Xi'an Kacise Optronics Co.,Ltd.
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Differential pressure Deltabar FMD77
Field of application
The Deltabar FMD77 differential pressure transmitter with metal sensor uses a one-sided diaphragm seal or diaphragm seals on both sides with a capillary on the low pressure side. Typically used in the process industry for continuous level measurement in liquids. The integrated HistoROM data module makes the management of process and device parameters easy. Designed according to IEC 61508 for use in SIL3 safety applications.
For level, volume or mass measurement in liquids.
Process connections: Threads and flanges
Temperature: -70 to 400°C (-94 to 752°F)
Measuring ranges: 100mbar to 16bar (1.5 to 240psi)
Accuracy: ±0.075%
International explosion protection certificates, overfill prevention WHG, hygienic approvals, marine approvals, SIL
Benefits
Product Description
| 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 |