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HMX

Main features & Overview

Overview

The HMX 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 HMX series of Gefran are pressure transmitters with HART communication protocol for using in high temperature environment with explosive atmosphere presence.

The main characteristic of this series is the capability to read temperature of the media up to 400°C.

The constructive principle is based on the hydraulic trasmission of the pressure.

The fluid-filled system assures the temperature stability.

The physical measure is transformed in a electrical measure by means of strain-gauge technology.

Description

  • Pressure ranges from: 0-17 a 0-2000 bar/0-250 a 0-30000 psi
  • Extensimetric measurement principle with Wheatstone bridge
  • Accuracy: < ±0.25% FS (H); < ±0.5% FS (M)
  • Calibration signal 80% FS internally generated
  • Protection level: IP65 (6-pin connector)
  • 1/2-20UNF, M18x1.5 standard threads; other types available on request
  • Standard diaphragm is 15-5 PH stainless steel with GTP+ coating
  • 17-7 PH corrugated stainless steel diaphragm with GTP+ coating for ranges below 100 bar-1500 psi

Further versions available on request.

Downloads

Gefran product range brochure
Melt pressure sensors
Flyer Melt for Polymers
HMX datasheet
80638 Safety Note HMX-HWX EAC Ex012
HMX, HWX SAFETY NOTES - 3GD
HMX, HWX safety notes
Product user manual
H pressure transmitter description file
H pressure transmitter description files for HH475
RoHS informative note

Certifications

Hart Certifications - Certificate of Registration HCF Verified
GTP+ FDA Certificate
ATEX Certifications - ATEX for pressure or temperature transmitters HART series HMX, HWX, HIX, AX
EU Conformity declaration_HMX FS min 500bar PLd
EU Conformity declaration_HMX FS min 500bar
EU Conformity declaration_HMX FS over 500bar PL d
EU Conformity declaration_HMX FS over 500bar
EU Conformity declaration_HMX FS min 500bar SIL 2
PAC - PATTERN APPROVAL CERTIFICATE HMX/HWX/HIX - Kazakhstan (Kazakh language)
PAC - PATTERN APPROVAL CERTIFICATE HMX/HWX/HIX - Kazakhstan (Russian language)
PAC - PATTERN APPROVAL CERTIFICATE HMX/HWX/HIX - Russia
NEPSI Ex APPROVAL CERTIFICATE - HMX/HWX/HIX
PESO- Petroleum & Explosives Safety Organisation CERTIFICATE HMX/HWX/HIX
KCs APPROVAL CERTIFICATE_HMX

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