Technical Data
CompareContinuous / Liquids
| Measuring Principle | Hydrostatic |
| Characteristic / Application | Pressure transmitter for hydrostatic level measurement with flush mounted metallic Contite measuring cell: Hermetically sealed, condensate-resistant and climatic-proofed Rod version |
| Specialities | Modularity to differential pressure and process pressure devices (replacable display, universal electronics) diagnostic functions Hermetically sealed Contite measuring cell (condensate-resistant and climatic-proofed) |
| Supply / Communication | 4...20mA HART: 10,5...45V DC Ex ia: 10,5...30V DC PROFIBUS PA / FOUNDATION Fieldbus: 9...32V DC (Non Ex) |
| Accuracy | Standard 0.2% Optional 0.1% |
| Long term stability | 0.05 % of URL/ year |
| Ambient temperature | -40°C...85°C (-40°F...185°F) |
| Process temperature | -10°C...85°C (14°F…212°F) |
| Process pressure / max. overpressure limit | 40 bar (600 psi) |
| Pressure measuring range | 100 mbar...10 bar (1.5 psi...150 psi) |
| Main wetted parts | Alloy C 316L optional coating AuPt |
| Process connection | Thread: G1 1/2, MNPT1 1/2 Flange: DN40...DN100, ASME 2"...4", JIS 10K |
| Max. measurement distance | 100m (328ft) H2O |
| Communication | 4...20 mA HART PROFIBUS PA FOUNDATION Fieldbus |
| Certificates / Approvals | ATEX, FM, CSA, CSA C/US, IEC Ex, INMETRO, NEPSI |
| Safety approvals | Overfill protection WHG SIL |
| Design approvals | EN 10204-3.1 NACE MR0175 |
| Drinking water approvals | KTW/ NSF |
| Options | Separate housing Initial device settings Overvoltage protection |
| Application limits | If pressurized, usage of two pressure transmitters to measure the differential pressure (electronic dP) Observe ratio head pressure : hydrostatic pressure |
Pressure
| Measuring Principle | Hydrostatic pressure |
| Characteristic | Pressure transmitter for hydrostatic level measurement with flush mounted metallic Contite measuring cell: Hermetically sealed, condensate-resistant, climatic-proofed and with lowest temperature influences Rod version |
| Supply voltage | 4...20 mA HART 10,5...45 VDC (Non Ex): Ex ia: 10,5...30 VDC PROFIBUS PA: 9...32 VDC (Non Ex) FOUNDATION Fieldbus: 9...32 VDC (Non Ex) |
| Reference Accuracy | Standard 0.2 % Optional 0.1 % |
| Long term stability | 0.05 % of URL/year |
| Process temperature | -10°C...85°C (14°F…212°F) |
| Ambient temperature | -40°C...85°C (-40°F...185°F) |
| Measuring cell | 100 mbar...10 bar (1.5 psi...150 psi) |
| Smallest calibratable span | 10 mbar (1.45 psi) |
| Vacuum resistance | 0 mbar abs. |
| Max. Turn down | 100:1 |
| Max. overpressure limit | 40 bar (600 psi) |
| Process connection | Thread: G1 1/2, MNPT1 1/2 Flange: DN40...DN100, ASME 2"...4", JIS 10K |
| Material process membrane | 316L, AlloyC Gold-Rhodium |
| Material gasket | Viton, EPDM, Kalrez, none |
| Fill fluid | Inert oil, Synthetic 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, UK Ex |
| Safety approvals | Overfill protection WHG SIL |
| Design approvals | EN10204-3.1 NACE MR0175 |
| Drinking water approvals | KTW/ NSF |
| Specialities | Modularity to differential pressure and process pressure devices (replacable display, universal electronics) Diagnostic functions |
The Deltapilot FMB51 rod sensor uses the CONTITE measuring cell with a fixed process connection and is mainly used in the environmental sector to measure the level of liquid or paste-like media in open or closed vessels, with measurement unaffected by foam. The design complies with IEC 61508 and meets SIL2 functional safety requirements.
Advantages
Excellent repeatability and long-term stability
Turndown ratio: 100:1
Fully sealed CONTITE measuring cell: condensation-resistant, weather-protected; high reference accuracy: ±0.2%, optional: ±0.1%; minimal temperature influence
Point-to-point modules for measuring differential pressure, static pressure and pressure (Deltabar M - Deltapilot M - Cerabar M), e.g. replaceable display, universal electronics
Simple commissioning without operating tools
Areas of application
Hydrostatic sensors can be used for the following measurements:
Hydrostatic measurement of liquid and paste-like media in the process industry, process measurement, pharmaceutical and food industries
Measurement of liquid level, volume or mass
Spare Parts & Accessories 39
39 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 71111056 | Atmospheric compensation filter portConsists of: Vent screw 304. Pressure compensation filter. O-ring EPDM, protection lid. Usage: FMB50, FMB51, FMB52, FMB53, FMD71, FMD72, FMD76, FMD77, FMD78, FMR60B, FMR62B, FMR63B, FMR66B, FMR67B, PMC51, PMC71, PMD70, PMD75, PMP71, PMP75, PMP51, PMP55. | Details |
| 71219639 | Atmospheric compensation filter portConsists of: vent screw 304. Pressure compensation filter. O-ring VMQ, protection lid. Usage: housing T17, FMB70, FMD76/FMD77/FMD78, PMC71, PMD70/PMD75, PMP71/ PMP75. Housing F15 at B1,BB,BD,BF,GA,ID,I1, FMB50/FMB51/FMB52/FMB53, PMC51, PMP51/PMP55. | Details |
| 52027000 | Stainless Steel CoverGasket 67,5x2,9x1,5 VMQ/PTFE Stainless steel housing F15 | Details |
| 52027002 | Window cover with gasketSight glass: glass Gasket 67,5x2,9x1,5 VMQ/PTFE Stainless steel housing F15 | Details |
| 52028207 | Window cover with gasketSight glass: Polycarbonat PC Gasket 67,5x2,9x1,5 VMQ/PTFE for use in non-hazardous area (EEx ia) Stainless steel housing F15 | Details |
| 52028267 | Stainless steel cover with windowSight glass: Glass Claw for cover Gasket 67,5x2,9x1,5 VMQ/PTFE for dust Ex version Stainless steel housing F15 Cerabar M | Details |
| 52028268 | Stainless Steel CoverClaw for cover Gasket 67,5x2,9x1,5 VMQ/PTFE Stainless steel housing F15 Cerabar M | Details |
| 71092705 | Aluminum coverMaterial: aluminium. O-ring: EPDM. Not for Ex d/XP. Usage: FMB50/FMB51/FMB52/FMB53, FTC260/FTC262, PMC51, PMD55, PMP51/PMP55. | Details |
| 71092707 | Aluminum coverMaterial: aluminium. Sight glass: mineral glass. O-ring: EPDM. Not for Ex d/XP. Usage: FMB50/FMB51/FMB52/FMB53, FTC260/FTC262, PMC51, PMD55, PMP51/PMP55. | Details |
| 52020429 | Seal ring assemblyconsists of: 5x O-ring 75,87x2.62, EPDM, PTFE, FDA | Details |
| 52028179 | gasketProfile gasket for cover Stainless steel housing F15 | Details |
| 52002449 | cable glandconsists of: cable gland M20 gasket NBR plug Pg13.5 Cerabar M | Details |
| 52005984 | plug connectorwith gasket for Aluminium and stainless steel housing | Details |
| 52020763 | plug connectorCerabar S PMC71, PMP71/PMP75 Deltabar S PMD70/PMD75,FMD76/FMD77/FMD78 Deltapilot S FMB70 | Details |
| 52020762 | plug connectorHarting plug set Cerabar S PMC71, PMP71/PMP75 Deltabar S PMD70/PMD75,FMD76/FMD77/FMD78 Deltapilot S FMB70 | Details |
| 71092709 | cable glandConsists of: cable gland M20, synthetic. O-ring 17.0x2.0 EPDM + PTFE/FDA. Usage: housing F30/31, FMB50/FMB51/FMB52/FMB53, PMC51, PMD55, PMP51/PMP55. | Details |
| 71092711 | cable glandConsists of: cable gland M20, metal. O-ring 17.0x2.0 EPDM + PTFE/FDA. Usage: housing F15/F31, FMB50/FMB51/FMB52/FMB53, PMC51, PMP51/PMP55, housing F30 PMD55. | Details |
| 71092712 | cable entryConsists of: gasket 18.72x2.51 NBR 70. Adapter M20 > G1/2. Not for Ex d. Usage: FMB50/FMB51/FMB52/FMB53, PMC51, PMD55, PMP51/PMP55. | Details |
| 71120017 | plug valve connectorConsists of: plug, seal, screw. Usage: FMB50/FMB51/FMB52/FMB53, PMC51, PMD55, PMP51/PMP55. | Details |
| 71290825 | Grounding terminalConsists of: spring washer, screw, earth handle, clamp. Usage: housing T14/T15/T17, FMB70, FMD71/FMD72/ FMD77/FMD78, PMC71, PMP71/PMP75, PMD70/PMD75. Housing F30/F31, FMB50/FMB51/FMB52/ FMB53, PMC51, PMD55, PMP51/PMP55. | Details |
Configurator / Comparison
Source:Endress+Hauserwebsite public information
Measuring principle video
Click to playManuals & Documents 11
All documents for this model11 documents · click to expand
Cerabar M, Deltabar M, Deltapilot M HART (V 01.00.zz) Chinese
操作手册 Cerabar M PMC51, PMP51, PMP55 Deltabar M PMD55 Deltapilot M FMB50/51/52/53 Chinese
Cerabar M / Deltabar M / Deltapilot M, Operating Instructions FOUNDATION Fieldbus Chinese
Cerabar M /Deltabar M /Deltapilot M Operating Instructions PROFIBUS PA Chinese
Cerabar M, Deltabar M, Deltapilot M HART (V 01.00.zz) English
Cerabar M / Deltabar M / Deltapilot M, Operating Instructions FOUNDATION Fieldbus English
Cerabar M /Deltabar M /Deltapilot M Operating Instructions PROFIBUS PA English
TI 焊接接头、过程转接头和法兰 Chinese
TI Deltapilot M FMB50, FMB51, FMB52, FMB53 Chinese
TI Weld-in adapter, process adapter and flanges English
TI Deltapilot M FMB50, FMB51, FMB52, FMB53 English
Case Studies
Municipal Wastewater Treatment · Static Pressure Measurement — Application Case
Project Background
The project covers the inlet, biological and outlet stages of a municipal plant. The work centres on Static Pressure Measurement and the core task is inferring vessel level or density from hydrostatic pressure.
Operating Challenges
The medium and duty are characterised by high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. So Static Pressure Measurement cannot be specified generically — it calls for choosing range by tank height, density and pressurisation.
Solution
The Ainstru engineering team worked through the pressure range: pressure solution matched to process pressure and temperature. The configuration involves choosing range by tank height, density and pressurisation, with these requirements in view: stable compliance with Grade 1A discharge limits and online data reporting.
Results
Since start-up the system has run steadily; the practical result is submersible mounting that avoids civil works in pit and sump retrofits.
Food & Beverage · Static Pressure Measurement — Application Case
Project Overview
The site is dosing, pasteurising, filling and CIP stages. The customer wanted Static Pressure Measurement properly configured on the existing plant, with the aim of inferring vessel level or density from hydrostatic pressure.
Technical Challenges
What actually causes trouble is syrups, dairy and beverages that scale easily, under strict hygienic requirements, and frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. All of this means the Static Pressure Measurement configuration has to involve choosing range by tank height, density and pressurisation.
Configuration
Supply and installation were organised through the pressure range: pressure solution matched to process pressure and temperature. On site this meant choosing range by tank height, density and pressurisation, checked line by line against: food-safety and hygienic design per 3-A / EHEDG.
Performance
After commissioning the outcome is submersible mounting that avoids civil works in pit and sump retrofits, and the readings are now used for process tuning.
Chemical & Pharmaceutical · Static Pressure Measurement — Application Case
Site Conditions
This is a Chemical & Pharmaceutical customer whose plant is at reactors, metering vessels and finished-product tanks. The main task was inferring vessel level or density from hydrostatic pressure.
The Problem
The difficulty lies in highly corrosive media with solvents and crystallisation, partly in explosive atmospheres; at the same time corrosion plus Ex protection shortens instrument life and makes downtime costly. Specification therefore means choosing range by tank height, density and pressurisation.
What We Did
We took a pressure range approach — pressure solution matched to process pressure and temperature. Delivery was built around choosing range by tank height, density and pressurisation, with point-by-point checks on: Ex certification and GMP traceability of records.
Operating Outcome
In service the system performs as intended — submersible mounting that avoids civil works in pit and sump retrofits, with routine maintenance falling noticeably.
Power & Energy · Static Pressure Measurement — Application Case
Application Context
boiler feedwater, turbine condensate and FGD/DeNOx systems is a typical Power & Energy duty. The project started from Static Pressure Measurement, focusing on inferring vessel level or density from hydrostatic pressure.
Process Constraints
drift under high temperature and pressure, with very costly unplanned outages, and high temperature and pressure with both steam and saline water only amplify it. The Static Pressure Measurement specification must therefore cover choosing range by tank height, density and pressurisation.
Delivery Approach
Delivery was handled as the pressure range — pressure solution matched to process pressure and temperature. Execution centred on choosing range by tank height, density and pressurisation, together with compliance with power-industry codes and unit availability targets.
Field Results
Operation shows the benefit clearly — submersible mounting that avoids civil works in pit and sump retrofits, with confidence in this measuring point improving markedly.
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