Differential pressure
Deltabar PMD75

Differential pressure transmitter with metal sensor for measurement of pressure differences

• Measuring principle

  Differential pressure

• Characteristic

  Digital transmitter with metallic measuring diaphragms
  Modular transmitter
  Long-term stability
  High static pressure/Overload resistance
  Secondary process barrier

• Supply voltage

  4...20 mA HART
  10,5...45V DC (Non Ex):
  Ex ia: 10,5...30V DC
  PROFIBUS PA:
  9...32 V DC (Non Ex)
  FOUNDATION Fieldbus:
  9...32 V DC (Non Ex)

• Reference Accuracy

  Standard: 0.05%
  Platinum: up to 0.035%

• Long term stability

  0.03 % of URL/ year
  0.05 % of URL/ 5 years
  0.08 % of URL/ 10 years

• Process temperature

  -40°C...85°C
  (-40°F...185°F)

• Ambient temperature

  -50°C...85°C
  (-58°F...185°F)

• Measuring cell

  10 mbar...250 bar
  (0.15 psi...3750 psi)

• Smallest calibratable span

  1 mbar (0.015 psi)

• Vacuum resistance

  50 mbar (0.73 psi)

• Max. Turn down

  100:1

• Max. overpressure limit

  On one side:
  420 bar
  (6300psi)

• Process connection

  1/4-18NPT
  RC1/4"

• Material process membrane

  316L, AlloyC,
  Tantal,
  Gold-Rhodium

• Material gasket

  Viton, PTFE, EPDM, NBR

• Fill fluid

  Silicone oil
  Inert oil

• Material housing

  316L, Die-cast aluminum

• Communication

  4...20 mA HART
  PROFIBUS PA
  FOUNDATION Fieldbus

• Certificates / Approvals

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

• Safety approvals

  SIL

• Design approvals

  NACE MR0103
  EN10204-3.1

• Marine approvals

  GL/ ABS

• Specialities

  Diagnostic functions

• Successor

  PMD75B