Endress+Hauser Deltabar FMD77

Differential pressure

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.

Differential pressure

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

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)

0,075% + influence of diaphragm seal

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

-40В°C...400В°C
(-40В°F...752В°F)

-50В°C...85В°C
(-58В°F...185В°F)

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

5 mbar (0.075 psi)

50 mbar (0.73 psi)

100:1

160 bar
(2400 psi)

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

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

None, diaphragm seal welded

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

316L, Die-cast aluminum

4...20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus

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

SIL

NACE MR0175
EN10204-3.1

Diagnostic functions

PMD78B

Differential pressure

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

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

0,075% + influence of diaphragm seal

0,05% of URL/year

-50В°C...85В°C
(-58В°F...185В°F)

-40В°C...400В°C
(-40В°F...752В°F)

160bar (2400 psi)

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

Alloy C276
316L
Monel
Tantalum

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

160m (525ft) H2O

4...20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus

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

SIL

EN10204-3.1
NACE MR0175, MR0103

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

PMD78B

Measuring cell:
Metal welded