Differential pressure Deltabar FMD78 Differential pressure transmitter with two diaphragm seals for differential pressure and level F Large variety of different process connections and membrane materials New TempC Membrane for diaphragm seals: Minimum temperature effects and short recovery times 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 20 mA with HART, PROFIBUS PA, FOUNDATION Fieldbus HistoROM data management concept for fast and easy commissioning, maintenance and diagnostics Cost savings with modular concept for easy replacement of sensor, display or electronics Seamless and independent system integration (HART/PA/FF) More information and current pricing: www.endress.com/FMD78 Accuracy 0,075% + influence of diaphragm seal Process temperature -40°C...400°C (-40°F...752°F) Pressure measuring range 100mbar...40bar (1.5psi ... 600 psi) Process pressure absolute / max. overpressure limit 160bar (2400 psi) Main wetted parts Alloy C276 316L Monel Tantalum Field of application: The Deltabar FMD78 differential pressure transmitter with metal sensor uses two capillary diaphragm seals. Typically used in process and hygiene applications for continuous measurement of pressure differences in liquids, vapors, gases and dusts. The integrated HistoROM data modul

process and device parameters easy. Designed according to IEC 61508 for use in SIL3 safety applications. Features and specifications Continuous / Liquids Measuring principle Differential pressure Characteristic / Application Digital transmitter with metallic measuring diaphragms diaphragm seals and capillaries Modular transmitter Long term stability Enhanced safety via self diagnostic functions Secondary process barrier Specialities TempC membrane Supply / Communication 4...20 mA HART: 10,5...45V DC Ex ia: 10,5...30V DC PROFIBUS PA / FOUDATION Fieldbus: 9...32V DC Accuracy 0,075% + influence...

Continuous / Liquids Process temperature -40°C...400°C (-40°F...752°F) Process pressure absolute / max. overpressure limit 160bar (2400 psi) Pressure measuring range 100mbar...40bar (1.5psi ... 600 psi) Main wetted parts Alloy C276 316L Monel Tantalum Process connection Diaphragm seal (Pancakes, threads) Flanges (DIN, ASME) Tri-Clamp ISO2852 Hygienic connections Process connection hygienic Tri-Clamp DIN11851 NEUMO Varivent SMS DRD Universal adapter Max. measurement distance

Continuous / Liquids 4...20 mA HART PROFIBUS PA FOUNDATION Fieldbus Certificates / Approvals ATEX, FM, CSA, CSA C/US, IEC Ex, INMETRO, NEPSI, EAC Safety approvals EN10204-3.1 NACE MR0175, MR0103 Hygienic approvals 3A, EHEDG Marine approval HistoROM/M-Dat 4-line digital display SS- or Aluminiumhousing Separate housing Successor Measuring cell: Metal welded Measuring principle Differential pressure

Digital transmitter with metallic measuring diaphragms diaphragm seals and capillaries Modular transmitter Long-term stability Secondary process barrier enhanced safety via self diagnostic functions. 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 0,075% + influence of diaphragm seal Long term stability 0.08 % of URL/ year 0.14 % of URL/ 5 years 0.27 % of URL/ 10 years Process temperature

Smallest calibratable span 5 mbar (0.075 psi) Vacuum resistance 50 mbar (0.73 psi) Max. Turn down Diaphragm seal (Pancake, threads) Flanges (DIN, ASME) Hygienic connections Tri-Clamp ISO2852 Process connection hygienic Tri-Clamp DIN11851 NEUMO Varivent SMS DRD Universal adapter Material process membrane 316L, AlloyC, Tantal, Gold-Rhodium PTFE Material gasket None, diaphragm seal welded

Fill fluid Silicone oil, Inert oil, Vegetable oil Low- temperature oil High- temperature 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 NACE MR0175 EN10204-3.1 Hygienic approvals Diagnostic functions TempC Membrane Successor

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