Endress+Hauser Deltabar FMD71 User manual

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Operating Instructions
Deltabar FMD71, FMD72
Level measurement with electronic differential pressure
Electronic differential pressure transmitter with ceramic
and metal sensors
BA01044P/00/EN/04.14
71243974
Valid as of version
01.00.00

Deltabar FMD71, FMD72 Table of contents
3
Table of contents
1 Document information .............. 5
1.1 Document function ..................... 5
1.2 Symbols used .......................... 5
1.3 Documentation ........................ 7
1.4 Registered trademarks ................... 8
2 Basic safety instructions ............ 9
2.1 Requirements concerning the staff .......... 9
2.2 Designated use ........................ 9
2.3 Workplace safety ...................... 10
2.4 Operational safety ..................... 10
2.5 Product safety ........................ 10
3 Product description ................ 11
3.1 Product design ........................ 11
3.2 Function ............................ 12
3.3 Registered trademarks .................. 12
4 Incoming acceptance and product
identification ..................... 13
4.1 Incoming acceptance ................... 13
4.2 Product identification ................... 14
4.3 Nameplates .......................... 14
5 Storage and transport ............. 17
5.1 Storage conditions ..................... 17
5.2 Transporting the product to the measuring
point ............................... 17
6 Installation ....................... 18
6.1 Mounting dimensions .................. 18
6.2 Mounting location ..................... 18
6.3 Orientation .......................... 18
6.4 General installation instructions ........... 18
6.5 Thermal insulation - FMD71 high-
temperature version .................... 19
6.6 Installing the sensor modules ............. 20
6.7 Installing the transmitter ................ 21
6.8 Closing the housing covers ............... 22
6.9 Seal for flange mounting ................ 22
6.10 Post-installation check .................. 23
7 Electrical connection .............. 24
7.1 Connecting the sensor module LP to the
sensor module HP ..................... 24
7.2 Connecting the sensor module HP to the
transmitter .......................... 25
7.3 Connecting the measuring unit ............ 26
7.4 Connection conditions .................. 27
7.5 Connection data ....................... 28
7.6 Post-connection check .................. 29
8 Operation without an operating
menu ............................. 30
8.1 Position of operating elements ............ 30
9 Operation with an operating
menu ............................. 32
9.1 Operating concept ..................... 32
9.2 Structure of the operating menu ........... 32
9.3 Operating options ..................... 33
9.4 Operating the device using onsite display
(optional) ........................... 33
9.5 Operation using Endress+Hauser operating
program ............................ 36
9.6 Direct access to parameters .............. 37
9.7 Locking/unlocking operation ............. 37
9.8 Resetting to factory settings (reset) ........ 38
10 Integrating transmitter using
HART® protocol ................... 40
10.1 HART process variables and measured
values .............................. 40
10.2 Device variables and measured values ....... 41
11 Commissioning .................... 42
11.1 Function check ....................... 42
11.2 Unlocking/locking configuration .......... 42
11.3 Commissioning without an operating menu .. 42
11.4 Commissioning with an operating menu ..... 45
11.5 Selecting the language, measuring mode,
high-pressure side, and pressure engineering
unit ................................ 45
11.6 Pos. Zero Adjust ....................... 47
11.7 Configuring level measurement ........... 48
11.8 Linearization ......................... 58
11.9 Configuring pressure measurement ........ 61
11.10 Backing up or duplicating the device data .... 62
11.11 Configuring the local display ............. 63
11.12 Protecting settings from unauthorized
access .............................. 63
12 Diagnostics and troubleshooting ... 64
12.1 Troubleshooting ...................... 64
12.2 Diagnostic events ...................... 64
12.3 Response of output to errors .............. 68
12.4 Firmware history ...................... 68
12.5 Disposal ............................ 68
13 Maintenance ...................... 69
13.1 Exterior cleaning ...................... 69

Table of contents Deltabar FMD71, FMD72
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14 Repair ............................ 70
14.1 General notes ........................ 70
14.2 Spare parts .......................... 71
15 Return ............................ 72
16 Overview of the operating menu .... 73
17 Description of device parameters ... 78
18 Registered trademarks ........... 108
18.1 HARTâ............................ 108
19 Technical data ................... 109
Index ................................. 110

Deltabar FMD71, FMD72 Document information
5
1 Document information
1.1 Document function
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.
1.2 Symbols used
1.2.1 Safety symbols
Symbol Meaning
DANGER
A0011189-EN
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
A0011190-EN
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
A0011191-EN
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
A0011192-EN
NOTICE!
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.2.2 Electrical symbols
Symbol Meaning
A0011197
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
A0011198
Alternating current
A terminal to which alternating voltage is applied or through which alternating current flows.
A0017381
Direct current and alternating current
• A terminal to which alternating voltage or DC voltage is applied.
• A terminal through which alternating current or direct current flows.
A0011200
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding
system.
A0011199
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
A0011201
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.

Document information Deltabar FMD71, FMD72
6
1.2.3 Tool symbols
Symbol Meaning
A0013442
Torx screwdriver
A0011220
Flat blade screwdriver
A0011219
Cross-head screwdriver
A0011221
Allen key
A0011222
Hexagon wrench
1.2.4 Symbols for certain types of information
Symbol Meaning
A0011182
Permitted
Indicates procedures, processes or actions that are permitted.
A0011183
Preferred
Indicates procedures, processes or actions that are preferred.
A0011184
Forbidden
Indicates procedures, processes or actions that are forbidden.
A0011193
Tip
Indicates additional information.
A0011194
Reference to documentation
Refers to the corresponding device documentation.
A0011195
Reference to page
Refers to the corresponding page number.
A0011196
Reference to graphic
Refers to the corresponding graphic number and page number.
,… ,
Series of steps
Result of a sequence of actions
A0013562
Help in the event of a problem
A0015502
Visual inspection
1.2.5 Symbols in graphics
Symbol Meaning
1, 2, 3 ... Item numbers
,… ,
Series of steps
A, B, C, ... Views
A-A, B-B, C-C, ... Sections

Deltabar FMD71, FMD72 Document information
7
Symbol Meaning
-
A0011187
Hazardous area
Indicates a hazardous area.
.
A0011188
Safe area (non-hazardous area)
Indicates the non-hazardous area.
1.3 Documentation
The document types listed are available:
• On the CD supplied with the device
• In the Download Area of the Endress+Hauser Internet site: www.endress.com 
Download
1.3.1 Technical Information TI01033P: helps in planning your
device
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.
1.3.2 Brief Operating Instructions KA01105P: getting the 1st
measured value quickly
The Brief Operating Instructions contain all the essential information from incoming
acceptance to initial commissioning.
1.3.3 Description of Device Parameters GP01013P: reference for
your parameters
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.
1.3.4 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 Certificate/type of protection Documentation Version 1)
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 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

Document information Deltabar FMD71, FMD72
8
Device Certificate/type of protection Documentation Version 1)
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) Product Configurator, "Approval" section
The nameplate provides information on the Safety Instructions (XA) that are relevant
for the device.
1.4 Registered trademarks
1.4.1 HARTâ
Registered trademark of the HART Communication Foundation, Austin, USA

Deltabar FMD71, FMD72 Basic safety instructions
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2 Basic safety instructions
2.1 Requirements concerning the staff
The personnel for installation, commissioning, diagnostics and maintenance must fulfill
the following requirements:
‣Trained, qualified specialists: must have a relevant qualification for this specific
function and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Before beginning work, the specialist staff must have read and understood the
instructions in the Operating Instructions and supplementary documentation as well as
in the certificates (depending on the application)
‣Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
‣Being instructed and authorized according to the requirements of the task by the
facility's owner-operator
‣Following the instructions in these Operating Instructions
2.2 Designated use
2.2.1 Application and media
The Deltabar FMD72 is a differential pressure transmitter for measuring differential
pressure and level in pressurized tanks. The device has two sensor modules, which
measure the operating pressure (High Pressure HP and Low Pressure LP). The differential
pressure/hydrostatic level is calculated in the transmitter unit. 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. If
the limit values specified in the "Technical Data" and the conditions listed in the
instructions and additional documentation are observed, the measuring device may be
used for the following measurements (process variables):
Measured process variables
• Pressure HP and Pressure LP
• Sensor temperature
Calculated process variables
• Differential pressure
• Level (level, volume or mass)
2.2.2 Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated use.
Verification for borderline cases:
‣For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistance
in verifying the corrosion resistance of fluid-wetted materials, but does not accept any
warranty or liability.
2.2.3 Residual risks
Due to heat transfer from the process as well as power loss in the electronics, the
temperature of the electronics housing and the assemblies contained therein (e.g. display
module, main electronics module and I/O electronics module) may rise up to 80 °C (176

Basic safety instructions Deltabar FMD71, FMD72
10
°F). When in operation, the sensor may reach a temperature close to the medium
temperature.
Danger of burns from contact with surfaces!
‣For elevated fluid temperature, ensure protection against contact to prevent burns.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
‣Switch off the supply voltage before connecting the device.
2.4 Operational safety
Risk of injury!
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers
‣If, despite this, modifications are required, consult with Endress+Hauser.
Repair
To ensure continued operational safety and reliability,
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to repair of an electrical device.
‣Use original spare parts and accessories from Endress+Hauser only.
Hazardous area
To eliminate a danger for persons or for the facility when the device is used in the
hazardous area (e.g. explosion protection, pressure vessel safety):
‣Based on the nameplate, check whether the ordered device is permitted for the
intended use in the hazardous area.
‣Observe the specifications in the separate supplementary documentation that is an
integral part of these Instructions.
2.5 Product safety
This measuring device is designed in accordance with good engineering practice to meet
state-of-the- art safety requirements, has been tested, and left the factory in a condition in
which they are safe to operate.
It fulfills general safety requirements and legal requirements. It also conforms to the EC
directives listed in the device-specific EC declaration of conformity. Endress+Hauser
confirms this fact by applying the CE mark.