Intrinsically Safe



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Hazardous Environment Melt Pressure Transmitters/Transducers
Models 230X, 231X;  330X, 331X; 330Z, 331Z


The GP:50 product line of melt pressure transducers and transmitters are based on the proven bonded strain gage principle successfully utilized in thousands of applications. Our unique design incorporates a heavier sensor allowing a thicker tip diaphragm, provides better linearity, and reduces costs.

The design incorporates an extremely small capillary tubing that transmits the media pressure to the strain gage sensor and mating electronics via a mechanical fill fluid. (Mercury is the standard, silicone oil, mineral oil and Nak are readily available, depending on application).

  • Pressure ranges from  0-500 through 0-30,000 psi (see ordering guide)
  • Rugged, all-welded, all stainless steel construction
  • Interchangeable with existing systems
  • Many options available, Hastelloy C-276 or Boron – Hardening
  • Accuracies (non-linearity, hysteresis, non-repeatability) of:
    • ±0.25% FSO, RSS (0-5000 psi & higher)
    • ±0.5% FSO, RSS (0-500 and 0-3500 psi)
  • FM Explosion-Proof and FM Intrinsically Safe approvals (Class I, Division I, Groups A, B, C, D)
  • CSA Intrinsically Safe Approved
  • Internal Calibration Resistor set to 80% ±0.5% FSO (explosionproof model only)
  • Zero and span controls, approximately ±20% FSO