Endress+Hauser Deltabar FMD77
Differential pressure

Endress+Hauser Deltabar FMD77
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Differential pressure sensor

Accuracy

0,075% + influence of diaphragm seal

Process temperature

-40В°C...400В°C
(-40В°F...752В°F)

Pressure measuring range

100mbar...16bar
(1.5psi...230 psi)

Process pressure absolute / max. overpressure limit

160bar (2400 psi)

Main wetted parts

Alloy C276
316L
Monel
Tantalum

Max. measurement distance

160m (525ft) H2O

Material process membrane

316L, AlloyC,
Tantal,
Gold-Rhodium,
PTFE

Measuring cell

100 mbar...16 bar
(40 inH20...240 psi)

Item Number: Deltabar FMD77
Price on Request
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Total price: 0.00
Delivery standard: 3-6 weeks, depending on the country.
Condition: new
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Multifunctional differential pressure transmitter. For level measurement in closed tanks. Flange mounted Intelligent and highly accurate.

Differential pressure transmitter with one diaphragm seal for level measurement.

Measuring principle

Differential pressure

Characteristic

Digital transmitter with metallic measuring diaphragms, one side with diaphragm seal
Modular transmitter
Long-term stability
Secondary process barrier
enhanced saftey via self diagnostic functions

Supply voltage

4...20mA HART
10,5...45V DC (Non Ex):
Ex ia: 10,5...30V DC
PROFIBUS PA:
9...32 V DC (Non Ex)
FOUNDATION Fieldbus:
9...32 V DC (Non Ex)

Reference Accuracy

0,075% + influence of diaphragm seal

Long term stability

0.08 % of URL/ year
0.14 % of URL/ 5 years
0.27 % of URL/ 10 years

Process temperature

-40В°C...400В°C
(-40В°F...752В°F)

Ambient temperature

-50В°C...85В°C
(-58В°F...185В°F)

Measuring cell

100 mbar...16 bar
(40 inH20...240 psi)

Smallest calibratable span

5 mbar (0.075 psi)

Vacuum resistance

50 mbar (0.73 psi)

Max. Turn down

100:1

Max. overpressure limit

160 bar
(2400 psi)

Process connection

Low pressure side:
1/4-18NPT
RC1/4"
High pressure side:
Flanges (DIN, ASME, JIS)

Material process membrane

316L, AlloyC,
Tantal,
Gold-Rhodium,
PTFE

Material gasket

None, diaphragm seal welded

Fill fluid

Silicone oil,
Inert oil,
Vegetable oil
Low- temperature oil
High- temperature oil

Material housing

316L, Die-cast aluminum

Communication

4...20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus

Certificates / Approvals

ATEX, FM, CSA, CSA C/US, IEC Ex, INMETRO, NEPSI, EAC

Safety approvals

SIL

Design approvals

NACE MR0175
EN10204-3.1

Specialities

Diagnostic functions

Successor

PMD78B

Measuring principle

Differential pressure

Characteristic / Application

Digital transmitter with metallic measuring diaphragms one side with diaphragm seal
Modular transmitter
Long term stability
Enhanced safety via self diagnostic functions
Secondary process barrier

Supply / Communication

4...20 mA HART:
10,5...45V DC
Ex ia: 10,5...30V DC
PROFIBUS PA /
FOUNDATION Fieldbus:
9...32V DC

Accuracy

0,075% + influence of diaphragm seal

Long term stability

0,05% of URL/year

Ambient temperature

-50В°C...85В°C
(-58В°F...185В°F)

Process temperature

-40В°C...400В°C
(-40В°F...752В°F)

Process pressure absolute / max. overpressure limit

160bar (2400 psi)

Pressure measuring range

100mbar...16bar
(1.5psi...230 psi)

Main wetted parts

Alloy C276
316L
Monel
Tantalum

Process connection

Low pressure side:
1/4-18NPT
RC1/4"
High pressure side:
Flanges (DIN, ASME, JIS)

Max. measurement distance

160m (525ft) H2O

Communication

4...20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus

Certificates / Approvals

ATEX, FM, CSA, CSA C/US, IEC Ex, INMETRO, NEPSI, EAC

Safety approvals

SIL

Design approvals

EN10204-3.1
NACE MR0175, MR0103

Options

HistoROM/M-Dat
4-line digital display
SS- or Aluminiumhousing
Separate housing

Successor

PMD78B

Application limits

Measuring cell:
Metal welded


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