Differential pressure Deltabar PMD55

Differential pressure Deltabar PMD55 – Differential pressure transmitter with metal sensor for measurement of pressure differences

Specifications:

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)
Measuring Cell	10 mbar...40 bar (0.15...580 psi)
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 Process Membrane	316L, AlloyC
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

Field of application

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.

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

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