Endress+Hauser Deltabar S PMD75, Deltabar S FMD76, Deltabar S PMD70, Deltabar S FMD77, Deltabar S FMD78 Technical Information

Technical Information

Deltabar S PMD70/75, FMD76/77/78

Differential pressure measurement
Differential pressure transmitter with ceramic and silicon sensors
Overload-resistant and function-monitored; Communication via
HART, PROFIBUS PA or FOUNDATION Fieldbus

Application

The Deltabar S differential pressure transmitter is used
for the following measuring tasks:

• Flow measurement (volume or mass flow) in
conjunction with primary devices in gases, vapors and
liquids

• Level, volume or mass measurement in liquids

• Differential pressure monitoring, e.g. of filters and
pumps

• International usage thanks to a wide range of approvals

Your benefits

• Very good reproducibility and long-term stability

• High reference accuracy: up to r0.075 %,
as PLATINUM version: r0.05 %

• Turn down up to 100:1, higher on request

• Used for flow and differential pressure monitoring
up to SIL 3, certified to IEC 61508 by TÜV SÜD

• HistoROM

• Function-monitored from the measuring cell to the
electronics

• Continuous modularity for differential pressure,
hydrostatics and pressure (Deltabar S, Deltapilot S,
Cerabar S), e.g.
– replaceable display
– universal electronics

• Quick commissioning with Quick Setup menu

• Menu-guided operation

• Extensive diagnostic functions

• New TempC diaphragm for diaphragm seals:
Minimum temperature effects and short recovery
times

®

/M-DAT memory module

TI00382P/00/EN/19.14
No. 71254471

Table of contents

Deltabar S

Function and system design. . . . . . . . . . . . . . . . . . . . . 4

Device selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Flow measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Level measurement (level, volume and mass) . . . . . . . . . . . . . . . . 7

Communication protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Explanation of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Signal range – 4 to 20 mA HART . . . . . . . . . . . . . . . . . . . . . . . . 10

Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Load – 4 to 20 mA HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Dead time, time constant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Dynamic behavior: current output . . . . . . . . . . . . . . . . . . . . . . . 11

Dynamic behavior: digital output (HART electronics) . . . . . . . . . 11

Dynamic behavior: PROFIBUS PA . . . . . . . . . . . . . . . . . . . . . . . . 12

Dynamic behavior: FOUNDATION Fieldbus . . . . . . . . . . . . . . . . 13

Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Protocol-specific data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Influence of the operating pressure on zero point and span –

PMD70, FMD76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Total performance – PMD70, FMD76 . . . . . . . . . . . . . . . . . . . . 26

Long-term stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Total error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Warm-up period – PMD70, FMD76 . . . . . . . . . . . . . . . . . . . . . 27

Operating conditions (Installation) . . . . . . . . . . . . . . 28

General installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . 28

Measuring arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Wall and pipe-mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

"Separate housing" version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Turning the housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Oxygen applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Ultrapure gas applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Applications with hydrogen . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Operating conditions (Environment) . . . . . . . . . . . . . 33

Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Overvoltage protection (optional) . . . . . . . . . . . . . . . . . . . . . . . . 33

Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Cable specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Residual ripple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Influence of power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Performance characteristics – general . . . . . . . . . . . . 22

Reference operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Influence of the installation position . . . . . . . . . . . . . . . . . . . . . . 22

Vibration effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Performance characteristics – metal process isolating

diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Reference accuracy – PMD75, FMD77, FMD78 . . . . . . . . . . . . . 23

Thermal change of the zero output and the output span –

PMD75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Influence of the operating pressure on zero point and span – PMD75,

FMD77, FMD78 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Total performance – PMD75 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Long-term stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Total error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Warm-up period – PMD75, FMD77, FMD78 . . . . . . . . . . . . . . . 25

Performance characteristics – ceramic process isolating

diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Reference accuracy – PMD70, FMD76 . . . . . . . . . . . . . . . . . . . 26

Thermal change of the zero output and the output span – PMD70,

FMD76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Operating conditions (Process) . . . . . . . . . . . . . . . . . 34

Process temperature limits (temperature at transmitter) . . . . . . . 34

Process temperature range, seals . . . . . . . . . . . . . . . . . . . . . . . . 34

Pressure specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Mechanical construction . . . . . . . . . . . . . . . . . . . . . . 36

Dimensions of T14 housing, optional display on the side . . . . . . . 36

Dimensions of T15 housing, optional display on the top . . . . . . . 36

Dimensions of T17 housing (hygienic), optional display on

the side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Process connections PMD70 with ceramic process isolating

diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Process connections PMD70 with ceramic process isolating

diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Process connections PMD75 with metal process isolating

diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Process connections PMD75 with metal process isolating

diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Process connections PMD75 with metal process isolating

diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Process connection FMD76 with ceramic process isolating

diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Process connection FMD76 with ceramic process isolating

diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Process connection FMD76 with ceramic process isolating

diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Process connections FMD77 with diaphragm seal,

low-pressure side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Process connections FMD77 with diaphragm seal,

high-pressure side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Process connections FMD77 with diaphragm seal,

high-pressure side (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . 47

2 Endress+Hauser

Deltabar S

Process connections FMD77 with diaphragm seal,

high-pressure side (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Process connections FMD77 with diaphragm seal,

high-pressure side (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . 49

FMD78 basic device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Process connections FMD78 with diaphragm seal . . . . . . . . . . . . 51

Process connections FMD78 with diaphragm seal (continued) . . 52
Process connections FMD78 with diaphragm seal (continued) . . 53
Process connections FMD78 with diaphragm seal (continued) . . 55
Process connections FMD78 with diaphragm seal (continued) . . 57
Process connections FMD78 with diaphragm seal (continued) . . 58
Process connections FMD78 with diaphragm seal (continued) . . 59
Wall and pipe mounting with mounting bracket or separate

housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Material (not wetted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Material (wetted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Filling oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Human interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Local operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Remote operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Hardware and software for onsite and remote operation . . . . . . . 69

Planning instructions, diaphragm seal systems . . . . . 71

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Design and operation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Diaphragm seal filling oils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Response time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Cleaning instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

FMD77 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

FMD78 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

FMD78 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

FMD78 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

FMD78 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Additional documentation . . . . . . . . . . . . . . . . . . . . . 95

Field of Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Brief Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Functional safety manual (SIL) . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Installation/Control Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Overfill prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Configuration data sheet . . . . . . . . . . . . . . . . . . . . . . 97

Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Registered trademarks. . . . . . . . . . . . . . . . . . . . . . . 100

HART® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

PROFIBUS® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

FOUNDATION™ Fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Certificates and approvals . . . . . . . . . . . . . . . . . . . . . 77

CE mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Ex approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Suitability for hygienic processes . . . . . . . . . . . . . . . . . . . . . . . . 77

Marine certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Functional Safety SIL / IEC 61508 Declaration of Conformity

(optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Overfill prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

CRN approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Pressure Equipment Directive (PED) . . . . . . . . . . . . . . . . . . . . . 77

Standards and guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Classification of process sealing between electrical systems and
(flammable or combustible) process fluids in accordance with ANSI/

ISA 12.27.01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . 79

PMD70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

PMD70 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

PMD70 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

PMD75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

PMD75 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

PMD75 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

FMD76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

FMD76 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

FMD76 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

FMD77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

FMD77 (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

3 Endress+Hauser

Device selection

+ –

+ –

Deltabar S

Function and system design

Deltabar S –

PMD70 PMD75 FMD76 FMD77 FMD78

product family

P01-PMD70xxx-16-xx-xx-xx-000

With ceramic process
isolating diaphragms

P01-PMD75xxx-16-xx-xx-xx-000

With metal process
isolating diaphragms

P01-FMD76xxx-16-xx-xx-xx-000

With ceramic process
isolating diaphragms

With metal process
isolating diaphragms
and diaphragm seal
mounted on one side

Field of application – Flow

– Level
– Differential pressure

Process connections – 1/4 – 18 NPT

–RC 1/4

Measuring ranges From –25 to +25 mbar

(-0.375 to +0.375 psi)
to –3 to +3 bar
(-45 to +45 psi)

1)

OPL

On one side: up to
100 bar (1500 psi)
On both sides: up to
150 bar (2250 psi)

Process temperature
range (temperature at

–20 to +85°C
(–4 to +185°F)

–Flow
– Level
– Differential pressure

–1/4 – 18 NPT
–RC 1/4

From –10 to +10 mbar
(-0.15 to +0.15 psi)
to –40 to +40 bar
(-600 to +600 psi)

On one side: up to
420 bar (6300 psi)
On both sides: up to
630 bar (9450 psi)

–40 to +85°C
(–40 to +185°F)

process connection)

Ambient temperature
range

–20 to +85 °C
(-4 to +185 °F)

–40 to +85°C
(–40 to +185°F)

Ambient temperature
range, separate housing

Reference accuracy – Up to r0.075 % of the set span

2)

– Level – Level – Level

Low-pressure side (–):
–1/4 – 18 NPT
–RC 1/4

High-pressure side (+):
– DN 80 – DN 100
–ANSI 3" – 4"
– JIS 80A – 100A

From –100 to +100
mbar (-1.5 to +1.5 psi)
to –3 to +3 bar
(-45 to +45 psi)

On one side: up to
100 bar (1500 psi)

Low-pressure side (–):
–1/4 – 18 NPT
–RC 1/4

High-pressure side (+):
– DN 50 – DN 100
–ANSI 2" – 4"
– JIS 80A – 100A

From –100 to +100 mbar
(-1.5 to +1.5 psi)
to –16 bar to +16 bar
(-240 to +240 psi)

On one side: up to
160 bar (2400 psi)
On both sides: up to
240 bar (3600 psi)

–20 to +85°C
(–4 to +185°F)

Up to +400 °C (752 °F)
(depending on the filling
oil)

–20 to +85°C
(-4 to +185 °F)

–40 to +85 °C
(-40 to +185 °F)

-20 to +60°C

(-4 to +122 °F)

–Up to r0.075 % of the set span

– PLATINUM version: up to r0.05 % of the set span

Supply voltage – Version for non-hazardous areas:

– 4...20 mA HART: 10.5 to 45 V DC
– PROFIBUS PA and FOUNDATION Fieldbus: 9 to 32 V DC

– Ex ia: 10.5 to 30 V DC

Output 4 to 20 mA with superimposed HART protocol, PROFIBUS PA or FOUNDATION Fieldbus

Options – High-pressure version up to p

– PMD75, FMD77, FMD78: gold-rhodium-coated process isolating diaphragm, NACE-compliant material

700 bar (10500 psi)

stat

– Separate housing

P01-FMD77xxx-16-xx-xx-xx-000

2)

P01-FMD78xxx-16-xx-xx-xx-003

With metal process
isolating diaphragms
and capillary
diaphragm seals

– Differential pressure

– Wide range of

diaphragm seals

From –100 to +100 mbar
(-1.5 to +1.5 psi)
to –40 to +40 bar
(-600 to +600 psi)

On one side: up to
160 bar (2400 psi)
On both sides: up to
240 bar (3600 psi)

Up to +400 °C (752 °F)
(depending on the filling
oil)

–40 to +85 °C
(-40 to +185 °F)

2)

4 Endress+Hauser

Deltabar S

➀

➁

➃

➂

➄

1

p

2

p

1

p

2

p

➆
➇

➈

➅

Deltabar S –
product family

Specialties
(options)

1) OPL: over pressure limit; dependent on the lowest-rated element, with regard to pressure, of the selected components

2) Lower temperatures on request

Measuring principle

PMD70 PMD75 FMD76 FMD77 FMD78

– Metal-free

measurement with
PVDF flange

– Available with

Deltatop as flow
compact device

–HistoROM

®

/M-DAT memory module

Ceramic process isolating diaphragm used for
PMD70 and FMD76

–p

to 420 bar

stat

(6300 psi)

– Process isolating

diaphragm: tantalum

– Available with

Deltatop as flow
compact device

– Abrasion-resistant and

corrosion-resistant

– No diaphragm-seal

temperature effects

– Metal-free

measurement possible
with ECTFE-coated
process connection

–For high media

temperatures

Metal process isolating diaphragm used for PMD75,
FMD77 and FMD78

– Wide range of

diaphragm seals

P01-xMD7xxxx-03-xx-xx-xx-000

1 Meter body
2 Process isolating diaphragm
3Electrodes
4 Glass frit fixes the process isolating diaphragm

onto the meter body

5Temperature sensor

6 Sensing element
7 Middle diaphragm
8 Filling oil
9 Process isolating diaphragm

P01-xMD7xxxx-03-xx-xx-xx-003

Ceramic process isolating diaphragm used for PMD70 and FMD76

The ceramic measuring cell is based on the principle of a plate capacitor with an electrode on a meter body (1)
and a movable electrode on the interior of the diaphragm (3). Silicone oil or mineral oil are used as the standard
filling oils for this measuring cell.
A differential pressure (p

zp2) causes a corresponding deflection of both diaphragms. Both capacitance values

1

are converted and are fed to the microprocessor of the transmitter as a digital signal.

Advantages:

• Self-monitoring for process isolating diaphragm break or oil loss (constant comparison of the measured
temperature with a temperature calculated from the capacitance values)

• Extremely high resistance to aggressive media

• Suitable for vacuums up to 1 mbar

(0.015 psi)

abs

• Metal-free versions available

• Secondary containment for enhanced integrity

Metal process isolating diaphragm used for PMD75, FMD77 and FMD78

The process isolating diaphragms (3/9) are deflected on both sides by the acting pressures. A filling oil (4/8)
transfers the pressure to a resistance bridge (semi-conductor technology). The change in the bridge output
voltage, which depends on the differential pressure, is measured and processed further.

Advantages:

• Standard system pressures: 160 bar (2400 psi) and 420 bar (6300 psi)

• High long-term stability

• Very high single-sided overload resistance

Endress+Hauser 5

Flow measurement Design and operation mode

QQ

p

1

p

1

p

2

p

2

Q~

Δp

Q~

Δp

++

––

Flow measurement with Deltabar S and primary device, left: orifice plate and right: Pitot tube

QFlow
'p Differential pressure, 'p = p

1

– p

Deltabar S

P01-PMD7xxxx-15-xx-xx-xx-000

2

Your benefits

• Choice of four flow modes of operation: volume flow, corrected volume flow (European norm conditions),
standard volume flow (American standard conditions) and mass flow.

• Choice of diverse flow units with automatic unit conversion.

• A customized unit can be specified.

• Low flow cut off: when activated, this function suppresses small flows which can lead to large fluctuations
in the measured value.

• Contains two totalizers as standard. One totalizer can be reset to zero.

• The totalizing mode and unit can be individually set for each totalizer. This allows independent daily and
annual quantity totalizing.

• With the Deltatop product family, Endress+Hauser is offering universal and reliable solutions for flow
measurement:
– Deltatop, the compact, ready-to-use flow measuring unit including the Deltabar S differential pressure

transmitter

Note!
For more information about flow measurement with the Deltabar S differential pressure transmitter

• Deltabar S with orifice plate (TI00422P, Deltatop DO6x)

• Deltabar S with Pitot tube (TI00425P, Deltatop DP6x)

6 Endress+Hauser

Deltabar S

Level measurement (level,
volume and mass)

Design and operation mode

–

➀

+

Level measurement with Deltabar S

1 Level measurement via pressure piping and PMD70
2 Level measurement with FMD76
3 Level measurement with FMD78
h Height (level)

'p Differential pressure
U Density of the media

g Gravitation constant

➁

–

h

h=

Δp

ρ g

➂

+

P01xMD7xxxx-15-xx-xx-xx-000

Your benefits

• Choice of three level operating modes.

• Volume and mass measurements in any tank shapes by means of a freely programmable characteristic curve.

• Choice of diverse level units with automatic unit conversion.

• A customized unit can be specified.

• Has a wide range of uses, e.g.
– for level measurement in tanks with pressure overlay
– in the event of foam formation
– in tanks with agitators of screen fittings
– in the event of liquid gases
– for standard level measurement

Communication protocol • 4 to 20 mA with HART communication protocol

• PROFIBUS PA
– The Endress+Hauser devices meet the requirements of the FISCO model.
– Due to the low current consumption of 13 mA ± 1 mA, the following number of devices can be operated

on one bus segment if installing as per FISCO:
– up to 7 Deltabar S for Ex ia, CSA IS and FM IS applications

– up to 27 Deltabar S for all other applications, e.g. in non-hazardous areas, Ex nA, etc.
Further information on PROFIBUS PA can be found in Operating Instructions BA00034S "PROFIBUS DP/
PA: Guidelines for planning and commissioning" and in the PNO Guideline.

• FOUNDATION Fieldbus
– The Endress+Hauser devices meet the requirements of the FISCO model.
– Due to the low current consumption of 15,5 mA ± 1 mA, the following number of devices can be operated

on one bus segment if installing as per FISCO:
– up to 6 Deltabar S for Ex ia, CSA IS and FM IS applications

– up to 24 Deltabar S for all other applications, e.g. in non-hazardous areas, Ex nA, etc.
Further information on FOUNDATION Fieldbus, such as requirements for bus system components can be
found in Operating Instructions BA00013S "FOUNDATION Fieldbus Overview".

Endress+Hauser 7

Deltabar S

Input

Measured variable Differential pressure, from which flow (volume flow or mass flow) and level (level, volume or mass) are derived

Measuring range PMD75, FMD77, FMD78 (with metal process isolating diaphragms)

Nominal
value

lower (LRL) upper (URL) on one side on both

Range limit Smallest

calibratable

5)

span

MWP 1 OPL 2)Min. operating

pressure

3)

Versions in the order

code

PN 160 6)PN 420

sides

[mbar (psi)] [mbar (psi)] [mbar (psi)] [mbar (psi)] [bar (psi)] [bar (psi)] [bar (psi)] [mbar

10 (0.15)

30 (0.45) 7)–30 (-0.45) +30 (+0.45) 0.3 (0.0045) 7C –

100 (1.5) –100 (-1.5) +100 (+1.5) 1/5

7)

–10 (-0.15) +10 (+0.15) 0.25 (0.00375)

(0.015/0.075)

160 (2400) 160 (2400) 240 (3600)

160 (2400) /

8)

420 (6300)

160 (2400) /

9)

420 (6300)

240/630
(3600/9450)

500 (7.5) –500 (-7.5) +500 (+7.5) 5 (0.075) 7F 8F

(psi

abs

0.1 (0.0015)

)]

abs

7B –

7D 8D

3000 (45) –3000 (-45) +3000 (+45) 30 (0.45) 7H 8H

16000 (240) –16000 (-240) +16000 (+240) 160 (2.4) 7L 8L

40000 (600) –40000 (-600) +40000 (+600) 400 (6) "+" side

10)

160 (2400) /
420 (6300)

:

11)

7M 8M

PMD70, FMD76 (with ceramic process isolating diaphragms)

Nominal
value

Range limit Smallest

calibratable

5)

span

MWP

1)

lower (LRL) upper (URL) on one side on both

[mbar (psi)] [mbar (psi)] [mbar (psi)] [mbar (psi)] [bar (psi)] [bar (psi)] [bar (psi)] [mbar

25 (0.375) –25 (-0.375) +25 (+0.375) 0.25 (0.00375) 10 (150) 10 (150) 15 (225)

100 (1.5) –100 (-1.5) +100 (+1.5) 1 (0.015) 16 (240) 16 (240) 24 (360) 7D

500 (7.5) –500 (-7.5) +500 (+7.5) 5 (0.075) 100 (1500) 100 (1500) 150 (2250) 7F

3000 (45) –3000 (-45) +3000 (+45) 30 (0.45) 100 (1500) 100 (1500) 150 (2250) 7H

OPL

2)

sides

Min. operating
pressure

abs

3)

(psi

1 (0.015)

Versions in the
order code

)]

abs

7B

4)

4)

6)

1) The MWP (maximum working pressure; MWP = PN) for the measuring device depends on the lowest-rated element, with regard to pressure, of the selected

components, i.e. the process connection (o ä 36 ff) has to be taken into consideration in addition to the measuring cell (osee Table above). Also observe
pressure-temperature dependency. For the appropriate standards and further information, see o ä 35, "Pressure specifications" section.

2) OPL: over pressure limit depends on the lowest-rated element, with regard to pressure, of the selected components o ä 35, "Pressure specifications" section.

3) The minimum operating pressure indicated in the table applies to silicone oil under reference operating conditions. Min. operating pressure at 85 °C (185 °F)
for silicone oil: up to 10 mbar
FMD77 and FMD78: Min. operating pressure: 50 mbar

(0.15 psi

abs

).

abs

(0.75 psiabs); observe also the pressure and temperature application limits of the selected filling oil

abs

on o ä 73. For vacuum applications, please observe the installation instructions on o ä 75 ff.

4) Version in the order code o ä 79 ff, feature 40 "Nominal range; PN"

5) Turn down > 100:1 on request

6) Screws o ä 61 ff.

7) PMD75 only

8) Minimum span that can be calibrated for PMD75: 1 mbar (0,015 psi); minimum span that can be calibrated for FMD77 and FMD78: 5 mbar (0.075 psi)

9) For PMD75 devices with CRN-approved process connections, the MWP is

• with the use of O rings: 315 bar (4725 psi)

• with the use of PTFE and CU seals: 120 bar (1800 psi)

10) "–" side: 100 bar (1500 psi)

11) 420 bar (6300 psi) only PMD75

8 Endress+Hauser

Deltabar S

–500 mbar

0

+500 mbar

100

LRL

LRV

URL

URV

➁➀

=

➂

➃

➄

–500 mbar

+500 mbar

LRV

URLURV

➂

0

LRL

–300 mbar

➁➀

=

➃

➄

Explanation of terms

Explanation of the terms "turn down (TD)",
"set span" and "zero-based span"

Case 1:

• ~Lower range value (LRV)~ d~Upper range value
(URV)~

Example:

• Lower range value (LRV) = 0 mbar

• Upper range value (URV) = 100 mbar (1.5 psi)

• Nominal value (URL) = 500 mbar (7.5 psi)

Turn down:

•TD = URL /~URV~ 5:1

Set span:

• URV – LRV = 100 mbar (1.5 psi)
This span is based on the zero point.

Case 2:

• ~Lower range value (LRV)~ t~Upper range value
(URV)~

Example:

• Lower range value (LRV) = –300 mbar (4.5 psi)

• Upper range value (URV) = 0 bar

• Nominal value (URL) = 500 mbar (7.5 psi)

Turn down:

•TD = URL / ~(LRV)~ = 1.67:1

Set span:

• URV – LRV = 300 mbar (4.5 psi)
This span is based on the zero point.

P01-xxxxxxxx-05-xx-xx-xx-001

Example: 500 mbar (7.5 psi) measuring cell

P01-xMD7xxxx-05-xx-xx-xx-007

Example: 500 mbar (7.5 psi) measuring cell

1 Set span
2 Zero-based span
3 Nominal value i upper range limit (URL)
4 Nominal measuring range
5 Sensor measuring range
LRL Lower range limit
URL Upper range limit
LRV Lower range value
URV Upper range value

Endress+Hauser 9

Output

U – 10.5 V

R

L

max

23 mA

≤

30

20

10.5

U

[V]

40 45

1282

1500

847

413

[]Ω

R

L

max

30

20

11.5

U

[V]

40 45

1239

1456

804

369

[]Ω

R

L

max

TestTest

➀

➁

U – 11.5 V

R

L

max

23 mA

≤

➂

➃

➂

➃

Output signal • 4 to 20 mA with superimposed digital communication protocol HART 5.0, 2-wire

• Digital communication signal PROFIBUS PA (Profile 3.0)
– signal coding: Manchester Bus Powered (MBP): Manchester II
– data transmission rate: 31.25 KBit/s voltage mode

• Digital communication signal FOUNDATION Fieldbus
– signal coding: Manchester Bus Powered (MBP): Manchester II
– data transmission rate: 31.25 KBit/s voltage mode

Deltabar S

Signal range –

3.8 mA to 20.5 mA

4to20mAHART

Signal on alarm As per NAMUR NE 43

• 4 to 20 mA HART
Options:
– Max. alarm: can be set from 21 to 23 mA (Factory setting: 22 mA)
– Hold measured value: last measured value is held
– Min. alarm: 3.6 mA

• PROFIBUS PA: can be set in the Analog Input block,
Options: Last Valid Out Value (factory setting), Fail Safe Value, Status Bad

• FOUNDATION Fieldbus: can be set in the Analog Input block,
Options: Last Good Value, Fail Safe Value (factory setting), Wrong Value

Load – 4 to 20 mA HART

P01-xMD7xxxx-05-xx-xx-xx-005

Load diagram, observe the position of the jumper and the explosion protection (o ä 20, "Measuring a 4 to 20 mA test
signal" section.)

1 Jumper for 4 to 20 mA test signal set to "Non-test" position
2 Jumper for 4 to 20 mA test signal set to "Test" position
3 Power supply 10.5 (11.5) to 30 V DC for 1/2 G Ex ia, 1 GD Ex ia, 1/2 GD Ex ia, FM IS, CSA IS, IECEx ia, NEPSI Ex ia
4 Power supply 10.5 (11.5) to 45 V DC for device for non-hazardous areas, 1/2 D, 1/3 D, 2 G Ex d, 3 G Ex nA, FM XP,

FM DIP, FM NI, CSA XP, CSA dust ignition proof, NEPSI Ex d

R

Maximum load resistance

Lmax

U Supply voltage

Note!
When operating via a handheld terminal or via a PC with an operating program, a minimum communication

Resolution • Current output: 1 PA

resistance of 250 :must exist within the loop.

• Display: can be set (factory setting: presentation of the maximum accuracy of the transmitter)

10 Endress+Hauser

Deltabar S

I

63 %

100 %

t

t1t

2

90 %

t

3

Dead time, time constant

Presentation of the dead time and the time constant

Dynamic behavior:
current output

Type Measuring cell Dead time (t1)

[ms]

PMD75 max. • 10 mbar (0.15 psi) and 30 mbar (0.45 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

• 16 bar (240 psi)

PMD70,
FMD76

max. • 25 mbar (0.375 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

FMD77,

max. Dependent on the diaphragm seal

FMD78

45 • 450

90 • 4700

P01-xxxxxxxx-05-xx-xx-xx-036

Time constant T63 (t2) [ms] Time constant T90 (t3) [ms]

• 1040

•60

•45

•40

•60

• 138

• 104

• 92

• 138

• 10810

• 280

• 210

• 110

• 644

• 483

• 253

Dynamic behavior: digital

A typical burst rate of 300 ms results in the following behavior:

output (HART electronics)

Type Measuring cell Dead time (t1) [ms] Dead time (t1) +

PMD75 min. • 10 mbar (0.15 psi) and 30 mbar (0.45 psi)

205 • 655

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

• 16 bar (240 psi)

max. • 10 mbar (0.15 psi) and 30 mbar (0.45 psi)

1005 • 1455

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

• 16 bar (240 psi)

PMD70,
FMD76

min. • 25 mbar (0.375 psi)

• 100 mbar (1.5 psi)

250 • 4950

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

PMD70,
FMD76

max. • 25 mbar (0.375 psi)

• 100 mbar (1.5 psi)

1050 • 5750

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

FMD77,

max. Dependent on the diaphragm seal

FMD78

Reading cycle

• Acyclic: max. 3/s, typical 1/s (depends on command # and number of preambles)

Time constant T63 (=t

• 265

• 250

• 245

• 265

• 1065

• 1050

• 1045

• 1065

• 530

• 460

• 360

• 1330

• 1260

• 1160

Dead time (t
Time constant T90 (=t

) [ms]

2

• 1200

• 298

• 264

• 252

• 298

• 2000

• 1098

• 1064

• 1052

• 1098

• 10970

• 804

• 643

• 413

• 11770

• 1604

• 1443

• 1213

1

) +

) [ms]

3

Endress+Hauser 11

Deltabar S

• Cyclic (Burst): max. 3/s, typical 2/s

The Device commands the BURST MODE function for cyclic value transmission via the HART communication
protocol.

Cycle time (Update time)

Cyclic (Burst): min. 300 ms

Response time

• Acyclic: min. 330 ms, typical 590 ms (depends on command # and number of preambles)

• Cyclic (Burst): min. 160 ms, typical 350 ms (depends on command # and number of preambles)

Dynamic behavior:

A typical PLC cycle time of 1 s results in the following behavior:

PROFIBUS PA

Type Measuring cell Dead time (t1) [ms] Dead time (t1) +

PMD75 min. • 10 mbar (0.15 psi) and 30 mbar (0.45 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

•16 bar (240 psi)

max. • 10 mbar (0.15 psi) and 30 mbar (0.45 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

•16 bar (240 psi)

PMD70,
FMD76

PMD70,
FMD76

FMD77,
FMD78

min. • 25 mbar (0.375 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

max. • 25 mbar (0.375 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

max. Dependent on the diaphragm seal

80 • 530

1280 • 1730

125 • 4825

1325 • 6025

Time constant T63 (=t

• 140

• 125

• 120

• 140

• 1340

• 1325

• 1320

• 1340

• 405

• 335

• 235

• 1605

• 1535

• 1435

Dead time (t
Time constant T90 (=t

) [ms]

2

• 1075

• 173

• 139

• 127

• 173

• 2275

• 1373

• 1339

• 1327

• 1373

• 10845

• 679

• 518

• 288

• 12045

• 1879

• 1718

• 1488

1

) +

) [ms]

3

Reading cycle (PLC)

• Cyclic: max. 30/s (dependent on the number and type of function blocks used in a closed-control loop)

• Acyclic: typical 25/s

Cycle time (update time)

min. 200 ms
The cycle time in a bus segment in cyclic data communication depends on the number of devices, on the
segment coupler used and on the internal PLC cycle time. A new value can be determined up to 5 times per
second.

Response time

• Cyclic: approx. 10 to 13 ms (depends on Min. Slave Interval)

• Acyclic: approx. 60 to 70 ms (depends on Min. Slave Interval)

12 Endress+Hauser

Deltabar S

Dynamic behavior:

A typical configuration for the macro cycle time (host system) of 1 s results in the following behavior:

FOUNDATION Fieldbus

Type Measuring cell Dead time (t1)

PMD75 min. • 10 mbar (0.15 psi) and 30 mbar (0.45 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

• 16 bar (240 psi)

max. • 10 mbar (0.15 psi) and 30 mbar (0.45 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

• 16 bar (240 psi)

PMD70,
FMD76

PMD70,
FMD76

FMD77,
FMD78

min. • 25 mbar (0.375 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

max. • 25 mbar (0.375 psi)

• 100 mbar (1.5 psi)

• 500 mbar (7.5 psi)

• 3 bar (45 psi)

max. Dependent on the diaphragm seal

[ms]

90 • 540

1090 • 1540

135 • 4835

1135 • 5835

Dead time (t1) +
Time constant T63 (=t

• 150

• 135

• 130

• 150

• 1150

• 1135

• 1130

• 1150

• 415

• 345

• 245

• 1415

• 1345

• 1245

Dead time (t
Time constant T90 (=t

) [ms]

2

• 1085

• 183

• 149

• 137

• 183

• 2085

• 1183

• 1149

• 1137

• 1183

• 10855

• 689

• 528

• 298

• 11855

• 1689

• 1528

• 1298

1

) +

) [ms]

3

Reading cycle

• Cyclic: max. 10/s (dependent on the number and type of function blocks used in a closed-control loop)

• Acyclic: typical 10/s

Cycle time (update time)

Cyclic: min. 100 ms

Response time

• Cyclic: max. 20 ms (for standard bus parameter settings)

• Acyclic: typical 100 ms (for standard bus parameter settings)

Damping A damping affects all outputs (output signal, display).

• Via onsite display, handheld terminal or PC with operating program, continuous from 0 to 999 s

• Additionally for HART and PROFIBUS PA: via DIP switch on the electronic insert, switch position
"on" = set value and "off"

• Factory setting: 2 s

Endress+Hauser 13

Protocol-specific data HART

Manufacturer ID 17 (11 hex)

Device Type Code 23 (17 hex)

Device Revision 21 (15 hex) - SW version 02.1y.zz

HART spezification 5

DD Revision • 4 (russian in language selection)

Device description files
(DTM, DD)

HART load Min. 250 :

HART device variables The measured values can be freely assigned to the device variables:

Supported functions • Burst mode

Deltabar S

• 3 (netherlands in language selection)

Information and files can be found:

• www.endress.com

• www.hartcomm.org

Measured values for PV (primary variable)

• Pressure

•Flow

• Level

• Tank content

Measured values for SV, TV (second and third variable)

• Pressure

• Totalizer

Measured values for QV (fourth variable)

• Temperature

• Additional Transmitter Status

• Device Locking

• Alternative operating modes

PROFIBUS PA

Manufacturer ID 17 (11 hex)

Ident number 1542 hex

Profile Version 3.0

GSD Revision • 4 (SW Version 3.00.zz and 4.00.zz)

DD Revision • 1 (SW Version 3.00.zz and 4.00.zz)

GSD File Information and files can be found:

DD Files

Output values Measured values for PV (über Analog Input Function Block)

Input values Input value sent from PLC, can be shown on display

• SW Version 03.00.zz

• SW Version 04.00.zz

3.02

• SW Version 04.01.zz (Device Revision 3)
Compartibility SW version 03.00.zz and higher.

•5 (Device Revision 3)

•1 (Device Revision 3)

• www.endress.com

• www.profibus.org

• Pressure

•Flow

• Level

• Tank content

Measured values for SV

• Pressure

• Temperature

Measured values for QV

• Totalizer

14 Endress+Hauser

Deltabar S

Supported features • Identification & Maintenance

Simple device identification via control system and nameplate

•Condensed status

• Automatic ident number adaptation and switchable to following ident
numbers

1)

)

:

– 9700: Profile-specific transmitter identification number with the "Classic" or

"Condensed" status".

– 1504: Compatibility mode for the old Deltabar S generation (FMD230,

FMD630, FMD633, PMD230, PMD235).

– 1542: Identification number for the new Deltabar S generation (FMD76,

FMD77, FMD78, PMD70, PMD75).

• Device locking: The device can be locked by hardware or software.

1) Only with Profile Version 3.02

FOUNDATION Fieldbus

Manufacturer ID 452B48 hex

Device type 1009 hex

Device Revision • 6 - SW Version 03.00.zz

• 7 - SW Version 04.00.zz (FF-912)

DD Revision • 3 (Device Revision 6)

•2 (Device Revision 7)

CFF Revision • 4 (Device Revision 6)

DD Files Information and files can be found:

CFF Files

Device Tester Version (ITK
Version)

ITK Test Campaign Number • IT054700 (Device Revision 6)

Link Master (LAS) capable yes

Link Master / Basic Device
selectable

Node Address Default: 247 (F7 hex)

Supported features Field Diagnostics Profile

Number of VCRs • 44 (Device Revision 6)

Number of Link Objects in VFD 50

•1 (Device Revision 7)

• www.endress.com

• www.fieldbus.org

• 5.0 (Device Revision 6)

• 6.01 (Device Revision 7)

• IT085400 (Device Revision 7)

Yes, default is Basic Device

1)

Following methods are supported:

•Restart

• Configure error as warning or alarm

•HistoROM

• Peakhold

•AlarmInfo

•SensorTrimm

• 24 (Device Revision 7)

1) Only with FF912

Endress+Hauser 15

Virtual communication references (VCRs)

Device Revision 6 Device Revision 7

Permanent Entries 44 1

Client VCRs 0 0

Server VCRs 5 10

Source VCRs 8 43

Sink VCRs 0 0

Subscriber VCRs 12 43

Publisher VCRs 19 43

Link settings

Device Revision 6 Device Revision 7

Slot time 4 4

Min. inter PDU delay 12 10

Max. response delay 10 10

Deltabar S

Transducer Blocks

Block Content Output values

TRD1 Block Contains all parameters related to the measurement • Pressure, flow or level (channel 1)

Service Block Contains service information • Pressure after damping (channel 3)

Dp Flow Block Contains flow and totalizer parameter Totalizer 1 (channel 6)

Diagnostic Block Contains diagnostic information Error code via DI channels (channel 0 to 16)

Display Block Contains parameters to configure the onsite display No output values

• Process temperature (channel 2)

• Pressure peakhold indicator (channel 4)

• Counter for max. pressure transgressions
(channel 5)

16 Endress+Hauser

Deltabar S

Function blocks

Block Content Number

of blocks

Resource Block The Resource Block contains all the data that

uniquely identify the device. It is an electronic
version of a nameplate of the device.

Analog Input Block 1
Analog Input Block 2
Analog Input Block 3

Digital Input Block This block contains the discrete data of the Diagnose

Digital Output Block This block converts the discrete input and thus

PID Block The PID Block serves as a proportional-integral-

Arithmetic Block This block is designed to permit simple use of popular

Input Selector Block The Input Selector Block facilitates the selection of up

Signal Characterizer Block The Signal Characterizer Block has two sections,

Integrator Block The Integrator Block integrates a variable as a

Analog Alarm Block This block contains all process alarm conditions

The AI Block receives the measuring data from the
Sensor Block, (selectable via a channel number) and
makes the data available to other function blocks at
its output. Enhancement: digital outputs for process
alarms, fail safe mode.

Block (selectable via a channel number 0 to 16) and
provides them for other blocks at the output.

initiates an action (selectable via a channel number)
in the DP Flow Block or in the Service Block.
Channel 1 resets the counter for max. pressure
transgressions..

derivative controller and is used almost universally
for closed-loop-control in the field including cascade
and feedforward. Input IN can be indicated on the
display. The selection is performed in the Display
Block (DISPLAY_MAIN_LINE_CONTENT).

measurement math functions. The user does not have
to know how to write equations. The math algorithm
is selected by name, chosen by the user for the
function to be performed.

to four inputs and generates an output based on the
configured action. This block normally receives its
inputs from AI Blocks. The block performs maximum,
minimum, average and ‘first good’ signal selection.
Inputs IN1 to IN4 can be indicated on the display.
The selection is performed in the Display Block
(DISPLAY_MAIN_LINE_CONTENT).

each with an output that is a non-linear function of
the respective input. The non-linear function is
generated by a single look-up table with 21 arbitrary
x-y pairs.

function of the time or accumulates the counts from a
Pulse Input Block. The block may be used as a
totalizer that counts up until reset or as a batch
totalizer that has a setpoint, where the integrated or
accumulated value is compared to pre-trip and trip
settings, generating a binary signal when the setpoint
is reached.

(working like a comparator) and represents them at
the output.

1 enhanced enhanced

3 45 ms 45 ms

1 40 ms 30 ms standard enhanced

1 60 ms 40 ms standard enhanced

1 120 ms 70 ms standard enhanced

1 50 ms 40 ms standard enhanced

1 35 ms 35 ms standard enhanced

1 30 ms 40 ms standard enhanced

1 35 ms 40 ms standard enhanced

1 35 ms 35 ms standard enhanced

Execution time Functionality

Device
Revision 6

Device
Revision 7

1)

Device
Revision 6

enhanced enhanced

Device
Revision 7

Additional function block information:

Instantiate Function Block YES YES

Number of additional instantiate blocks 94

1) Without trend and alarm reports

Endress+Hauser 17

Power supply

4…20 mA

➅

10.5 V DC

➆

11.5 V DC

4... 20mA

Test

Test

➀

➁

➂

➃

➄

Test

➇

4... 20mA Test

Electrical connection Note!

• When using the measuring device in hazardous areas, installation must comply with the corresponding

national standards and regulations and the Safety Instructions or Installation or Control Drawings. o ä 95,
"Safety Instructions" and "Installation/Control Drawings" sections.

• Devices with integrated overvoltage protection must be grounded. o ä 33.

• Protective circuits against reverse polarity, HF influences and overvoltage peaks are installed.

4 to 20 mA HART

Deltabar S

P01-xMx7xxxx-04-xx-xx-xx-001

Electrical connection 4 to 20 mA HART

1 Housing
2 Jumper for 4 to 20 mA test signal. See o ä 20, "Measuring a 4 to 20 mA test signal" section.
3 Internal ground terminal
4 External ground terminal
5 4 to 20 mA test signal between positive and test terminal
6 Minimum supply voltage = 10.5 V DC, jumper is set as illustrated in the diagram.
7 Minimum supply voltage = 11.5 V DC, jumper is inserted in "Test" position.
8 Devices with integrated overvoltage protection are labeled OVP (overvoltage protection) here (o ä 33).

PROFIBUS PA

The digital communication signal is transmitted to the bus via a 2-wire connection. The bus also provides the
power supply. For further information on the network structure and grounding, and for further bus system
components such as bus cables, see the relevant documentation, e.g. Operating Instructions BA00034S
"PROFIBUS DP/PA: Guidelines for planning and commissioning" and the PNO Guideline.

Cable specifications:

• Use a twisted, shielded two-wire cable, preferably cable type A

Note!
For further information on the cable specifications, see Operating Instructions BA00034S
"PROFIBUS DP/PA: Guidelines for planning and commissioning", the PNO Guideline 2.092
PROFIBUS PA User and Installation Guideline" and IEC 61158-2 (MBP).

18 Endress+Hauser

Deltabar S

Han7D

–

+

+–

–

+

1

5

4

6

7

8

2

3

21

3

4

+

–

nc

FOUNDATION Fieldbus

The digital communication signal is transmitted to the bus via a 2-wire connection. The bus also provides the
power supply. For further information on the network structure and grounding and for further bus system
components such as bus cables, see the relevant documentation, e.g. Operating Instructions BA00013S
"FOUNDATION Fieldbus Overview" and the FOUNDATION Fieldbus Guideline.

Cable specifications:

• Use a twisted, shielded two-wire cable, preferably cable type A

Note!
For further information on the cable specifications, see Operating Instructions BA00013S "FOUNDATION
Fieldbus Overview", FOUNDATION Fieldbus Guideline and IEC 61158-2 (MBP).

Devices with Harting plug Han7D

Left: electrical connection for devices with Harting plug Han7D
Right: view of the plug connector at the device

Material: CuZn, gold-plated plug-in jack and plug

Devices with M12 plug

PIN assignment for M12 connector

PIN Meaning

1 Signal +

2 Not assigned

3 Signal –

4Earth

A0011175

Endress+Hauser offers the following accessories for devices with an M12 plug:
Plug-in jack M 12x1, straight

• Material: body PA; coupling nut CuZn, nickel-plated

• Degree of protection (fully locked): IP67

• Order number: 52006263

Plug-in jack M 12x1, elbowed

• Material: body PBT/PA; coupling nut GD-Zn, nickel-plated

• Degree of protection (fully locked): IP67

• Order number: 71114212

Cable 4x0.34 mm² (20 AWG) with M12 socket, elbowed, screw plug, length 5 m (16 ft)

• Material: body PUR; coupling nut CuSn/Ni; cable PVC

• Degree of protection (fully locked): IP67

• Order number: 52010285

P01-xMD7xxxx-04-xx-xx-xx-000

Endress+Hauser 19

Deltabar S

2

1

4

3

Test

Test

Devices with 7/8" plug

PIN assignment for 7/8" connector

PIN Meaning

1 Signal –

2 Signal +

3Not assigned

4Shield

A0011176

External thread: 7/8 - 16 UNC

• Material: 316L (1.4401)

• Degree of protection: IP68

Cable gland

Approval Type Clamping area

Standard, II1/2G Exia, IS Plastic M20x1.5 5 to 10 mm (0.2 to 0.39 in)

ATEX II1/2D, II1/3D,
II1/2GD Exia, II1GD Exia
II3G Ex nA

Metal M20x1.5 (Ex e) 7 to 10.5 mm (0.28 to 0.41 in)

Terminals

For wire cross-sections of 0.5 to 2.5 mm² (20 to 14 AWG)

Measuring a 4 to 20 mA test signal

A 4 to 20 mA test signal may be measured via the positive and test terminal without interrupting the
measurement. The minimum supply voltage of the device can be reduced by simply changing the position of
the jumper. As a result, operation is also possible with lower voltage sources. Observe the position of the jumper
in accordance with the following table.

Jumper position for test signal Description

– Measuring 4 to 20 mA test signal via the plus and test terminal:

possible. (Thus, the output current can be measured without

interruption via the diode.)
– Delivery status
– Minimum supply voltage: 11.5 V DC

Test

– Measuring 4 to 20 mA test signal via the plus and test terminal:

not possible.
– Minimum supply voltage: 10.5 V DC

20 Endress+Hauser

Deltabar S

Supply voltage Note!

• When using the measuring device in hazardous areas, installation must comply with the corresponding
national standards and regulations and the Safety Instructions or Installation or Control Drawings.

• All explosion protection data are given in separate documentation which is available upon request. The
Ex documentation is supplied as standard with all devices approved for use in explosion hazardous areas.
o ä 95, "Safety Instructions" and "Installation/Control Drawings" sections.

4 to 20 mA HART

• Version for non-hazardous areas, jumper for 4 to 20 mA test signal in "Test" position
(delivery status): 11.5 to 45 V DC

• Version for non-hazardous areas, jumper for 4 to 20 mA test signal in "Non-test" position:

10.5 to 45 V DC

PROFIBUS PA

• Version for non-hazardous areas: 9 to 32 VDC

FOUNDATION Fieldbus

• Version for non-hazardous areas: 9 to 32 V DC

Current consumption • PROFIBUS PA: 13 mA ± 1 mA, switch-on current corresponds to IEC 61158-2, Clause 21

• FOUNDATION Fieldbus: 15,5 mA ± 1 mA, switch-on current corresponds to IEC 61158-2, Clause 21

Cable entry o ä 79 ff, feature 30 "Housing; Cable entry; Protection".

Cable specification • Endress+Hauser recommends using shielded, twisted-pair two-wire cables.

• Terminals for core cross-sections 0.5 to 2.5 mm

2

(20 to 14 AWG)

• Cable outer diameter: 5 to 9 mm (0.2 to 0.35 in) depends on the used cable gland (o ä 20)

Residual ripple Without influence on 4 to 20 mA signal up to r5 % residual ripple within the permitted voltage range

[according to HART hardware specification HCF_SPEC-54 (DIN IEC 60381-1)]

Influence of power supply d0.0006% of URL/1 V

Endress+Hauser 21