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Last Updates: 15/02/2021

Endress+Hauser Differential pressure Deltabar PMD55

The Deltabar PMD55 differential pressure transmitter with piezoresistive sensor and welded metallic membrane is typically used in process or environmental applications for continuous measurement of pressure differences in liquids, vapors and gases. Quick Setup with adjustable measuring range allows simple commissioning, reduces costs and saves time. SIL2 according to IEC 61508 / IEC 61511.

  • Easy menu-guided commissioning via local display, 4 to 20mA with HART, PROFIBUS PA, FOUNDATION Fieldbus
  • Easy process adaptation to impulse line high-pressure/low-pressure change via electric switch on the main electronics
  • Compact design and modular concept for easy replacement of display or electronics
  • Process pressure up to SIL2, certified to IEC 61508 and IEC 61511
  • Global usage thanks to the widest range of approvals for industries and applications

For level, volume or mass measurement in liquids, differential pressure monitoring, e.g. of filters and pumps as well as flow measurement (volume or mass flow) in conjunction with primary elements in gases, vapors and liquids.

  • Process connections: Threads
  • Measuring ranges: 0.5mbar to 40bar (0.0072 to 600psi)
  • Measuring ranges: 0.5mbar to 40bar (0.0072 to 600psi)
  • Accuracy: ±0.1%, “Platinum” ±0.075% (optional)
  • International explosion protection certificates, SIL

Measuring principle

Differential pressure

  • Digital transmitter with metallic measuring diaphragms
    Compact size
    Modular transmitter
    Long-term stability

  • Supply / Communication

    4…20mA HART:
    11,5…45V DC
    Ex ia: 11,5…30V DC

  • Accuracy

    0,1%
    “PLATINUM” 0,075%

  • Long term stability

    0,05% of URL/year 
    0,125% of URL/5 years

  • Ambient temperature

    -40°C…85°C
    (-40°F…185°F)

  • Process temperature

    -40 °C…85 °C
    (-40 °F…185 °F)

  • Process pressure absolute / max. overpressure limit

    160 bar

  • Pressure measuring range

    10mbar…40bar
    (0.15…580psi)

  • Main wetted parts

    316L

  • Process connection

    1/4-18 NPT

  • Communication

    4…20mA HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Certificates / Approvals

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

  • Safety approvals

    SIL

  • Design approvals

    EN 10204-3.1
    NACE MR0175, MR0103
    AD2000

  • Options

    4-line digital display
    Aluminium housing

  • Application limits

    Measuring cell:
    Metal welded

Datasheet: Deltabar M PMD55 Technical Information

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