Endress+Hauser Deltabar S FMD77 Technische Daten

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Brief Operating Instructions

Deltabar S FMD77, FMD78,

PMD75

Differential pressure measurement

These Brief Operating Instructions are not a substitute for the

Operating Instructions pertaining to the device.

Detailed information about the device can be found in the

Operating Instructions and the additional documentation.

Available for all device versions via

• Internet: www.endress.com/deviceviewer

• Smartphone/tablet: Endress+Hauser Operations app

KA01018P/00/EN/19.21-00

71561638

2022-04-05

Associated documentation Deltabar S FMD77, FMD78, PMD75

2 Endress+Hauser

1 Associated documentation

Order code:

Ext. ord. cd.:

Ser. no.:

www.endress.com/deviceviewer Endress+Hauser

Operations App

XXXXXXXXXXXX

XXXXX-XXXXXX

XXX.XXXX.XX

Serial number

A0023555

2 About this document

2.1 Document function

The Brief Operating Instructions contain all the essential information from incoming

acceptance to initial commissioning.

Deltabar S FMD77, FMD78, PMD75 About this document

Endress+Hauser 3

2.2 Symbols used

2.2.1 Safety symbols

DANGER

This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in

serious or fatal injury.

WARNING

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in

serious or fatal injury.

CAUTION

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in

minor or medium injury.

NOTICE

This symbol contains information on procedures and other facts which do not result in

personal injury.

2.2.2 Electrical symbols

Protective earth (PE)

Ground terminals that must be connected to ground prior to establishing any other

connections.

The ground terminals are located on the interior and exterior of the device:

• Interior ground terminal: protective earth is connected to the mains supply.

• Exterior ground terminal: device is connected to the plant grounding system.

2.2.3 Symbols for certain types of information and graphics

Symbols for certain types of information and graphics

Permitted

Procedures, processes or actions that are permitted

Forbidden

Procedures, processes or actions that are forbidden

Tip

Indicates additional information

Reference to documentation

Reference to page

Visual inspection

Notice or individual step to be observed

Basic safety instructions Deltabar S FMD77, FMD78, PMD75

4 Endress+Hauser

1, 2, 3, ...

Item numbers

Series of steps

Result of a step

2.3 Registered trademarks

•KALREZ®

Trademark of E.I. Du Pont de Nemours & Co., Wilmington, USA

•TRI-CLAMP®

Trademark of Ladish & Co., Inc., Kenosha, USA

• HART®

Registered trademark of the FieldComm Group, Austin, USA

•GORE-TEX®

Trademark of W.L. Gore & Associates, Inc., USA

3 Basic safety instructions

3.1 Requirements for the personnel

Personnel must meet the following requirements for their tasks:

‣Trained, qualified specialists must be suitably qualified to perform this function and task

‣Are authorized by the plant owner/operator

‣Are familiar with federal/national regulations

‣Before starting work, read and understand the instructions in the manual and

supplementary documentation as well as the certificates (depending on the application)

‣Follow instructions and comply with basic conditions

3.2 Intended use

The Deltabar S is a differential pressure / pressure transmitter for measuring flow, level,

pressure or differential pressure.

3.2.1 Foreseeable incorrect use

The manufacturer is not liable for damage caused by improper or non-intended use.

Verification for borderline cases:

‣For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistance in

verifying the corrosion resistance of fluid-wetted materials, but does not accept any

warranty or liability.

Deltabar S FMD77, FMD78, PMD75 Basic safety instructions

Endress+Hauser 5

3.3 Workplace safety

When working on and with the device:

‣Wear the required personal protective equipment according to federal/national

regulations.

‣Switch off the supply voltage before connecting the device.

3.4 Operational safety

Risk of injury!

‣Operate the device only if it is in proper technical condition, free from errors and faults.

‣The operator is responsible for the interference-free operation of the device.

Modifications to the device

Unauthorized modifications to the device are not permitted and can lead to unforeseeable

dangers:

‣If, despite this, modifications are required, consult with Endress+Hauser.

Repair

To ensure continued operational safety and reliability:

‣Carry out repairs on the device only if they are expressly permitted.

‣Observe federal/national regulations pertaining to the repair of an electrical device.

‣Use original spare parts and accessories from Endress+Hauser only.

Hazardous area

To eliminate danger to persons or the installation when the device is used in the hazardous

area (e.g. explosion protection, pressure vessel safety):

‣Check the nameplate to verify whether the ordered device can be used for the intended

purpose in the hazardous area.

‣Observe the specifications in the separate supplementary documentation, which is an

integral part of this manual.

3.5 Product safety

This measuring device is designed in accordance with good engineering practice to meet state-

of-the-art safety requirements, has been tested, and left the factory in a condition in which it

is safe to operate.

It meets the general safety standards and legal requirements. It also complies with the EC

directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser confirms

this by affixing the CE mark to the device.

3.6 Functional safety SIL3 (optional)

The Functional Safety Manual must be strictly observed for devices that are used in functional

safety applications.

Incoming acceptance and product identification Deltabar S FMD77, FMD78, PMD75

6 Endress+Hauser

4 Incoming acceptance and product identification

4.1 Incoming acceptance

DELIVERY NOTE

1 = 2

A0016870

• Is the order code on the delivery note (1) identical to the order code on the product sticker

(2)?

• Are the goods undamaged?

• Do the data on the nameplate correspond to the order specifications and the delivery note?

• Is the documentation available?

• If required (see nameplate): are the Safety Instructions (XA) provided?

If one of these conditions is not fulfilled, please contact your Endress+Hauser sales office.

4.2 Storage and transport

4.2.1 Storage conditions

Use original packaging.

Store the measuring device in clean and dry conditions and protect from damage caused by

shocks (EN 837-2).

4.2.2 Transporting the product to the measuring point

LWARNING

Incorrect transport!

Housing and membrane may become damaged, and there is a risk of injury!

‣Transport the measuring device to the measuring point in its original packaging or by the

process connection.

‣Follow the safety instructions and transport conditions for devices weighing more than 18

kg (39.6 lbs).

Deltabar S FMD77, FMD78, PMD75 Mounting

Endress+Hauser 7

5 Mounting

NOTICE

Incorrect handling!

Damage to the device!

‣The removal of the screws with item number (1) is not permissible under any

circumstances and will void the warranty.

A0025336

5.1 Mounting requirements

5.1.1 Dimensions

For dimensions, please refer to the Technical Information for Deltabar S TI00382P,

"Mechanical construction" section.

5.2 Mounting the device

• Due to the orientation of the Deltabar S, a zero point shift may occur, i.e. when the vessel is

empty, the measured value does not display zero. You can correct this zero point shift either

directly on the device via the  button or via remote operation.

• 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 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.

• Lay the impulse piping with a monotonic gradient of at least 10 %.

• To ensure optimum readability of the local display, it is possible to rotate the housing by up

to 380°.

• Endress+Hauser offers a mounting bracket for installation on pipes or walls.

5.2.1 Installation for flow measurement

Flow measurement in gases with PMD75

Mount the Deltabar S above the measuring point so that the condensate can drain into the

process pipe.

Mounting Deltabar S FMD77, FMD78, PMD75

8 Endress+Hauser

Flow measurement in vapors with PMD75

• Mount the Deltabar S below the measuring point.

• Mount the condensate traps at the same level as the tapping points and at the same

distance to the Deltabar S.

• Prior to commissioning, fill the impulse piping to the height of the condensate traps.

Flow measurement in liquids with PMD75

• Mount the Deltabar S 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.

5.2.2 Installation for level measurement

Level measurement in an open vessel with PMD75

• Mount the Deltabar S below the lower measuring connection so that the impulse piping is

always filled with liquid.

• The negative side is open to atmospheric pressure.

• When measuring in media with solid parts, such as dirty liquids, installing separators and

drain valves is useful for capturing and removing sediment.

Level measurement in an open vessel with FMD77

• Mount the Deltabar S directly on the vessel.

• The negative side is open to atmospheric pressure.

Level measurement in a closed vessel with PMD75

• Mount the Deltabar S below the lower measuring connection so that the impulse piping is

always filled with liquid.

• Always connect the impulse piping on the negative side above the maximum level.

• When measuring in media with solid parts, such as dirty liquids, installing separators and

drain valves is useful for capturing and removing sediment.

Level measurement in a closed vessel with FMD77

• Mount the Deltabar S directly on the vessel.

• Always connect the impulse piping on the negative side above the maximum level.

• When measuring in media with solid parts, such as dirty liquids, installing separators and

drain valves is useful for capturing and removing sediment.

Level measurement in a closed vessel with FMD78

• Mount the Deltabar S below the lower diaphragm seal.

• The ambient temperature should be the same for both capillaries.

Level measurement is only guaranteed between the upper edge of the lower diaphragm seal

and the lower edge of the upper diaphragm seal.

Deltabar S FMD77, FMD78, PMD75 Mounting

Endress+Hauser 9

Level measurement in a closed vessel with superimposed steam with PMD75

• Mount the Deltabar S below the lower measuring connection so that the impulse piping is

always filled with liquid.

• Always connect the impulse piping on the negative side above the maximum level.

• The condensate trap ensures constant pressure on the negative side.

• When measuring in media with solid parts, such as dirty liquids, installing separators and

drain valves is useful for capturing and removing sediment.

Level measurement in a closed vessel with superimposed steam with FMD77

• Mount the Deltabar S directly on the vessel.

• Always connect the impulse piping on the negative side above the maximum level.

• The condensate trap ensures constant pressure on the negative side.

• When measuring in media with solid parts, such as dirty liquids, installing separators and

drain valves is useful for capturing and removing sediment.

5.2.3 Installation for pressure measurement (160 bar (2400 psi) and 250 bar (3750

psi) measuring cell)

The negative side is open to atmospheric pressure via the reference air filters screwed into the

LP side flange.

Mount the Deltabar S above the measuring point so that the condensate can drain into the

process pipe.

5.2.4 Installation for differential pressure measurement

Differential pressure measurement in gases and vapors with PMD75

Mount the Deltabar S above the measuring point so that the condensate can drain into the

process pipe.

Differential pressure measurement in liquids with PMD75

• Mount the Deltabar S 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.

Differential pressure measurement in gases, vapors and liquids with FMD78

• Mount diaphragm seals with capillaries on pipes at the top or side.

• For vacuum applications: mount the Deltabar S below the measuring point.

• The ambient temperature should be the same for both capillaries.

5.2.5 Installation instructions for devices with diaphragm seals (FMD78)

• Please note that the hydrostatic pressure of the liquid columns in the capillaries can cause

zero point shift. The zero point shift can be corrected.

• Do not clean or touch the process membrane of the diaphragm seal with hard or pointed

objects.

• Do not remove the protection on the process membrane until just before installation.

Mounting Deltabar S FMD77, FMD78, PMD75

10 Endress+Hauser

NOTICE

Incorrect handling!

Damage to the device!

‣A diaphragm seal and the pressure transmitter together form a closed, calibrated system

that has been filled through openings in the diaphragm seal and in the pressure

transmitter's measurement system. These openings are sealed and must not be opened!

‣If a mounting bracket is used, sufficient strain relief must be ensured for the capillaries in

order to prevent them from buckling (bending radius > 100 mm (3.94 in)).

‣Please observe the application limits of the diaphragm seal fill fluid as detailed in the

Technical Information for Deltabar S TI00382P, "Planning instructions for diaphragm seal

systems" section.

NOTICE

In order to obtain more precise measurement results and to avoid a defect in the device,

mount the capillaries as follows:

‣Mount capillaries vibration-free (in order to avoid additional pressure fluctuations).

‣Do not mount capillaries in the vicinity of heating or cooling lines.

‣Insulate capillaries if the ambient temperature is below or above the reference

temperature.

‣Mount capillaries with a bending radius > 100 mm (3.94 in)

‣Do not use capillaries as a carrying aid for the diaphragm seals!

‣In the case of two-sided diaphragm seal systems, the ambient temperature and the length

of both capillaries should be identical.

‣Two identical diaphragm seals (e.g. diameter, material etc.) should always be used for the

negative and positive side (standard delivery).

5.2.6 Seal for flange mounting

NOTICE

Incorrect measurement results.

The seal is not allowed to press against the process membrane as this could affect the

measurement result.

‣Ensure that the seal is not touching the process membrane.

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