Endress+Hauser Deltabar FMD71 User manual

Products Solutions Services
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
4
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
9
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.

Deltabar FMD71, FMD72 Product description
11
3 Product description
3.1 Product design
Level measurement (level, volume and mass) with Deltabar:
2
13
A0016449
1 Sensor module LP
2 Sensor module HP
3 Transmitter
The FMD71/FMD72 is best suited to level measurement in tanks with pressure overlay or
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.

Product description Deltabar FMD71, FMD72
12
3.2 Function
3.2.1 Differential pressure generation
The measurement chain for the calculation of the differential pressure can be represented
by the following diagram:
Sensor press.
LP
Measured
pressure LP
 
LP 
Sensor
calibration LP 
Sensor trim LP

Pressure
simulation LP
Corrected
pressure
Pressure after
damping
Measured
differential
pressure
  
Differential
pressure +
pressure
inversion

Pos. zero
adjust (calib.
offset)

Differential
pressure
simulation
 Damping  P

HP Sensor
calibration HP Sensor trim HP Pressure simulation HP
 
Sensor press.
HP
Measured
pressure HP
All the process values represented on the diagram are updated in a measurement cycle.
The sensor module allocation is determined by the configuration when setting up the
device. The connection to the transmitter defines the corresponding sensor module as the
master. After commissioning, the second sensor module is detected as the slave. This
configuration can be modified as desired. However, a modification must take place with
the unit disconnected from the power supply.
The sensor modules have a designation independent of the master/slave configuration.
This indicates where the sensor module is typically installed:
• Sensor module LP
LP = Low pressure; top
• Sensor module HP
HP = High pressure; bottom
For identical sensor module ranges, this assignment can likewise be changed, but this then
has to be configured in the menu.
If you change both sensor modules or the electronics, this allocation must likewise be
carried out. See "Connect transm. (286)" parameter .
3.3 Registered trademarks
3.3.1 HARTâ
Registered trademark of the HART Communication Foundation, Austin, USA

Deltabar FMD71, FMD72 Incoming acceptance and product identification
13
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
A0015502
DELIVERY NOTE
1 = 2
A0016870
Is the order code on the delivery note (1) identical to the order code on
the product sticker (2)?
A0016052
A0015502
A0016053
Are the goods undamaged?
A0015502
DELIVERY NOTE
Span
Ser. no.:
Order code:
P
U:
Deltabar
Ext. order code:
Order Code:
Ser.-No.:
MWP
Span
U=
Mat. -
Dat.:
0044
Mat.:
P
Ser. no.:
MWP
Sensor module Deltabar
A0016054
Do the data on the nameplate correspond to the order specifications and
the delivery note?

Incoming acceptance and product identification Deltabar FMD71, FMD72
14
A0015502
A0016055
Are the CD-ROM (product documentation) and documentation present?
If required (see nameplate): Are the safety instructions (XA) present?
If one of these conditions is not met, please contact your Endress+Hauser sales office.
4.2 Product identification
The following options are available for identification of the measuring device:
• Nameplate specifications
• Order code with breakdown of the device features on the delivery note
• Enter serial numbers from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): All information about the measuring device is
displayed.
For an overview of the technical documentation provided, enter the serial number from
the nameplates in the W@M Device Viewer (www.endress.com/deviceviewer)
4.3 Nameplates
4.3.1 Nameplates of the T14 transmitter housing
Ser. no.:
Order code:
Ext. order code:
25
6
3
4
1
A0016056
1 Device name
2 Order number (shortened for re-ordering)
3 Extended order number (complete)
4 Technical data
5 Serial number (for clear identification)
6 Manufacturer's address

Deltabar FMD71, FMD72 Incoming acceptance and product identification
15
Additional nameplate for devices with Ex approval
2
1
A0021222
1 Approval-specific information
2 Document number of Safety Instructions or drawing number
Additional nameplate for devices with PVDF process connection
1
A0022683
1 Application limits
4.3.2 Nameplates of the T17 transmitter housing
2
7
3
4
5
6
1
Ser. no.:
Order code:
Ext. ord. cd.:
A0021552
1 Device name
2 Manufacturer's address
3 Order number (shortened for re-ordering)
4 Extended order number (complete)
5 Serial number (for clear identification)
6 Technical data
7 Approval-related information and document number of Safety Instructions or drawing number

Incoming acceptance and product identification Deltabar FMD71, FMD72
16
4.3.3 Nameplate of the sensor housing
0044
Mat.:
P
Ser. no.:
MWP
Sensor module Deltabar
2
1
A0021224
1 Sensor serial number
2 Identification of sensor type (HP/LP)

Deltabar FMD71, FMD72 Storage and transport
17
5 Storage and transport
5.1 Storage conditions
Use original packaging.
5.1.1 Storage temperature range
–40 to +80 °C (–40 to +176 °F)
5.2 Transporting the product to the measuring point
฀WARNING
Risk of damage to housing!
Risk of injury.
‣Transport the measuring device to the measuring point in its original packaging or by
the process connection.
‣Follow the safety instructions and transport conditions for devices weighing more than
18 kg (39.6 lbs).
A0016058

Installation Deltabar FMD71, FMD72
18
6 Installation
When measuring in media containing solids, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment.
6.1 Mounting dimensions
For dimensions, see the "Mechanical construction" section in TI01033P.
6.2 Mounting location
The FMD71/FMD72 is best suited to level measurement in vessels with pressure overlay
or vacuum 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.
6.3 Orientation
• 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).
6.4 General installation instructions
Mounting the sensor modules and transmitter is very easy
• The housings of the sensor modules can be rotated up to 480°.
• The transmitter is freely rotatable in the mounting bracket.
The sensor modules and transmitter can be easily aligned when mounted.
Your benefits
• Easy mounting 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.

Deltabar FMD71, FMD72 Installation
19
2 mm
3 mm
A0017506
6.5 Thermal insulation - FMD71 high-temperature
version
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".
A
B
1 2
A0021075
A Ambient temperature
B Process temperature
1 Insulation height
2 Insulation material

Installation Deltabar FMD71, FMD72
20
6.6 Installing the sensor modules
6.6.1 General installation instructions
• The nameplate on the sensor module specifies where the sensor module is typically
installed:
HP (bottom)
LP (top)
For further information, see the "Function" (  12) section.
• 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.
You can correct this zero point shift: see "Commissioning without an operating menu"
(  42) or the "Position adjustment" section(  47) .
• 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.
• If a heated sensor module is cooled during the cleaning process (e.g. by cold water), a
vacuum develops for a short time, whereby moisture can penetrate the sensor through
the pressure compensation (3). If this is the case, mount the sensor with the pressure
compensation (3) pointing downwards.
• Keep the pressure compensation and GORE-TEX® filter (3) free from contamination.
• Do not clean or touch process isolating diaphragms with hard or pointed objects.
2
3
1
A0017512
6.6.2 Mounting sensor modules with PVDF process connections
฀WARNING
Risk of damage to process connection!
Risk of injury!
‣Sensor modules with PVDF process connections must be installed with the mounting
bracket supplied!
The mounting bracket can be installed on pipes with a diameter of 1¼" to 2" or on walls.
In the case of pipe mounting, the nuts on the bracket must be tightened uniformly with a
torque of at least 5 Nm (3.69 lbf ft).