Absolute and
gauge pressure
Cerabar PMP55

Digital pressure transmitter with fully welded diaphragm seal for measurement in gases or liquids

• Measuring principle

  Absolute and gauge pressure

• Characteristic

  Smart and reliable pressure transmitter, with piezoresistive measuring cell
  and metal welded process isolating diaphragm and diaphragm seal.

• Supply voltage

  4...20 mA HART
  11,5...45V DC (Non Ex):
  Ex ia: 11,5...30V DC
  PROFIBUS PA:
  9...32 V DC (Non Ex)
  FOUNDATION Fieldbus:
  9...32 V DC (Non Ex)

• Reference Accuracy

  Standard 0.15%
  Platinum 0.075%

• Long term stability

  0.1% of URL/ year
  0.2% of URL/ 5 years
  0.25% of URL/ 10 years

• Process temperature

  -70°C…+400°C
  (-94°F…+752°F)

• Ambient temperature

  -40°C...+85°C
  (-40°F...+185°F)

• Measuring cell

  400 mbar...400 bar
  (5.8 psi...6000 psi)
  relative/ absolute

• Smallest calibratable span

  20 mbar (0.3 psi)

• Vacuum resistance

  50 mbar (0.73 psi)

• Max. Turn down

  20:1

• Max. overpressure limit

  600 bar (9000 psi)

• Process connection

  Thread:
  G1/2...G2, MNPT1/2...MNPT2
  Flange:
  DN25...DN100,
  ASME 1"...4",
  JIS 10k
  Diaphragm seal

• Process connection hygienic

  Tri-Clamp
  DIN11851
  DIN11864-1
  NEUMO
  Varivent
  SMS
  DRD
  Universal adapter

• Material process membrane

  316L, AlloyC,
  Tantal, PTFE,
  Rhodium>Gold

• Material gasket

  None, diaphragm welded

• Fill fluid

  Silicone oil,
  Inert oil,
  Vegetable oil,
  High temperature oil,
  Low temperature oil,

• Material housing

  Die-cast aluminum,
  AISI 316L

• Communication

  4...20 mA
  4...20 mA HART
  PROFIBUS PA
  FOUNDATION Fieldbus
  IO-Link

• Certificates / Approvals

  ATEX, FM, CSA, CSA C/US, IEC Ex, INMETRO, NEPSI, UK Ex

• Safety approvals

  SIL

• Design approvals

  EN10204-3.1
  NACE MR0103

• Hygienic approvals

  CoC ASME-BPE
  3A, EHEDG

• Marine approvals

  GL/ ABS/ LR/ BV/ DNV

• Specialities

  TempC Membrane

• Successor

  PMP51B