Description
PRODUCT DESCRIPTION
Endress Hauser Differential Pressure Transmitter, 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.
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
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
FEATURE AND SPECIFICATION:
Liquid:
| 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 |
|
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 |
|
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 |
|
| Process temperature | -40°C…85°C (-40°F…185°F) |
|
| Ambient temperature | -40°C…85°C (-40°F…185°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 | |
| Communication | 4…20mA HART PROFIBUS PA FOUNDATION Fieldbus |
|
| Certificates / Approvals | ATEX, FM, CSA, CSA C/US, IEC Ex, TIIS, INMETRO, NEPSI | |
| Safety approvals | SIL | |
| Design approvals | NACE MR0175 EN10204-3.1 |
|
Gas:
| 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 |
|
Continuous Liquid:
| 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…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, TIIS, 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 |
|
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