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

Endress+Hauser 3

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

4Endress+Hauser

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

Endress+Hauser 5

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

6Endress+Hauser

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

Endress+Hauser 7

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

- +

4…20 mA

Wiring Deltabar M 4...20 mA HART

8Endress+Hauser

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)

Deltabar M 4...20 mA HART Operation

Endress+Hauser 9

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

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

10 Endress+Hauser

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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