Endress+Hauser Deltabar FMD71, Deltabar FMD72 Technical Information

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TI01033P/00/EN/05.15 71281272
Products Solutions Services
Technical Information
Deltabar FMD71, FMD72
Level measurement with electronic differential pressure
Electronic differential pressure transmitter with ceramic and metal sensors
Application
The Deltabar FMD71/FMD72 is used to measure the differential pressure or level, volume or mass of liquids in pressurized or vacuum vessels
Your benefits
The electronic differential pressure system eliminates traditional mechanical issues resulting in greater process availability and reliability
• Safety risks are minimized with the electronic differential pressure system architecture and design
• Lowest total cost of ownership due to reduced installation time, maintenance, downtime and spare requirements, 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 HART­based diagnostic
• High reproducibility and long-term stability
• Overload-resistant and function-monitored
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Table of contents

Deltabar FMD71, FMD72
Document information ....................... 4
Document function ............................ 4
Symbols used ................................ 4
Documentation ............................... 5
Terms and abbreviations ........................ 6
Registered trademarks .......................... 6
Function and system design ................... 7
Measuring principle - electronic differential pressure
measurement ................................ 7
Measuring system ............................. 7
Device features ............................... 8
Product design ............................... 8
System integration ............................ 9
Input .................................... 10
Measured variable ............................ 10
FMD71: measuring range of individual sensors ......... 10
FMD72: measuring range of individual sensors ......... 11
Output .................................. 12
Output signal ............................... 12
Signal range 4 to 20 mA ........................ 12
Signal on alarm 4 to 20 mA ...................... 12
Maximum load .............................. 12
Dead time, time constant ....................... 13
Dynamic behavior, current output .................. 13
Dynamic behavior, HART ....................... 13
Damping .................................. 13
alarm current ............................... 13
Firmware Version ............................ 13
Protocol-specific data .......................... 14
Performance characteristics of metallic process
isolating diaphragm ........................ 21
Reference operating conditions ................... 21
Influence of the installation position depending on sensor . 21
Resolution ................................. 21
Vibration effects ............................. 21
Application limits ............................ 21
Reference accuracy ........................... 22
Thermal change of the zero output and the output span ... 22
Total performance ........................... 23
Long-term stability ........................... 23
Total error ................................. 23
Warm-up period ............................. 23
Installation ............................... 24
Mounting location ............................ 24
Orientation ................................ 24
General installation instructions ................... 24
Thermal insulation - FMD71 high-temperature version ... 24
Installing the sensor modules .................... 25
Mounting sensor modules with PVDF installation
coupling .................................. 25
Installing the transmitter ....................... 25
Sensor and transmitter cable ..................... 26
Environment .............................. 27
Ambient temperature range ..................... 27
Storage temperature range ...................... 27
Climate class ............................... 27
Degree of protection .......................... 27
Vibration resistance ........................... 27
Electromagnetic compatibility .................... 27
Power supply ............................. 15
Terminal assignment .......................... 15
Supply voltage .............................. 15
Cable entries ............................... 16
Cable specification for transmitter connection .......... 16
Residual ripple .............................. 16
Influence of power supply ....................... 16
Overvoltage protection ......................... 16
Performance characteristics of ceramic process
isolating diaphragm ........................ 17
Reference operating conditions ................... 17
Influence of the installation position depending on sensor . 17
Resolution ................................. 17
Vibration effects ............................. 17
Application limits ............................ 17
Reference accuracy ........................... 18
Thermal change of the zero output and the output span ... 18
Total performance ............................ 19
Long-term stability ........................... 19
Total error ................................. 20
Warm-up period ............................. 20
Process .................................. 28
Process temperature range for devices with ceramic
process isolating diaphragm FMD71 ................ 28
Process temperature range for devices with metallic
process isolating diaphragm FMD72 ................ 29
Pressure specifications ......................... 29
Mechanical construction .................... 30
Device height ............................... 30
T14 transmitter housing (optional display on the side) .... 31
In preparation - T17 transmitter housing (optional display
on the side) ................................ 31
Sensor housing .............................. 32
Selecting the electrical connection ................. 32
FMD71 process connections, internal process isolating
diaphragm ................................. 33
FMD71 process connections, internal process isolating
diaphragm ................................. 34
FMD71 process connections, internal process isolating
diaphragm ................................. 35
FMD71 process connections, flush-mounted process
isolating diaphragm ........................... 36
FMD71 process connections, flush-mounted process
isolating diaphragm ........................... 37
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Deltabar FMD71, FMD72
FMD71 process connections, flush-mounted process
isolating diaphragm ........................... 38
FMD71 process connections, flush-mounted process
isolating diaphragm ........................... 39
FMD71 process connections, flush-mounted process
isolating diaphragm ........................... 42
FMD71 process connections, flush-mounted process
isolating diaphragm ........................... 43
FMD71 process connections, flush-mounted process
isolating diaphragm ........................... 44
FMD72 process connections, internal process isolating
diaphragm ................................. 45
FMD72 process connections, internal process isolating
diaphragm ................................. 46
FMD72 process connections, flush-mounted process
isolating diaphragm ........................... 47
FMD72 process connections, flush-mounted process
isolating diaphragm ........................... 48
FMD72 process connections, flush-mounted process
isolating diaphragm ........................... 49
FMD72 process connections, flush-mounted process
isolating diaphragm ........................... 50
FMD72 process connections, flush-mounted process
isolating diaphragm ........................... 51
Wall and pipe mounting with mounting bracket ........ 54
Materials in contact with process .................. 55
Materials not in contact with process ............... 56
Operability ............................... 59
Operating concept ............................ 59
Local operation .............................. 59
Operating languages .......................... 61
Certificates and approvals ................... 62
CE mark ................................... 62
Ex approvals ................................ 62
Suitability for hygienic processes .................. 62
Pressure Equipment Directive (PED) ................ 62
Other standards and guidelines ................... 62
CRN approval ............................... 63
Classification of process sealing between electrical systems and (flammable or combustible) process fluids in
accordance with ANSI/ISA 12.27.01 ................ 63
Calibration unit .............................. 63
Calibration ................................. 63
Inspection certificates .......................... 63
Ordering information ....................... 65
Scope of delivery ............................. 65
Supplementary documentation ............... 66
Field of Activities ............................ 66
Technical Information ......................... 66
Operating Instructions ......................... 66
Brief Operating Instructions ..................... 66
Safety Instructions (XA) ........................ 66
Registered trademarks ...................... 66
HARTâ ................................... 66
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Document information

DANGER
WARNING
CAUTION
NOTICE
Deltabar FMD71, FMD72

Document function

The document contains all the technical data on the device and provides an overview of the accessories and other products that can be ordered for the device.

Symbols used Safety symbols

Symbol Meaning
Electrical symbols
Symbol Meaning Symbol Meaning
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in serious or fatal injury.
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in serious or fatal injury.
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in minor or medium injury.
NOTE!
This symbol contains information on procedures and other facts which do not result in personal injury.
Direct current Alternating current
Direct current and alternating current Ground connection
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
Symbols for certain types of information
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding system.
Equipotential connection
A connection that has to be connected to the plant grounding system: This may be a potential equalization line or a star grounding system depending on national or company codes of practice.
Reference to page
Reference to graphic
Visual inspection
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Deltabar FMD71, FMD72
,…,
Symbols in graphics
Symbol Meaning
1, 2, 3 ... Item numbers
Series of steps
A, B, C, ... Views
A-A, B-B, C-C, ... Sections

Documentation

The document types listed are available: In the Download area of the Endress+Hauser website: www.endress.com → Download
Brief Operating Instructions (KA): getting the 1st measured value quickly
KA01105P:
The Brief Operating Instructions contain all the essential information from incoming acceptance to initial commissioning.
Operating Instructions (BA): your comprehensive reference
BA01044P:
These Operating Instructions contain all the information that is required in various phases of the life cycle of the device: from product identification, incoming acceptance and storage, to mounting, connection, operation and commissioning through to troubleshooting, maintenance and disposal.
Description of Device Parameters (GP): reference for your parameters
GP01013P:
The document provides a detailed explanation of each individual parameter in the operating menu. The description is aimed at those who work with the device over the entire life cycle and perform specific configurations.
Safety Instructions (XA)
Safety Instructions (XA) are supplied with the device depending on the approval. These instructions are an integral part of the Operating Instructions.
Device Directive Documentation Option
FMD71, FMD72 ATEX II 1/2G Ex ia IIC T6 Ga/Gb XA00619P BA
FMD71, FMD72 ATEX II 1/2G Ex d [ia] IIC T6 Ga/Gb XA00620P BC
FMD71, FMD72 ATEX II 3G Ex nA IIC T6 GC XA00621P BD
FMD71, FMD72 IEC Ex ia IIC T6 Ga/Gb XA00622P IA
FMD71, FMD72 IEC Ex d [ia] IIC T6 Ga/Gb XA00623P IB
FMD71, FMD72 CSA General Purpose - CD
FMD71, FMD72 NEPSI Ex ia IIC T4/T6 Ga/Gb XA01352P NA
FMD71, FMD72 NEPSI Ex d [ia] IIC T4/T6 Ga/Gb XA01352P NB
FMD71 FM C/US IS Cl.I Div.1 Gr.A-D, AEx ia, Zone 0,1,2 XA00628P FA
FMD71 FM C/US XP AIS Cl.I Div.1 Gr.A-D, Exd [ia] Zone 0,1,2 XA00629P FB
FMD71 CSA C/US XP Cl.I Div.1 Gr.A-D, Ex d [ia], Zone 0,1,2 XA00631P CB
FMD71 FM C/US NI Cl.I Div.2 Gr.A-D, Zone 2 XA00668P FD
FMD71 CSA C/US NI, Cl.I Div. 2, Gr.A-D Cl.I, Zone 2, IIC XA00670P CC
FMD71 CSA C/US IS Cl.I Div.1 Gr.A-D, Ex ia Zone 0,1,2 XA00630P CA
FMD72 CSA C/US IS Cl.I Div.1 Gr.A-D, Ex ia Zone 0,1,2 XA00626P CA
FMD72 CSA C/US XP Cl.I Div.1 Gr.A-D, Ex d [ia], Zone 0,1,2 XA00627P CB
FMD72 CSA C/US NI, Cl.I Div.2 Gr.A-D, Zone 2 XA00671P CC
1)
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Deltabar FMD71, FMD72
LRV
URLURV
LRL
1 = 2
3
4
5
Device Directive Documentation Option
FMD72 FM C/US IS Cl.I Div.1 Gr.A-D, AEx ia, Zone 0,1,2 XA00624P FA
FMD72 FM C/US XP AIS Cl.I Div.1 Gr.A-D, Exd [ia] Zone 0,1,2 XA00625P FB
FMD72 FM C/US NI Cl.I Div.2 Gr.A-D, Zone 2 XA00669P FD
1) Product Configurator order code for "Approval"
The nameplate provides information on the Safety Instructions (XA) that are relevant for the device.

Terms and abbreviations

Term/abbreviation Explanation
XA Document type "Safety Instructions"
KA Document type "Brief Operating Instructions"
BA Document type "Operating Instructions"
SD Document type "Special Documentation"
PN Nominal pressure
MWP The MWP (maximum working pressure) for the individual sensors depends on the lowest-rated
element, with regard to pressure, of the selected components, i.e. the process connection must be taken into consideration in addition to the measuring cell. Also observe pressure-temperature dependency. For the relevant standards and additional information, see the "Pressure specifications" →  29 section. The MWP can also be found on the nameplate.
OPL The OPL (over pressure limit = sensor overload limit) for the measuring device depends on the
lowest-rated element, with regard to pressure, of the selected components, i.e. the process connection has to be taken into consideration in addition to the measuring cell. Also observe pressure-temperature dependency. For the relevant standards and additional information, see the "Pressure specifications"→  29 section.
LRL Lower range limit
URL Upper range limit
LRV Lower range value
URV Upper range value
1)
TD Turn down
Set span and zero-based span.
½Lower range value (LRV) ½ < ½ Upper range value (URV)½ Example with measuring cell HP = 1 000 mbar (15 psi) and measuring cell LP = 400 mbar (6 psi): LRL = 400 mbar (6 psi):
• Lower range value (LRV) = –300 mbar (–4.35 psi)
• Upper range value (URV) = 0 mbar
• Nominal value (URL) = 1 000 mbar (15 psi)
Turn down: TD = URL + ½LRL½/½ URV - LRV ½ 4.66:1 Set span: URV – LRV = 300 mbar (4.35 psi) This span is based on the zero point.

Registered trademarks

HARTâ
Registered trademark of the HART Communication Foundation, Austin, USA
1 Set span 2 Zero-based span 3 Nominal value upper range limit (URL) 4 Nominal measuring range 5 Sensor measuring range
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A0016451
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Deltabar FMD71, FMD72
1
2
3
4
p
p
1 2 3
4

Function and system design

Measuring principle ­electronic differential pressure measurement
Devices with ceramic process isolating diaphragm (Ceraphire®)
The ceramic sensor is an oil-free sensor, i.e. the process pressure acts directly on the robust ceramic process isolating diaphragm and causes it to deflect. A pressure-dependent change in capacitance is measured at the electrodes of the ceramic substrate and the process isolating diaphragm. The measuring range is determined by the thickness of the ceramic process isolating diaphragm.
Advantages:
• Guaranteed overload resistance up to 40 times the nominal pressure
• The ultrapure 99.9 % ceramic (Ceraphire®, see also "www.endress.com/ceraphire") ensures: – Extremely high chemical durability – Less relaxation – High mechanical durability
• Can be used in absolute vacuums up to 150 °C (302 °F)
• Small measuring ranges
A0020465
1 Air pressure (relative pressure sensors) 2 Ceramic substrate 3 Electrodes 4 Ceramic process isolating diaphragm
Devices with metallic process isolating diaphragm
The process pressure deflects the metal process isolating diaphragm of the sensor and a fill fluid transfers the pressure to a Wheatstone bridge (semiconductor technology). The pressure-dependent change in the bridge output voltage is measured and evaluated.
Advantages:
• Can be used for process pressures up to 40 bar (600 psi)
• Fully welded process isolating diaphragm
• Small, flush-mounted process connections
• Significantly reduced thermal effect e.g. compared to diaphragm seal systems with capillaries
A0016448
1 Silicon measuring element, substrate 2 Wheatstone bridge 3 Channel with fill fluid 4 Metal process isolating diaphragm

Measuring system

The FMD71/FMD72 consists of 2 sensor modules and one transmitter. One sensor module measures the hydrostatic pressure (high pressure) and the other one the head pressure (low pressure). The level (electronic differential pressure) is calculated in the transmitter using these two digital values.
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Deltabar FMD71, FMD72

Device features

FMD71 FMD72
Field of application
Process connections
Measuring ranges (differential pressure)
1)
MWP
Process temperature limits
Ambient temperature range
Reference accuracy of the individual sensors
Supply voltage • Version for non-hazardous areas: 12 (13) to 45 V DC
Output 4 to 20 mA with superimposed HART protocol
Options • NACE-compliant materials
• Level
• Differential pressure
• Thread
• EN and ASME flanges
• Flush-mounted hygienic connections
from –100 to +100 mbar (–1.5 to +1.5 psi) to –1 to +40 bar (–15 to +600 psi)
to 60 bar (900 psi) to 160 bar (2 400 psi)
Thread / flange connections: –25 to +125 °C (–13 to +257 °F)/ 150 °C (302 °F) Hygienic connections: –25 to +130 °C (–13 to +266 °F) , 150 °C (302 °F) for max. 1 hour
–40 to +80 °C (–40 to +176 °F)
• Up to ±0.075 % of the set span
• PLATINUM version: up to ±0.05 % of the set span
• Ex ia: 12 (13) to 30 V DC
• Software pre-configurations
• Thread
• EN and ASME flanges
• Flush-mounted hygienic connections
from –400 to +400 mbar (–6 to +6 psi) to –1 to +40 bar (–15 to +600 psi)
Flush-mounted thread G 1 A, G 1½, G 2, MNPT / flange connections: –40 to +100 °C (–40 to +212 °F)/150 °C (302 °F) Thread with internal process isolating diaphragm: –40 to +125 °C (–40 to +257 °F)/ 150 °C (302 °F) Hygienic connections: –40 to +130 °C (–40 to +266 °F) , 150 °C (302 °F) for max. 1 hour Higher process temperature limits available on request (up to +250 °C (480 °F))

Product design

1) MWP: depends on the lowest-rated element, with regard to pressure, of the selected components
Level measurement (level, volume and mass) with Deltabar:
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Deltabar FMD71, FMD72
LP 1
HP
p1
p2
P = p2
LP
P = p1 + p2
HP
A0016449
LP Sensor module LP (low pressure) HP Sensor module HP (high pressure) p2 Head pressure p1 Hydrostatic pressure 1 Transmitter

System integration

The FMD71/FMD72 is best suited to level measurement in vessels with pressure overlay or in vacuum vessels and tanks, high distillation columns and other vessels with changing ambient temperatures.
The sensor module HP is mounted on the lower measuring connection and the sensor module LP is mounted above the maximum level. The transmitter can be mounted on pipes or walls with the mounting bracket.
The sensor signal is transmitted digitally. In addition, sensor temperatures and the individual process pressures present at the respective sensor modules can be individually evaluated and transmitted.
NOTICE
Incorrect sizing/order of sensor modules
In a closed system, please note that the sensor module is affected by the superimposed head
pressure (p2) in addition to the hydrostatic pressure (p1). This must be taken into account when sizing the sensor module on the high-pressure side (HP).
The device can be given a tag name (max. 8 alphanumeric characters).
Measuring point (TAG), see additional specifications.: Product Configurator order code for "Identification", option "Z1"
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Input

Measured variable Measured process variables

• Pressure HP and Pressure LP
• Sensor temperature HP and sensor temperature LP
• Transmitter temperature
Calculated process variables
• Differential pressure
• Level (level, volume or mass)
Deltabar FMD71, FMD72
FMD71: measuring range of
The maximum span of the differential pressure corresponds to the URL of the HP sensor.
individual sensors
Gauge pressure
Nominal value Range limit MWP OPL Vacuum resistance Option
lower (LRL) upper (URL)
[bar (psi)] [bar (psi)] [bar (psi)] [bar (psi)] [bar
abs
(psi
abs
)]
100 mbar (1.5 psi) –0.1 (–1.5) +0.1 (+1.5) 2.7 (40.5) 4 (60) 0.7 (10.5) 1C
250 mbar (4 psi) –0.25 (–4) +0.25 (+4) 3.3 (49.5) 5 (75) 0.5 (7.5) 1E
400 mbar (6 psi) –0.4 (–6) +0.4 (+6) 5.3 (79.5) 8 (120) 0 1F
1 bar (15 psi) –1 (–15) +1 (+15) 6.7 (100.5) 10 (150) 0 1H
2 bar (30 psi) –1 (–15) +2 (+30) 12 (180) 18 (270) 0 1K
4 bar (60 psi) –1 (–15) +4 (+60) 16.7 (250.5) 25 (375) 0 1M
10 bar (150 psi) –1 (–15) +10 (+150) 26.7 (400.5) 40 (600) 0 1P
40 bar (600 psi) –1 (–15) +40 (+600) 40 (600) 60 (900) 0 1S
1) Product Configurator order code for "Sensor range"
Absolute pressure
1)
Nominal value Range limit MWP OPL Vacuum resistance Option
lower (LRL) upper (URL)
[bar
(psi
abs
)] [bar
abs
abs
(psi
)] [bar
abs
abs
(psi
)] [bar
abs
abs
(psi
)] [bar
abs
abs
(psi
abs
)]
100 mbar (1.5 psi) 0 +0.1 (+1.5) 2.7 (40.5) 4 (60) 0 2C
250 mbar (4 psi) 0 +0.25 (+4) 3.3 (49.5) 5 (75) 0 2E
400 mbar (6 psi) 0 +0.4 (+6) 5.3 (79.5) 8 (120) 0 2F
1 bar (15 psi) 0 +1 (+15) 6.7 (100.5) 10 (150) 0 2H
2 bar (30 psi) 0 +2 (+30) 12 (180) 18 (270) 0 2K
4 bar (60 psi) 0 +4 (+60) 16.7 (250.5) 25 (375) 0 2M
10 bar (150 psi) 0 +10 (+150) 26.7 (400.5) 40 (600) 0 2P
40 bar (600 psi) 0 +40 (+600) 40 (600) 60 (900) 0 2S
1) Product Configurator order code for "Sensor range"
1)
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Deltabar FMD71, FMD72
FMD72: measuring range of
The maximum span of the differential pressure corresponds to the URL of the HP sensor.
individual sensors
Gauge pressure
abs
1)
Option
)]
Nominal value Range limit MWP OPL Vacuum resistance
lower (LRL) upper (URL) Silicone oil
[bar (psi)] [bar (psi)] [bar (psi)] [bar (psi)] [bar
abs
(psi
400 mbar (6 psi) –0.4 (–6) +0.4 (+6) 4 (60) 6 (90) 0.01 (0.15) 1F
1 bar (15 psi) –1 (–15) +1 (+15) 6.7 (100) 10 (150) 0.01 (0.15) 1H
2 bar (30 psi) –1 (–15) +2 (+30) 13.3 (200) 20 (300) 0.01 (0.15) 1K
4 bar (60 psi) –1 (–15) +4 (+60) 18.7 (280.5) 28 (420) 0.01 (0.15) 1M
10 bar (150 psi) –1 (–15) +10 (+150) 26.7 (400.5) 40 (600) 0.01 (0.15) 1P
40 bar (600 psi) –1 (–15) +40 (+600) 100 (1500) 160 (2400) 0.01 (0.15) 1S
1) The vacuum resistance applies for the measuring cell under reference operating conditions. (see "Reference operating conditions" section)
2) Product Configurator order code for "Sensor range"
Absolute pressure
abs
1)
Option
)]
Nominal value Range limit MWP OPL Vacuum resistance
lower (LRL) upper (URL) Silicone oil
[bar
(psi
abs
)] [bar
abs
abs
(psi
)] [bar
abs
abs
(psi
)] [bar
abs
abs
(psi
)] [bar
abs
abs
(psi
1 bar (15 psi) 0 +1 (+15) 6.7 (100) 10 (150) 0.01 (0.15) 2H
2 bar (30 psi) 0 +2 (+30) 13.3 (200) 20 (300) 0.01 (0.15) 2K
4 bar (60 psi) 0 +4 (+60) 18.7 (280.5) 28 (420) 0.01 (0.15) 2M
10 bar (150 psi) 0 +10 (+150) 26.7 (400.5) 40 (600) 0.01 (0.15) 2P
40 bar (600 psi) –1 (–15) +40 (+600) 100 (1500) 160 (2400) 0.01 (0.15) 2S
2)
2)
1) The vacuum resistance applies for the measuring cell under reference operating conditions. (see "Reference operating conditions" section)
2) Product Configurator order code for "Sensor range"
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Output

on on
off off
damp.
damp.
Display Display
Sensor Sensor
HART HART
R R
FIELD COMMUNICATION PROTOCOL FIELD COMMUNICATION PROTOCOL
SW /min
SW /min
E
+
E
+
U – 12 V
U – 13 V
R
L
max
23 mA
23 mA
£
30
20
12
U
[V]
40 45
1217
1435
783
348
[ ]W
[ ]W
R
L
max
R
L
max
30
20
13
40 45
1174
1391
739
304
Test
Test
£
3
A B
1
3
2
1
2
R
L
max
U
[V]
Deltabar FMD71, FMD72

Output signal

Operation Internal + LCD External
Order code option
2)
4 to 20 mA with superimposed digital communication protocol HART 6.0, 2-wire
1)
+ LCD Internal
4 5 8
1) In the case of the T17 transmitter housing, the operating keys are always arranged internally on the electronic insert.
2) Product Configurator order code for "Display, operation:"

Signal range 4 to 20 mA

Signal on alarm 4 to 20 mA

3.8 mA to 20.5 mA
As per NAMUR NE43
• High alarm (factory setting: 22 mA): can be set from 21 to 23 mA
• Hold measured value: last measured value is held
• Min. alarm: 3.6 mA

Maximum load

In order to guarantee sufficient terminal voltage in two-wire devices, a maximum load resistance R (including line resistance) must not be exceeded depending on the supply voltage U0 of the supply unit. In the following load diagrams, observe the position of the jumper and the explosion protection:
A0021280
A Jumper for 4 to 20 mA test signal set to "Non-test" position B Jumper for 4 to 20 mA test signal set to "Test" position 1 Power supply for II 1/2 G Ex ia, FM IS, CSA IS 2 Power supply for devices for the non-hazardous area, 2 G Ex d, 3 G Ex nA, FM XP, FM NI, CSA XP, CSA dust
ignition-proof
3 R U Supply voltage
maximum load resistance
Lmax
When operating via a handheld terminal or via a PC with an operating program, a minimum communication resistance of 250 Ω must be taken into account.
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A0017533
Page 13
Deltabar FMD71, FMD72
I
63 %
100 %
t
t1t
2
90 %
t
3

Dead time, time constant

Dynamic behavior, current output

Dynamic behavior, HART

Presentation of the dead time and the time constant:
A0019786
Dead time (t1) [ms] Time constant (T63), t
max. 120 120 280
Dead time (t1) [ms] Dead time (t1) [ms] +
Time constant T63 (= t2) [ms]
min. 280 400 560
max. 1100 1220 1380
2
Time constant (T90), t
Dead time (t1) [ms] + Time constant T90 (= t3) [ms]
3
Reading cycle
• Acyclic: max. 3/s, typically 1/s (depending on command # and number of preambles)
• Cyclic (burst): max. 3/s, typically 2/s
The Deltabar FMD71/FMD72 offers BURST MODE functionality for cyclical value transmission via the HART communication protocol.

Damping

alarm current

Firmware Version

Cycle time (update time)
Cyclic (burst): min. 300 ms
Response time
• Acyclic: min. 330 ms, typically 590 ms (depending on command # and number of preambles)
• Cyclic (burst): min. 160 ms, typically 350 ms (depending on command # and number of preambles)
A damping affects all outputs (output signal, display):
• Via onsite display, handheld terminal or PC with operating program, continuous from 0 to 999 s
• Via DIP switch on the electronic insert, switch position "on" = set value and "off"
• Factory setting: 2 s
Damping can be switched on or off using a switch on the electronic insert. If the switch is on, the time constant can be set via a parameter in the menu and if the switch is off, the output signal is not damped (time constant = 0.0).
Configured min. alarm current: Product configurator order code for "Service", option "IA"
Description Option
01.00.zz, HART, DevRev01 78
1) Product Configurator order code for "Firmware version"
1)
Endress+Hauser 13
Page 14
Deltabar FMD71, FMD72

Protocol-specific data

Manufacturer ID 17 (0x11)
Device type code 39 (0x27)
HART specification 6.0
Device description files (DTM, DD) Information and files under:
www.endress.com
www.hartcomm.org
HART device variables Measured values for PV (primary variable)
• Differential pressure
• Level linear (before lin.)
• Level after linearization table
Measured values for SV, TV, QV (second, third and fourth variable)
• Measured differential pressure
• Corrected pressure
• Measured pressure HP
• Sensor pressure HP
• Sensor temperature HP
• Measured pressure LP
• Sensor pressure LP
• Sensor temperature LP
• Level before linearization
• Tank content
• Electronics temperature
Supported functions • Burst mode
• Additional transmitter status
14 Endress+Hauser
Page 15
Deltabar FMD71, FMD72
4... 20mA
Test
Test
Test
4... 20mA Test
1
8
6
7
2
3
4
5

Terminal assignment

Power supply

WARNING
L
Electrical safety is compromised by an incorrect connection!
In accordance with IEC/EN61010 a separate circuit breaker must be provided for the device .
When using the measuring device in a hazardous area, installation must also comply with the
relevant national standards and regulations as well as 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. Devices with integrated overvoltage protection must be grounded.
Protective circuits against reverse polarity, HF influences and overvoltage peaks are integrated.
A0019989
1 Housing 2 Supply voltage 3 4 to 20 mA 4 Devices with integrated overvoltage protection are labeled "OVP" (overvoltage protection) here. 5 External ground terminal 6 4 to 20 mA test signal between positive and test terminal 7 Internal ground terminal, minimum supply voltage = 12 V DC, jumper is set as illustrated in the diagram. 8 Jumper for 4 to 20 mA test signal,

Supply voltage

Electronic version Jumper for 4 to 20 mA test signal in
"Test" position (delivery status)
4 to 20 mA HART, version for non-hazardous areas
13 to 45 V DC 12 to 45 V DC
Jumper for 4 to 20 mA test signal in "Non-test" position
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 a lower supply voltage. To keep the measured error below 0.1 %, the current measuring device should exhibit an internal resistance of <0.7Ω. Observe the position of the jumper in accordance with the following table.
Endress+Hauser 15
Page 16
Deltabar FMD71, FMD72
Test
Test

Cable entries

Cable specification for transmitter connection

Jumper position for test signal
Explosion protection Cable gland Permitted cable diameter Permitted wire cross-sections
• Standard
• Ex ia
• Ex ic
• Ex tD
• Ex nA
• FM approval
• CSA approval
Description
• Measurement of 4 to 20 mA test signal via the positive and test terminal: possible. (Thus, the output current can be measured without interruption via the diode.)
• Delivery status
• Minimum supply voltage: 13 V DC
A0019992
• Measurement of 4 to 20 mA test signal via positive and test terminal: not possible.
• Minimum supply voltage: 12 V DC
A0019993
Plastic M20x1.5 5 to 10 mm (0.2 to 0.39 in) 0.5 to 2.5 mm2 (20 to 14 AWG)
Metal M20 x 1.5 7 to 10.5 mm (0.28 to 0.41 in)
• Endress+Hauser recommends using twisted, shielded two-wire cables.
• Terminals for core cross-sections 0.5 to 2.5 mm2 (20 to 14 AWG)
• The cable outer diameter depends on the cable entry used.

Residual ripple

Without influence on 4 to 20 mA signal up to ±5 % residual ripple within the permitted voltage range [according to HART hardware specification HCF_SPEC-54 (DIN IEC 60381-1)]

Influence of power supply

≤0.0006 % of URL/1 V

Overvoltage protection Standard version

The standard version of the pressure instruments does not contain any special elements to protect against overvoltage ("wire to ground"). Nevertheless the requirements of the applicable EMC standard EN 61000-4-5 (testing voltage 1kV EMC wire/ground) are met.
Optional overvoltage protection
Devices showing version "NA" in feature 610 "Accessory Mounted" in the order code are equipped with overvoltage protection.
• Overvoltage protection: – Nominal functioning DC voltage: 600 V – Nominal discharge current: 10 kA
• Surge current check î = 20 kA satisfied as per DIN EN 60079-14: 8/20 μs
• Arrester AC current check I = 10 A satisfied
NOTICE
Device could be destroyed!
Devices with integrated overvoltage protection must be grounded.
16 Endress+Hauser
Page 17
Deltabar FMD71, FMD72
90°
90°
C
A
B

Performance characteristics of ceramic process isolating diaphragm

Reference operating conditions

Influence of the installation position depending on sensor

• As per IEC 60770
• Ambient temperature TU = constant, in the range of +21 to +33 °C (+70 to +91 °F)
Humidityj= constant, in the range of 5 to 80 % rH
• Ambient pressure pA = constant, in the range of860 to 1 060 mbar (12.47 to 15.37 psi)
• Position of the measuring cell = constant, in the range of horizontal ±1° (see also "Influence of the installation position" section →  17)
• Input of Lo Trim Sensor and Hi Trim Sensor for lower range value and upper range value
• Zero based span
• Material of process isolating diaphragm: Al2O3 (aluminum-oxide ceramic, Ceraphire®)
• Supply voltage: 24 V DC ±3 V DC
• Load with HART: 250 Ω
Process isolating diaphragm axis is horizontal (A) Process isolating diaphragm pointing
upwards (B)
Calibration position, no measurement error < +0.2 mbar (+0.003 psi) < –0.2 mbar (–0.003 psi)
This effect can be corrected using the function to adjust the position (position adjustment) for the differential pressure. Additional position adjustments for individual pressure signals are not available.
A position-dependent zero shift can be corrected on the device .

Resolution

Vibration effects

Application limits

• Current output: 1 μA
• Display: can be set (factory setting: presentation of the maximum accuracy of the transmitter)
Test standard Vibration effects
IEC 61298-3 ≤ Reference accuracy up to 10 to 60 Hz: ±0.35 mm (±0.01 in); 60 to 500 Hz: 2 g
A high ratio between the level and head pressure or between the differential pressure and static pressure can result in large measured errors. A maximum ratio of 1:10 is recommended. For calculation purposes, please use the free "Applicator" calculation tool, which is available online at "www.endress.com/applicator" or on CD-ROM.
Process isolating diaphragm pointing downwards (C)
A0016465
Endress+Hauser 17
Page 18
Deltabar FMD71, FMD72
A
Diff
HP HP
2
(A URL )
+=
.
LP LP
2
(A URL )
.
100 100
A [%]
P
100
.
Diff
Diff
=
A
Diff
T
Diff
HP HP
2
(T URL )
+=
.
LP LP
2
(T URL )
.
100 100
T [%]
P
100
.
Diff
Diff
=
T
Diff

Reference accuracy

The reference accuracy contains the non-linearity [DIN EN 61298-2 3.11] including the pressure hysteresis [DIN EN 61298-23.13] and non-repeatability [DIN EN 61298-2 3.11] in accordance with the limit point method as per [DIN EN 60770].
Measuring cell Sensor Reference accuracy (A)
[%URL for every sensor]
Standard Platinum
100 mbar (1.5 psi) Gauge pressure A =
250 mbar (3.75 psi) Gauge pressure A =
400 mbar (6 psi) Gauge pressure A =
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
1) For hygienic process connections
Gauge pressure/ Absolute pressure A =
A =
A =
A =
A =
±0.075 ±0.15
±0.075 ±0.15
±0.075 ±0.15
±0.075 ±0.15
- Calculation (mbar, bar or psi):
1)
-
1)
-
1)
A = ±0.05
1)
Ordering information
Description Option
Platinum D
Standard G
±0.075
Calculated reference accuracy (A of the differential pressure
Percentage calculation of URL dP:
1)
1)
Diff
)
A0016468
A0016469
1) Product Configurator order code for "Reference accuracy"

Thermal change of the zero output and the output span Standard version

Measuring cell –10 to +60 °C (+14 to +140 °F) –20 to –10 °C (–4 to +14 °F)
+60 to +125 °C (+140 to +257 °F)
% of the set span for every sensor
100 mbar (1.5 psi) 250 mbar (4 psi) 400 mbar (6 psi)
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
T
= ±0.176 T
total
T
= ±0.092 T
total
= ±0.276 Calculation (mbar, bar or psi):
total
= ±0.250
total
Calculated thermal change (T of the differential pressure
Percentage calculation of URL dP:
Diff
)
A0016474
A0016475
18 Endress+Hauser
Page 19
Deltabar FMD71, FMD72
T
Diff
HP HP
2
(T URL )
+=
.
LP LP
2
(T URL )
.
100 100
T [%]
P
100
.
Diff
Diff
=
T
Diff
TP
Diff
HP HP
2
(TP URL )
+=
.
LP LP
2
(TP URL )
.
100 100
TP [%]
P
100
.
Diff
Diff
=
TP
Diff
L
Diff
HP HP
2
(L
100 100
URL )
+=
.
LP LP
2
(L URL )
.
High temperature version and hygienic version
Measuring cell Sensor –10 to +60 °C
(+14 to +140 °F)
% of the set span for every sensor
100 mbar (1.5 psi) 250 mbar (4 psi) 400 mbar (6 psi)
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi)
40 bar (600 psi) Absolute
1) For hygienic process connections

Total performance

Gauge pressure
Gauge pressure
Absolute pressure
pressure
T
= ±0.176
total
T
= ±0.352
Total
T
= ±0.092
total
T
= ±0.184
total
T
= ±0.092
total
T
= ±0.184
total
T
= ±0.092
total
T
= ±0.184
total
The "Total performance" specification comprises the non-linearity including hysteresis, non­reproducibility as well as the thermal change of the zero point. All specifications apply to the temperature range –10 to +60 °C (+14 to +140 °F).
+60 to +150 °C (140 to +302 °F)
1)
1)
1)
1)
T = ±0.75 T = ±1.25
T = ±0.5 T = ±0.75
T = ±0.75 T = ±1.25
T = ±0.5 T = ±0.75
1)
1)
1)
1)
Calculated thermal change (T of the differential pressure
Calculation (mbar, bar or psi):
Percentage calculation of URL dP:
Diff
)
A0016474
A0016475
Measuring cell % of URL for every
sensor - standard version
100 mbar (1.5 psi) 250 mbar (4 psi) 400 mbar (6 psi)
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
TP = ±0.2 TP = ±0.46 TP = ±0.575 Calculation (mbar, bar or psi):
TP = ±0.15 TP = ±0.46 TP = ±0.5
% of URL for every sensor - high­temperature version
% of URL for every sensor - hygienic version
Calculated total performance (TP of the differential pressure
Percentage calculation of URL dP:
The "Applicator Sizing Electronic dp" selection tool, available free of charge on the Endress +Hauser web site (www.endress. com/applicator), enables detailed calculations for your respective applications.

Long-term stability

Measuring ranges Sensor Standard version Calculated long-term stability (L
100 mbar (1.5 psi) 250 mbar (4 psi) 400 mbar (6 psi)
Gauge pressure L = ±0.1
Absolute pressure L = ±0.3
'
1 year 10 years
% of URL for every sensor
L = ±0.2
L = ±0.25
1)
L = ±0.45
L = ±0.55
of the differential pressure
Calculation (mbar, bar or psi):
1)
1)
Diff
)
Diff
A0016470
A0016471
)
A0016463
Percentage calculation of URL dP/year:
Endress+Hauser 19
Page 20
Deltabar FMD71, FMD72
L [%]
P
100
.
Diff
Diff
=
L
Diff
TE
Diff
HP HP
2
(TE URL )
+=
.
LP LP
2
(TE URL )
.
100 100
TE [%]
P
100
.
Diff
Diff
=
TE
Diff
Measuring ranges Sensor Standard version Calculated long-term stability (L
of the differential pressure
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
1) For hygienic process connections
Gauge pressure L = ±0.05
Absolute pressure L = ±0.3

Total error

1 year 10 years
% of URL for every sensor
L = ±0.2
L = ±0.1
1)
The total error comprises the total performance and long-term stability. All specifications apply to the temperature range –10 to +60 °C (+14 to +140 °F).
Measuring cell % of URL for every
sensor - standard version
100 mbar (1.5 psi) 250 mbar (4 psi) 400 mbar (6 psi)
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
TE = ±0.25 TE = ±0.51 TE = ±0.925 Calculation (mbar, bar or psi):
TE = ±0.2 TE = ±0.51 TE = ±0.7
% of URL for every sensor - high­temperature version
% of URL for every sensor - hygienic version
Calculated total error (TE of the differential pressure
Percentage calculation of URL dP:
Diff
Diff
)
A0016464
)
A0016472

Warm-up period

A0016473
4 to 20 mA HART : < 10 s
20 Endress+Hauser
Page 21
Deltabar FMD71, FMD72
90°
90°
C
A
B

Performance characteristics of metallic process isolating diaphragm

Reference operating conditions

Influence of the installation position depending on sensor

• As per IEC 60770
• Ambient temperature TU = constant, in the range of +21 to +33 °C (+70 to +91 °F)
Humidityj= constant, in the range of 5 to 80 % rH
• Ambient pressure pA = constant, in the range of860 to 1 060 mbar (12.47 to 15.37 psi)
• Position of the measuring cell = constant, in the range of horizontal ±1° (see also "Influence of the installation position" section →  21)
• Input of Lo Trim Sensor and Hi Trim Sensor for lower range value and upper range value
• Zero based span
• Process isolating diaphragm material: AISI 316L (1.4435)
• Filling oil: silicone oil
• Supply voltage: 24 V DC ±3 V DC
• Load with HART: 250 Ω
Sensor with 1/2" thread and silicone oil
Sensor with thread > 1/2" and flanges

Resolution

Vibration effects

Application limits

Process isolating diaphragm axis is horizontal (A)
Calibration position, no measurement error
Process isolating diaphragm pointing upwards (B)
< +4 mbar (+0.06 psi) < –4 mbar (–0.06 psi)
< +10 mbar (+0.145 psi) The value is doubled for inert oil.
Process isolating diaphragm pointing downwards (C)
< –10 mbar (–0.145 psi) The value is doubled for inert oil.
This effect can be corrected using the function to adjust the position (position adjustment) for the differential pressure. Additional position adjustments for individual pressure signals are not available.
A position-dependent zero shift can be corrected on the device .
• Current output: 1 μA
• Display: can be set (factory setting: presentation of the maximum accuracy of the transmitter)
Test standard Vibration effects
IEC 61298-3 ≤ Reference accuracy up to 10 to 60 Hz: ±0.35 mm (±0.01 in); 60 to 500 Hz: 2 g
A high ratio between the level and head pressure or between the differential pressure and static pressure can result in large measured errors. A maximum ratio of 1:10 is recommended. For calculation purposes, please use the free "Applicator" calculation tool, which is available online at "www.endress.com/applicator" or on CD-ROM.
A0016465
Endress+Hauser 21
Page 22
Deltabar FMD71, FMD72
A
Diff
HP HP
2
(A URL )
+=
.
LP LP
2
(A URL )
.
100 100
A [%]
P
100
.
Diff
Diff
=
A
Diff
T
Diff
HP HP
2
(T URL )
+=
.
LP LP
2
(T URL )
.
100 100
T [%]
P
100
.
Diff
Diff
=
T
Diff

Reference accuracy

The reference accuracy contains the non-linearity [DIN EN 61298-2 3.11] including the pressure hysteresis [DIN EN 61298-23.13] and non-repeatability [DIN EN 61298-2 3.11] in accordance with the limit point method as per [DIN EN 60770].
Measuring cell Sensor Reference accuracy (A)
[%URL for every sensor]
Standard Platinum
400 mbar (6 psi) Gauge pressure A = ±0.15
±0.3
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
1) For hygienic process connections
Gauge pressure/ Absolute pressure
A = A =
±0.075 ±0.15
- Calculation (mbar, bar or psi):
1)
A =
1)
A =
Ordering information
Description Option
Platinum D
Standard G
±0.05 ±0.075
Calculated reference accuracy (A of the differential pressure
1)
Percentage calculation of URL dP:
)
Diff
A0016468
A0016469
1)
1) Product Configurator order code for "Reference accuracy"

Thermal change of the zero output and the output span

Measuring cell –10 to +60 °C (+14 to +140 °F) –40 to –10 °C (–40 to +14 °F)
% of the set span for every sensor
400 mbar (6 psi) T
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
total
T
span
T
zero point
T
total
T
span
T
zero point
= ±0.215 = ±0.2
= ±0.015
= ±0.101 = ±0.1
= ±0.01
'
'
+60 to +80 °C (+140 to +176 °F)
T
= ±0.43
total
T
= ±0.4
span
T
= ±0.03
zero point
T
= ±0.42
total
T
= ±0.4
span
T
= ±0.02
zero point
Calculated thermal change (T of the differential pressure
Calculation (mbar, bar or psi):
Percentage calculation of URL dP:
Diff
)
A0016474
A0016475
22 Endress+Hauser
Page 23
Deltabar FMD71, FMD72
TP
Diff
HP HP
2
(TP URL )
+=
.
LP LP
2
(TP URL )
.
100 100
TP [%]
P
100
.
Diff
Diff
=
TP
Diff
L
Diff
HP HP
2
(L
100 100
URL )
+=
.
LP LP
2
(L URL )
.
L [%]
P
100
.
Diff
Diff
=
L
Diff
TE
Diff
HP HP
2
(TE URL )
+=
.
LP LP
2
(TE URL )
.
100 100
TE [%]
P
100
.
Diff
Diff
=
TE
Diff

Total performance

The "Total performance" specification comprises the non-linearity including hysteresis, non­reproducibility as well as the thermal change of the zero point. All specifications apply to the temperature range –10 to +60 °C (+14 to +140 °F).
Measuring cell % of URL for every sensor Calculated total performance (TP
400 mbar (6 psi) TP = ±0.25
TP = ±0.34
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
1) For hygienic process connections
TP = ±0.15 TP = ±0.25
1)
1)
Calculation (mbar, bar or psi):
Percentage calculation of URL dP:
The "Applicator Sizing Electronic dp" selection tool, available free of charge on the Endress +Hauser web site (www.endress. com/applicator), enables detailed calculations for your respective applications.

Long-term stability

'
) of the differential pressure
Diff
A0016470
A0016471
1 year 5 years 10 years Calculated long-term stability (L
Measuring ranges % of URL for every sensor
400 mbar (6 psi) L = ±0.035
L = ±0.25
1 bar (15 psi) L = ±0.020
2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi)
40 bar (600 psi) L = ±0.025
1) For hygienic process connections
1)
L = ±0.1
L = ±0.025
1)
L = ±0.1
1)
L = ±0.1

Total error

L = ±0.14 L = ±0.32 Calculation (mbar, bar or psi):
1)
L = ±0.08 L = ±0.180
L = ±0.05 L = ±0.075
L = ±0.075 L = ±0.100
The total error comprises the total performance and long-term stability. All specifications apply to
of the differential pressure
Percentage calculation of URL dP/year:
the temperature range –10 to +60 °C (+14 to +140 °F).
Measuring cell % of URL/year for every sensor Calculated total error (TE
400 mbar (6 psi) TE = ±0.30 Calculation (mbar, bar or psi):
1 bar (15 psi) 2 bar (30 psi) 4 bar (60 psi) 10 bar (150 psi) 40 bar (600 psi)
TE = ±0.20
Percentage calculation of URL dP:
)
Diff
) of the differential pressure
Diff
A0016463
A0016464
A0016472

Warm-up period

Endress+Hauser 23
4 to 20 mA HART : < 10 s
A0016473
Page 24
Deltabar FMD71, FMD72
A
B
1 2

Installation

• No moisture may enter the housing when installing or operating the device, or when establishing the electrical connection.
• When measuring in media containing solids, such as dirty liquids, installing separators and drain valves is useful for capturing and removing sediment.
• If possible, point the cable and connector downwards to prevent moisture (e.g. rain or condensation) from penetrating.

Mounting location

Orientation

General installation instructions

Thermal insulation - FMD71 high-temperature version

The FMD71/FMD72 is best suited to level measurement in vessels with pressure overlay or in vacuum vessels and tanks, high distillation columns and other vessels with changing ambient temperatures.
The sensor module HP is mounted on the lower measuring connection and the sensor module LP is mounted above the maximum level. The transmitter can be mounted on pipes or walls with the mounting bracket.
• Transmitter: Any orientation.
• Sensor modules: The orientation can cause a zero point shift . This position-dependent zero point shift can be corrected directly at the device via the operating key, and also in hazardous areas in the case of devices with external operation (position adjustment).
Mounting the sensor modules and transmitter is very easy
• The housings of the sensor modules can be rotated up to 360°.
• The transmitter is freely rotatable in the mounting bracket.
The sensor modules and transmitter can be easily aligned when mounted.
Your benefits
• Easy installation due to optimum alignment of housing
• Easily accessible device operation
• Optimum readability of the onsite display (optional)
• Easy pipe installation due to optional alignment of the modules.
The FMD71 high-temperature version may only be insulated up to a certain height. The maximum permitted insulation height is indicated on the devices and applies to an insulation material with a heat conductivity ≤ 0.04 W/(m x K) and to the maximum permitted ambient and process temperature. The insulation height is not indicated on hygienic connections.
• Ambient temperature (TA): ≤ 70 °C (158 °F)
• Process temperature (TP): ≤ 150 °C (302 °F)
The data were determined under the most critical application "quiescent air".
A0021075
A Ambient temperature B Process temperature 1 Insulation height 2 Insulation material
24 Endress+Hauser
Page 25
Deltabar FMD71, FMD72

Installing the sensor modules

Mounting sensor modules with PVDF installation coupling

General installation instructions
• Due to the orientation of the sensor modules, there may be a shift in the zero point, i.e. when the vessel is empty or partially full, the measured value does not display zero.
• Always install the sensor module HP below the lowest measuring point.
• Always install the sensor module LP above the highest measuring point.
• Do not mount the sensor modules in the filling curtain or at a point in the tank which could be affected by pressure pulses from an agitator.
• Do not mount the sensor modules in the suction area of a pump.
• The adjustment and functional test can be carried out more easily if you mount the sensor modules downstream of a shutoff device.
WARNING
L
Risk of damage to process connection!
Risk of injury!
Sensor modules with PVDF process connections with threaded connection must be installed with
the mounting bracket provided!
The mounting bracket can be installed on pipes with a diameter of 1¼" to 2" or on walls.

Installing the transmitter

A0017514
• The mounting bracket is included in the delivery.
• Ordering information: Product Configurator order code for "Enclosed accessories", option "PA" or as separate accessory (Part No.: 71102216).
• Dimensions →  54.
The transmitter is installed with the mounting bracket supplied. The mounting bracket can be installed on pipes with a diameter of 1¼" to 2" or on walls.
A0021145
• The mounting bracket is included in the delivery.
• If an additional mounting bracket is required, this can be ordered as follows: Product Configurator order code for "Enclosed accessories", option "PA" or as separate accessory (part number: 71102216).
• Dimensions →  54.
Endress+Hauser 25
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Deltabar FMD71, FMD72

Sensor and transmitter cable

Description Length Option
Sensor cable PE-X 1.82 m (6 ft) BC
4.57 m (15 ft) CC
10.67 m (35 ft) DC
30.48 m (100 ft) FC
45.72 m (150 ft) GC
Transmitter cable PE-X 1.82 m (6 ft) BC
4.57 m (15 ft) CC
10.67 m (35 ft) DC
1) Product Configurator order code for "Cable length"
Technical data for PE-X cable:
• Temperature resistance:–40 to +80 °C (–40 to +176 °F)
• Flame resistance: to DIN 60332-1-2 and DIN EN 50266-2-5
• Halogen-free: to DIN VDE 0472 part 815
• Oil-resistant: to DIN EN 60811-2-1
• Other: UV-resistant to DIN VDE 0276-605
• Bending radius: min. 34 mm (1.34 in), permanently installed
1)
26 Endress+Hauser
Page 27
Deltabar FMD71, FMD72

Environment

Ambient temperature range

Storage temperature range

Climate class

Degree of protection

Vibration resistance

Electromagnetic compatibility

• Without local display: –40 to +80 °C (–40 to +176 °F)
• WIth local display: –20 to +70 °C (–4 to +158 °F) Extended temperature operation range with limitations in optical properties, such as display speed and contrast. –40 to +80 °C (–40 to +176 °F)
For devices for use in hazardous areas, see Safety Instructions .
The device can be used in this temperature range. The values of the specification, such as thermal change, may be exceeded.
–40 to +80 °C (–40 to +176 °F)
Class 4K4H (air temperature: –20 to +55 °C (–4 to +131 °F), relative humidity: 4 to 100 %) fulfilled as per DIN EN 60721-3-4 (condensation possible)
IP66/68 NEMA 4x/6P
IP 68 degree of protection for T17 housing: 1.83 mH2O for 24 h
Housing Test standard Vibration resistance
Aluminum and steel housing IEC 61298-3 Guaranteed for:
10 to 60 Hz: ±0.15 mm (±0.0059 in); 60 to 500 Hz: 2 g in all 3 planes
• Electromagnetic compatibility as per EN 61326 Appendix A and NAMUR Recommendation EMC (NE21). For details, refer to the Declaration of Conformity.
• Maximum deviation: < 0.5 % of span
• All EMC measurements were performed with a turn down (TD) = 2:1.
Endress+Hauser 27
Page 28

Process

Deltabar FMD71, FMD72

Process temperature range for devices with ceramic process isolating diaphragm FMD71

• Thread and flanges: –25 to +125 °C (–13 to +257 °F)
• Hygienic connections:–25 to +130 °C (–13 to +266 °F) , 150 °C (302 °F) for max. 60 minutes
• High-temperature version: –15 to +150 °C (+5 to +302 °F); see ordering information, order code 610, option "NB".
• For saturated steam applications, use a device with a metal process isolating diaphragm, or provide a siphon for temperature isolation when installing.
• Pay attention to the process temperature range of the seal. See also the following table.
Seal Notes Process temperature range Option
Threaded connection or flange Hygienic process connections
FKM Viton - –25 to +125 °C (–13 to +257 °F)/
150 °C (302 °F)
2)
FKM Viton FDA
3)
, 3A Class I, USP
–5 to +125 °C (+23 to +257 °F) –5 to +150 °C
Class VI
Kalrez, Compound 4079 - +5 to +125 °C (+41 to +257 °F)
- A
(+23 to +302 °F)
- D
+5 to +150 °C (+41 to +302 °F)
NBR FDA
3)
–10 to +100 °C (+14 to +212 °F) - F
NBR, low temperature - –40 to +100 °C (–40 to +212 °F) - H
4)
HNBR
EPDM 70 FDA
EPDM 291
4)
3)
FDA
, 3A Class II,
KTW, AFNOR, BAM
3)
3)
FDA
, 3A Class II, USP
Class VI, DVGW, KTW,
–25 to +125 °C (–13 to +257 °F)/ 150 °C (302 °F)
2)
–20 to +125 °C (–4 to +257 °F) G
–40 to +125 °C (–40 to +257 °F) - J
–15 to +125 °C (+5 to +257 °F)/ 150 °C (302 °F)
2)
–15 to +150 °C
(+5 to +302 °F) W270, WRAS, ACS, NSF61
FFKM Kalrez 6375 - +5 to +125 °C (+41 to +257 °F) - L
FFKM Kalrez 7075 - +5 to +125 °C (+41 to +257 °F) - M
FFKM Kalrez 6221 FDA
3)
, USP Class VI –5 to +125 °C (+23 to +257 °F) –5 to +150 °C
(+23 to +302 °F)
Fluoroprene XP40 FDA
VMQ silicone FDA
3)
, USP Class VI, 3A
Class I
3)
+5 to +125 °C (+41 to +257 °F)/ 150 °C (302 °F)
2)
+5 to +150 °C
(+41 to +302 °F)
–35 to +85 °C (–31 to +185 °F) –20 to +85 °C (–4 to +185 °F) S
The process temperature ranges indicated here refer to the permanent operation of the FMD71. For devices with hygienic process connections, a higher temperature (max. 150 °C (302 °F)) may be applied for a short period (max. 60 min.) for cleaning purposes. 60 min.) eine höhere Temperatur (max. 150 °C (302 °F) angewendet werden.
1)
B
K
N
P
1) Product Configurator order code for "Seal"
2) 150 °C (302 °F) for high temperature version
3) Food-safe FDA 21 CFR 177.2600
4) These seals are used for devices with 3A-approved process connections.
Applications with changes in temperature
Frequent extreme changes in temperatures can temporarily cause measuring errors. Temperature compensation takes place after a few minutes. Internal temperature compensation is faster the smaller the change in temperature and the longer the time interval.
28 Endress+Hauser
Page 29
Deltabar FMD71, FMD72

Process temperature range for devices with metallic process isolating diaphragm FMD72

Pressure specifications

Device Limits
Process connections with internal process isolating diaphragm –40 to +125 °C (–40 to +257 °F)
Process connections with flush-mounted process isolating diaphragm (flanges, G 1 A, G 1½, G 2, MNPT)
Hygienic process connections with flush-mounted process isolating diaphragm
WARNING
L
The maximum pressure for the measuring device depends on the lowest-rated element with regard to pressure.
For pressure specifications, see the "Measuring range" section and the "Mechanical construction"
section. The MWP (maximum working pressure) is specified on the nameplate of the individual sensor
module. Betriebsdruck) angegeben. This value refers to a reference temperature of +20 °C (+68 °F), or +38 °C (+100 °F)for ASME flanges, and can be present at the device for an unlimited period. Observe pressure-temperature dependency. Please refer to the following standards for the pressure values permitted at higher temperatures:
EN 1092-1: 2001 Tab. 18 (With regard to their stability-temperature property, the materials
1.4435 and 1.4404 are grouped together under 13E0 in EN 1092-1 Tab. 18. The chemical composition of the two materials can be identical.) // ASME B 16.5a – 1998 Tab. 2-2.2 F316 // ASME B 16.5a – 1998 Tab. 2.3.8 N10276 // JIS B 2220 The test pressure corresponds to the overload limit of the individual sensors (overpressure limit
OPL = 1.5 x MWP (formula does not apply to the FMD72 with a 40 bar (600 psi) measuring cell)) and may be applied for a limited period only to ensure that no lasting damage occurs. The Pressure Equipment Directive (EC Directive 97/23/EC) uses the abbreviation "PS". The
abbreviation "PS" corresponds to the MWP (maximum working pressure ) of the measuring device.. In the case of sensor range and process connections where the over pressure limit (OPL) of the
process connection is smaller than the nominal value of the sensor, the device is set at the factory, at the very maximum, to the OPL value of the process connection. If you want to use the entire sensor range, select a process connection with a higher OPL value (1.5 x PN; MWP = PN).
–40 to +100 °C (–40 to +212 °F)
–40 to +130 °C (–40 to +266 °F) For max. 60 minutes: +150 °C (+302 °F)
Endress+Hauser 29
Page 30

Mechanical construction

A
B
C
D
Deltabar FMD71, FMD72

Device height

The device height is calculated from
• the height of the housing and
• the height of the individual process connection. The individual heights of the components are listed in the following sections. To calculate the device
height simply add up the individual heights of the components. Where applicable also take into consideration the installation distance (space that is used to install the device). You can use the following table for this purpose:
Section Page Height Example
Transmitter height →  31 ff. (A)
Sensor height →  32 (B)
Process connections →  34 (C)
Installation distance - (D)
A0021292
Device height
30 Endress+Hauser
Page 31
Deltabar FMD71, FMD72
152 (5.98)
111 (4.37)
111 (4.37)
220 (8.66)
94 (3.7)
132 (5.2)
115 (4.53)
238 (9.37)

T14 transmitter housing (optional display on the side)

A0016478
Engineering unit mm (in)

In preparation - T17 transmitter housing (optional display on the side)

Material Degree of protection Cable entry Weight kg (lbs) Option
With display Without display
Aluminum IP66/68 NEMA 4x/6P • M20
• G ½"
• NPT ½"
Stainless steel IP66/68 NEMA 4x/6P • M20
• G ½"
• NPT ½"
1) Product Configurator order code for "Transmitter housing"
1.7 (3.75) 1.6 (3.53) A
2.6 (5.73) 2.5 (5.51) B
1)
A0021293
Engineering unit mm (in)
1)
Material Degree of protection Cable entry Weight kg (lbs) Option
With display Without display
316L IP66/68 NEMA 6P • M20
• G ½"
• NPT ½"
1) Product Configurator order code for "Transmitter housing"
2.6 (5.73) 2.5 (5.51) C
Endress+Hauser 31
Page 32

Sensor housing

64.5 (2.54)
145 (5.71)
115 (4.53)
1
2
Deltabar FMD71, FMD72
A0016480
1 With M20 cable entry 2 With NPT ½" thread
Engineering unit mm (in)

Selecting the electrical connection

Material Degree of protection Cable entry Weight Option
kg (lbs)
Aluminum IP66/68 NEMA 4x/6P • M20 cable entry
• NPT ½"
Stainless steel IP66/68 NEMA 4x/6P • M20 cable entry
• NPT ½"
1) Product Configurator order code for "Sensor module housing"
0.6 (1.32) A
1.35 (2.98) B
1)
There is a dependency between the cable entries of the transmitter housing and those of the sensor module housing.
Different cable entries are available in the sensor module housing depending on the cable entry selected for the transmitter housing (see the following table):
Cable entry Transmitter housing Cable entry Sensor module housing Option
M20 cable entry M20 cable entry A
Thread G ½" M20 cable entry C
Thread NPT ½" Thread NPT ½" D
1) Product Configurator order code for "Electrical connection"
1)
32 Endress+Hauser
Page 33
Deltabar FMD71, FMD72
ø6 (0.24)
ø3 (0.12)
ø8 (0.31)
M20x1.5
3 (0.12)
H
17 (0.67)
20 (0.79)

FMD71 process connections, internal process isolating diaphragm

Thread DIN 13
Engineering unit mm (in)
Description Material Weight Option
kg (lbs)
DIN 13 M20 x 1.5, EN 837 3 mm (0.12 in)
1) Product Configurator order code for "Process connection"
Description Height H
Standard height 29 mm (1.14 in)
High-temperature version 107 mm (4.21 in)
AISI 316L 0.63 (1.39) G1J
Alloy C276 (2.4819) G2C
A0020945
1)
Endress+Hauser 33
Page 34
Deltabar FMD71, FMD72
ø6 (0.24)
ø3 (0.12)
ø8 (0.31)
G ½"
3 (0.12)
H
17 (0.67)
20 (0.79)
ø17.5 (0.24)
G ¼"
G ½"
20 (0.79)
H
17 (0.67)
13 (0.51)
ø17.5 (0.24)
ø11.4 (0.45)
G ½"
H
20 (0.79)
17 (0.67)

FMD71 process connections, internal process isolating diaphragm

Thread ISO 228 G
A
C
Engineering unit mm (in)
A0020935
A0020937
B
A0020936
Item Description Material Weight Option
kg (lbs)
A Thread ISO 228 G ½" A EN 837 AISI 316L (CRN) 0.63 (1.39) GCJ
Alloy C276 (2.4819) (CRN) GCC
Monel (2.4360) GCD
PVDF
• Mount only with mounting bracket
• MWP 10 bar (150 psi), OPL max. 15 bar (225 psi)
• Process temperature range: +10 to +60 °C (+14 to +140 °F)
B Thread ISO 228 G ½" A, G ¼" (female) AISI 316L (CRN) GLJ
Alloy C276 (2.4819) (CRN) GLC
Monel (2.4360) GLD
C Thread ISO 228 G ½" A, bore hole11.4 mm (0.45 in) AISI 316L (CRN) GMJ
Alloy C276 (2.4819) (CRN) GMC
Monel (2.4360) GMD
1) Product Configurator order code for "Process connection"
Description Height H
Standard height 29 mm (1.14 in)
High-temperature version 107 mm (4.21 in)
GCF
1)
34 Endress+Hauser
Page 35
Deltabar FMD71, FMD72
NPT ¼"
ø11.4 (0.45)
NPT ½"
H
25 (0.98)
ø11.4 (0.45)
NPT ½"
H
25 (0.98)
ø3 (0.12)
NPT ½"
H
25 (0.98)
ø26.5 (1.04)
H
25 (0.98)
NPT ½"

FMD71 process connections, internal process isolating diaphragm

Thread ANSI
A
C
Engineering unit mm (in)
A0020938
A0020940
B
A0020939
D
A0020943
Item Description Material Weight Option
kg (lbs)
A ANSI ½" MNPT, ¼" FNPT AISI 316L (CRN) 0.63 (1.39) RLJ
Alloy C276 (2.4819) (CRN) RLC
Monel (2.4360) RLD
B ANSI ½" MNPT, bore hole11.4 mm (0.45 in) AISI 316L (CRN) RKJ
Alloy C276 (2.4819) (CRN) RKC
Monel (2.4360) RKD
C ANSI ½" MNPT, bore hole3 mm (0.12 in) PVDF
• Mount only with mounting bracket
• MWP 10 bar (150 psi), OPL max. 15 bar (225 psi)
• Process temperature range: +10 to +60 °C (+14 to +140 °F)
D ANSI ½" FNPT 11.4 mm (0.45 in) AISI 316L (CRN) R1J
Alloy C276 (2.4819) (CRN) R1C
Monel (2.4360) R1D
1) Product Configurator order code for "Process connection"
Description Height H
Standard version 29 mm (1.14 in)
High-temperature version 107 mm (4.21 in)
RJF
1)
Endress+Hauser 35
Page 36
Deltabar FMD71, FMD72
60
NPT 1½"
H
27 (1.06)
ø68 (2.68)
70
H
30 (1.18)
33.5 (1.32)
NPT 2"
FMD71 process connections,
Thread ANSI flush-mounted process isolating diaphragm
Item Description Material Weight Option
A ANSI 1 ½" MNPT AISI 316L (CRN) 0.63 (1.39) U7J
B ANSI 2" MNPT AISI 316L (CRN) U8J
A
Engineering unit mm (in)
Alloy C276 (2.4819) (CRN) U7C
Monel (2.4360) U7D
Alloy C276 (2.4819) (CRN) U8C
Monel (2.4360) U8D
B
A0020948
kg (lbs)
A0020949
1)
1) Product Configurator order code for "Process connection"
Item Description Height H
A Standard version 57 mm (2.24 in)
High-temperature version 64 mm (2.52 in)
B Standard version 54 mm (2.13 in)
High-temperature version 61 mm (2.4 in)
36 Endress+Hauser
Page 37
Deltabar FMD71, FMD72
H
60
11 (0.43)
M44x1.25
22 (0.87)
ø40.5 (1.59)

FMD71 process connections, flush-mounted process isolating diaphragm

Thread DIN 13
Engineering unit mm (in)
Description Material Weight Option
kg (lbs)
DIN 13 M44 x 1.25 AISI 316L 0.63 (1.39) G4J
Alloy C276 (2.4819) G4C
1) Product Configurator order code for "Process connection"
A0020950
1)
Description Height H
Standard version 62 mm (2.44 in)
High-temperature version 69 mm (2.72 in)
Endress+Hauser 37
Page 38
Deltabar FMD71, FMD72
ø55 (2.17)
H
60
25 (0.98)
G 1½"
28 (1.1)
ø68 (2.68)
70
G 2"
H
30 (1.18)
33.5 (1.32)
FMD71 process connections,
Thread ISO 228 G flush-mounted process isolating diaphragm
Item Description Material Weight Option
A Thread ISO 228 G 1 ½" A AISI 316L 0.63 (1.39) GVJ
B Thread ISO 228 G 2" A AISI 316L GWJ
A
Engineering unit mm (in)
B
A0020946
kg (lbs)
Alloy C276 (2.4819) GVC
Monel (2.4360) GVD
Alloy C276 (2.4819) GWC
Monel (2.4360) GWD
A0020947
1)
1) Product Configurator order code for "Process connection"
Item Description Height H
A Standard version 59 mm (2.32 in)
High-temperature version 66 mm (2.6 in)
B Standard version 54 mm (2.13 in)
High-temperature version 61 mm (2.4 in)
38 Endress+Hauser
Page 39
Deltabar FMD71, FMD72
ø42 (1.65)
ø64 (2.52)
ø61 (2.4)
ø57 (2.24)
ø52 (2.05)
13 (0.51)
20 (0.79)
72 (2.83)
ø42 (1.65)
ø52 (2.05)
ø77 (3.03)
ø91 (3.58)
ø84 (3.31)
72 (2.83)
ø42 (1.65)
ø75 (2.95)
ø84 (3.31)
ø52 (2.05)
12 (0.47)
20 (0.79)
72 (2.83)
ø38 (1.5)
ø66 (2.6)
ø52 (2.05)
ø60 (2.36)
12 (0.47)
42 (1.65)
49 (1.93)

FMD71 process connections, flush-mounted process isolating diaphragm

A
Hygienic connections
B
A0026375
A0026376
C
Engineering unit mm (in)
Item Description Material Weight Option
2)
A
Tri-Clamp ISO 2852 DN 40 – DN 51 (2"), DIN 32676DN 50, EHEDG, 3A (CRN) AISI 316L (1.4435) 0.7 (1.54) TDJ
B Tri-Clamp ISO 2852 DN 76.1 (3"), EHEDG, 3A, with FDA seal 0.9 (1.98) TFJ
2)
C
Varivent Type N for pipes 40 – 162, PN 40, EHEDG, 3A (CRN) 1 (2.21) TRJ
D Varivent Type F for pipes DN25-32 PN 40, 316L, EHEDG, 3A, with FDA seal 0.46 (1) TQJ
D
A0026377
kg (lbs)
3)
3)
A0026376
A0026378
1)
1) Product Configurator order code for "Process connection"
2) Roughness of wetted surfaces Ra < 0.76 µm (30 µin) as standard. Surface quality Ra < 0.38 µm (15 µin) electropolished (wetted) available on request.
3) Endress+Hauser supplies these slotted nuts in stainless steel AISI 304 (DIN/EN material number 1.4301) or in AISI 304L (DIN/EN material number 1.4307).
Endress+Hauser 39
Page 40
Deltabar FMD71, FMD72
8 (0.31)
10 (0.39)
ø52 (2.05)
ø61 (2.4)
ø38 (1.5)
ø56 (2.2)
42 (1.65)
49 (1.93)
ø48 (1.89)
ø52 (2.05)
ø61 (2.4)
ø68 (2.68)
11 (0.43)
20 (0.79)
72 (2.83)
ø42 (1.65)
ø38 (1.5)
ø55 (2.17)
45 (1.77)
49 (1.93)
ø
52 (2.05)
ø
60 (2.34)
10 (0.39)
8 (0.31)
ø48 (1.89)
ø42 (1.65)
ø52 (2.05)
ø61 (2.4)
ø67 (2.64)
12 (0.47)
23 (0.91)
72 (2.83)
E
G
F
A0026380
A0026379
H
A0026381
Engineering unit mm (in)
Item Description Material Weight Option
kg (lbs)
E DIN 11851 DN 40 PN 25, EHEDG, 3A (CRN) AISI 316L (1.4435) 0.7 (1.54) MZJ
F DIN 11851 DN 50 PN 25, EHEDG, 3A (CRN) 0.9 (1.98) MRJ
G DIN11864-1 A DN40 PN16 pipe DIN11866-A, slotted nut, 316L, EHEDG, 3A 1 (2.21) NCJ
H DIN11864-1 A DN50 PN40 pipe DIN11866-A, slotted nut, 316L, EHEDG, 3A 1 (2.21) NDJ
1) Product Configurator order code for "Process connection"
2) Endress+Hauser supplies these slotted nuts in stainless steel AISI 304 (DIN/EN material number 1.4301) or in AISI 304L (DIN/EN material number 1.4307).
A0026386
1)
2)
2)
2)
2)
40 Endress+Hauser
Page 41
Deltabar FMD71, FMD72
12 (0.47)
ø42 (1.65)
ø82 (3.23)
ø52 (2.05)
ø60 (2.36)
ø100 (3.94)
ø69 (2.72)
20 (0.79)
72 (2.83)
16 (0.63)
ø42 (1.65)
ø52 (2.05)
ø61 (2.4)
ø84 (3.31)
ø105 (4.13)
ø65 (2.56)
68 (2.68)
ø38 (1.5)
ø50 (1.97)
ø70 (2.76)
ø52 (2.05)
ø90 (3.54)
17 (0.67)
53 (2.09)
39 (1.54)
I
K
A0026387
J
A0026388
A0026389
Engineering unit mm (in)
Item Description Material Weight Option
kg (lbs)
I APV inline DN50 PN40, 316L, 3A, with FDA seal AISI 316L (1.4435) 1.2 (2.65) TMJ
J DRD DN50 (65 mm) PN 25, slotted nut AISI 304 (1.4301) 0.9 (1.98) TIJ
K NEUMO BioControl, D50, PN16, 316L, 3A 0.8 (1.76) S4J
1) Product Configurator order code for "Process connection"
1)
Endress+Hauser 41
Page 42
Deltabar FMD71, FMD72
D
k
b
62
2
g
2
g
26
FMD71 process connections,
EN/DIN flanges, connection dimensions in accordance with EN 1092-1/DIN 2527 flush-mounted process isolating diaphragm
Engineering unit mm
Flange Boltholes Weight Option
Nominal diameter Nominal pressure Shape
DN 25 PN 10-40 B1 (D) AISI 316L 115 18 68 4 14 85 1.4 (3.09) CNJ
DN 32 PN 10-40 B1 (D) AISI 316L 140 18 78 4 18 100 2 (4.41) CPJ
DN 40 PN 10-40 B1 (D) AISI 316L 150 18 88 4 18 110 2.4 (5.29) CQJ
DN 40 PN 10-40 B1 (D) ECTFE
DN 50 PN 10-40 B1 (D) AISI 316L 165 20 102 4 18 125 3.2 (7.06) CXJ
DN 50 PN 10-16 B1 (D) PVDF 165 18 102 4 18 125 2.9 (6.39) CFF
DN 50 PN 25-40 B1 (D) ECTFE
DN 50 PN 63 (64) B2 (D) AISI 316L 180 26 102 4 22 135 4.6 (10.14) PDJ
DN 80 PN 10-16 B1 (D) PVDF 200 21.4 138 8 18 160 1 (2.21) CGF
DN 80 PN 10-40 B1 (D) AISI 316L 200 24 138 8 18 160 5.5 (12.13) CZJ
DN 80 PN 25-40 B1 (D) ECTFE
2)
Material D Thickness Raised face Number g2Hole circle
b g k
mm mm mm mm mm kg (lbs)
3)
150 21 88 4 18 110 2.6 (5.73) CQP
3)
165 20 102 4 18 125 3.2 (7.06) CRP
3)
200 24 138 8 18 160 5.5 (12.13) CSP
A0026336
1)
1) Product Configurator order code for "Process connection"
2) Name as per DIN 2527 provided in brackets
3) ECTFE coating on AISI 316L (1.4404). When using in hazardous areas: avoid electrostatic charge on the plastic surfaces.
42 Endress+Hauser
Page 43
Deltabar FMD71, FMD72
D
k
b
2.44
0.08
g
2
g
1.024
FMD71 process connections,
ASME flanges, connection dimensions as per ASME B 16.5, raised face RF flush-mounted process isolating diaphragm
Engineering unit in
1)
Flange
NPS (nominal diameter of pipe)
Class Material D Thickness Raised face Number g2Hole circle
b g k
in lb./sq.in in in in in in kg (lbs)
1 150 AISI 316/316L
1 300 AISI 316/316L
1 ½ 150 AISI 316/316L
1 ½ 300 AISI 316/316L
2 150 AISI 316/316L
2 150 ECTFE
3)
4.25 1.18 2 4 0.62 3.12 0.9 (1.98) ACJ
3)
4.88 1.18 2 4 0.75 3.5 1.4 (3.09) ANJ
3)
5 0.69 2.88 4 0.62 3.88 2.1 (4.63) AEJ (CRN)
3)
6.12 0.81 2.88 4 0.88 4.5 2.6 (5.73) AQJ (CRN)
3)
6 0.75 3.62 4 0.75 4.75 3.0 (6.62) AFJ (CRN)
4)
6 0.75 3.62 4 0.75 4.75 2.4 (5.29) AFN
2 150 PVDF 6 0.75 3.62 4 0.75 4.75 0.5 (1.10) AFF
2 300 AISI 316/316L
3 150 AISI 316/316L
3 150 ECTFE
3)
6.5 0.88 3.62 8 0.75 5 3.2 (7.06) ARJ (CRN)
3)
7.5 0.94 5 4 0.75 6 5.7 (12.57) AGJ (CRN)
4)
7.5 0.94 5 4 0.75 6 4.9 (10.80) AGN
3 150 PVDF 7.5 0.94 5 4 0.75 6 0.9 (1.98) AGF
3 300 AISI 316/316L
4 150 AISI 316/316L
4 150 ECTFE
4 300 AISI 316/316L
3)
8.25 1.12 5 8 0.88 6.62 6.8 (14.99) ASJ (CRN)
3)
9 0.94 6.19 8 0.75 7.5 7.8 (17.2) AHJ (CRN)
4)
9 0.94 6.19 8 0.75 7.5 7.1 (15.66) AHN
3)
10 1.25 6.19 8 0.88 7.88 11.6 (25.58) ATJ (CRN)
Boltholes Weight Option
A0026337
2)
1) AISI 316L
2) Product Configurator order code for "Process connection"
3) Combination of AISI 316 for required pressure resistance and AISI 316L for required chemical resistance (dual rated)
4) ECTFE coating on AISI 316/316L. When using in hazardous areas: avoid electrostatic charge on the plastic surfaces.
Endress+Hauser 43
Page 44
Deltabar FMD71, FMD72
D
k
b
62
2
g
2
g
26
FMD71 process connections,
JIS flanges, connection dimensions as per JIS B 2220 BL, raised face RF flush-mounted process isolating diaphragm
Engineering unit mm
1) 2)
Flange
Nominal diameter Nominal pressure D Thickness Raised face Number g
b g k
mm mm mm mm mm kg (lbs)
50 A 10 K 155 16 96 4 19 120 2.0 (4.41) KFJ
80 A 10 K 185 18 127 8 19 150 3.3 (7.28) KGJ
100 A 10 K 210 18 151 8 19 175 4.4 (9.7) KHJ
Boltholes Weight Option
Hole circle
2
A0026336
3)
1) AISI 316L (1.4435)
2) The roughness of the surface in contact with the medium including the raised face of the flanges is Ra 0.8 μm (31.5 μin). Lower surface
roughness on request.
3) Product Configurator order code for "Process connection"
44 Endress+Hauser
Page 45
Deltabar FMD71, FMD72
3 (0.12)
G ½ A"
ø3.2 (0.13)
ø6 (0.24)
ø17.5 (0.69)
20 (0.79)
3 (0.12)
38 (1.5)
G ½ A"
G ¼"
ø17.5 (0.69)
13 (0.51)
ø11.4 (0.45)
20 (0.79)
17 (0.67)
38 (1.5)
ø11.4 (0.45)
G ½ A"
ø17.5 (0.69)
20 (0.79)
17 (0.67)
38 (1.5)

FMD72 process connections, internal process isolating diaphragm

Thread ISO 228 G
A
C
A0026391
B
A0026392
A0026393
Engineering unit mm (in)
Item Description Material Weight Option
kg (lbs)
A Thread ISO 228 G ½" A EN 837 AISI 316L (CRN) 0.63 (1.39) GCJ
Alloy C276 (2.4819) (CRN) GCC
B Thread ISO 228 G ½" A, G ¼" (female) EN 837 AISI 316L (CRN) GLJ
Alloy C276 (2.4819) (CRN) GLC
C Thread ISO 228 G ½" A EN 837, bore hole11.4 mm (0.45 in) AISI 316L (CRN) GMJ
Alloy C276 (2.4819) (CRN) GMC
1) Product Configurator order code for "Process connection"
1)
Endress+Hauser 45
Page 46
Deltabar FMD71, FMD72
15 (0.59)
ø11.4 (0.45)
ø21.4 (0.84)
25 (0.98)
NPT ½"
NPT ¼"
38 (1.5)
ø21.4 (0.84)
NPT ½"
ø11.4 (0.45)
25 (0.98)
38 (1.5)
ø38 (1.5)
26 (1.02)
NPT ½"
7 (0.28)
8 (0.31)
20 (0.79)
10 (0.39)

FMD72 process connections, internal process isolating diaphragm

Thread ANSI
A
C
A0026394
B
A0026395
A0026396
Engineering unit mm (in)
Item Description Material Weight Option
kg (lbs)
A ANSI ½" MNPT, ¼" FNPT AISI 316L (CRN) 0.63 (1.39) RLJ
Alloy C276 (2.4819) (CRN) RLC
B ANSI ½" MNPT, bore hole11.4 mm (0.45 in) AISI 316L (CRN) RKJ
Alloy C276 (2.4819) (CRN) RKC
D ANSI ½" FNPT 11.4 mm (0.45 in) AISI 316L (CRN) R1J
Alloy C276 (2.4819) (CRN) R1C
1) Product Configurator order code for "Process connection"
1)
46 Endress+Hauser
Page 47
Deltabar FMD71, FMD72
2 (0.08)
3.5 (0.14)
14 (0.55)
ø17.5 (0.69)
ø18.4 (0.72)
ø26.5 (1.04)
ø23.6 (0.93)
G ½ A"
34 (1.34)
3 (0.12)
1
2 (0.08)
3.5 (0.14)
18 (0.71)
ø30 (1.18)
ø28 (1.1)
ø36 (1.42) ø39 (1.54)
G 1" A
38 (1.5)
3 (0.12)
24 (0.94)
5 (0.2)
2 (0.08)
26 (1.02)
ø26 (1.02)
G 1½" A ø55 (2.17)
ø44 (1.73)
2 (0.08)
30 (1.18)
ø26 (1.02)
G 2" A ø68 (2.68)
ø56.3 (2.22)
25 (0.98)
1 (0.04)

FMD72 process connections, flush-mounted process isolating diaphragm

A
C
Thread ISO 228 G
B
A0021613
A0021614
D
A0026397
Engineering unit mm (in)
Item Description Material Weight Option
kg (lbs)
A Thread ISO 228 G ½" A, DIN 3852 FKM molded seal (item 1) pre-installed AISI 316L 0.4 (0.88) GRJ
B Thread ISO 228 G 1" A AISI 316L 0.7 (1.54) GTJ
C Thread ISO 228 G 1 ½" A AISI 316L 1.1 (2.43) GVJ
D Thread ISO 228 G 2" A AISI 316L 1.5 (3.31) GWJ
1) Product Configurator order code for "Process connection"
A0026399
1)
Endress+Hauser 47
Page 48
Deltabar FMD71, FMD72
24 (0.94)
23 (0.91)
NPT 1"
ø26 (1.02)
28 (1.1)
27 (1.06)
NPT 1 "½
ø26 (1.02)
24 (0.94)
31 (1.22)
NPT 2"
ø26 (1.02)

FMD72 process connections, flush-mounted process isolating diaphragm

Thread ANSI
A
C
A0026400
B
A0026402
A0026403
Engineering unit mm (in)
Item Description Material Weight Option
kg (lbs)
A ANSI 1" MNPT AISI 316L (CRN) 0.7 (1.54) U5J
B ANSI 1 ½" MNPT AISI 316L (CRN) 1 (2.21) U7J
C ANSI 2" MNPT AISI 316L (CRN) 1.3 (2.87) U8J
1) Product Configurator order code for "Process connection"
1)
48 Endress+Hauser
Page 49
Deltabar FMD71, FMD72
D
k
b
g
60
2
d =Mø28
35
g
2
m
FMD72 process connections,
EN/DIN flanges, connection dimensions in accordance with EN 1092-1/DIN 2527 flush-mounted process isolating diaphragm
Engineering unit mm (in)
1) 2)
Flange
Nominal diameter Nominal pressure Shape
4)
D Thickness Raised face Weight Number g
b g k
[mm] [mm] [mm] [kg (lbs)] [mm] [mm]
DN 25 PN 10-40 B1 (D) 115 18 68
DN 32 PN 10-40 B1 (D) 140 18 78
DN 40 PN 10-40 B1 (D) 150 18 88
5)
5)
5)
1.2 (2.65) 4 14 85 CNJ
1.9 (4.19) 4 18 100 CPJ
2.2 (4.85) 4 18 110 CQJ
DN 50 PN 10-40 B1 (D) 165 20 102 3.0 (6.62) 4 18 125 CXJ
DN 80 PN 10-40 B1 (D) 200 24 138 5.3 (11.69) 8 18 160 CZJ
Boltholes Option
Hole circle
2
A0026405
3)
1) The roughness of the surface in contact with the medium including the raised face of the flanges (all standards) is <Ra 0.8 μm (31.5 μin).
Reduced levels of surface roughness are available on request.
2) AISI 316L
3) Product Configurator order code for "Process connection"
4) Name as per DIN 2527 provided in brackets
5) The sealing surface in these process connections is smaller than what is specified in the standard. Due to the smaller sealing surface, a special
seal must be used. For further information, please contact a seal manufacturer or your local Endress+Hauser Sales Center.
Endress+Hauser 49
Page 50
Deltabar FMD71, FMD72
D
k
b
g
2.36
0.08
d =Mø 1.1
g
2
1.42
FMD72 process connections,
ASME flanges, connection dimensions as per ASME B 16.5, raised face RF flush-mounted process isolating diaphragm
A0026406
Engineering unit mm (in)
1) 2)
Flange
NPS (nominal diameter of pipe) Class D Thickness Raised face Weight Number g2Hole circle
b g k
[in] lb./sq.in [in] [in] [in] [kg (lbs)] [in] [in]
1 300 4.88 0.69 0.06
1 ½ 150 5 0.69 2.88
1 ½ 300 6.12 0.81 2.88
4)
4)
4)
1.3 (2.87) 4 0.75 3.5 ANJ
1.5 (3.31) 4 0.62 3.88 AEJ (CRN)
2.6 (5.73) 4 0.88 4.5 AQJ (CRN)
2 150 6 0.75 3.62 2.4 (5.29) 4 0.75 4.75 AFJ (CRN)
2 300 7.5 0.88 3.62 3.2 (7.06) 8 0.75 5 ARJ (CRN)
3 150 7.5 0.94 5 4.9 (10.80) 4 0.75 6 AGJ (CRN)
3 300 8.25 1.12 5 6.7 (14.77) 8 0.88 6.62 ASJ (CRN)
4 150 9 0.94 6.19 7.1 (15.66) 8 0.75 7.5 AHJ (CRN)
4 300 10 1.25 6.19 11.6 (25.88) 8 0.88 7.88 ATJ (CRN)
Boltholes Option
3)
1) The roughness of the surface in contact with the medium is <Ra 0.8 μm (31.5 μin). Reduced surface roughness levels are available on request.
2) Material AISI 316/316L (combination of AISI 316 for required pressure resistance and AISI 316L for required chemical resistance (dual rated))
3) Product Configurator order code for "Process connection"
4) The sealing surface in these process connections is smaller than what is specified in the standard. Due to the smaller sealing surface, a special
seal must be used. For further information, please contact a seal manufacturer or your local Endress+Hauser Sales Center.
50 Endress+Hauser
Page 51
Deltabar FMD71, FMD72
D1
d
H
d
M
D1
d
H
d
M
m
H
d
M
D1 D3
m
d
M
D1 D3
H

FMD72 process connections, flush-mounted process isolating diaphragm

A
Hygienic connections
B
C
Engineering unit mm (in)
Item Description Nominal
D1 D3
pressure
PN d d
A Clamp
40 34 (1.34) - 27.5
DN18-22
B Clamp 1" 40 50.5
(1.99)
Clamp 1½" 40 50.5
(1.99)
Clamp 2" 40 64 (2.52) - 56.5
C DIN11851 B25 40 43.4
(1.71)63(2.48)
DIN11851 B32 40 49.4
(1.94)70(2.76)
D DIN11851 B40 40 55.4
(2.18)78(3.07)
DIN11851 B50 40 67.4
(2.65)92(3.62)
Seal Diaphragm
(1.08)
- 43.5 (1.71)
- 43.5 (1.71)
(2.22)
- 28 (1.10) 21 (0.83) 0.7 (1.54) MXJ
- 28 (1.10) 21 (0.83) 0.8 (1.76) MIJ
- 28 (1.10) 21 (0.83) 0.9 (1.98) MZJ
- 28 (1.10) 22 (0.87) 1.1 (2.43) MRJ
A0021801
D
A0021803
Height Height Material Weight Option
M
17.2 (0.68) max. 40
H m kg (lbs)
(1.57)
- AISI 316L (1.4435)
0.5 (1.10) TBJ
21.65 (0.85) - 0.6 (1.32) TCJ
28 (1.10) - 0.6 (1.32) TJJ
28 (1.10) - 0.7 (1.54) TDJ
A0021802
A0021804
1)
1) The roughness of the surface in contact with the medium is Ra <0.76 µm (30 µin).
Endress+Hauser 51
Page 52
Deltabar FMD71, FMD72
m
H
d
M
D1 D3
m
H
d
M
D1 D3
H
d
M
d D2 D1
H
d
M
D2 D1
E
G
Engineering unit mm (in)
A0021805
A0021800
F
A0021806
H
A0021807
Item DescriptionNominal
D1 D2
External
DiaphragmHeight Height Material Weight Option
pressure
PN D3 d
M
E SMS 1" 25 35.5 (1.4) - 51 (2.01) 21.65
(0.85)
H m kg (lbs)
max. 40 (1.57)
20 (0.79) AISI 316L
(1.4435)
0.7 (1.54) T6J
F SMS 1½" 25 55 (2.17) - 74 (2.91) 28 (1.10) 25 (0.98) 0.8 (1.76) T7J
SMS 2" 25 65 (2.56) - 84 (3.31) 28 (1.10) 26 (1.02) 0.9 (1.98) TXJ
G Varivent B 40 52.7
(2.07)
31 (1.22) - 21.65
(0.85)
- 0.7 (1.54) TPJ
H Varivent F 40 66 (2.6) 53 (2.09) - 28 (1.10) - 0.9 (1.98) TQJ
VariventN40 84 (3.31) 71 (2.8) - 28 (1.10) - 1.1 (2.43) TRJ
1) The roughness of the surface in contact with the medium is Ra <0.76 µm (30 µin).
1)
52 Endress+Hauser
Page 53
Deltabar FMD71, FMD72
H
d
M
D2 k D1
2 (0.08)
R
d
M
D2
k
D1
H
H
d
M
D2 D1
k
105 (4.13)
15,5 (0.6)
H
d
M
D2
k
D1
I
K
Engineering unit mm (in)
A0021808
A0021810
J
A0021809
L
A0021811
Item DescriptionNominal
pressure
D1 D2 Hole
circle-
DiaphragmHeight Material Weight Option
PN k d
I Neumo
D25
16 64 (2.52) 30.4 (1.2) 50 (1.97);
4 x, R 3.5
21.65
(0.85) mm (0.14 in)
J Neumo
D50
16 89.5 (3.52) 49.9 (1.96) 70 (2.76);
4 x ø 9 mm
28 (1.10) 1.2 (2.65) S4J
(0.35 in)
K DRD 25 64.5 (2.54) 52.5 (2.07) 84 (3.31);
28 (1.10) 1.0 (2.21) TIJ 4 x ø 11.5 mm (0.45 in)
L APV Inline 10 99.5 (3.92) 64 (2.52) 82 (3.23);
28 (1.10) 1.2 (2.65) TMJ 6 x ø 8.6 mm (0.34 in) + 2 x M8
1) The roughness of the surface in contact with the medium is Ra <0.76 µm (30 µin).
1)
M
H kg (lbs)
max. 40 (1.57)
AISI 316L (1.4435)
0.8 (1.76) S1J
Endress+Hauser 53
Page 54
Wall and pipe mounting with
52 (2.05)
ø52 (2.05)
ø40 (1.57)
84 (3.31)
131 (5.16)
90 (3.54)
90 (3.54)
140 (5.51)
175 (6.89)
122 (4.8)
ø6,4 (0.25)
122 (4.8)
86 (3.39)
158 (6.22)
ø6 (0.24)
ø42...60 (1.65...2.36)
70 (2.76)
mounting bracket
Deltabar FMD71, FMD72
Engineering unit mm (in)
Weight kg (lbs) Option
Housing Mounting bracket
→  31 0.5 (1.1) PA
1) Product Configurator order code for "Process connection"
Also available for order as a separate accessory: part number 71102216
A0016495
1)
54 Endress+Hauser
Page 55
Deltabar FMD71, FMD72

Materials in contact with process

NOTICE
Device components in contact with the process are listed in the "Mechanical construction"
→  30 and "Ordering information" sections.
TSE Certificate of Suitability
The following applies to all device components in contact with the process:
• They do not contain any materials derived from animals.
• No additives or operating materials derived from animals are used in production or processing.
Process connections
• Endress+Hauser supplies DIN/EN flanges and threaded connection in stainless steel as per AISI 316L (DIN/ EN material number 1.4404 or 1.4435). With regard to their stability-temperature property, the materials 1.4404 and 1.4435 are grouped together under 13E0 in EN 1092-1: 2001 Tab. 18. The chemical composition of the two materials can be identical.
• "Clamp connections" and "Hygienic process connections": AISI 316L (DIN/EN material number
1.4435)
• Some process connections are also available in Alloy C276 (DIN/EN material number 2.4819). For this purpose see the information in the "Mechanical construction" section.
Process isolating diaphragm
Sensor Description Option
FMD71 Al2O3 aluminum oxide ceramic FDA
FMD72 AISI 316L (DIN/EN material number 1.4435) A
FMD72 AlloyC (on request) B
2)
, Ceraphire® (see also www.endress.com/ceraphire) -
1)
1) Product Configurator order code for "Process connection"
2) The US Food & Drug Administration (FDA) has no objections to the use of ceramics made from aluminum
oxide as a surface material in contact with foodstuffs. This declaration is based on supporting documents from the FDA furnished by our ceramic suppliers.
Filling oil
Description Option
Silicone oil 1
Inert oil (on request) 2
Synthetic oil, FDA 3
1) Product Configurator order code for "Process connection"
1)
Endress+Hauser 55
Page 56
Deltabar FMD71, FMD72
14
5
3
3
15
6
8
13
9
10
11
12
4
1
7
2
2

Materials not in contact with process

T14 transmitter housing
A0016496
Item number Component part Material
1 T14 housing, RAL 5012 (blue) Die-cast aluminum with protective powder-coating on
polyester base
T14 housing Precision cast AISI 316L (1.4435)
2 Cover, RAL 7035 (gray) • Die-cast aluminum with protective powder-coating on
polyester base
• Coating on thread: Heat-curing lubricant varnish
Cover • Precision cast AISI 316L (1.4435)
• Coating on thread: Heat-curing lubricant varnish
3 Cover seal EPDM
4 Nameplates AISI 304 (1.4404)
5 Pressure compensation filter, O-ring VMQ or EPDM
6 Pressure compensation filter AISI 316L (1.4404) and PBT-FR
7 External operation (keys and key
cover), RAL 7035 (gray)
8 Cable entry Polyamide (PA)
Seal Silicone (VMQ)
9 Blind plug PBT-GF30 FR, for dust ignition-proof: AISI 316L
Seal Silicone (VMQ)
10 Sight glass Mineral glass
Sight glass seal Silicone (VMQ)
11 Screw A4
12 Sealing ring EPDM
Snap ring PA66-GF25
13 Round strand rope for nameplates AISI 304 (1.4301) / AISI 316 (1.4401)
14 External ground terminal AISI 304 (1.4301)
15 Cover clamp Clamp AISI 316L (1.4435), screw A4
Polycarbonate PC-FR, screw A4
(1.4435)
(polycarbonate on request)
56 Endress+Hauser
Page 57
Deltabar FMD71, FMD72
T17
1
2
3
7
8
9
13
14
3
26
5
15
16
16
17
4
101112
T17 transmitter housing
Item number Component part Material
1 T17 housing AISI 316L (1.4404)
Cover
3 Cover seal EPDM
4 Nameplates Lasered on
5 Pressure compensation filter AISI 316L (1.4404) and PBT-FR
6 Pressure compensation filter, O-ring VMQ or EPDM
7 Sight glass for non-hazardous area, ATEX Ex ia,
8
9 Sight glass seal EPDM
10 Screw A2-70
11 Sealing ring EPDM
12 Snap ring PA6
13 Screw A4-50
14 External ground terminal AISI 304 (1.4301)
15 Cable entry M20 Polyamide PA, for dust ignition-proof:
16 Seal of cable entry and plug Silicone (VMQ)
17 Blind plug PBT-GF30 FR, for dust ignition-proof:
NEPSI Zone 0/1 Ex ia, IECEx Zone 0/1 Ex ia, FM NI, FM IS, CSA IS
Polycarbonate (PC)
Coating on thread: Heat-curing lubricant varnish
CuZn nickel-plated
AISI 316L (1.4435)
A0020021
Endress+Hauser 57
Page 58
Deltabar FMD71, FMD72
1
2 4
5 6
7
3
1
4
2
5
36
4
Sensor modules
A0021295
Item number Component part Material
1 Sensor module housing and cover Aluminum with protective powder-coating on polyester base
AISI 316L (1.4404)
2 Pressure compensation filter PA6 GF10 or 316L (1.4404)
3 Blind plug PBT-GF30 FR, for dust ignition-proof: AISI 316L (1.4435)
Seal Silicone (VMQ)
4 Conduit adapter NPT ½" 316L
5 Snap ring for cover PP
6 Earth connection box 316L
7 Nameplates Plastic film
Connecting parts
Item number Component part Material
1 Mounting bracket Bracket AISI 316L (1.4404)
2 Screw and nuts A4-70
3 Half-shells: AISI 316L (1.4404)
4 M12 connector PP and stainless steel
5 Cable for transmitter connection PE-X halogen-free
6 Cable for sensor connection PE-X halogen-free
A0016497
58 Endress+Hauser
Page 59
Deltabar FMD71, FMD72

Operability

Operating concept Operator-oriented menu structure for user-specific tasks

• Commissioning
• Operation
• Diagnosis
• Expert level
Fast and safe commissioning
Guided menus for applications
Reliable operation
• Local operation possible in up to two languages
• Standardized operation at the device and in the operating tools
• Parameters relating to measured values can be locked/unlocked using the device's write protection switch, using the device software or via remote operation.
Efficient diagnostics increase measurement availability
• Remedial measures are integrated in plain text
• Diverse simulation options

Local operation Functions

Position adjustment (zero point
Setting lower-range value and upper-
range value - reference pressure present
Locking and unlocking parameters
relevant to the measured value
Value acceptance indicated by green LED
Switching damping on and off
Min. Switch on min. alarm
Operating the device using onsite display (optional)
A 4-line liquid crystal display (LCD) is used for display and operation. The onsite display shows measured values, dialog text as well as fault and notice messages in plain text, thereby supporting the user in every stage of operation.
The display can be removed for easy operation.
The device display can be turned in 90° steps.
Depending on the installation position of the device, this makes it easy to operate the device and read the measured value.
Functions:
• 8-digit measured value display incl. sign and decimal point, bar graph for 4 to 20 mA HART as current display.
• Simple and complete menu guidance due to breakdown of parameters into several levels and groups.
• Each parameter is given a 3-digit ID number for easy navigation.
Function External operation
(operating keys, optional)
correction)
at the device
Device reset
(only if display is connected)
(only if display is connected)
(only if display is connected)
¾
Internal
operation
(electronic
insert)
Onsite display
(optional)
Endress+Hauser 59
Page 60
Deltabar FMD71, FMD72
1
3
2
4
5
E
+
• Possibility of configuring the display in accordance with individual wishes and requirements e.g. language, alternating display, display of other measured values, such as sensor temperature, contrast setting
• Comprehensive diagnostic functions (fault and warning message, peak-hold indicators, etc.).
• Quick and safe commissioning
Overview
A0016498
1 Operating keys 2 Bargraph 3 Symbol 4 Header 5 Parameter ID number
Operating keys on the exterior of the device
With the T14 housing (aluminum or stainless steel), the operating keys are located either outside of the housing, under the protection cap or inside on the electronic insert. In addition, devices with an onsite display and a 4 to 20 mA HART electronic insert have operating keys on the onsite display.
A0016499
The operating keys on the outside of the device make it unnecessary to open the housing. This guarantees:
• Complete protection against environmental influences such as moisture and contamination
• Simple operation without any tools.
• No wear.
60 Endress+Hauser
Page 61
Deltabar FMD71, FMD72
on
off
damp.
Display
Sensor
HART
R
FIELD COMMUNICATION PROTOCOL
SW /min
t
on
off
1 2
3
4
5
6
SW/min
7 8
Operating keys and elements located internally on the electronic insert
A0016500
1 DIP switch for locking/unlocking parameters relevant to the measured value 2 DIP switch for switching damping on/off 3 DIP switch for alarm current SW/Alarm min (3.6 mA)
4...5 Not assigned 6 Green LED to indicate value being accepted 7 Operating keys 8 Slot for optional display

Operating languages

You can also choose another language in addition to the standard language "English":
Description Version
English (standard) AA
German AB
French AC
Spanish AD
Italian AE
Portuguese AG
Chinese, simplified characters AK
Japanese AL
1) Product Configurator "Additional operating language" section
1)
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Certificates and approvals

74-06
Deltabar FMD71, FMD72

CE mark

Ex approvals

Suitability for hygienic processes

The device meets the legal requirements of the relevant EC directives. Endress+Hauser confirms that the device has been successfully tested by applying the CE mark.
• ATEX
• FM
• CSA
• IECEx
• NEPSI
All explosion protection data are given in separate documentation which is available upon request. Ex documentation is supplied as standard with all devices approved for use in hazardous areas .
All materials in contact with foodstuffs comply with framework regulation (EC) 1935/2004. The device is available with hygienic process connections (overview: see order code).
CAUTION
L
Contamination in the process!
Risk of contamination if incorrect seals and parts are used!
To avoid the risk of contamination, when installing the device comply with the design principles
of EHEDG, Guideline 37 "Hygienic Design and Application of Sensors" and Guideline 16 "Hygienic Pipe Couplings". Suitable assemblies and seals must be used to ensure hygienic design in accordance with 3-A SSI
and EHEDG specifications. The leak-proof connections can be cleaned with the cleaning methods typical of this industry
(CIP and SIP). Attention must be paid to the pressure and temperature specifications of the sensor and process connections for CIP and SIP processes (clean in place/sterilize in place).

Pressure Equipment Directive (PED)

Other standards and guidelines

The seamless connections can be cleaned of all residue using any of the typical cleaning methods within this industry.
A0025601
The device corresponds to Article 3 (3) of the EC directive 97/23/EC (Pressure Equipment Directive) and has been designed and manufactured in accordance with good engineering practice or complies with Category I or II, SEP.
The applicable European guidelines and standards can be found in the relevant EU Declarations of Conformity. The following were also applied:
EN 60529:
Degrees of protection provided by enclosures (IP code)
DIN EN 60770 (IEC 60770):
Transmitters for use in industrial process control systems Part 1: Methods for performance evaluation
Methods for evaluating the performance of transmitters for control and regulation in industrial process control systems.
DIN 16086:
Electrical pressure measuring instruments, pressure sensors, pressure transmitters, pressure measuring instruments, concepts, specifications on data sheets
Procedure for writing specifications in data sheets for electrical pressure measuring instruments, pressure sensors and pressure transmitters.
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Deltabar FMD71, FMD72
EN 61326-X:
EMC product family standard for electrical equipment for measurement, control and laboratory use.
NAMUR - User association of automation technology in process industries.
NE21 - Electromagnetic Compatibility (EMC) of Industrial Process and Laboratory Control Equipment.
NE43 - Standardization of the Signal Level for the Failure Information of Digital Transmitters.
NE32 - Data Retention in the Event of a Power Failure in Field and Control Instruments with Microprocessors
NE44 - Standardization of Status Indicators on PCT Instruments with the Help of Light Emitting Diodes
NE53 - Software of Field Devices and Signal-processing Devices with Digital Electronics
NE107 - Self-monitoring and Diagnosis of Field Devices

CRN approval

Classification of process sealing between electrical systems and (flammable or combustible) process fluids in accordance with ANSI/ISA
12.27.01

Calibration unit

A CRN approval is available for some device versions. A CRN-approved process connection with a CSA approval must be ordered for a CRN-approved device. The CRN-approved devices are assigned a registration number.
Ordering information: Product Configurator order code for "Process connection" (the CRN process connections are indicated appropriately in the "Mechanical construction" section.)
Endress+Hauser devices are designed in accordance with ANSI/ISA 12.27.01. allowing the user to waive the use and save the cost of installing external secondary process seals in the conduit as required by the process sealing sections of ANSI/NFPA 70 (NEC) and CSA 22.1 (CEC). These instruments comply with the North American installation practice and provide a very safe and cost­saving installation for pressurized applications with hazardous fluids. Please refer to the following table for the seal class assigned (single seal or dual seal):
Device Approval Single seal MWP
Deltabar FMD71/FMD72 CSA, FM IS, XP, NI 40 bar (580psi)
Further information can be found in the control drawings of the relevant devices.
Description Option
Level range; % A
Differential pressure range; mbar/bar B
Differential pressure range; kPa/MPa C
Differential pressure range; mm/mH2O D
Differential pressure range; inH2O/ftH2O E
Differential pressure range; psi F
Customer-specific level; see additional spec K
Customer-specific pressure; see additional spec. J
1)
1) Product Configurator order code for "Calibration; unit"

Calibration

Inspection certificates

Description Option
Factory calibration certificate, 5-point F1
1) Product Configurator order code for "Calibration"
Description Option
3.1 Material documentation, wetted metal parts, EN10204-3.1 inspection certificate YES
Declaration of Conformity NACE MR0175, wetted metal parts JB
1)
1)
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Deltabar FMD71, FMD72
Description Option
Helium leak test, internal procedure, inspection certificate KD
Pressure test, internal procedure, inspection certificate KE
1) Product Configurator order code for "Test, certificate"
1)
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Ordering information

Detailed ordering information is available from the following sources:
• In the Product Configurator on the Endress+Hauser website: www.endress.com→ Select country→ Products→ Select product→ Product page function: Configure this product
• From your Endress+Hauser Sales Center: www.endress.com/worldwide
Product Configurator - the tool for individual product configuration
• Up-to-the-minute configuration data
• Depending on the device: Direct input of information specific to measuring point, e.g. measuring range
• Automatic verification of exclusion criteria
• Automatic creation of the order code and its breakdown in PDF or Excel output format
• Ability to order directly from the Endress+Hauser Online Shop

Scope of delivery

• Measuring device
• Optional accessories
• Brief Operating Instructions
• Certificates
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Supplementary documentation

Deltabar FMD71, FMD72

Field of Activities

Technical Information

Operating Instructions

Brief Operating Instructions

Safety Instructions (XA)

Pressure measurement, powerful instruments for process pressure, differential pressure, level and flow:
FA00004P/00/EN
EMC test procedures TI00241F/00/EN
BA01044P/00/EN
KA01105P/00/EN - Brief Operating Instructions for devices
SD00354P/00/A2 - Screening with Cable Shield
Safety Instructions (XA) are supplied with the device depending on the approval. These instructions are an integral part of the Operating Instructions.
Device Directive Documentation Option
FMD71, FMD72 ATEX II 1/2G Ex ia IIC T6 Ga/Gb XA00619P BA
FMD71, FMD72 ATEX II 1/2G Ex d [ia] IIC T6 Ga/Gb XA00620P BC
FMD71, FMD72 ATEX II 3G Ex nA IIC T6 GC XA00621P BD
FMD71, FMD72 IEC Ex ia IIC T6 Ga/Gb XA00622P IA
FMD71, FMD72 IEC Ex d [ia] IIC T6 Ga/Gb XA00623P IB
FMD71, FMD72 CSA General Purpose - CD
FMD71, FMD72 NEPSI Ex ia IIC T4/T6 Ga/Gb XA01352P NA
FMD71, FMD72 NEPSI Ex d [ia] IIC T4/T6 Ga/Gb XA01352P NB
FMD71 FM C/US IS Cl.I Div.1 Gr.A-D, AEx ia, Zone 0,1,2 XA00628P FA
FMD71 FM C/US XP AIS Cl.I Div.1 Gr.A-D, Exd [ia] Zone 0,1,2 XA00629P FB
FMD71 CSA C/US XP Cl.I Div.1 Gr.A-D, Ex d [ia], Zone 0,1,2 XA00631P CB
FMD71 FM C/US NI Cl.I Div.2 Gr.A-D, Zone 2 XA00668P FD
FMD71 CSA C/US NI, Cl.I Div. 2, Gr.A-D Cl.I, Zone 2, IIC XA00670P CC
FMD71 CSA C/US IS Cl.I Div.1 Gr.A-D, Ex ia Zone 0,1,2 XA00630P CA
FMD72 CSA C/US IS Cl.I Div.1 Gr.A-D, Ex ia Zone 0,1,2 XA00626P CA
FMD72 CSA C/US XP Cl.I Div.1 Gr.A-D, Ex d [ia], Zone 0,1,2 XA00627P CB
FMD72 CSA C/US NI, Cl.I Div.2 Gr.A-D, Zone 2 XA00671P CC
FMD72 FM C/US IS Cl.I Div.1 Gr.A-D, AEx ia, Zone 0,1,2 XA00624P FA
FMD72 FM C/US XP AIS Cl.I Div.1 Gr.A-D, Exd [ia] Zone 0,1,2 XA00625P FB
FMD72 FM C/US NI Cl.I Div.2 Gr.A-D, Zone 2 XA00669P FD
1)
1) Product Configurator order code for "Approval"
The nameplate provides information on the Safety Instructions (XA) that are relevant for the device.

Registered trademarks

HARTâ

66 Endress+Hauser
Registered trademark of the HART Communication Foundation, Austin, USA
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