,25 V
Maximum Voltage -18V....+32V
ESD (ISO 10605): ±15KV Air discharge
(±25KV on demand)
±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....+90°C
Insulation Resistance min 10 MΩ
Vibrations according to ISO 16750-3 test 4
Medium Ad-Blue (DIN 70070)