Endress+Hauser Electronic differential pressure Deltabar FMD71

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

Category: E+H

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Description

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

Specifications

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

Specs at a glance

Pressure measuring range	100mbar…40bar (1.5psi…600psi)
Process pressure / max. overpressure limit	60 bar (900 psi)
Accuracy	0.075% of individual sensor, “PLATINUM” 0.05% of individual sensor
Main wetted parts	Ceramic 316L, Alloy C
Process temperature	–25…+150°C (–13…+302°F)
Max. measurement distance	4000 m (13.123 ft) H2O
Material process membrane	316L, AlloyC, Rhodium>Gold
Measuring cell	100 mbar…40 bar (1.5 psi…600 psi)
Field of application	The Deltabar FMD71 is an electronic differential pressure system used to measure pressure, level, volume, or mass of liquids in pressurized tanks or distillation columns/evaporators. The high pressure sensor (HP) measures the hydrostatic pressure, while the low pressure sensor (LP) measures the head pressure. The level is then calculated in the transmitter using these two digital values. This electronic differential pressure system eliminates the issues associated with 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
Temperature	-40 up to +150°C (-40 to +302°F)
Measuring range	100mbar to +40bar (6 to 600psi)
Accuracy	Single sensor up to ±0.05%, system up to ±0.07%
International explosion protection certificates	SIL, hygienic approvals, marine approvals
Benefits	Eliminates traditional mechanical issues resulting in greater process availability and reliability Overload-resistant high purity ceramic sensor (99.9% Al2O3) 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