FMD72 Deltabar

Field of application

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.

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

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

• 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 (0.15 psi)

• 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, UK Ex

• Design approvals

  NACE MR0175,
  EN10204-3.1,

• Hygienic approvals

  EHEDG
  3A