Endress+Hauser Deltabar M PMD55, Cerabar M PMC51, Cerabar M PMP55, Cerabar M PMP51 Brief Operating Instructions

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

KA01027P/00/EN/14.12
71157157

Table of contents Deltabar M 4...20 mA HART

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

2 Endress+Hauser

Deltabar M 4...20 mA HART Safety instructions

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).

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Installation Deltabar M 4...20 mA HART

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

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.

!

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 (→ ä 11, "Function of the operating

elements")

– via the operating menu (→ ä 24, "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).

4 Endress+Hauser

Deltabar M 4...20 mA HART Installation

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.

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Installation Deltabar M 4...20 mA HART

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?

6 Endress+Hauser

Deltabar M 4...20 mA HART Wiring

11.5 V DC

- +

1

2

3

4

5

4…20 mA

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.

Electrical connection 4...20 mA HART

1 Terminals for supply voltage and signal
2Test terminals
3 Grounding terminal
4 Supply voltage: 11,5 ... 45 VDC (versions with plug connectors: 35 V DC)
5 External ground terminal

P01-PMD55xxx-04-xx-xx-xx-010

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Wiring Deltabar M 4...20 mA HART

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.

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)

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.

2

• Terminals for wire cross-sections 0.5 to 2.5 mm

(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.

8 Endress+Hauser

Deltabar M 4...20 mA HART Operation

➂➁

➅

on

off

SW / P2=High

SW / Alarm min

SW / Ö

damping

1

2

345

➃

➄

➀

➆

on

off

Display

Zero

Span

SW / P2=High

delta p only

SW / Alarm min

SW / Ö

damping

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.

Fig. 1: HART electronic insert

P01-Mxxxxxxx-19-xx-xx-xx-001

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)
4DIP switch:

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)

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Operation Deltabar M 4...20 mA HART

Function of the DIP switches

Switches Symbol/

Switch position

labeling

"off" "on"

1 The device is unlocked.

Parameters relevant to the measured value can
be modified.

2damping τ Damping is switched off.

The output signal follows measured value
changes without any delay.

3 SW/Alarm min The alarm current is defined by the setting in

the operating menu.

The device is locked
Parameters relevant to the measured value
cannot be modified.

Damping is switched on.
The output signal follows measured value
changes with the delay time τ.

The alarm current is 3.6 mA regardless of the
setting in the operating menu.

1)

.

2)

("Setup" -> "Extended setup" ->
"Curr. output" -> "Output fail mode")

4SW/√ The output characteristics is defined by the

setting in the operating menu.

• "Setup" -> "Measuring mode"

The measuring mode is "flow" and the output
characterisitcs is "Square root" regardless of
the settings in the operating menu.

• "Setup" -> "Extended Setup" -> "Current
output" -> "Linear/Sqroot"

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 ope­ration 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.

10 Endress+Hauser

Deltabar M 4...20 mA HART Operation

Function of the operating elements

Operating key(s) Meaning

"Zero"

pressed for at least
3seconds

"Span"

pressed for at least
3seconds

"Zero" and "Span"
pressed simultaneously
for at least 3 seconds

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").

!

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.

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").

!

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").

Position adjustment

The sensor characteristic curve is shifted such that the pressure present becomes the zero value.

Note!

Note!

4.2 Operation with operating menu

4.2.1 Operation concept

The operation concept makes a distinction between the following user roles:

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

Expert Experts work with the devices over the entire product life cycle, but their device requirements are often

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.

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.

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Operation Deltabar M 4...20 mA HART

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

Service
engineer/
technician

Expert Expert Contains all the parameters of the device (including those in one of the submenus). The

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.

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" 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.

12 Endress+Hauser

Deltabar M 4...20 mA HART Operation

1.

2. 3.

4. 5. 6.

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

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Operation Deltabar M 4...20 mA HART

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

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.)

14 Endress+Hauser

P01-Mxxxxxxx-07-xx-xx-xx-002

Deltabar M 4...20 mA HART Operation

S

C

M

F

Display symbols

Symbol Meaning

Lock symbol

The operation of the device is locked. To unlock the device, → ä 18, 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 keys on the display and operating module

Operating key(s) Meaning

– Navigate downwards in the picklist
– Edit the numerical values and characters within a function

– Navigate upwards in the picklist
– Edit the numerical values and characters within a function

–Confirm entry
–Jump to the next item
– Selection of a menu item and activation of the editing mode

Contrast setting of local display: darker

O

O
S

F

and

F

and

S

O

Endress+Hauser 15

and

F

S

Contrast setting of local display: brighter

ESC 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.

Operation Deltabar M 4...20 mA HART

Parameters with a picklist

Example: selecting "Deutsch" as the language of the menu.

Local display Operation

"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-002

Select "Deutsch" with "+" or "–" .

P01-PMD55xxx-19-xx-xx-xx-001

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" .

P01-PMD55xxx-19-xx-xx-xx-000

User-definable parameters

Example: setting "Set URV" parameter from 100 mbar (1.5 psi) to 50 mbar (0.75 psi) .

Local display Operation

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-003

P01-PMD55xxx-19-xx-xx-xx-004

16 Endress+Hauser

1. Press "+" or "–" to get to the editing mode.

2. The first digit is highlighted in black.

Deltabar M 4...20 mA HART Operation

Local display Operation

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-005

The third position is highlighted in black and can now be edited.

P01-PMD55xxx-19-xx-xx-xx-006

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-007

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

"–".

P01-PMD55xxx-19-xx-xx-xx-008

Accepting the pressure present

Example: setting position adjustment

Local display Operation

The pressure for position adjustment is present at the device.

P01-PMD55xxx-19-xx-xx-xx-009

Endress+Hauser 17

Operation Deltabar M 4...20 mA HART

Local display Operation

Use "+" or "–" to switch to the "Confirm" option. The active option is
highlighted in black.

P01-PMD55xxx-19-xx-xx-xx-010

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-011

Exit the edit mode for the parameter with "E" .

!

P01-PMD55xxx-19-xx-xx-xx-009

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.

18 Endress+Hauser

Deltabar M 4...20 mA HART Commissioning

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:

•To lock: Enter a number ≠ the release code (value range: 1 up to 9999).

• To unlock: Enter the release code.

!

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

Note!

The release code is defined in the "Code definition" parameter.

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

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"

3. "M431 Adjustment" or "F431 Sensor range"

!

1) depending on the setting in the "Alarm behavior" (050) parameter

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.

1)

1

Endress+Hauser 19

Commissioning Deltabar M 4...20 mA HART

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. → ä 18, "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. → ä 23, "Measuring mode
selection"

• The pressure applied must be within the nominal pressure limits of the sensor. See
information on the nameplate.

Carrying out position adjustment.

Pressure is present at device. Desired pressure for lower range value

↓↓ ↓

Press the "Zero" and "Span" keys
simultaneously for at least 3 s.

↓↓ ↓

Does the LED on the electronic insert
light up briefly?

Yes No Yes No Yes No

1)

Setting lower range value. Setting upper range value.

is present at device.

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?

Desired pressure for upper range value is
present at device.

Does the LED on the electronic insert
light up briefly?

↓↓ ↓↓ ↓ ↓

Applied pressure
for position
adjustment has
been accepted.

1) Observe warning on commissioning (→ ä 19)

Applied pressure
for position
adjustment has
not been accepted.
Observe the input
limits.

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

20 Endress+Hauser

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.

Deltabar M 4...20 mA HART Commissioning

• Device reset

!

Note!

• The "Zero" and "Span" keys only have a function with the following setting:

– "Level selection" = "In pressure", "Calibration mode" = "Wet"
The keys have no function in other settings.

• The device is configured for the "Pressure" measuring mode as standard. You can switch

measuring modes by means of the "Measuring mode" parameter. → ä 23, "Measuring mode
selection"
The following parameters are set to the following values at the factory:
– "Level selection" = "In pressure"
– "Calibration mode": wet
– "Output unit": %
– "Empty calib.": 0.0
– "Full calib.": 100.0
– "Set LRV": 0.0 (corresponds to 4 mA value)
– "Set URV": 100.0 (corresponds to 20 mA value)

• Operation must be unlocked. → ä 18, "Locking/unlocking operation".

• The pressure applied must be within the nominal pressure limits of the sensor. See
information on the nameplate.

Carrying out position adjustment.

1)

Setting lower pressure value. Setting upper pressure value.

Pressure is present at device. Desired pressure for lower pressure

value ("empty pressure") is present at
device.

↓↓↓

Press the "Zero" and "Span" keys
simultaneously for at least 3 s.

↓↓↓

Does the LED on the electronic insert
light up briefly?

YesNo YesNo YesNo

↓↓ ↓↓ ↓↓

Applied pressure
for position
adjustment has
been accepted.

Applied pressure
for position
adjustment has not
been accepted.
Observe the input
limits.

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?

The pressure
present was saved
as the lower
pressure value
("empty pressure")
and assigned to the
lower level value
("empty
calibration").

The pressure
present was not
saved as the lower
pressure value.
Observe the input
limits.

Desired pressure for upper pressure
value ("full pressure") is present at
device.

Does the LED on the electronic insert
light up briefly?

The pressure
present was saved
as the upper
pressure value
("full pressure")
and assigned to the
upper level value
("full calibration").

The pressure
present was not
saved as the upper
pressure value.
Observe the input
limits.

1) Observe warning on commissioning (→ ä 19)

Endress+Hauser 21

Commissioning Deltabar M 4...20 mA HART

5.1.3 Flow measuring mode

The following functions are possible by means of the keys on the electronic insert:

• Position adjustment (zero point correction)

• Set the maximum pressure value and assign it to the maximum flow value

• Device reset

!

Note!

• The operation must be unlocked. → ä 18, "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. → ä 23, "Measuring mode
selection".

• DIP switch 4 (SW/√) on the electronics insert can be used to switch to the "Flow" measuring

mode. In this case, the "Measuring mode" parameter is adjusted automatically.

• The "Zero"- key does not have any function in the "Flow" measuring mode.

• The pressure applied must be within the nominal pressure limits of the sensor. See
information on the nameplate.

Carry out position adjustment.

Pressure is present at device. Desired pressure for the maximum

↓↓

Press the "Zero" and "Span" keys
simultaneously for at least 3 s.

↓↓

1)

Setting maximum pressure value.

pressure value ("Max. Press. Flow") is
present at device.

Press the "Span" key for at least 3 s.

Does the LED on the electronic insert light
up briefly?

Yes No Yes No

↓↓ ↓↓

Applied pressure for
position adjustment
has been accepted.

1) Observe warning concerning the commissioning (page → ä 19).

Applied pressure for
position adjustment
has not been
accepted. Observe
the input limits.

Does the LED on the electronic insert light
up briefly?

The pressure
present was saved as
the maximum
pressure value
("Max. Press. Flow")
and assigned to the
maximum flow
value ("Max.
Flow").

The pressure
present was not
saved as the
maximum pressure
value. Observe the
input limits.

22 Endress+Hauser

Deltabar M 4...20 mA HART Commissioning

5.2 Commissioning with an operating menu

5.2.1 Selecting the language, measuring mode and pressure unit

Language selection

Parameter name Description

Language (000)

Selection

Menu path:
Main menu → Language

Select the menu language for the local display.

Options:

• English

• Another language (as selected when ordering the device)

• Possibly a third language (language of the manufacturing plant)

Factory setting:
English

Measuring mode selection

Parameter name Description

Measuring mode
(005)

Selection

Menu path: Setup
→ Measuring mode

Select the measuring mode.
The operating menu is structured differently depending on the measuring mode selected.

!

If the measuring mode is changed, no conversion takes place. If necessary, the device has to
be recalibrated after the measuring mode has been changed.

Options:

• Pressure

• Level

•Flow

Factory setting:

Pressure

Note!

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Commissioning Deltabar M 4...20 mA HART

Pressure unit selection

Parameter name Description

Press. eng. unit (125)

Selection

Menu path: Setup
→ Press. eng. unit

Select the pressure unit.
If a new pressure unit is selected, all pressure-specific parameters are converted and displayed
with the new unit.

Options:

• mbar, bar

• mmH2O, mH2O, inH2O

•ftH2O

• Pa, kPa, MPa

•psi

•mmHg, inHg

•kgf/cm

Factory setting:

mbar or bar depending on the sensor nominal measuring range, or as per order specifications

2

5.3 Position zero adjustment

The pressure resulting from the orientation of the device can be corrected here.

Parameter name Description

Corrected press.
(172)

Display

Menu path:
Setup → Corrected
press.

Displays the measured pressure after sensor trim and position adjustment.

!

If this value is not equal to "0", it can be corrected to "0" by the position adjustment.

Note!

Pos. zero adjust (007)

Selection

Menu path:
Setup → Pos. zero adjust

Position zero adjustment – the pressure difference between zero (set point) and the measured
pressure need not be known.

Example:

– Measured value = 2.2 mbar (0.033 psi)
– You correct the measured value via the "Pos. zero adjust" parameter with the "Confirm"

option. This means that you assign the value 0.0 to the pressure present.
– Measured value (after pos. zero adjust) = 0.0 mbar
– The current value is also corrected.

Options

•Confirm

• Abort

Factory setting:

Abort

24 Endress+Hauser

Deltabar M 4...20 mA HART Commissioning

5.4 Commissioning of Differential pressure measurement

Parameter name Description

Measuring mode (005)

Selection

Switch P1/P2 (163)

Display

High pressure side (006)
(183)

Selection/Display

Press. eng. unit (125)

Selection

Corrected press. (172)

Display

Pos. zero adjust (007)

Selection

Select the "Pressure" measuring mode.

Indicates whether the "SW/P2High" DIP switch (DIP switch 5) is switched on.

Determines, which pressure input corresponds to the high-pressure side.

!

This setting is only valid if the "SW/P2High" DIP switch is in the OFF position (see
the "Pressure side switch" (163) parameter). Otherwise P2 corresponds to the
high- pressure side in any case.

Select the pressure unit.
If a new pressure unit is selected, all pressure-specific parameters are converted and
displayed with the new unit.

Displays the measured pressure after sensor trim and position adjustment.

Position adjustment – the pressure difference between zero (set point) and the
measured pressure need not be known.

Example:

– Measured value = 2.2 mbar (0.033 psi)
– You correct the measured value via the "Pos. zero adjust" parameter with the

– Measured value (after pos. zero adjust) = 0.0 mbar
– The current value is also corrected.

Note!

"Confirm" option. This means that you assign the value 0.0 to the pressure
present.

Set LRV (056)

Entry

Set URV (057)

Entry

Damping switch (164)

Display

Damping value (017)

Entry/Display

Pressure after damping (111)

Display

Set the pressure value for the lower current value (4 mA).

Set the pressure value for the upper current value (20 mA).

Displays the status of DIP switch 2 ("damping τ"), which is used to switch the
damping of the output signal on and off.

Enter damping time (time constant τ). The damping affects the speed at which the
measured value reacts to changes in pressure.

!

The damping is only active if DIP switch 2 ("damping τ") is in the ON position.

Displays the measured pressure after sensor trim, position adjustment and damping.

Note!

Endress+Hauser 25

Commissioning Deltabar M 4...20 mA HART

5.5 Commissioning of Flow measurement

5.5.1 Information on flow measurement

In the "Flow" measuring mode, the device determines a volume or mass flow value from the
differential pressure measured. The differential pressure is generated by means of primary
elements such as pitot tubes or orifice plates and depends on the volume or mass flow. Four flow
types are available: volume flow, norm volume flow (European norm conditions), standard
volume flow (American standard conditions), mass flow and flow in %.

In addition, the Deltabar M software is equipped with two totalizers as standard. The totalizers
add up the volume or the mass flow. The counting function and the unit can be set separately
for both totalizers. The first totalizer (totalizer 1) can be reset to zero at any time while the
second (totalizer 2) totalises the flow from commissioning onwards and cannot be reset.

!

Note!
The totalizers are not available for the "Flow in %" flow type.

Parameter name Description

Lin./SQRT switch (133)

Display

Measuring mode (005)
Selection

Pressure side switch (163)

Display

High pressure side (006)
(183)

Selection

Press. eng. unit (125)

Selection

Corrected press. (172)

Display

Displays the status of DIP switch 4 on the electronic insert, which is used to define
the output characteristics of the current output.

Select the "Flow" measuring mode.

Indicates whether the "SW/P2High" DIP switch (DIP switch 5) is switched on.

Determines, which pressure input corresponds to the high-pressure side.

!

This setting is only valid if the "SW/P2High" DIP switch is in the OFF position (see
the "Pressure side switch" (163) parameter). Otherwise P2 corresponds to the
high- pressure side in any case.

Select the pressure unit.
If a new pressure unit is selected, all pressure-specific parameters are converted and
displayed with the new unit.

Displays the measured pressure after sensor trim and position adjustment.

Note!

Pos. zero adjust (007)

Selection

Max. flow (009)

Entry

26 Endress+Hauser

Position adjustment – the pressure difference between zero (set point) and the
measured pressure need not be known.

Example:

– Measured value = 2.2 mbar (0.033 psi)
– You correct the measured value via the "Pos. zero adjust" parameter with the

"Confirm" option. This means that you assign the value 0.0 to the pressure

present.
– Measured value (after pos. zero adjust) = 0.0 mbar
– The current value is also corrected.

Enter maximum flow of primary element.
See also layout sheet of primary element. The maximum flow is assigned to the
maximum pressure which you enter via the "Max. pressure flow" (010) parameter.

Deltabar M 4...20 mA HART Commissioning

Parameter name Description

Max. pressure flow (010)

Entry

Damping switch (164)

Display

Damping value (017)

Entry/Display

Flow (018)

Display

Pressure after damping (111)

Display

Enter maximum pressure of primry element.
→ See layout sheet of primary element. This pressure is assigned to the flow defined
in the "Max. flow" (009) parameter.

Displays the status of DIP switch 2 "damping τ", which is used to switch the
damping of the output signal on and off.

Enter damping time (time constant τ). The damping affects the speed at which the
measured value reacts to changes in pressure.

!

The damping is only active if DIP switch 2 "damping τ" is in the ON position.

Displays the present flow value.

Displays the measured pressure after sensor trim, position adjustment and damping.

Note!

Endress+Hauser 27

Commissioning Deltabar M 4...20 mA HART

5.6 Commissioning of Level measurement

5.6.1 Information on level measurement

!

Note!
You have a choice of two methods for calculating the level: "In pressure" and "In height". The
table in the "Overview of level measurement" section that follows provides you with an
overview of these two measuring tasks.

• The limit values are not checked, i.e. the values entered must be appropriate for the sensor
and the measuring task for the device to be able to measure correctly.

• Customer-specific units are not possible.

• The values entered for "Empty calib./Full calib.", "Empty pressure/Full pressure", "Empty
height/Full height" and "Set LRV/Set URV" must be at least 1% apart. The value will be
rejected, and a message output, if the values are too close together.

5.6.2 Overview of level measurement

Measuring task Level

selection

Calibration takes place
by entering two
pressure/level value
pairs.

"In pressure" Via the "Output unit"

Measured
variable options

parameter: %, level,
volume or mass units.

Description Measured value display

• Calibration with reference
pressure (wet calibration),
→ ä 28

• Calibration without
reference pressure
(dry calibration) → ä 30

The measured value display
and the
"Level before lin" parameter
display the measured value.

Calibration takes place
by entering the density
and two height/level
value pairs.

5.6.3 Level selection "in pressure"
Calibration with reference pressure (wet calibration)

Example:

In this example, the level in a tank should be measured in "m". The maximum level is 3 m (9.8
ft). The pressure range is set to 0 to 300 mbar (4.5 psi).

Prerequisite:

• The measured variable is in direct proportion to the pressure.

• The tank can be filled and emptied.

!

Note!
The values entered for "Empty calib./Full calib." and" Set LRV/Set URV" must be at least 1%
apart. The value will be rejected, and a message output, if the values are too close together.
Other limit values are not checked, i.e. the values entered must be appropriate for the sensor
and the measuring task for the device to be able to measure correctly.

"In height" • Calibration with reference

pressure (wet calibration),
→ ä 34

• Calibration without
reference pressure
(dry calibration) → ä 31

28 Endress+Hauser

Deltabar M 4...20 mA HART Commissioning

3

0

h

[m]

0 300

p

[mbar]

➀

➁

Description

1 Perform "position zero adjustment" → ä 24.

2 Select the "Level" measuring mode via the "Measuring

mode (005)" parameter (→ ä 23).

Menu path: Setup → Measuring mode

3 Select a pressure unit via the "Press eng. unit"

parameter, here "mbar" for example.

Menu path: Setup → Press. eng. unit

4 Select the "In pressure" level mode via the "Level

selection" parameter.

Menu path: Setup → Extended setup → Level →
Level selection

5 Select a level unit via the "Output unit" parameter, here

"m" for example.

Menu path: Setup → Extended setup → Level →
Output unit

6 Select the "Wet" option via the "Calibration mode"

parameter.

Calibration with reference pressure (wet calibration)

1 See Table, Step 7
2 See Table, Step 8

P01-xxxxxxxx-05-xx-xx-xx-011

Menu path: Setup → Extended setup → Level →
Calibration mode

7 a. The hydrostatic pressure for the lower calibration

point is present at the device, here "0 mbar" for
example.

b. Select the "Empty calib." parameter.

c. Enter the level value, here "0 m" for example.

Confirming the value means you assign the
pressure value present to the lower level value.

Menu path: Setup → Extended setup → Level →
Empty calib.

8 a. The hydrostatic pressure for the upper calibration

point is present at the device, here "300 mbar"
(4.5 psi) for example.

b. Select the "Full calib." parameter.

c. Enter the level value, here "3 m" (9.8 ft) for

example. Confirming the value means you assign
the pressure value present to the upper level
value.

Menu path: Setup → Extended setup → Level →
Full calib.

9Result:

The measuring range is set for 0 to 3 m (9.8 ft).
0 m corresponds to an output current of 4 mA.
3 m (9.8 ft) corresponds to an output current of 20 mA.

Endress+Hauser 29

Commissioning Deltabar M 4...20 mA HART

5.6.4 Level selection "in pressure"
Calibration without reference pressure (dry calibration)

Example:

In this example, the volume in a tank should be measured in liters. The maximum volume of
1000 liters (264 US gal) corresponds to a pressure of 400 mbar (6 psi). The minimum volume
of 0 liters corresponds to a pressure of 0 mbar.

Prerequisite:

• The measured variable is in direct proportion to the pressure.

• This is a theoretical calibration i.e. the pressure and volume values for the lower and upper
calibration point must be known.

!

Note!
The values entered for "Empty calib./Full calib." and" Set LRV/Set URV" must be at least 1%
apart. The value will be rejected, and a message output, if the values are too close together.
Other limit values are not checked, i.e. the values entered must be appropriate for the sensor
and the measuring task for the device to be able to measure correctly.

Description

1 Perform "position zero adjustment" → ä 24.

2 Select the "Level" measuring mode via the "Measuring

mode (005)" parameter (→ ä 23).

Menu path: Setup → Measuring mode

3 Select a pressure unit via the "Press eng. unit"

parameter (→ ä 24), here "mbar" for example.

Menu path: Setup → Press. eng. unit

4 Select the "In pressure" level mode via the "Level

selection" parameter.

Menu path: Setup → Extended setup → Level →
Level selection

5 Select a volume unit via the "Output unit" parameter,

here "l" for example.

Menu path: Setup → Extended setup → Level →
Output unit

6 Select the "Dry" option via the "Calibration mode"

parameter.

Menu path: Setup → Extended setup → Level →
Calibration mode

30 Endress+Hauser

Deltabar M 4...20 mA HART Commissioning

1000

0

V
[l]

0 400

p

[mbar]

➀

➁

➂

➃

Description

7 Enter the volume value for the lower calibration point

via the "Empty calib." parameter, here "0 liter" for
example.

Menu path: Setup → Extended setup → Level →
Empty calib.

8 Enter the pressure value for the lower calibration point

via the "Empty pressure" parameter, here "0 mbar" for
example.

Menu path: Setup → Extended setup → Level →
Empty pressure

9 Enter the volume value for the upper calibration point

via the "Full calib." parameter, here "1000 liter" (264
US gal) for example.

Menu path: Setup → Extended setup → Level →
Full calib.

10 Enter the pressure value for the upper calibration point

via the "Full pressure" parameter, here "400 mbar" (6
psi) for example.

Menu path: Setup → Extended setup → Level →
Full pressure

11 Result:

The measuring range is set for 0 to 1000 l (264 US gal).
0 l corresponds to an output current of 4 mA.
1000 l (264 US gal) corresponds to an output current of
20 mA.

5.6.5 Level selection "in height"
Calibration without reference pressure (dry calibration)

Example:

In this example, the volume in a tank should be measured in liters. The maximum volume of
1000 liters (264 US gal) corresponds to a level of 4 m. The minimum volume of 0 liters
corresponds to a height of 0 m. The density of the medium is 1 g/cm

Prerequisite:

• The measured variable is in direct proportion to the pressure.

• This is a theoretical calibration i.e. the pressure and volume values for the lower and upper
calibration point must be known.

!

Note!
The values entered for "Empty calib./Full calib." and " Set LRV/Set URV" must be at least 1%
apart. The value will be rejected, and a message output, if the values are too close together.
Other limit values are not checked, i.e. the values entered must be appropriate for the sensor
and the measuring task for the device to be able to measure correctly.

Calibration without reference pressure (dry calibration)

1 See Table, Step 7.
2 See Table, Step 8.
3 See Table, Step 9.
4 See Table, Step 10.

3

(1 SGU).

P01-FMX21xxx-05-xx-xx-xx-026

Endress+Hauser 31

Commissioning Deltabar M 4...20 mA HART

Description

1 Perform "position zero adjustment" → ä 24.

2 Select the "Level" measuring mode via the "Measuring

mode (005)" parameter (→ ä 23).

Menu path: Setup → Measuring mode

3 Select a pressure unit via the "Press eng. unit"

parameter (→ ä 24), here "mbar" for example.

Menu path: Setup → Press. eng. unit

4 Select the "In height" level mode via the "Level

selection" parameter.

Menu path: Setup → Extended setup → Level →
Level selection

5 Select a volume unit via the "Output unit" parameter,

here "l" for example.

Menu path: Setup → Extended setup → Level →
Output unit

6 Select a height unit via the "Height unit" parameter,

here "m" for example.

Menu path: Setup → Extended setup → Level →
Height unit

7 Select the "Wet" option via the "Calibration mode"

parameter.

Menu path: Setup → Extended setup → Level →
Calibration mode

32 Endress+Hauser

Deltabar M 4...20 mA HART Commissioning

4.08

0

h

[m]

0 400

p

[mbar]

h =

p

r · g

r = 1

g

cm

3

➀

1000

0

V
[l]

0.0 4.0

➁

➂

h =

p

r · g

h

[m]

➃

➄

Description

8 Enter the height value for the lower calibration point

via the "Empty height" parameter, here "0 m" for
example.

Menu path: Setup → Extended setup → Level →
Empty height

9 Enter the volume value for the upper calibration point

via the "Full calib." parameter, here "1000 liter" (264
US gal) for example.

Menu path: Setup → Extended setup → Level →
Full calib.

10 Enter the volume value for the lower calibration point

via the "Empty calib." parameter, here "0 liter" for
example.

Menu path: Setup → Extended setup → Level →
Empty calib.

11 Enter the height value for the upper calibration point

via the "Full height" parameter, here "4 m" (13 ft) for
example.

Menu path: Setup → Extended setup → Level →
Full height

12 Enter the density of the medium, using the "Adjust

density" parameter, here 1 g/cm

Menu path: Setup → Extended setup → Level →
Adjust density

13 Result:

The measuring range is set for 0 to 1000 l (264 US gal).
0 l corresponds to an output current of 4 mA.
1000 l (264 US gal) corresponds to an output current of
20 mA.

3

(1 SGU) for example.

P01-FMX21xxx-05-xx-xx-xx-029

P01-FMX21xxx-05-xx-xx-xx-032

Calibration without reference pressure (dry calibration)

1 See table, Step 12.
2 See table, Step 8.
3 See table, Step 9.
4 See table, Step 10.
5 See table, Step 11.

Endress+Hauser 33

Commissioning Deltabar M 4...20 mA HART

5.6.6 Level selection "in height"
Calibration with reference pressure (wet calibration)

Example:

In this example, the volume in a tank should be measured in liters. The maximum volume of
1000 liters (264 US gal) corresponds to a level of 4 m (13 ft). The minimum volume of 0 liters

3

corresponds to a height of 0 m. The density of the medium is 1 g/cm

(1 SGU).

Prerequisite:

• The measured variable is in direct proportion to the pressure.

• The tank can be filled and emptied.

!

Note!
The values entered for "Empty calib./Full calib." and" Set LRV/Set URV" must be at least 1%
apart. The value will be rejected, and a message output, if the values are too close together.
Other limit values are not checked, i.e. the values entered must be appropriate for the sensor
and the measuring task for the device to be able to measure correctly.

Description

1 Perform "position zero adjustment" → ä 24.

2 Select the "Level" measuring mode via the "Measuring

mode (005)" parameter (→ ä 23).

Menu path: Setup → Measuring mode

3 Select a pressure unit via the "Press eng. unit"

parameter (→ ä 24), here "mbar" for example.

Menu path: Setup → Press. eng. unit

4 Select the "In height" level mode via the "Level

selection" parameter.

Menu path: Setup → Extended setup → Level →
Level selection

5 Select a volume unit via the "Output unit" parameter,

here "l" for example.

Menu path: Setup → Extended setup → Level →
Output unit

6 Select a height unit via the "Height unit" parameter,

here "m" for example.

Menu path: Setup → Extended setup → Level →
Height unit

7 Select the "Wet" option via the "Calibration mode"

parameter.

Menu path: Setup → Extended setup → Level →
Calibration mode

34 Endress+Hauser

Deltabar M 4...20 mA HART Commissioning

4.08

0

h

[m]

0 400

p

[mbar]

h =

p

r · g

r = 1

g

cm

3

➀

1000

0

V
[l]

0 4.0

➁

➂

h =

p

r · g

h

[m]

Description

8 a. The hydrostatic pressure for the lower calibration

point is present at the device, here "0 mbar" for
example.

b. Select the "Empty calib." parameter.

c. Enter the volume value, here "0 l" for example.
Menu path: Setup → Extended setup → Level →

Empty calib.

9 a. The hydrostatic pressure for the upper calibration

point is present at the device, here "400 mbar" (6
psi) for example.

b. Select the "Full calib." parameter.

c. Enter the volume value, here "1000 l" (264 US

gal) for example.

Menu path: Setup → Extended setup → Level →
Full calib.

10 Enter the density of the medium, using the "Adjust

density" parameter, here 1 g/cm

3

(1 SGU) for example.

P01-FMX21xxx-05-xx-xx-xx-029

Menu path: Setup → Extended setup → Level →
Adjust density

11 If the process uses a medium other than the medium on

which the calibration was based, the new density must
be specified in the "Process density" parameter.

Menu path: Setup → Extended Setup → Level →
Density process

12 Result:

The measuring range is set for 0 to 1000 l (264 US gal).
0 l corresponds to an output current of 4 mA.
1000 l (264 US gal) corresponds to an output current of
20 mA.

P01-FMX21xxx-05-xx-xx-xx-030

Calibration with reference pressure (wet calibration)

1 See table, Step 10 .
2 See table, Step 8.
3 See table, Step 9.

Endress+Hauser 35

KA01027P/00/EN/14.12

71157157

71157157
CCS/FM+SGML 9