FMD72 Electronic differential pressure transmitter

Product Item : FMD72-AA25AAD1H1HGKBCBCYYYYYYA9
Category： Pressure
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
Communication:4...20 mA HART
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Electronic differential pressure Deltabar FMD72

Electronic differential pressure system utilizing two metal sensor modules and one transmitter

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 specifications

Continuous / Liquids

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, IECEx NACE, EN10204-3.1, EHEDG 3A

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)
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
Design approvals	NACE MR0175, EN10204-3.1,
Hygienic approvals	EHEDG 3A