Endress+Hauser Differential pressure Deltabar FMD78

Differential pressure transmitter with two diaphragm seals for differential pressure and level

Category: E+H

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Description

Differential pressure transmitter with two diaphragm seals for differential pressure and level

Specifications

Characteristic	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	-70°C…400°C (-94°F…752°F)
Ambient temperature	-50°C…85°C (-58°F…185°F)
Measuring cell	100 mbar…40 bar (40 inH2O…600 psi)
Smallest calibratable span	5 mbar (0.075 psi)
Vacuum resistance	50 mbar (0.73 psi)
Max. Turn down	100:1
Max. overpressure limit	160 bar (2400 psi)
Process connection	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, UK Ex
Safety approvals	SIL
Design approvals	NACE MR0175 EN10204-3.1
Hygienic approvals	NACE MR0175 EN10204-3.1
Marine approvals	GL/ ABS
Specialities	Diagnostic functions TempC Membrane
Successor	PMD78B