Endress+Hauser
Electronic differential pressure Deltabar FMD71
- SKU:
- Electronic differential pressure Deltabar FMD71 series
- Weight:
- 0.00 Grams
Description
Application
The Deltabar FMD71 is an electronic differential pressure (dp) measurement system designed to monitor the pressure, level, volume, or mass of liquids in pressurized tanks or distillation columns/evaporators. It uses two sensors: the high-pressure (HP) sensor to measure hydrostatic pressure and the low-pressure (LP) sensor to gauge head pressure. By processing these two digital readings, the transmitter calculates the liquid level. This electronic dp system addresses and overcomes the challenges posed by conventional mechanical differential pressure systems.
Ideal for measuring differential pressure, level, volume, or mass of liquids in pressurized tanks and distillation columns/evaporators.
Specifications:
- Process connections: Threads, flanges, and hygienic options
- Process temperature range: -40 to +150°C (-40 to +302°F)
- Measurement range: 100mbar to +40bar (6 to 600psi)
- Accuracy: ±0.05% for single sensors; ±0.07% for the system
- Certifications: International explosion protection and hygienic approvals
Benefits
- Eliminates mechanical issues typical of traditional systems, enhancing process reliability and availability.
- Features an overload-resistant, high-purity ceramic sensor (99.9% Al2O3).
- The electronic differential pressure system's architecture minimizes safety risks.
- Lower total cost of ownership due to reduced installation time, maintenance, downtime, and fewer spare parts.
- Provides multivariable level measurement, offering HART-based data on differential pressure, head pressure, and sensor temperatures from a single system.
- Continuous health monitoring of the system is ensured via HART-based diagnostics.
- High reproducibility and long-term stability.
SPECIFICATIONS
Pressure Specifications
Measuring principle | Differential pressure |
Characteristic |
Electronic differential pressure transmitter with ceramic sensor (Ceraphire) for level, volume or mass measurement in liquids. |
Supply voltage |
4...20 mA HART: 12...45V DC (Non Ex) Ex ia: 12...30V DC |
Reference Accuracy |
0.075% of individual sensor, "PLATINUM" 0.05% of individual sensor |
Long term stability | 0.05% of URL/year of individual sensor |
Process temperature |
–25...+150°C (–13...+302°F) |
Ambient temperature |
–40...+80°C (–40...+176°F) |
Measuring cell |
100 mbar...40 bar (1.5 psi...600 psi) |
Vacuum resistance | 0 mbar |
Max. Turn down | 100 : 1 |
Max. overpressure limit | 60 bar (900 psi) |
Process connection |
Threads Flansch (DIN, ASME, JIS) |
Process connection hygienic |
DIN11851 DIN11864-1 Tri-Clamp DRD Varivent |
Material process membrane |
Ceramic 316L, AlloyC |
Material gasket |
Viton, Kalrez, EPDM, NBR, Silicone |
Fill fluid |
Silicone Oil |
Material housing |
Die-cast aluminum Stainless steel |
Communication | 4...20 mA HART |
Certificates / Approvals | ATEX, FM, CSA, IECEx, NEPSI, INMETRO, UK Ex |
Design approvals |
NACE MR0175, EN10204-3.1,
|
Hygienic approvals |
EHEDG, 3A |
Continuous / Liquids Specifications
Measuring principle | Differential pressure |
Characteristic / Application | Electronic differential pressure transmitter with ceramic sensor (Ceraphire) for level, volume or mass measurement in liquids. |
Supply / Communication |
4...20 mA HART: 12...45V DC Exia: 12...30V DC |
Accuracy |
0.075% of individual sensor, "PLATINUM" 0.05% of individual sensor |
Long term stability |
0.05% of URL/year of individual sensor |
Ambient temperature |
–40...+80°C (–40...+176°F) |
Process temperature |
–25...+150°C (–13...+302°F) |
Process pressure / max. overpressure limit | 60 bar (900 psi) |
Pressure measuring range |
100mbar...40bar (1.5psi...600psi) |
Process connection |
Threads Flanges (DIN, ASME, JIS) |
Process connection hygienic |
DIN11851 DIN11864-1 Tri-Clamp DRD Varivent |
Communication | 4...20 mA HART |
Certificates / Approvals | ATEX, FM, CSA, CSA C/US, IEC Ex, NEPSI, INMETRO |
Design approvals |
NACE MR0175 EN10204-3.1 |
Hygienic approvals |
FDA 3A |
Options |
4-line digital display SS- or Aluminium housing |
Application limits |
Use Software Applicator Sizing Electronic DP |
Documents
You may want to read this product's catalog. If so, please click to view the Endress+Hauser Electronic differential pressure Deltabar FMD71 Series datasheet.