Name: Deltabar M PMD55
Brand: Endress+Hauser
Availability: InStock

Differential pressure Deltabar PMD55

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Product is getting phased out

Phase out Product status

Differential pressure Deltabar PMD55

New alternatives available

Successor

Deltabar PMD55B

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Phase out policy

Endress+Hauser are committed to the long term support of all our products

We undertake support and service for our products for a period of ten years after notice of product withdrawal (until spareparts are not available any more)

However we reserve us the right to offer alternative solutions including replacement products if deemed more appropriated.

Product status

Product root PMD55

Name Differential pressure Deltabar PMD55

Product status In phase out

Phase out date 12/2024

Order stop 6/2027

Spare sensor until not applicable

Calibration until not applicable

Spares available 7/2030

Repair until 7/2030

New alternative PMD55B

Maintenance advice

Differential pressure transmitter with metal sensor for measurement of pressure differences

Pressure measuring principle

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Differential pressure Deltabar PMD55

Phase out

Differential pressure transmitter with metal sensor for measurement of pressure differences

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Successors

Deltabar PMD55B

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Deltabar PMD55B

Smart transmitter with metal membrane for differential pressure monitoring in liquids and gases

Benefits

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

Services and resources

Product Support Product documentation, troubleshooting articles, device details and more.

FLEXible answers to individual needs

Current product

Differential pressure Deltabar PMD55

Standard products
Reliable, robust and low-maintenance

What is FLEX?

FLEX selections

Technical excellence

Simplicity

Fundamental selection Meet your basic measurement needs

Lean selection Handle your core processes easily

Extended selection Optimize your processes with innovative technologies

Xpert selection Master your most challenging applications

Variable

Learn more about the FLEX selections

Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

Learn more

Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

Learn more

24/7 customer portal

Personalized transaction space

Check prices and delivery times, save your favorite products, create quotes and place orders in just a few clicks and track deliveries at any time. With access to your complete order and quote history including all relevant documents you benefit from full transparency throughout the entire process.

Easy access to technical documentation

Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

My Endress+Hauser – all in one place

My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

Have questions about this product?

Selection of compatible products

RN42 active barrier

Active barrier, 1 channel for 4 to 20 mA, HART® transparent with 24 to 230 V AC/DC as well as active/passive input and output, optionally with SIL and Ex

Loop-powered process indicator RIA14 for field installation

RIA14 process indicator

Loop-powered Ex d process indicator as field device for 4 to 20 mA signals, HART® transparent

RN22 intrinsically safe isolating barrier, power supply and signal doubler for hazardous areas

RN22 active barrier

Active barrier, 1/2-channel/SD for 4 to 20 mA, HART® transparent with 24 V DC as well as active/passive input and output, optionally with SIL and Ex

RNF22 power feed-in and error message module

RNF22 power feed-in/error message module

Power feed-in/error message module for simple and redundant 24 V DC supply to T-connector with fault message monitoring

RNB22 compact, high-efficiency primary switch mode power supply for DIN rail interface systems

RNB22 system power supply unit

System power supply unit for parallel operation with 100 to 250 V AC input and 24 V DC 2.5 A output as well as static/dynamic boost

Spare parts and accessories

Cover

Cover F30/31/34 Alu, gasket

Cover

Order code 71092705

Drawing number 20

Cover

Cover F30/31 Alu, Ex d, gasket

Cover

Order code 71092706

Drawing number 20

Cover

Cover F30/31/34 Alu, sight glass, gasket

Cover

Order code 71092707

Drawing number 20

Cover

Cover F30/31 Alu,Exd,sight glass, gasket

Cover

Order code 71092708

Drawing number 20

Spare parts & accessories

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Differential pressure - Deltabar PMD55

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CAD Drawings

Configuration support

Spare parts and accessories

Cover

Cover F30/31/34 Alu, gasket

Cover

Order code 71092705

Drawing number 20

Cover

Cover F30/31 Alu, Ex d, gasket

Cover

Order code 71092706

Drawing number 20

Cover

Cover F30/31/34 Alu, sight glass, gasket

Cover

Order code 71092707

Drawing number 20

Cover

Cover F30/31 Alu,Exd,sight glass, gasket

Cover

Order code 71092708

Drawing number 20

Spare parts & accessories

Selection of compatible products

RN42 active barrier

Active barrier, 1 channel for 4 to 20 mA, HART® transparent with 24 to 230 V AC/DC as well as active/passive input and output, optionally with SIL and Ex

RIA14 process indicator

Loop-powered Ex d process indicator as field device for 4 to 20 mA signals, HART® transparent

RN22 active barrier

Active barrier, 1/2-channel/SD for 4 to 20 mA, HART® transparent with 24 V DC as well as active/passive input and output, optionally with SIL and Ex

RNF22 power feed-in/error message module

Power feed-in/error message module for simple and redundant 24 V DC supply to T-connector with fault message monitoring

RNB22 system power supply unit

System power supply unit for parallel operation with 100 to 250 V AC input and 24 V DC 2.5 A output as well as static/dynamic boost

Accuracy	0,1% "PLATINUM" 0,075%
Process temperature	-40 °C...85 °C (-40 °F...185 °F)
Pressure measuring range	10mbar...40bar (0.15...580psi)
Main wetted parts	316L
Material process membrane	316L, AlloyC,
Measuring cell	10 mbar...40 bar (0.15...580 psi)
Measuring principle	Differential pressure
Characteristic	Digital transmitter with metallic measuring diaphragms Compact size Modular transmitter Long-term stability
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 0.1% Platinum 0.075%
Long term stability	0.05% of URL/ year 0.13% of URL/ 5 years 0.23% of URL/ 10 years
Process temperature	-40°C...+85°C (-40°F...+185°F)
Ambient temperature	-40°C...+85°C (-40°F...+185°F)
Smallest calibratable span	10 mbar (0.15 psi)
Max. Turn down	20:1
Max. overpressure limit	on one side: 160 bar (2300 psi)
Process connection	1/4-18 NPT
Material gasket	Viton, PTFE, EPDM, NBR
Fill fluid	Silicone oil Inert oil
Material housing	Die-cast aluminum
Communication	4...20 mA HART PROFIBUS PA FOUNDATION Fieldbus
Certificates / Approvals	ATEX, FM, CSA, CSA C/US, IEC Ex, INMETRO, NEPSI, UK Ex
Safety approvals	SIL
Design approvals	NACE MR0175 EN10204-3.1
Successor	PMD55B
Accuracy	0,1% "PLATINUM" 0,075%
Process temperature	-40 °C...85 °C (-40 °F...185 °F)
Pressure measuring range	10mbar...40bar (0.15...580psi)
Main wetted parts	316L
Material process membrane	316L, AlloyC,
Measuring cell	10 mbar...40 bar (0.15...580 psi)
Measuring principle	Differential pressure
Characteristic / Application	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
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 pressure / max. overpressure limit	160 bar
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
Successor	PMD55B
Application limits	Measuring cell: Metal welded
Accuracy	0,1% "PLATINUM" 0,075%
Process temperature	-40 °C...85 °C (-40 °F...185 °F)
Pressure measuring range	10mbar...40bar (0.15...580psi)
Main wetted parts	316L
Material process membrane	316L, AlloyC,
Measuring cell	10 mbar...40 bar (0.15...580 psi)
Measuring principle	Differential pressure
Product headline	Digital transmitter with metallic measuring diaphragms Compact size Modular transmitter Long-term stability
Max. measurement error	0,1% "PLATINUM" 0,075%
Max. process pressure	10 mbar...40 bar (0.15...580 psi)
Medium temperature range	Temperature gradient from pressure piping
Display/Operation	Option
Outputs	4...20mA HART
Digital communication	HART
Hazardous area approvals	ATEX, FM, CSA, IECEx, INMETRO, NEPSI, TIIS
Functional safety	SIL
Material certificates	NACE MR0103 NACE MR0175 EN10204-3.1
Accuracy	0,1% "PLATINUM" 0,075%
Process temperature	-40 °C...85 °C (-40 °F...185 °F)
Pressure measuring range	10mbar...40bar (0.15...580psi)
Main wetted parts	316L
Material process membrane	316L, AlloyC,
Measuring cell	10 mbar...40 bar (0.15...580 psi)
Measuring principle	Differential pressure
Product headline	Digital transmitter with metallic measuring diaphragms Compact size Modular transmitter Long-term stability
Max. measurement error	0,1% "PLATINUM" 0,075%
Max. process pressure	10mbar...40bar (0.15...580psi)
Medium temperature range	Temperature gradient from pressure piping
Display/Operation	Option
Outputs	4...20mA HART
Digital communication	HART
Hazardous area approvals	ATEX, FM, CSA, IECEx, INMETRO, NEPSI, TIIS
Functional safety	SIL
Material certificates	NACE MR0103 NACE MR0175 EN10204-3.1
Accuracy	0,1% "PLATINUM" 0,075%
Process temperature	-40 °C...85 °C (-40 °F...185 °F)
Pressure measuring range	10mbar...40bar (0.15...580psi)
Main wetted parts	316L
Material process membrane	316L, AlloyC,
Measuring cell	10 mbar...40 bar (0.15...580 psi)
Measuring principle	Differential pressure
Product headline	Digital transmitter with metallic measuring diaphragms Compact size Modular transmitter Long-term stability
Max. measurement error	0,1% "PLATINUM" 0,075%
Max. process pressure	10mbar...40bar (0.15...580psi)
Medium temperature range	Temperature gradient from pressure piping
Display/Operation	Option
Outputs	4...20mA HART
Digital communication	HART
Hazardous area approvals	ATEX, FM, CSA, IECEx, INMETRO, NEPSI, TIIS
Functional safety	SIL
Material certificates	NACE MR0103 NACE MR0175 EN10204-3.1

Product is getting phased out

New alternatives available

Phase out policy

Product status

Differential pressure Deltabar PMD55

Phase out

Differential pressure Deltabar PMD55

Product information

Selection of compatible products

Spare parts and accessories

Choose from our suggested options

Spare parts and accessories

Selection of compatible products

My Endress+Hauser

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Product is getting phased out

New alternatives available

Phase out policy

Product status

Differential pressure Deltabar PMD55 Phase out

Differential pressure Deltabar PMD55

Product information

Selection of compatible products

Spare parts and accessories

Choose from our suggested options

Spare parts and accessories

Selection of compatible products

Products & Services

Industries

Support

Company

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Differential pressure Deltabar PMD55

Phase out