Endress+Hauser Deltabar PMD55B Technical specifications

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Brief Operating Instructions
Deltabar PMD55B
Differential pressure measurement
HART
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
KA01466P/00/EN/04.22-00
71582831
2022-08-31

Associated documentation Deltabar PMD55B HART
2 Endress+Hauser
1 Associated documentation
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.
A0023555
2 About this document
2.1 Document function
The Brief Operating Instructions contain all the essential information from incoming
acceptance to initial commissioning.
2.2 Symbols
2.2.1 Safety symbols
DANGER

Deltabar PMD55B HART About this document
Endress+Hauser 3
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
2.2.2 Electrical symbols
Ground connection:
Terminal for connection to the grounding system.
2.2.3 Symbols for certain types of information
Permitted:
Procedures, processes or actions that are permitted.
Forbidden:
Procedures, processes or actions that are forbidden.
Additional information:
Reference to documentation:
Reference to page:
Series of steps:
1.
,
2.
,
3.
Result of an individual step:
2.2.4 Symbols in graphics
Item numbers: 1, 2, 3 ...
Series of steps:
1.
,
2.
,
3.
Views: A, B, C, ...
2.2.5 Symbols on the device
Safety instructions:
Observe the safety instructions contained in the associated Operating Instructions.

Basic safety instructions Deltabar PMD55B HART
4 Endress+Hauser
2.2.6 Communication symbols
2.3 Registered trademarks
HART®
Registered trademark of the FieldComm Group, Austin, Texas, USA
Bluetooth®
The Bluetooth® wordmark and logos are registered trademarks of Bluetooth SIG, Inc. and any
use of these trademarks by Endress+Hauser is licensed. Other trademarks and trade names
are those of their respective owners.
Apple®
Apple, the Apple logo, iPhone, and iPod touch are trademarks of Apple Inc., registered in the
U.S. and other countries. App Store is a service mark of Apple Inc.
Android®
Android, Google Play and the Google Play logo are trademarks of Google Inc.
3 Basic safety instructions
3.1 Requirements for the personnel
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)
‣Follow instructions and comply with 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
3.2 Intended use
The Deltabar is a differential pressure transmitter for measuring pressure, flow, level and
differential pressure.
3.2.1 Incorrect use
The manufacturer is not liable for damage caused by improper or non-intended use.

Deltabar PMD55B HART Basic safety instructions
Endress+Hauser 5
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.
3.3 Workplace safety
When working 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.
3.4 Operational safety
Risk of injury!
‣Operate the device only if it is in proper technical condition, free from errors and faults.
‣The operator is responsible for the interference-free operation of the device.
Modifications 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 the repair of an electrical device.
‣Use original spare parts and accessories from Endress+Hauser only.
Hazardous area
To eliminate the risk of danger to persons or the facility when the device is used in the
approval-related area (e.g. explosion protection, pressure equipment safety):
‣Check the nameplate to verify if the device ordered can be put to its intended use in the
approval-related area.
‣Observe the specifications in the separate supplementary documentation that is an integral
part of these Instructions.
3.5 Product safety
This 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 it is safe to
operate.
It meets general safety standards and legal requirements. It also complies with the EC
directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser confirms
this by affixing the CE mark to the device.

Incoming acceptance and product identification Deltabar PMD55B HART
6 Endress+Hauser
3.6 Functional Safety SIL (optional)
The Functional Safety Manual must be strictly observed for devices that are used in functional
safety applications.
3.7 IT security
Endress+Hauser can only provide a warranty if the device is installed and used as described in
the Operating Instructions. The device is equipped with security mechanisms to protect it
against any inadvertent changes to the device settings. IT security measures in line with
operators' security standards and designed to provide additional protection for the device and
device data transfer must be implemented by the operators themselves.
3.8 Device-specific IT security
The device offers specific functions to support protective measures by the operator. These
functions can be configured by the user and guarantee greater in-operation safety if used
correctly. An overview of the most important functions is provided in the following section:
• Write protection via hardware write protection switch
• Access code to change the user role (applies for operation via Bluetooth, FieldCare,
DeviceCare, Asset Management Tools (e.g. AMS, PDM)
4 Incoming acceptance and product identification
4.1 Incoming acceptance
DELIVERY NOTE
1 = 2
A0016870
• Is the order code on the delivery note (1) identical to the order code on the product sticker
(2)?
• Are the goods undamaged?
• Do the data on the nameplate correspond to the order specifications and the delivery note?
• Is the documentation available?
• If required (see nameplate): are the Safety Instructions (XA) provided?
If you can answer "no" to any of these questions, please contact Endress+Hauser.

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Endress+Hauser 7
4.2 Storage and transport
4.2.1 Storage conditions
• Use the original packaging
• Store the device in clean and dry conditions and protect from damage caused by shocks
Storage temperature range
See Technical Information.
4.2.2 Transporting the product to the measuring point
LWARNING
Incorrect transport!
Housing and membrane may become damaged, and there is a risk of injury!
‣Transport the device to the measuring point in the original packaging.
5 Mounting
NOTICE
The device can be damaged if handled incorrectly!
‣The removal of the screws with item number (1) is not permissible under any
circumstances and will void the warranty.
1
A0025336
5.1 Mounting requirements
5.1.1 General instructions
• Do not clean or touch the membrane with hard and/or pointed objects.
• Do not remove the protection on the membrane until just before installation.
Always firmly tighten the housing cover and the cable entries.
1. Counter-tighten the cable entries.
2. Tighten the coupling nut.

Mounting Deltabar PMD55B HART
8 Endress+Hauser
5.1.2 Installation instructions
• To ensure optimal readability of the local display, adjust the housing and local display
• Endress+Hauser offers a mounting bracket to mount the device on pipes or walls
• When measuring in media containing solids (e.g. dirty liquids), installing separators and
drain valves is useful for capturing and removing sediment
• Using a valve manifold allows for easy commissioning, installation and maintenance
without interrupting the process
• When mounting the device, establishing the electrical connection and during operation:
prevent the penetration of moisture into the housing
• Point the cable and plug downwards as much as possible to prevent moisture from entering
(e.g. rainwater or condensation)
5.1.3 Installing pressure piping
• For recommendations for routing pressure piping, refer to DIN 19210 "Differential pressure
piping for flow measurement devices" or the corresponding national or international
standards
• When routing the pressure piping outdoors, ensure sufficient anti-freeze protection, e.g. by
using pipe heat tracing
• Install the pressure piping with a monotonic gradient of at least 10%
5.2 Mounting the device
5.2.1 Flow measurement
Flow measurement in gases
Mount the device above the measuring point so that condensate can drain into the process
pipe.
Flow measurement in vapors
• Mount the device below the measuring point
• Mount the condensate traps at the same height as the tapping points and at the same
distance to the device
• Prior to commissioning, fill the piping to the height of the condensate traps
Flow measurement in liquids
• Mount the device below the measuring point so that the piping is always filled with liquid
and gas bubbles can run back into the process pipe
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment

Deltabar PMD55B HART Mounting
Endress+Hauser 9
5.2.2 Level measurement
Level measurement in open vessels
• Mount the device below the lower measuring connection so that the piping is always filled
with liquid
• The low-pressure 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 a closed vessel
• Mount the device below the lower measuring connection so that the piping is always filled
with liquid
• Always connect the low-pressure 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 vessel with superimposed vapor
• Mount the device below the lower measuring connection so that the piping is always filled
with liquid
• Always connect the low-pressure side above the maximum level
• The condensate trap ensures constant pressure on the low-pressure side
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment
5.2.3 Pressure measurement
Pressure measurement with 160 bar (2 400 psi) and 250 bar (3 750 psi) measuring cell
• Mount the device above the measuring point so that the condensate can drain into the
process pipe
• The negative side is open to atmospheric pressure via the screwed-in reference air filter of
the side flange on the low-pressure side
5.2.4 Differential pressure measurement
Differential pressure measurement in gases and vapors
Mount the device above the measuring point so that condensate can drain into the process
pipe.
Differential pressure measurement in liquids
• Mount the device below the measuring point so that the piping is always filled with liquid
and gas bubbles can run back into the process pipe
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment

Electrical connection Deltabar PMD55B HART
10 Endress+Hauser
5.2.5 Closing the housing cover
NOTICE
Thread and housing cover damaged from dirt and fouling!
‣Remove fouling (e.g. sand.) on the thread of the cover and housing.
‣If you continue to encounter resistance when closing the cover, check the thread again for
fouling.
Housing thread
The thread of the electronics and connection compartment is coated with lubricant
varnish.
Avoid additional lubrication.
6 Electrical connection
6.1 Connecting requirements
6.1.1 Potential equalization
The protective ground on the device must not be connected. If necessary, the potential
matching line can be connected to the outer ground terminal of the device before the device is
connected.
1
A0045411
1 Ground terminal for connecting the potential matching line
LWARNING
Explosion Hazard!
‣Please refer to the separate documentation on applications in hazardous areas for the
safety instructions.
For optimum electromagnetic compatibility:
• Keep the potential matching line as short as possible
• Maintain a cross-section of at least 2.5 mm2 (14 AWG)