Endress+Hauser Deltabar S FMD77 Specifiche tecniche
Products Solutions Services
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
1.
3.
2.
A0023555
2 About this document
2.1 Document function
The Brief Operating Instructions contain all the essential information from incoming
acceptance to initial commissioning.
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
A
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
1.
,
2.
,
3.
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.
1
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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