Endress+Hauser Deltabar FMD72 User manual

Operating Instructions
Deltabar FMD72
Electronic differential pressure for level measurement
Differential pressure transmitter with metal sensors
BA01044P/00/EN/02.12
71191239
Valid as of version
01.00.00

Deltabar FMD72 Table of contents
3
Table of contents
1 Document information ............... 5
1.1 Function of document and how to use .......... 5
1.2 Document conventions .................... 6
2 Basic safety instructions .............. 8
2.1 Requirements concerning the staff ............ 8
2.2 Designated use .......................... 8
2.3 Workplace safety ........................ 9
2.4 Operational safety ........................ 9
2.5 Product safety .......................... 9
3 Product description ................ 10
3.1 Product design ......................... 10
3.2 Function ............................. 11
3.3 Registered trademarks .................... 11
4 Incoming acceptance and product
identification ...................... 12
4.1 Incoming acceptance ..................... 12
4.2 Product identification .................... 13
5 Storage and transport ............... 14
5.1 Storage conditions ...................... 14
5.2 Transporting the product to the measuring point .. 14
6 Installation ........................ 15
6.1 Mounting dimensions .................... 15
6.2 Mounting location ...................... 15
6.3 Orientation ........................... 15
6.4 General installation instructions ............. 15
6.5 Installing the sensor modules ............... 16
6.6 Seal for flange mounting .................. 16
6.7 Installing the transmitter .................. 17
6.8 Post-installation check .................... 18
7 Electrical connection ............... 19
7.1 Connecting the sensor mod. LP to the sensor mod.
HP ................................. 19
7.2 Connecting the sensor module HP to the
transmitter ............................ 20
7.3 Connecting the measuring unit .............. 21
7.4 Connection conditions ................... 22
7.5 Connection data ........................ 23
7.6 Connecting the Field Xpert SFX100 ........... 24
7.7 Connecting the Commubox FXA195 .......... 24
7.8 Post-connection check ................... 24
8 Operation without an operating
menu ............................. 26
8.1 Position of operating elements .............. 26
9 Operation with an operating menu ..28
9.1 Operating concept ...................... 28
9.2 Structure of the operating menu ............. 28
9.3 Operating options ....................... 29
9.4 Operating the device using onsite display
(optional) ............................. 30
9.5 Operation using Endress+Hauser operating
program ............................. 33
9.6 Operation using Field Xpert SFX100 .......... 34
9.7 Direct access to parameters ................ 34
9.8 Locking/unlocking operation ............... 34
9.9 Resetting to factory settings (reset) ........... 35
10 Integrating transmitter using HART®
protocol ........................... 37
10.1 HART process variables and measured values .... 37
10.2 Device variables and measured values ......... 38
11 Commissioning .................... 39
11.1 Function check ........................ 39
11.2 Unlocking/locking configuration ............. 39
11.3 Commissioning without an operating menu ..... 39
11.4 Commissioning with an operating menu ....... 42
11.5 Selecting the language, measuring mode, high-
pressure side, and pressure engineering unit ..... 42
11.6 Pos. Zero Adjust ........................ 44
11.7 Configuring level measurement ............. 45
11.8 Linearization .......................... 55
11.9 Configuring pressure measurement ........... 58
11.10 Backing up or duplicating the device data ....... 59
11.11 Configuring the local display ............... 60
11.12 Protecting settings from unauthorized access .... 60
12 Diagnostics and troubleshooting ..... 61
12.1 Troubleshooting ........................ 61
12.2 Diagnostic events ....................... 61
12.3 Response of output to errors ................ 65
12.4 Firmware version ....................... 65
12.5 Disposal ............................. 65
13 Repair ............................. 66
13.1 General notes .......................... 66
13.2 Spare parts ............................ 67
14 Maintenance ...................... 68
14.1 Exterior cleaning ....................... 68

Table of contents Deltabar FMD72
4
15 Return ............................ 69
16 Overview of the operating menu .... 70
17 Description of device parameters .... 75
Index ................................. 105

Deltabar FMD72 Document information
5
1 Document information
1.1 Function of document and how to use
1.1.1 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.
1.1.2 Further standard device 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
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.
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.
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.
1.1.3 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.
Certificate/type of protection Documentation Version in the order code
ATEX II 1/2G Ex ia IIC T6 Ga/Gb XA00619P BA
ATEX II 1/2G Ex d [ia] IIC T6 Ga/Gb XA00620P BC
ATEX II 3G Ex nA IIC T6 BC XA00621P BD
IEC Ex ia IIC T6 Ga/Gb XA00622P IA
IEC Ex d [ia] IIC T6 Ga/Gb XA00623P IB
CSA C/US IS Cl.I Div.1 Gr.A-D, Ex ia Zone 0,1,2 XA00626P CA
CSA C/US XP Cl.I Div.1 Gr.A-D, Ex d [ia], Zone 0,1,2 XA00627P CB
CSA C/US Cl.I Div.2 Gr.A-D, Zone 2 XA00671P CC
FM C/US IS Cl.I Div.1 Gr.A-D, AEx ia, Zone 0,1,2 XA00624P FA
FM C/US XP AIS Cl.I Div.1 Gr.A-D, Exd [ia] Zone 0,1,2 XA00625P FB
FM C/US NI Cl.I Div.2 Gr.A-D, Zone 2 XA00669P FD
The nameplate provides information on the Safety Instructions (XA) that are relevant for the
device.

Document information Deltabar FMD72
6
1.2 Document conventions
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.
1.2.3 Tool symbols
Symbol Meaning
A0013442
Torx screwdriver
A0011220
Flat blade screwdriver
A0011219
Phillips head screwdriver
A0011221
Allen key
A0011222
Hexagon wrench

Deltabar FMD72 Document information
7
1.2.4 Symbols for certain types of information
Symbol Meaning
A0011182
Allowed
Indicates procedures, processes or actions that are allowed.
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
ÃResult of a sequence of actions
A0013562
Help in the event of a problem
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
-
A0011187
Hazardous area
Indicates a hazardous area.
.
A0011188
Safe area (non-hazardous area)
Indicates a non-hazardous location.

Basic safety instructions Deltabar FMD72
8
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 °F). When in operation, the sensor
may reach a temperature close to the medium temperature.

Deltabar FMD72 Basic safety instructions
9
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.

Product description Deltabar FMD72
10
3 Product description
3.1 Product design
Level measurement (level, volume and mass) with Deltabar:
2
13
A0016449
1Sensor module LP
2 Sensor module HP
3 Transmitter
The FMD72 is best suited to level measurement in tanks with pressure overlay, 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.

Deltabar FMD72 Product description
11
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:
P
HP
LP
Pressure
simulation
HP
Differential
pressure +
pressure inversion
Position
correction
(Calib.offset)
Diff.
pressure
simulation
Damping
Corrected
press.
Pressure
after
damping
Meas.
diff. pressure
Meas.
pressure HP
Meas.
pressure LP
Pressure
simulation
LP
Sensor
Trimm
HP
Sensor
calibration
HP
Sensor pressure HP
Sensor pressure LP
Sensor
Trimm
LP
Sensor
calibration
LP
A0017360-EN
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

Incoming acceptance and product identification Deltabar FMD72
12
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
ex works SW:
Dev.Rev.:
250002755-C
Ext. order code:
Ser. no.:
U=
Span
P
MWP
Order code:
Made in Germany, D-79689 Maulburg
L=
15
1
23
4
67
8910
11
12
13
14
5
16
A0016054
Do the data on the nameplate correspond to the order specifications and the
delivery note?

Deltabar FMD72 Incoming acceptance and product identification
13
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)
4.2.1 Nameplate
ex works SW:
Dev.Rev.:
250002755-C
Ext. order code:
Ser. no.:
U=
Span
P
MWP
Order code:
Made in Germany, D-79689 Maulburg
L=
1
2
3
A0016056
1Order code
2 Serial number (Ser. no.)
3 Extended order code (Ext. ord. cd.)

Storage and transport Deltabar FMD72
14
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

Deltabar FMD72 Installation
15
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 FMD72 is best suited to level measurement in tanks with pressure overlay, high distillation
columns and other containers 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.
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 380°.
• The transmitter is freely rotatable in the mounting bracket.
The sensor modules and transmitter can be easily aligned when mounted.
Your benefits
• Easy to mount by optimally aligning the housing
• Good, accessible device operation
• Optimum readability of the onsite display (optional)
• Simple pipe installation through optional alignment of the modules
max. 380°
2 mm
A0017506

Installation Deltabar FMD72
16
6.5 Installing the sensor modules
• The nameplate on the sensor module specifies where the sensor module is typically installed:
HP (bottom)
LP (top)
For further information see the "Function" (® ä 11)section.
• Due to the orientation of the sensor modules, there may be a shift in the zero point, i.e. when the
container 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"(® ä 39) or the "Position
adjustment" section(® ä 44) .
• 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 Seal for flange mounting
NOTICE
Distorted measurement results.
The seal is not allowed to press against the process isolating diaphragm as this could affect the
measurement result.
►Ensure that the seal is not touching the process isolating diaphragm.

Deltabar FMD72 Installation
17
1 2
A0017743
1 Process isolating diaphragm
2 Seal
6.7 Installing the transmitter
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.
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).
122 (4.8)
125.5 (4.94)
52 (2.05)
ø6 (0.24)ø70 (2.76)
mm (in)
A0017514

Installation Deltabar FMD72
18
6.7.1 Turning the display module
A0017524
!WARNING
Supply voltage switched off?
Risk of electric shock and/or explosion!
►Switch off the supply voltage before connecting the device.
1. If present (i.e. in devices with Ex d and Ex na approval), release the securing clamp of the
electronics compartment cover with an Allen key.
2. Unscrew the electronics compartment cover from the transmitter housing.
3. Pull out the display module with a gentle rotational movement.
4. Rotate the display module into the desired position: max. 4 ´ 90° in each direction.
5. Fit the display module on the electronics compartment in the desired position until it clicks
into place.
6. Screw the electronics compartment cover back onto the transmitter housing.
7. If present (i.e. in devices with Ex d and Ex na approval), tighten the securing clamp with an
Allen key (1 Nm (0.225 lbf)).
6.8 Post-installation check
mIs the device undamaged (visual inspection)?
m
Does the device conform to the measuring point specifications?
For example:
• Process temperature
• Process pressure
• Ambient temperature
• Measuring range
mAre the measuring point identification and labeling correct (visual inspection)?
mIs the device adequately protected from precipitation and direct sunlight?
mAre the securing screw and securing clamp tightened securely?

Deltabar FMD72 Electrical connection
19
7 Electrical connection
!WARNING
If the operating voltage is > 35 VDC: Dangerous contact voltage at terminals.
Risk of electric shock!
►In a wet environment, do not open the cover if voltage is present.
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 additional information, see "Function" (® ä 11) section.
7.1 Connecting the sensor mod. LP to the sensor mod. HP
!WARNING
Is the supply voltage switched off?
Risk of electric shock and/or explosion!
►Switch off the supply voltage before connecting the device.
• Screw on the housing cover of the terminal compartment of the sensor module LP.
• Guide the cable of the sensor module HP through the cable gland of the sensor module LP. Use
the shielded 4-wire cable that is provided. The wire ends are color-coded to match the
corresponding terminal.
• Connect device in accordance with the following diagrams.
• Screw down housing cover.
6
7
5
5
6
2 3 4
3
4
1
21
6
NPT ½"
M20
8
A0017528
1BK (black)
2 BU (blue)
3 WH (white)
4 BN (brown)
5 Sensor module LP
6 Sensor module HP
7 Ground terminal
8 Torque 0.4 Nm

Electrical connection Deltabar FMD72
20
7.1.1 Screening with cable shield
Screening with cable shield is described in the associated documentation SD00354P. The
documentation is provided with the connecting cables.
7.2 Connecting the sensor module HP to the transmitter
!WARNING
Is the supply voltage switched off?
Risk of electric shock and/or explosion!
►Switch off the supply voltage before connecting the device.
• Screw on the housing cover of the terminal compartment of the sensor module HP.
• Guide the cable of the transmitter through the cable gland of the sensor module HP. Use the
shielded 4-wire cable that is provided. The wire ends are color-coded to match the corresponding
terminal.
• Connect device in accordance with the following diagram.
• Screw down housing cover.
6
5
5
72 3 4
3
4
1
21
6
5
NPT ½"
M20 8
8
A0017529
1BK (black)
2 BU (blue)
3 WH (white)
4 BN (brown)
5 Sensor module HP
6 Transmitter
7 Ground terminal
8 Torque 0.4 Nm
7.2.1 Screening with cable shield
Screening with cable shield is described in the associated documentation SD00354P. The
documentation is provided with the connecting cables.