ILI IMPACT fluid free – IO-Link digital output – SIL2 – PLd



  • The "IMPACT" series of Gefran, are pressure transmitters, without transmission fluid, for use in High-temperature environment (350°C).
  • Medium pressure is transferred directly to the sensitive silicon element via a thick diaphragm. Strain is transduced by a micro-worked silicon structure (MEMS) and the operating principle is piezoresistive.
  • This new series "ILI" with "IO-Link" digital output is a Smart device specifically designed to meet the requirements of "Industry 4.0" environment, with auxiliary information suitable to prevent machine downtime.
  • The main characteristic of "IMPACT" sensors is that they do not contain any transmission fluid.
  • The minimum deflection required by the sensitive element makes it possible to use very robust mechanics.
  • The process contact membrane can be up to 15 times thicker than the membrane used in traditional Melt sensors.
  • Suitable for Functional Safety applications thanks to PLd and
  • SIL2 approvals.


  • Perfomance Level "d" and SIL2 compliance
  • Accuracy: < ±0.25% FS (H); < ±0.5% FS (M)
  • Pressure ranges: 0-10 to 0-1000 bar / 0-150 to 0-15000 psi
  • Standard thread: 1/2-20UNF, M18x1.5
  • Rangeability: 3:1
  • Autozero function
  • 15-5 PH stainless steel diaphragm GTP+ coated
  • IO-Link digital output ready for "Industry 4.0"
  • Temperature reading over IO-Link (optional)