Description
PRODUCT DESCRIPTION
Endress Hauser Electronic Differential Pressure Deltabar, FMD72
The electronic dp Deltabar FMD72 is a differential pressure system, used to measure the pressure, level, volume or mass of liquids in pressurized tanks or distillation columns/evaporators. The high pressure sensor (HP) measures the hydrostatic pressure. The low pressure sensor (LP) measures the head pressure. The level is calculated in the transmitter using these two digital values. The electronic dp system eliminates issues of traditional differential pressure measurements.
BENEFITS:
- Eliminates traditional mechanical issues resulting in greater process availability and reliability
- Safety risks are minimized with the new electronic differential pressure system architecture and design
- Lowest total cost of ownership due to reduced installation time, maintenance, downtime and spare requirements
- Multivariable level measurement: HART-based differential pressure, head pressure and sensor temperatures from one system
- Continuous health indication of the entire system via HART-based diagnostic
- High reproducibility and long-term stability
- Process safety assured with small flush mounted process connections in hygienic applications
FIELD OF APPLICATION:
For differential pressure, level, volume or mass measurement of liquids in pressurized tanks and distillation columns/evaporators.
- Process connections: Threads, flanges and hygienic connections
- Process temperature: -40 to +125°C (-40 to +257°F), optional 250°C (480°F)
- Measuring range: 400mbar to +40bar (6 to 600psi)
- Accuracy: Single sensor up to ±0.05%, system up to ±0.07%
- International explosion protection certificates, hygienic approvals
FEATURES AND SPECIFICATION:
Pressure:
| Measuring Principle | Differential pressure | |
| Characteristic | Electronic differential pressure transmitter with metal sensor 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 | –40…+125°C (–40…+257°F) |
|
| Ambient temperature | –40…+80°C (–40…+176°F) |
|
| Measuring cell | 400 mbar…10 bar (6 psi…150psi) |
|
| Vacuum resistance | 10 mbar abs. | |
| Max. overpressure limit | 160 bar (2400 psi) | |
| Process connection | Threads Flange (DIN, ASME,JIS) |
|
| Process connection hygienic | DIN11851 DIN11864-1 Tri-Clamp DRD Varivent |
|
| Material process membrane | 316L, AlloyC, | |
| Fill fluid | Silicone oil Synthetic oil |
|
| Material housing | Die-cast aluminum Stainless steel |
|
| Communication | 4…20 mA HART | |
| Certificates / Approvals | ATEX, FM, CSA, IECEx, NEPSI, INMETRO | |
| Design approvals | NACE MR0175, EN10204-3.1, |
|
| Hygienic approvals | EHEDG 3A |
|
Continuous Liquid:
| Measuring Principle | Differential pressure | |
| Characteristic / Application | Electronic differential pressure transmitter with metal sensor for level, volume or mass measurement in liquids. | |
| Supply / Communication | 4…20 mA HART | |
| 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 | –40…+125°C (–40 … +257°F) |
|
| Process pressure absolute / max. overpressure limit | 160 bar (2400 psi) | |
| Pressure measuring range | 400 mbar…10 bar (6 psi…150 psi) |
|
| Main wetted parts | 316L, Alloy C | |
| Process connection | Threads Flange (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 | |
| Options | 4-line digital display SS- or Aluminium housing |
|
| Application limits | Use the Software Applicator Sizing Electronic DP | |
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