Endress+Hauser Deltabar S PMD75 Technical specifications

Products Solutions Services
KA01024P/00/EN/18.16
71336239
Brief Operating Instructions
Deltabar S
PMD75, FMD77, FMD78
Differential pressure measurement
These Instructions are Brief Operating Instructions; they are not
a substitute for the Operating Instructions pertaining to the
device.
Detailed information about the device can be found in the
Operating Instructions and the other documentation:
Available for all device versions via:
– Internet: www.endress.com/deviceviewer
– Smart phone/tablet: Endress+Hauser Operations App

Deltabar S FOUNDATION Fieldbus
2Endress+Hauser
A0023555
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.

Deltabar S FOUNDATION Fieldbus Table of contents
Endress+Hauser 3
Table of contents
1 Document information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Document function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Registered trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Terms and abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5 Turn down calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Basic safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Requirements concerning the staff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Workplace safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 Hazardous area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.1 Product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Device designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.4 CE mark, Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 Registered trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.1 Incoming acceptance and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Installation conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3 Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.4 Post-installation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.1 Connecting the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2 Connecting the measuring unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.3 Overvoltage protection (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.4 Post-connection check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
6.1 Onsite display (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.2 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.3 FOUNDATION Fieldbus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.4 Local operation – onsite display connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.5 HistoROM®/M-DAT (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.6 FieldCare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.7 Locking/unlocking operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.8 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.9 Factory setting (reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
7.1 Configuring messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.2 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.3 Commissioning via an FF configuration program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.4 Selecting the language and measuring mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.5 Position adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.6 Flow measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.7 Level measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7.8 Differential pressure measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.9 Scaling the OUT parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Document information Deltabar S FOUNDATION Fieldbus
4Endress+Hauser
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
1.2.2 Electrical symbols
Symbol Meaning
A0011189-DE
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
seriousor fatal injury.
A0011190-DE
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
seriousor fatal injury.
A0011191-DE
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minoror medium injury.
A0011192-DE
NOTICE!
This symbol contains information on procedures and other facts which do not result in
personalinjury.
Symbol Meaning Symbol Meaning
Direct current Alternating current
Direct current and alternating current Ground connection
A grounded terminal which, as far as
the operator is concerned, is grounded
via a grounding system.
Protective ground connection
A terminal which must be connected to
ground prior to establishing any other
connections.
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.
DANGER
WARNING
CAUTION
NOTICE
)

Deltabar S FOUNDATION Fieldbus Document information
Endress+Hauser 5
1.2.3 Tool symbols
1.2.4 Symbols for certain types of information
Symbol Meaning
A0011221
Allen key
A0011222
Hexagon wrench
Symbol Meaning
A0011182
Permitted
Indicates procedures, processes or actions that are permitted.
A0011184
Forbidden
Indicates procedures, processes or actions that are forbidden.
A0011193
Tip
Indicates additional information.
A0015482
Reference to documentation
A0015484
Reference to page
A0015487
Reference to graphic
A0031595
Series of steps
A0018343
Result of a sequence of actions
A0015502
Visual inspection
,… ,
1. 2. 3.

Document information Deltabar S FOUNDATION Fieldbus
6Endress+Hauser
1.2.5 Symbols in graphics
1.2.6 Symbols at the device
1.3 Registered trademarks
KALREZ, VITON, TEFLON
Registered trademarks of E.I. Du Pont de Nemours & Co., Wilmington, USA
TRI-CLAMP
Registered trademark of Ladish & Co., Inc., Kenosha, USA
FOUNDATIONTM Fieldbus
Registered trademark of the FieldComm Group, Austin, USA
GORE-TEX®
Registered trademarks of W.L. Gore & Associates, Inc., USA
Symbol Meaning
1, 2, 3, 4, ... Item numbers
A0031595
Series of steps
A, B, C, D, ... Views
Symbol Meaning
A0019159
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions.
,… ,
1. 2. 3.

Deltabar S FOUNDATION Fieldbus Document information
Endress+Hauser 7
1.4 Terms and abbreviations
A0029505
Position Term/Abbreviation Explanation
1 OPL The OPL (over pressure limit = sensor overload limit) for the 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 notes, see technical
information.
The OPL may be applied for a limited time period.
2 MWP The MWP (maximum working pressure) for the sensors 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 notes, see technical information.
The MWP may be applied for an unlimited time.
3 Maximum sensor
measuring range
Range between LRL and URL
This span is the maximum calibratable/adjustable measuring span.
URL OPLMWP
LRL
0
p
LRV URV
1
2
3
4

Document information Deltabar S FOUNDATION Fieldbus
8Endress+Hauser
1.5 Turn down calculation
A0029545
Fig. 1:
1 Calibrated/Adjusted measuring span
2Zero-basedspan
3 Upper range limit
4 Calibrated/Adjusted
measuring span
Range between LRV and URV
Factory setting: 0...URL
Other calibrated spans can be ordered with customised settings.
p - Pressure
- LRL Lower range limit
- URL Upper range limit
- LRV Lower range value
- URV Upper range value
-TD Turndown
Position Term/Abbreviation Explanation
LRV URLURV LRL
1 = 2 3
Example
• Sensor: 10 bar (150 psi)
• Upper range limit (URL) = 10 bar (150 psi)
Turn down (TD):
• Calibrated/Adjusted measuring span: 0...5 bar
(0...75 psi)
• Lower range value (LRV) = 0 bar
• Upper range value (URV) = 5 bar (75 psi)
TD = URL
|URV - LRV|
TD = 10 bar (150 psi) =2
|5 bar (75 psi) - 0 bar (0 psi)|
In this example, the TD is thus 2:1.
This span is based on the zero point.

Deltabar S FOUNDATION Fieldbus Basic safety instructions
Endress+Hauser 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
The Deltabar S is a differential pressure transmitter for measuring differential pressure, flow
and level.
2.2.1 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.
2.3 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.

Identification Deltabar S FOUNDATION Fieldbus
10 Endress+Hauser
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.
2.5 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.
2.6 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.
3 Identification
3.1 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).

Deltabar S FOUNDATION Fieldbus Identification
Endress+Hauser 11
3.2 Device designation
3.2.1 Nameplates
• The MWP (maximum working pressure) is specified on the nameplate. This value refers to a
reference temperature of +20 °C (68°F) and may be applied to the device for an unlimited
time. Observe temperature dependency of the MWP. The pressure values permitted at higher
temperatures can be found in the standards EN 1092-1: 2001 Tab. 18 (With regard to their
stability-temperature property, the materials 1.4435 and 1.4404 are grouped together under
13EO 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.
• For PMD75, the MWP applies for the temperature ranges specified in the Technical
Information TI00382P in the "Ambient temperature range" and "Process temperature limits"
sections.
• The test pressure corresponds to the over pressure limit (OPL) of the device = MWP x 1.5.
• The Pressure Equipment Directive (2014/68/EU) uses the abbreviation "PS".
The abbreviation "PS" corresponds to the MWP (maximum working pressure) of the
measuring device.
3.2.2 Identifying the sensor type
See parameter "Sensor Meas.Type" in Operating Instruction BA00303P.
3.3 Scope of delivery
The scope of delivery comprises:
• Deltabar S differential pressure transmitter
• For PMD75 with side flanges made of AISI 316L or C22.8: additionally 2 vent valves, AISI
316L
• PMD75 with side flanges made of AISI 316L or C22.8 and side vent: additionally 4 locking
screws, AISI 316L
• For devices with the "HistoROM/M-DAT" option: CD-ROM with Endress+Hauser operating
program
• Optional accessories
Documentation supplied:
• Operating Instructions BA00301P and BA00303P are available via the Internet.
See: www.endress.com Download.
• Brief Operating Instructions KA01024P
• Fold-out brochure KA00252P
• Final inspection report
• Additional Safety Instructions with ATEX, IECEx and NEPSI devices
• Optional: factory calibration form, test certificates

Identification Deltabar S FOUNDATION Fieldbus
12 Endress+Hauser
3.4 CE mark, Declaration of Conformity
The devices are designed to meet state-of-the-art safety requirements, have been tested and left
the factory in a condition in which they are safe to operate. The devices comply with the
applicable standards and regulations as listed in the EC Declaration of Conformity and thus
comply with the statutory requirements of the EC Directives. Endress+Hauser confirms the
conformity of the device by affixing to it the CE mark.
3.5 Registered trademarks
KALREZ, VITON, TEFLON
Registered trademarks of E.I. Du Pont de Nemours & Co., Wilmington, USA
TRI-CLAMP
Registered trademark of Ladish & Co., Inc., Kenosha, USA
FOUNDATIONTM Fieldbus
Registered trademark of the Fieldbus Foundation Austin, Texas, USA

Deltabar S FOUNDATION Fieldbus Installation
Endress+Hauser 13
4 Installation
NOTICE
Incorrect handling!
Damage of the device!
‣Disassembly of the screws with item number (1) is not permissible under any circumstances
and will result in loss of warranty.
A0025336
4.1 Incoming acceptance and storage
4.1.1 Incoming acceptance
• Check the packaging and the contents for damage.
• Check the shipment, make sure nothing is missing and that the scope of supply matches your
order.
4.1.2 Transport
WARNING
!
Incorrect transport
Housing and diaphragm may be damaged and and there is a risk of injury!
‣Transport the measuring device to the measuring point in its original packaging or by the
process connection (with secure transport protection for the diaphragm).
‣Follow the safety instructions and transport conditions for devices of more than 18 kg
(39.69 lbs).
‣Do not use capillaries as a carrying aid for the diaphragm seals.
4.1.3 Storage
The device must be stored in a dry, clean area and protected against impact (EN 837-2).
Storage temperature range:
• –40 to +90°C (–40 to +194 °F)
• Onsite display: –40 to +85°C (–40 to +185°F)
• Separate housing: –40 to +60°C (–40 to +140°F)
1

Installation Deltabar S FOUNDATION Fieldbus
14 Endress+Hauser
4.2 Installation conditions
4.2.1 Dimensions
For dimensions, please refer to the Technical Information for Deltabar S TI00382P,
"Mechanical construction" section.
4.3 Installation instructions
• Due to the orientation of the Deltabar S, there may be a shift in the measured value, i.e. when
the container is empty or partially full, the measured value does not display zero. You can
correct this zero point shift using the "Zero" key on the electronic insert or externally on the
device or via the onsite display. ä27, Section 6.2.1 "Position of the operating elements",
ä29, Section 6.2.3 "Function of the operating elements – onsite display connected" and
ä37, Section 7.5 "Position adjustment"..
• For FMD77 and FMD78, please refer to Section 4.3.4 "Installation instructions for devices
with diaphragm seals (FMD78)", ä16.
• General recommendations for routing the pressure piping can be found in DIN 19210
"Methods for measurement of fluid flow; differential piping for flow measurement devices" or
the corresponding national or international standards.
• Using a three-way or five-way valve manifold allows for easy commissioning, installation and
maintenance without interrupting the process.
• When routing the pressure piping outdoors, ensure that sufficient antifreeze protection is
used, e.g. by using pipe heat tracing.
• Install the pressure piping with a monotonic gradient of at least 10%.
• To ensure optimal readability of the onsite display, it is possible to rotate the housing up to
380°. ä20, Section 4.3.9 "Rotating the housing".
• Endress+Hauser offers a mounting bracket for installing on pipes or walls.
ä18, Section 4.3.7 "Wall and pipe-mounting (optional)".
4.3.1 Installation for flow measurement
Flow measurement in gases with PMD75
• Mount the Deltabar S above the measuring point so that the condensate can run off into the
process piping.
Flow measurement in steam with PMD75
• Mount the Deltabar S below the measuring point.
• Mount the condensate traps at the same level as the tapping points and at the same distance
to the Deltabar S.
• Prior to commissioning, fill the pressure piping to the level of the condensate traps.
Flow measurement in liquids with PMD75
• Mount the Deltabar S below the measuring point so that the pressure piping is always filled
with liquid and gas bubbles can run back into the process piping.

Deltabar S FOUNDATION Fieldbus Installation
Endress+Hauser 15
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment.
4.3.2 Installation for level measurement
Level measurement in an open container with PMD75
• Mount the Deltabar S below the lower measuring connection so that the pressure piping is
always filled with liquid.
• The negative side is open to atmospheric pressure.
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment.
Level measurement in an open container with FMD77
• Mount the Deltabar S directly on the container. ä18, Section 4.3.5 "Seal for flange
mounting".
• The negative side is open to atmospheric pressure.
Level measurement in a closed container with PMD75
• Mount the Deltabar S below the lower measuring connection so that the pressure piping is
always filled with liquid.
• Always connect the impulse piping of negative side above the maximum level.
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment.
Level measurement in a closed container with FMD77
• Mount the Deltabar S directly on the container. ä18, Section 4.3.5 "Seal for flange
mounting".
• Always connect the impulse piping of negative side above the maximum level.
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment.
Level measurement in a closed container with FMD78
• Mount the Deltabar S below the lower diaphragm seal. ä16, Section 4.3.4 "Installation
instructions for devices with diaphragm seals (FMD78)".
• The ambient temperature should be the same for both capillaries.
Level measurement is only ensured between the upper edge of the lower diaphragm seal and
the lower edge of the upper diaphragm seal.
Level measurement in a closed container with superimposed steam with PMD75
• Mount the Deltabar S below the lower measuring connection so that the pressure piping is
always filled with liquid.
• Always connect the impulse piping of negative side above the maximum level.

Installation Deltabar S FOUNDATION Fieldbus
16 Endress+Hauser
• A condensate trap ensures constant pressure on the negative side.
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment.
Level measurement in a closed container with superimposed steam with FMD77
• Mount the Deltabar S directly on the container. ä18, Section 4.3.5 "Seal for flange
mounting".
• Always connect the impulse piping of negative side above the maximum level.
• A condensate trap ensures constant pressure on the negative side.
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment.
4.3.3 Installation for differential pressure measurement
Differential pressure measurement in gases and steam with PMD75
• Mount the Deltabar S above the measuring point so that the condensate can run off into the
process piping.
Differential pressure measurement in liquids with PMD75
• Mount the Deltabar S below the measuring point so that the pressure piping is always filled
with liquid and gas bubbles can run back into the process piping.
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment.
Differential pressure measurement in gases, steam and liquids with FMD78
• Mount the diaphragm seal with capillaries at the top or on the side on the piping.
• For vacuum applications: mount the Deltabar S below the measuring point. ä17,
Section 4.3.4, "Vacuum application (FMD78)".
• The ambient temperature should be the same for both capillaries.
4.3.4 Installation instructions for devices with diaphragm seals (FMD78)
• Please note that the hydrostatic pressure of the liquid columns in the capillaries can cause
zero point shift. The zero point shift can be corrected.
• Do not clean or touch the process isolating diaphragm of the diaphragm seal with hard or
pointed objects.
• Do not remove process isolating diaphragm protection until shortly before installation.
NOTICE
Improper handling!
Damage to the device!
‣A diaphragm seal and the pressure transmitter together form a closed, oil-filled calibrated
system. The fill fluid hole is sealed and may not be opened.

Deltabar S FOUNDATION Fieldbus Installation
Endress+Hauser 17
‣When using a mounting bracket, sufficient strain relief must be ensured for the capillaries
in order to prevent the capillary bending down (bending radius 100 (3.94 in)).
‣Please observe the application limits of the diaphragm seal filling oil as detailed in the
Technical Information for Deltabar S TI00382P, "Planning instructions for diaphragm seal
systems" section.
NOTICE
In order to obtain more precise measurement results and to avoid a defect in the device,
mount the capillaries as follows:
‣Vibration-free (in order to avoid additional pressure fluctuations)
‣Not in the vicinity of heating or cooling lines
‣Insulate if the ambient temperature is below or above the reference temperature
‣With a bending radius of 100 mm (3.94 in).
‣Do not use the capillaries as a carrying aid for the diaphragm seals!
‣The ambient temperature and length of both capillaries should be the same when using
two-sided diaphragm seal systems.
‣Two diaphragm seals which are the same (e.g. with regard to diameter, material, etc.)
should always be used for the negative and positive side (standard delivery).
P01-FMD78xxx-11-xx-xx-xx-005
Fig. 2: Mounting Deltabar S, FMD78 with diaphragm seals and capillaries, recommended mounting for vacuum
applications: mount pressure transmitter below the lowest diaphragm seal!
Vacuum application (FMD78)
See operrating instructions.
+ –
+
–
≥100 mm

Installation Deltabar S FOUNDATION Fieldbus
18 Endress+Hauser
4.3.5 Seal for flange mounting
NOTICE
Distorted measurement results.
The seal is not allowed to press on the process isolating diaphragm as this could affect the
measurement result.
‣Ensure that the seal is not touching the process isolating diaphragm.
A0017743
Fig. 3:
1 Process isolating diaphragm
2Seal
4.3.6 Heat insulation – FMD77
See operrating instructions.
4.3.7 Wall and pipe-mounting (optional)
Endress+Hauser offers the following mounting brackets for installing the device on pipes or
walls:
12

Deltabar S FOUNDATION Fieldbus Installation
Endress+Hauser 19
The standard mounting bracket version is not suitable for use in an application subject to
vibrations.
The vibration resistance of the reinforced version of the mounting bracket has been tested
according to IEC 61298-3, see the "Vibration resistance" section in the technical documentation
TI00382P.
When using a valve block, the block's dimensions must be taken into account.
Bracket for wall and pipe mounting including retaining bracket for pipe mounting and two nuts.
material of the screws used to secure the device depend on the order code.
Technical data (e.g. dimensions or order numbers for screws) see accessory document
SD01553P/00/EN.
NOTICE
Incorrect handling!
Damage of the device!
‣Disassembly of the screws with item number (1) is not permissible under any circumstances
and will result in loss of warranty.
Standard design Heavy duty design
A0031326 A0031327

Installation Deltabar S FOUNDATION Fieldbus
20 Endress+Hauser
A0025335
4.3.8 Assembling and mounting the "separate housing" version
See operrating instructions.
4.3.9 Rotating the housing
The housing can be rotated up to 380° by loosening the Allen screw.
A0019996
1. T14 housing: Loosen setscrew with a 2 mm (0.08 in) Allen key.
T15 andT17 housing: Loosen setscrew with a 3 mm (0.12 in) Allen key.
2. Rotate housing (max. up to 380 °).
3. Retighten setscrew with 1 Nm (0,74 lbf ft.
1
2
1
2
T14 T15 T17
2 3