Endress+Hauser
Endress+Hauser Differential pressure Deltabar FMD77
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Accuracy | 0,075% + influence of diaphragm seal |
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Process temperature | -40°C...400°C (-40°F...752°F) |
Pressure measuring range | 100mbar...16bar (1.5psi...230 psi) |
Process pressure / max. overpressure limit | 160bar (2400 psi) |
Main wetted parts | Alloy C276 316L Monel Tantalum |
Max. measurement distance | 160m (525ft) H2O |
Material process membrane | 316L, AlloyC, Tantal, Gold-Rhodium, PTFE |
Measuring cell | 100 mbar...16 bar (40 inH20...240 psi) |
Measuring principle | Differential pressure |
Characteristic | Digital transmitter with metallic measuring diaphragms, one side with diaphragm seal Modular transmitter Long-term stability Secondary process barrier enhanced saftey via self diagnostic functions |
Supply voltage | 4...20mA 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 | -40°C...400°C (-40°F...752°F) |
Ambient temperature | -50°C...85°C (-58°F...185°F) |
Measuring cell | 100 mbar...16 bar (40 inH20...240 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 | Low pressure side: 1/4-18NPT RC1/4" High pressure side: Flanges (DIN, ASME, JIS) |
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 |
Specialities | Diagnostic functions |
Successor | PMD78B |
Measuring principle | Differential pressure |
Characteristic / Application | Digital transmitter with metallic measuring diaphragms one side with diaphragm seal Modular transmitter Long term stability Enhanced safety via self diagnostic functions Secondary process barrier |
Supply / Communication | 4...20 mA HART: 10,5...45V DC Ex ia: 10,5...30V DC PROFIBUS PA / FOUNDATION Fieldbus: 9...32V DC |
Accuracy | 0,075% + influence of diaphragm seal |
Long term stability | 0,05% of URL/year |
Ambient temperature | -50°C...85°C (-58°F...185°F) |
Process temperature | -40°C...400°C (-40°F...752°F) |
Process pressure / max. overpressure limit | 160bar (2400 psi) |
Pressure measuring range | 100mbar...16bar (1.5psi...230 psi) |
Main wetted parts | Alloy C276 316L Monel Tantalum |
Process connection | Low pressure side: 1/4-18NPT RC1/4" High pressure side: Flanges (DIN, ASME, JIS) |
Max. measurement distance | 160m (525ft) H2O |
Communication | 4...20 mA HART PROFIBUS PA FOUNDATION Fieldbus |
Certificates / Approvals | ATEX, FM, CSA, CSA C/US, IEC Ex, INMETRO, NEPSI, EAC |
Safety approvals | SIL |
Design approvals | EN10204-3.1 NACE MR0175, MR0103 |
Options | HistoROM/M-Dat 4-line digital display SS- or Aluminiumhousing Separate housing |
Successor | PMD78B |
Application limits | Measuring cell: Metal welded |
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