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The Endress+Hauser Deltabar PMD55 Differential Pressure Transmitter

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, vapours and gases. Quick Setup with adjustable measuring range allows simple commissioning, reduces costs and saves time. SIL2 according to IEC 61508 / IEC 61511.

Overview :

Product Highlights

  • 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

Field of Application

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
  • Process temperature: -40 to 85°C (-40 to 185°F)
  • Measuring ranges: 0.5mbar to 40bar (0.0072 to 600psi)
  • Accuracy: ±0.1%, "Platinum" ±0.075% (optional)
  • International explosion protection certificates, SIL

Specifications :

Continuous/Liquids
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
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...120°C (-40°F...248°F)
Process Pressure Absolute / Max. Overpressure Limit -40°C...120°C (-40°F...248°F)
Pressure Measuring Range 10mbar...40bar (0.15...580psi)
Main Wetted Parts 316L
Process Connection 1/4-18 NPT
Output 4...20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus
Certificates / Approvals ATEX, FM, CSA, CSA C/US, IEC Ex, TIIS, INMETRO, NEPSI
SIL
NACE
EN10204-3.1
Options Options 4-line digital display
Aluminium housing
Application Limits Measuring cell: Metal weldede


Pressure
Measuring Principle Differential pressure
Characteristic Digital transmitter with metallic measuring diaphragms
Compact size
Modular transmitter
Long-term stability
Supply Voltage 4...20mA 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 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...120°C (-40°F...248°F)
Measuring Cell 10mbar...40bar (0.15...580psi)
Smallest Calibratable Span 0.5 mbar (0.0075 psi)
Max. Turn Down 100:1
Max. Overpressure Limit On One Side: 160 bar (2300 psi)
Process Connection 1/4-18 NPT
Material Process Membrane 316L, AlloyC
Material Gasket Viton, PTFE, EPDM, NBR
Fill fluid Silicone oil, Inert oil
Material Housing Die-cast aluminum
Output 4...20mA HART
PROFIBUS PA
FOUNDATION Fieldbus
Certificates / Approvals ATEX, FM, CSA, CSA C/US, IEC Ex, TIIS, INMETRO, NEPSI
NACE
SIL
EN10204-3.1
Options 4-line digital display
Aluminium housing


Gas/Liquids/Steam
Measuring Principle Differential pressure
Product Headline Digital transmitter with metallic measuring diaphragms
Compact size
Modular transmitter
Long-term stability
Max. Measured 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
Measuring Principle Differential pressure
Product Headline Digital transmitter with metallic measuring diaphragms
Compact size
Modular transmitter
Long-term stability
Max. Measured 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

Video :