Endress+Hauser Deltabar M PMD55 Technical specifications

KA01027P/00/EN/14.12
71157157
Brief Operating Instructions
Deltabar M
PMD55
Differential pressure measurement
These are Brief Operating Instructions.
For more detailed information, please refer to the Operating Instructions and the
additional documentation on the CD-ROM provided.
These Brief Operating Instructions are not intended to replace the Operating
Instructions provided in the scope of supply.
The complete device documentation consists of:
• these Brief Operating Instructions
• a CD-ROM with:
– the Operating Instructions
– Technical Information

Table of contents Deltabar M 4...20 mA HART
2Endress+Hauser
Table of contents
1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Installation, commissioning and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Operational safety and process safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Safety icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Installation position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Post-installation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Connecting the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Connecting the measuring unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Potential equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Post-connection check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Operation without operating menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Operation with operating menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1 Commissioning without an operating menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Commissioning with an operating menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.3 Position zero adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.4 Commissioning of Differential pressure measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.5 Commissioning of Flow measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.6 Commissioning of Level measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Deltabar M 4...20 mA HART Safety instructions
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1 Safety instructions
1.1 Designated use
The Deltabar M is a differential pressure transmitter for measuring differential pressure, level and
flow.
The manufacturer accepts no liability for damages resulting from incorrect use or use other than
that designated.
1.2 Installation, commissioning and operation
• The device must only be installed, connected, commissioned and maintained by qualified and
authorized specialists (e.g. electrical technicians) in full compliance with the instructions in
this manual, the applicable norms, legal regulations and certificates (depending on the
application).
• The specialist must have read and understood this manual and must follow the instructions it
contains. If you are unclear on anything in these Brief Operating Instructions, you must read
the Operating Instructions (on the CD-ROM). The Operating Instructions provide detailed
information on the device/measuring system.
• The device may only be modified or repaired if such work is expressly permitted in the
Operating Instructions (→ see CD-ROM).
• If faults cannot be rectified, the device must be taken out of service and secured against
unintentional commissioning.
• Do not operate damaged devices. Mark them as defective.
1.3 Operational safety and process safety
• Alternative monitoring measures must be taken to ensure operational safety and process safety
during confiugration, testing and maintenance work on the device.
• The device is safely built and tested according to state-of-the-art technology and has left the
factory in perfect condition as regards technical safety. The applicable regulations and
European standards have been taken into account.
• Pay particular attention to the technical data on the nameplate.
• Devices for use in hazardous areas are fitted with an additional nameplate. If the device is to
be installed in an explosion hazardous area, then the specifications in the certificate as well as
all national and local regulations must be observed. The device is accompanied by separate
"Ex documentation", which is an integral part of this Operating Instructions. The installation
regulations, connection values and Safety Instructions listed in this Ex document must be
observed. The documentation number of the related Safety Instructions is also indicated on
the additional nameplate.
• If using devices for applications with safety integrity level, the separate manual on functional
safety must be observed thoroughly (→ see CD-ROM).

Installation Deltabar M 4...20 mA HART
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1.4 Return
Follow the instructions on returning the device as outlined in the Operating Instructions on the
CD-ROM provided.
1.5 Safety icons
2 Installation
2.1 Installation position
!Note!
• Due to the orientation of the Deltabar M, there may be a shift in the measured value, i.e. when
the container is empty, the measured value does not display zero. You may correct this zero
point shift by a position adjustment in one of the following ways:
– via the operation keys on the electronics module (→ä11, "Function of the operating
elements")
– via the operating menu (→ä24, "Position zero adjustment")
• General recommendations for routing the impulse 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-valve or five-valve manifold allows for easy commissioning, installation and
maintenance without interrupting the process.
• When routing the impulse piping outdoors, ensure that sufficient anti-freeze protection is
used, e.g. by using pipe heat tracing.
• Install the impulse piping with a monotonic gradient of at least 10%.
• Endress+Hauser offers a mounting bracket for installing on pipes or walls (see Operating
Instructions BA00382P).
Symbol Meaning
#Warning!
A warning highlights actions or procedures which, if not performed correctly, will lead to personal injury,
a safety hazard or destruction of the instrument.
"Caution!
Caution highlights actions or procedures which, if not performed correctly, may lead to personal injury or
incorrect functioning of the instrument.
!Note!
A note highlights actions or procedures which, if not performed correctly, may indirectly affect operation
or may lead to an instrument response which is not planned.

Deltabar M 4...20 mA HART Installation
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2.1.1 Installation position for flow measurement
!Note!
For more information about differential pressure flow measurement refer to following
documents:
• Differential pressure flow measurements with orifices: Technical Information TI00422P
• Differential pressure flow measurement with Pitot tubes: Technical Information TI00425P
Flow measurement in gases
• Mount the Deltabar M above the measuring point so that the condensate which may be
present, can run off into the process piping.
Flow measurement in steam
• Mount the Deltabar M below the measuring point.
• Mount the condensate traps at the same level as the tapping points and at the same distance
to the Deltabar M.
• Prior to commissioning, fill the impulse piping to the height of the condensate traps.
Flow measurement in liquids
• Mount the Deltabar M below the measuring point so that the impulse 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.
2.1.2 Installation position for level measurement
Level measurement in an open container
• Mount the Deltabar M below the lower measuring connection so that the impulse piping is
always filled with liquid.
• The low-pressure 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 container
• Mount the Deltabar M below the lower measuring connection so that the impulse piping is
always filled with liquid.
• Always connect the low-pressure 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.

Installation Deltabar M 4...20 mA HART
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Level measurement in a closed container with superimposed steam
• Mount the Deltabar M below the lower measuring connection so that the impulse piping is
always filled with liquid.
• Always connect the low-pressure above the maximum level.
• A condensate trap ensures constant pressure on the low-pressure.
• When measuring in media with solid parts, such as dirty liquids, installing separators and drain
valves is useful for capturing and removing sediment.
2.1.3 Installation position for differential pressure measurement
Differential pressure measurement in gases and steam
• Mount the Deltabar M above the measuring point so that the condensate which may be
present, can run off into the process piping.
Differential pressure measurement in liquids
• Mount the Deltabar M below the measuring point so that the impulse 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.
2.2 Post-installation check
After installing the device, carry out the following checks:
• Are all screws firmly tightened?
• Are the housing covers screwed down tight?
• Are all locking screws and vent valves firmly tightened?

Deltabar M 4...20 mA HART Wiring
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3 Wiring
3.1 Connecting the device
!Note!
• When using the measuring device in hazardous areas, installation must comply with the
corresponding national standards and regulations and the Safety Instructions or Installation or
Control Drawings.
• A suitable circuit breaker has to be provided for the device in accordance with IEC/EN
61010.
• Devices with integrated overvoltage protection must be earthed.
• Protective circuits against reverse polarity, HF influences and overvoltage peaks are
integrated.
The procedure
1. Check if the supply voltage matches the specified supply voltage on the nameplate.
2. Switch off the supply voltage before connecting the device.
3. Remove housing cover.
4. Guide cable through the gland. Preferably use twisted, screened two-wire cable.
5. Connect device in accordance with the following diagram.
6. Screw down housing cover.
7. Switch on supply voltage.
P01-PMD55xxx-04-xx-xx-xx-010
Electrical connection 4...20 mA HART
1 Terminals for supply voltage and signal
2Testterminals
3 Grounding terminal
4 Supply voltage: 11,5 ... 45 VDC (versions with plug connectors: 35 V DC)
5 External ground terminal
11.5 V DC
- +
1
2
3
4
5
4…20 mA

Wiring Deltabar M 4...20 mA HART
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3.2 Connecting the measuring unit
3.2.1 Supply voltage
!Note!
• When using the measuring device in hazardous areas, installation must comply with the
corresponding national standards and regulations and the Safety Instructions or Installation or
Control Drawings.
• All explosion protection data are given in separate documentation which is available upon
request. The Ex documentation is supplied as standard with all devices approved for use in
explosion hazardous areas.
Taking 4 to 20 mA test signal
A 4 to 20 mA test signal may be measured via the test terminals without interrupting the
measurement.
To keep the corresponding measured error below 0.1%, the current measuring device should
exhibit an internal resistance of < 0.7 Ω.
3.2.2 Cable specification
• Endress+Hauser recommends using twisted, shielded two-wire cables.
• Terminals for wire cross-sections 0.5 to 2.5 mm2 (20 to 14 AWG)
• Cable outer diameter: 5 to 9 mm (0.2 to 0.35 in) depends on the used cable gland (see
technical information)
3.2.3 Shielding/potential equalization
• You achieve optimum shielding against disturbances if the shielding is connected on both
sides (in the cabinet and on the device). If potential equalization currents are expected in the
plant, only ground shielding on one side, preferably at the transmitter.
• When using in hazardous areas, you must observe the applicable regulations.
Separate Ex documentation with additional technical data and instructions is included with
all Ex systems as standard.
3.3 Potential equalization
Hazardous area applications: Connect all devices to the local potential equalization.
Observe the applicable regulations.
Electronic version
4 to 20 mA HART,
for non-hazardous areas
11.5 to 45 V DC
(versions with plug-in connector 35 V DC)

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3.4 Post-connection check
Perform the following checks after completing electrical installation of the device:
• Does the supply voltage match the specifications on the nameplate?
• Is the device connected as per Section 3.1?
• Are all screws firmly tightened?
• Are the housing covers screwed down tight?
As soon as voltage is applied to the device, the green LED on the electronic insert lights up for
a few seconds or the connected local display lights up.
4 Operation
4.1 Operation without operating menu
4.1.1 Position of operating elements
The operating keys and DIP switches are located on the electronic insert in the device.
P01-Mxxxxxxx-19-xx-xx-xx-001
Fig. 1: HART electronic insert
1 DIP switch for locking/unlocking parameters relevant to the measured value
2 DIP switch for switching damping on/off
3 DIP switch for alarm current SW / Alarm Min (3.6 mA)
4DIPswitch:
Switch 4: "SW/Square root"; used to control the output characteristics
Switch 5: "SW/P2-High"; used to determine the high-pressure side
5 Slot for optional local display
6 Green LED to indicate successful operation
7 Operating keys for lower range value (zero) and upper range value (span)
➂➁
➅
on
off
SW / P2=High
SW / Alarm min
SW / Ö
damping
12345
➃
➄
➀
➆on
off
Display
Zero
Span
SW / P2=High
delta p only
SW / Alarm min
SW / Ö
damping

Operation Deltabar M 4...20 mA HART
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Function of the DIP switches
Switches Symbol/
labeling
Switch position
"off" "on"
1 The device is unlocked.
Parameters relevant to the measured value can
be modified.
The device is locked 1).
Parameters relevant to the measured value
cannot be modified.
2dampingτDamping is switched off.
The output signal follows measured value
changes without any delay.
Damping is switched on.
The output signal follows measured value
changes with the delay time τ.2)
3 SW/Alarm min The alarm current is defined by the setting in
the operating menu.
("Setup" -> "Extended setup" ->
"Curr. output" -> "Output fail mode")
The alarm current is 3.6 mA regardless of the
setting in the operating menu.
4SW/√The output characteristics is defined by the
setting in the operating menu.
• "Setup" -> "Measuring mode"
• "Setup" -> "Extended Setup" -> "Current
output" -> "Linear/Sqroot"
The measuring mode is "flow" and the output
characterisitcs is "Square root" regardless of
the settings in the operating menu.
5 SW/P2= High The high-pressure side is defined by the setting
in the operating menu.
("Setup" -> "High Press. Side")
The high-pressure side is allocated to the P2
pressure connection regardless of the setting in
the operating menu.
1) If operation is locked by means of the DIP switch, you can only unlock operation again by means of the DIP switch. If ope-
ration is locked by means of the operating menu, you can only unlock operation again using the operating menu.
2) The value for the delay time can be configured via the operating menu ("Setup" -> "Damping").
Factory setting: τ = 2 s or as per order specifications.

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Function of the operating elements
4.2 Operation with operating menu
4.2.1 Operation concept
The operation concept makes a distinction between the following user roles:
Operating key(s) Meaning
"Zero"
pressed for at least
3seconds
Get LRV
•"Pressure" measuring mode
The pressure present is accepted as the lower range value (LRV).
•"Level" measuring mode, "In pressure" level selection, "Wet" calibration mode
The pressure present is assigned to the lower level value ("Empty calibration").
!Note!
No function is assigned to the key if level selection = "In height" and/or calibration mode = "Dry"
•"Flow" measuring mode
There is no function allocated to the "Zero" key.
"Span"
pressed for at least
3seconds
Get URV
•"Pressure" measuring mode
The pressure present is accepted as the upper range value (LRV).
•"Level" measuring mode, "In pressure" level selection, "Wet" calibration mode
The pressure present is assigned to the upper level value ("Full calibration").
!Note!
No function is assigned to the key if level selection = "In height" and/or calibration mode = "Dry"
•"Flow" measuring mode
The pressure present is accepted as the maximum pressure ("Max. pressure flow") and allocated to
the maximum flow ("max. flow").
"Zero" and "Span"
pressed simultaneously
for at least 3 seconds
Position adjustment
The sensor characteristic curve is shifted such that the pressure present becomes the zero value.
User role Meaning
Operator Operators are responsible for the devices during normal "operation". This is usually limited to reading process
values either directly at the device or in a control room. If the work with the devices extends beyond value
read-off tasks, the tasks involve simple, application-specific functions that are used in operation. Should an error
occur, these users simple forward the information on the errors but do not intervene themselves.
Service
engineer/tech
nician
Service engineers usually work with the devices in the phases following device commissioning.
They are primarily involved in maintenance and troubleshooting activities for which simple settings have to be
made at the device.
Technicians work with the devices over the entire life cycle of the product.
Thus, commissioning and advanced settings and configurations are some of the tasks they have to carry out.
Expert Experts work with the devices over the entire product life cycle, but their device requirements are often
extremely high. Individual parameters/functions from the overall functionality of the devices are required for this
purpose time and again.
In addition to technical, process-oriented tasks, experts can also perform administrative tasks (e.g. user
administration).
"Experts" can avail of the entire parameter set.

Operation Deltabar M 4...20 mA HART
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4.2.2 Structure of the operating menu
User role Submenu Meaning/use
Operator Language Only consists of the "Language" parameter (000) where the operating language for the device
is specified.
The language can always be changed even if the device is locked.
Operator Display/operat. Contains parameters that are needed to configure the measured value display (selecting the
values displayed, display format, display contrast, etc.).
With this submenu, users can change the measured value display without affecting the actual
measurement.
Service
engineer/
technician
Setup Contains all the parameters that are needed to commission measuring operations. This
submenu has the following structure:
•Standard setup parameters
A wide range of parameters, which can be used to configure a typical application, is
available at the start. The measuring mode selected determines which parameters are
available.
After making settings for all these parameters, the measuring operation should be
completely configured in the majority of cases.
•"Extended setup" submenu
The "Setup" submenu contains additional parameters for more in-depth configuration of
the measurement operation to convert the measured value and to scale the output signal.
This menu is split into additional submenus depending on the measuring mode selected.
Service
engineer/
technician
Diagnosis Contains all the parameters that are needed to detect and analyze operating errors. This
submenu has the following structure:
•Diagnostic list
Contains up to 10 error messages currently pending.
•Event logbook
Contains the last 10 error messages (no longer pending).
•Instrument info
Contains information on the device identification.
•Measured values
Contains all the current measured values
•Simulation
Is used to simulate pressure, level, flow, current and alarm/warning.
•Reset
Expert Expert Contains all the parameters of the device (including those in one of the submenus). The
"Expert" submenu is structured by the function blocks of the device. It thus contains the
following submenus:
•System
Contains all the device parameters that neither affect measurement nor integration into a
distributed control system.
•Measurement
Contains all the parameters for configuring the measurement.
•Output
Contains all the parameters for configuring the current output.
•Communication
Contains all the parameters for configuring the HART interface.
•Application
Contains all the parameters for configuring the functions that go beyond the actual
measurement (e.g. totalizer).
•Diagnosis
Contains all the parameters that are needed to detect and analyze operating errors.

Deltabar M 4...20 mA HART Operation
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4.2.3 Operation with device display (optional)
A 4-line liquid crystal display (LCD) is used for display and operation. The local display shows
measured values, dialog texts, fault messages and notice messages.
For easy operation the display can be taken out of the housing (see figure steps 1 to 3). It is
connected to the device through a 90 mm (3.54 in) cable.
The display of the device can be turned in 90° stages (see figure steps 4 to 6).
Depending on the orientation of the device, this makes it easy to operate the device and read the
measured values.
P01-Mxxxxxxx-19-xx-xx-xx-008
1. 2. 3.
4. 5. 6.

Operation Deltabar M 4...20 mA HART
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Functions:
• 8-digit measured value display including sign and decimal point, bargraph for 4 to 20 mA
HART as current display
• Three keys for operation
• Simple and complete menu guidance as parameters are split into several levels and groups
• Each parameter is given a 3-digit parameter code for easy navigation
• Possibility of configuring the display to suit individual requirements and preferences, such as
language, alternating display, contrast setting, display of other measured values such as sensor
temperature etc.
• Comprehensive diagnostic functions (fault and warning message etc.)
P01-Mxxxxxxx-07-xx-xx-xx-002
E
+
–
Symbol
Operating keys
ValueDevice tag
Measured value display
Unit
Bargraph
Operating menu
Parameter with selection list
Freely editable parameter
Direct
Access
Code
Value that
can be
edited
Selection
options
Header line
Information
line
Main line

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Display symbols
Operating keys on the display and operating module
Symbol Meaning
Lock symbol
The operation of the device is locked. To unlock the device, →ä18, Locking/unlocking
operation.
Communication symbol
Data transfer via communication
Square root symbol
Active measuring mode "Flow measurement"
The root flow signal is used for the current output.
Error message "Out of specification"
The device is being operated outside its technical specifications (e.g. during warmup or cleaning
processes).
Error message "Service mode"
The device is in the service mode (during a simulation, for example).
Error message "Maintenance required"
Maintenance is required. The measured value remains valid.
Error message "Failure detected"
An operating error has occurred. The measured value is no longer valid.
Operating key(s) Meaning
O– Navigate downwards in the picklist
– Edit the numerical values and characters within a function
S– Navigate upwards in the picklist
– Edit the numerical values and characters within a function
F–Confirmentry
–Jumptothenextitem
– Selection of a menu item and activation of the editing mode
Oand FContrast setting of local display: darker
Sand FContrast setting of local display: brighter
O and SESC functions:
– Exit the edit mode for a parameter without saving the changed value.
– You are in a menu at a selection level. Each time you press the keys simultaneously, you go
up a level in the menu.
S
C
M
F

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Parameters with a picklist
Example: selecting "Deutsch" as the language of the menu.
User-definable parameters
Example: setting "Set URV" parameter from 100 mbar (1.5 psi) to 50 mbar (0.75 psi) .
Local display Operation
P01-PMD55xxx-19-xx-xx-xx-002
"English" is set as the menu language (default value). A ✓in front of
the menu text indicates the active option.
P01-PMD55xxx-19-xx-xx-xx-001
Select "Deutsch" with "+" or "–" .
P01-PMD55xxx-19-xx-xx-xx-000
1. Confirm your choice with "E". A ✓in front of the menu text
indicates the active option. ("Deutsch" is now selected as the
menu language.)
2. Exit the edit mode for the parameter with "E" .
Local display Operation
P01-PMD55xxx-19-xx-xx-xx-003
The local display shows the parameter to be changed. The value
highlighted in black can be changed. The "mbar" unit is specified in
another parameter and cannot be modified here.
P01-PMD55xxx-19-xx-xx-xx-004
1. Press "+" or "–" to get to the editing mode.
2. The first digit is highlighted in black.

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Accepting the pressure present
Example: setting position adjustment
P01-PMD55xxx-19-xx-xx-xx-005
1. Use "+" to change "1" to "5".
2. Confirm "5" with "E". The cursor jumps to the next position
(highlighted in black).
3. Confirm "0" with "E" (second position).
P01-PMD55xxx-19-xx-xx-xx-006
The third position is highlighted in black and can now be edited.
P01-PMD55xxx-19-xx-xx-xx-007
1. Switch to the "↵" symbol with the "-" key.
2. Use "E" to save the new value and exit the editing mode. →See
next graphic.
P01-PMD55xxx-19-xx-xx-xx-008
The new value for the upper range value is 50.0 mbar (0.75 psi).
– You exit the edit mode for the parameter with "E" .
– You can get back to the editing mode with "+" or
"–".
Local display Operation
P01-PMD55xxx-19-xx-xx-xx-009
The pressure for position adjustment is present at the device.
Local display Operation

Operation Deltabar M 4...20 mA HART
18 Endress+Hauser
4.2.4 Locking/unlocking operation
Once you have entered all the parameters, you can lock your entries against unauthorized and
undesired access.
Locked operation is indicated as follows:
• By the symbol on the onsite display
• The parameters are grayed out in FieldCare and the HART handheld terminal, which means
they cannot be edited. Indicated in the corresponding "Locking" parameter.
Parameters which refer to how the display appears, e.g. "Language" and "Display contrast", can
still be altered.
!Note!
If operation is locked by means of the DIP switch, you can only unlock operation again by means
of the DIP switch. If operation is locked by means of the operating menu, you can only unlock
operation again using the operating menu.
The "Operator code" parameter is used to lock and unlock the device.
P01-PMD55xxx-19-xx-xx-xx-010
Use "+" or "–" to switch to the "Confirm" option. The active option is
highlighted in black.
P01-PMD55xxx-19-xx-xx-xx-011
Accept the pressure present as position adjustment with the "E" key.
The device confirms the adjustment and goes back to the "Pos. zero
adjust" parameter.
P01-PMD55xxx-19-xx-xx-xx-009
Exit the edit mode for the parameter with "E" .
Local display Operation

Deltabar M 4...20 mA HART Commissioning
Endress+Hauser 19
The release code is defined in the "Code definition" parameter.
5Commissioning
#Warning!
• If a pressure smaller than the minimum permitted pressure or greater than the maximum
permitted pressure is present at the device, the following messages are output in succession:
1. "S140 Working range P" or "F140 Working range P"
2. "S841 Sensor range" or "F841 Sensor range"1)
3. "M431 Adjustment" or "F431 Sensor range"1
!Note!
The device is configured for the Pressure measuring mode as standard. The measuring range and
the unit in which the measured value is transmitted correspond to the specifications on the
nameplate.
Parameter name Description
Operator code (021)
Entry
Menu path:
Setup → Extended setup
→ Operator code
Use this function to enter a code to lock or unlock operation.
User input:
•Tolock:Enteranumber≠the release code (value range: 1 up to 9999).
• To unlock: Enter the release code.
!Note!
The release code is "0" in the order configuration. Another release code can be defined in the
"Code definition" parameter.
If the user has forgotten the release code, it can be made visible again by entering the
number sequence "5864".
Factory setting:
0
Parameter name Description
Code definition (023)
Entry
Menu path:
Setup → Extended setup
→ Code definition
Use this function to enter a release code with which the device can be unlocked.
User input:
• A number between 0 and 9999
Factory setting:
0
1) depending on the setting in the "Alarm behavior" (050) parameter

Commissioning Deltabar M 4...20 mA HART
20 Endress+Hauser
5.1 Commissioning without an operating menu
5.1.1 Pressure measuring mode
If no local display is connected, the following functions are possible by means of the keys on the
electronic insert:
• Position adjustment (zero point correction)
• Setting lower range value and upper range value
• Device reset
!Note!
• Operation must be unlocked. →ä18, "Locking/unlocking operation"
• The device is configured for the "Pressure" measuring mode as standard. You can switch
measuring modes by means of the "Measuring mode" parameter. →ä23, "Measuring mode
selection"
• The pressure applied must be within the nominal pressure limits of the sensor. See
information on the nameplate.
5.1.2 Level measuring mode
The following functions are possible by means of the keys on the electronic insert:
• Position adjustment (zero point correction)
• Setting the lower and upper pressure value and assigning to the lower and upper level value
Carrying out position adjustment.1) Setting lower range value. Setting upper range value.
Pressure is present at device. Desired pressure for lower range value
is present at device.
Desired pressure for upper range value is
present at device.
↓↓ ↓
Press the "Zero" and "Span" keys
simultaneously for at least 3 s.
Press the "Zero" key for at least 3 s. Press the "Span" key for at least 3 s.
↓↓ ↓
Does the LED on the electronic insert
light up briefly?
Does the LED on the electronic insert
light up briefly?
Does the LED on the electronic insert
light up briefly?
Yes No Yes No Yes No
↓↓ ↓↓ ↓ ↓
Applied pressure
for position
adjustment has
been accepted.
Applied pressure
for position
adjustment has
not been accepted.
Observe the input
limits.
Applied pressure
for lower range
value has been
accepted.
Applied pressure
for lower range
value has not been
accepted. Observe
the input limits.
Applied pressure
for upper range
value has been
accepted.
Applied pressure
for upper range
value has not been
accepted. Observe
the input limits.
1) Observe warning on commissioning (→ä19)