Differential pressure
Deltabar PMD75

Deltabar PMD75 aluminum housing ©Endress+Hauser
Deltabar PMD75 stainless steel housing ©Endress+Hauser

Pressure measuring principle

Functional safety in process measurement

Deltabar PMD75 application ©Endress+Hauser
Deltabar PMD75 application ©Endress+Hauser
Deltabar PMD75 ©Endress+Hauser

Differential pressure transmitter with metal sensor for measurement of pressure differences

The Deltabar PMD75 differential pressure transmitter with with piezoresistive sensor and welded metallic membrane is used in all industries for continuous measurement in liquids, vapors and gases. The 3-key operation enables simple and reliable commissioning and operation. The integrated HistoROM data module allows easy management of process and device parameters. Designed according to IEC 61508 for use in SIL2/3 safety applications.

  • Edut

    • Best accuracy, reproducibility and long-term stability

    • Highest safety due to gas tight feedthrough with capabilities up to SIL2/3, certified to IEC 61508

    • Easy menu-guided commissioning via local display, 4 to 20mA with HART, PROFIBUS PA, FOUNDATION...

  • Käyttöalue

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

    • Process connections: Threads

    • Process temperature: -40...

Yksityiskohtaiset tiedot

  • Mittausperiaate

    Differential pressure

  • Characteristic / Application

    Digital transmitter with metallic measuring diaphragms
    Modular transmitter
    Long term stability
    High static pressure/Overload resistance
    Enhanced safety via self diagnostic functions
    Secondary process barrier

  • Supply / Communication

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

  • Accuracy

    Standard: 0.05%

    Platinum: up to 0.035%

  • Long term stability

    0,05% of URL/year

  • Ambient temperature

    -50 °C...85 °C
    (-58 °F...185 °F)

  • Process temperature

    -40 °C...85 °C
    (-40 °F...185 °F)

  • Process pressure absolute / max. overpressure limit

    420 bar (6300 psi)

  • Pressure measuring range

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

  • Main wetted parts

    Alloy C276
    316L
    Monel
    Tantalum

  • Process connection

    1/4-18NPT
    RC1/4"

  • Max. measurement distance

    400 m (1.312 ft) H2O

  • Communication

    4...20 mA HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Certificates / Approvals

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

  • Safety approvals

    Overfill prevention WHG

    SIL

  • Design approvals

    EN 10204-3.1

    NACE MR0175, MR0103

  • Marine approval

    GL/ ABS

  • Options

    HistoROM/M-Dat
    4-line digital display
    SS- or Aluminiumhousing
    Separate housing

  • Application limits

    Measuring cell:

    Metal welded

  • Mittausperiaate

    Differential pressure

  • Product headline

    Digital transmitter with metallic measuring diaphragms
    Modular transmitter
    Long-term stability
    High static pressure/Overload resistance
    Enhanced safety via self diagnostic functions
    Secondary process barrier

  • Max. measurement error

    0,075%
    "PLATINUM" 0,05%

  • Max. process pressure

    max. 420 bar
    (max. 6 091 psi)

  • Medium temperature range

    Temperature gradient from pressure piping

  • Display/Operation

    Option

  • Outputs

    4...20mA HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Digital communication

    HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Hazardous area approvals

    ATEX, FM, CSA, IECEx, INMETRO, NEPSI, TIIS

  • Functional safety

    SIL

  • Material certificates

    NACE MR0103

    NACE MR0175

    EN10204-3.1

  • Mittausperiaate

    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

  • Safety approvals

    WHG/ Overfill prevention
    SIL

  • Design approvals

    NACE MR0103
    EN10204-3.1

  • Marine approvals

    GL/ ABS

  • Specialities

    Diagnostic functions

  • Mittausperiaate

    Differential pressure

  • Product headline

    Digital transmitter with metallic measuring diaphragms
    Modular transmitter
    Long-term stability
    High static pressure/Overload resistance
    Enhanced safety via self diagnostic functions
    Secondary process barrier

  • Max. measurement error

    0,075%
    "PLATINUM" 0,05%

  • Max. process pressure

    max. 420 bar
    (max. 2175 psi)

  • Medium temperature range

    Temperature gradient from pressure piping

  • Display/Operation

    Option

  • Outputs

    4...20mA HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Digital communication

    HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Hazardous area approvals

    ATEX, FM, CSA, IECEx, INMETRO, NEPSI, TIIS

  • Functional safety

    SIL

  • Material certificates

    NACE MR0103

    NACE MR0175

    EN10204-3.1

  • Mittausperiaate

    Differential pressure

  • Product headline

    Digital transmitter with metallic measuring diaphragms
    Modular transmitter
    Long-term stability
    High static pressure/Overload resistance
    Enhanced safety via self diagnostic functions
    Secondary process barrier

  • Max. measurement error

    0,075%
    "PLATINUM" 0,05%

  • Max. process pressure

    max. 420 bar
    (max. 6091 psi)

  • Medium temperature range

    Temperature gradient from pressure piping

  • Display/Operation

    Option

  • Outputs

    4...20mA HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Digital communication

    HART
    PROFIBUS PA
    FOUNDATION Fieldbus

  • Hazardous area approvals

    ATEX, FM, CSA, IECEx, INMETRO, NEPSI, TIIS

  • Functional safety

    SIL

  • Material certificates

    NACE MR0103

    NACE MR0175

    EN10204-3.1

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