Main features & Overview


The ME Pl'c' series of Gefran are pressure transmitters for using in High temperature environment and specifically designed for melt pressure measurement and available only to be used in large-scale fixed installations or in large-scale stationary industrial tools, typically extruders, or for laboratory B2B equipments for R&D purposes according to the European Directive 2011/65/EU (see informative note RoHS II).

The ME Performance Level 'c' Series are pressure sensors for use in high temperature applications where the process temperatures may reach 400°C (°F) such as high temperature engineered polymers.

The K Series utilizes standard melt pressure principles and construction; strain sensing technology is bonded foil strain gage.

A near incompressible liquid (mercury) is used for pressure transmission.


  • Perfromance Level 'c'
  • Pressure ranges from: 0-35 to 0-2000 bar / 0-500 to 0-30000 psi
  • Accuracy: < ±0.25% FS (H); < ±0.5% FS (M)
  • Fluid-filled system for temperature stability
  • Mercury filling volume: ME0 (30mm3); ME1, ME2 (40mm3)1
  • /2-20UNF, M18x1.5 standard threads; other types available on request
  • Autozero function on board / external option
  • Standard diaphragm is 15-5 PH stainless steel with GTP+ coating
  • 17-7 PH corrugated diaphragm with GTP+ coating for ranges below 100 bar-1500 psi

Further versions available on request.


Gefran product range brochure
Melt pressure sensors
ME PL'c' Datasheet
ME-M7 PL'c' User Manual
RoHS informative note


Performance Level 'c' Certification ME/M7, WE/W7, KE/K7 Series
GTP+ FDA Certificate
EU Conformity declaration_M series FS min 500bar PL c
EU Conformity declaration_M series FS over 500bar PL c
Conformity declaration EU - M series FS min 500 bar
UK Conformity declaration_M series FS min 500bar PL c
UK Conformity declaration_M series FS over 500bar PL c