[IT]

Melt Pressure
Transducer and transmitters

Gefran patented:

IMPACT sensor technology

IMPACT is the acronym for Innovative Melt Pressure ACcurate Transducer, an innovative technology for measuring the pressure of high-temperature fluids.

IE Melt Pressure Transmitters
Output 4...20mA



  • Pressure ranges: 0-100
        to 0-1000 bar / 0-1500 to
        0-15000 psi
  • Accuracy: < ±0.25% FSO
        (H); < ±0.5% FSO (M)
  • Standard threading
        1/2-20UNF, M18x1.5; other
        versions on request
  • Other types of diaphragms
        are available on request
  • Autozero function on board
        / external option
  • 15-5 PH stainless steel
        diaphragm GTP coated

The "IMPACT" series of Gefran are pressure transmitters, without transmission fluid, for using 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-machined silicon structure (MEMS).

The operating principle is piezoresistive. The micro structure includes the measurement membrane and piezoresistors. 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.

  • As for absolute absence of filling fluid, the I series is the right choice for Mercury free, food and medical application
  • Superior wear reasistence: suitable with filled polymers
  • High resistance to withstand to dynamic pressure
  • High robustness towards the process: cold starts, multiple installation
  • Low thermal drift for Zero e Span signal: < 1%FS (20°C-350°C)
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FAQ
What is the operative principle of Impact sensors?

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