Endress+Hauser Deltabar S PMD70 User manual

KA01024P/00/EN/15.14
71254469
Brief Operating Instructions
Deltabar S
PMD70, PMD75, FMD76, FMD77, FMD78
Differential pressure measurement
These Instructions are Brief Operating Instructions; they do not replace the
Operating Instructions included in the scope of supply.
For detailed information, refer to the Operating Instructions and other
documentation on the CD-ROM provided or visit
"www.endress.com/deviceviewer".

Table of contents Deltabar S FOUNDATION Fieldbus
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Safety icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1 General installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2 Measuring arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.3 Installation instructions for devices with diaphragm seals (FMD78) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Assembling and mounting the "separate housing" version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Connecting the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 Connecting the measuring unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1 Onsite display (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Onsite operation via onsite display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4 Locking/unlocking operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1 Commissioning via an FF configuration program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Selecting the language and measuring mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.3 Position adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.4 Flow measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.5 Level measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.6 Differential pressure measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.7 Scaling the OUT parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Deltabar S FOUNDATION Fieldbus Safety instructions
Endress+Hauser 3
1 Safety instructions
1.1 Designated use
The Deltabar S 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 configuration, 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.
1.4 Return
Follow the instructions on returning the device as outlined in the Operating Instructions on the
CD-ROM provided.

Product identification Deltabar S FOUNDATION Fieldbus
4Endress+Hauser
1.5 Safety icons
2 Product identification
The following options are available for identification of the measuring device:
• Nameplate specifications
• Order code with breakdown of the device features on the delivery note
• Enter serial numbers from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): All information about the measuring device is displayed.
For an overview of the technical documentation provided, enter the serial number from the
nameplates in the W@M Device Viewer (www.endress.com/deviceviewer).
3 Installation
3.1 General installation instructions
#Warning!
The seal is not allowed to press on the process isolating diaphragm as this could affect the
measurement result.
!Note!
• Due to the orientation of the Deltabar S, there may be a shift in the measured value, i.e. when
the container is empty, the measured value does not display zero. You can correct this zero
point shift either via the "zero" key on the electronic insert, or on the outside of the device or
via the onsite display. See Page 15, Section 5.2.1 "Position of operating elements", Page 16,
Section 5.2.2 "Function of the operating elements – onsite display not connected" and Page
25, Section 6.3 "Position adjustment".
• For FMD77 and FMD78, please refer to Section 3.3 "Installation instructions for devices with
diaphragm seals (FMD78)", Page 7.
• The FMD77 must only be insulated up to a certain height.
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 S FOUNDATION Fieldbus Installation
Endress+Hauser 5
• 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.
• Do not clean or touch diaphragm seals with hard or pointed objects.
• Install the impulse piping with a monotonic gradient of at least 10%.
• To ensure optimal readability of the onsite display, it is possible to rotate the housing up to
380°.
• Endress+Hauser offers a mounting bracket for installing on pipes or walls.
3.2 Measuring arrangement
3.2.1 Pressure measurement
• The PMD70, PMD75 and FMD78 are best suited for differential pressure measurement.
• Measuring arrangement for gases: Mount device above the measuring point.
• Measuring arrangement for liquids and steams: Mount device below tapping point.
• For differential pressure measurement in vapor, mount the condensate traps at the same level
as the same the tapping point and at the same distance from Deltabar S.
3.2.2 Level measurement
• All Deltabar S devices are best suited for level measurement in closed tanks.
• PMD70, PMD75, FMD76 and FMD77 are suitable to level measurement in open tanks.
Measuring arrangement level measurement in closed tanks and closed tanks with
superimposed vapor
• PMD70, PMD75: Mount device below the lower measuring connection. Always connect the
negative side above the maximum level via an impulse piping.
• FMD76, FMD77: Mount device direct on the tank. Always connect the negative side above
the maximum level via an impulse piping.
• FMD78 ä7, Section 3.3 and Section 3.4.
• In the case of level measurement in closed tanks with superimposed vapor, a condensate trap
ensures pressure which remains constant on the minus side.
Measuring arrangement level measurement in open tanks
• PMD70, PMD75: Mount device below the lower measuring connection. The negative side is
open to atmosphere pressure.
• FMD76, FMD77: Mount device direct on the tank. The negative side is open to atmosphere
pressure.
3.2.3 Flow measurement
• The PMD70 and PMD75 are best suited for flow measurement.
• Measuring arrangement for gases: Mount device above the measuring point.

Installation Deltabar S FOUNDATION Fieldbus
6Endress+Hauser
• Measuring arrangement for liquids and steams: Mount device below tapping point.
• For flow measurement in vapors, mount the condensate traps at the same level as the same
the tapping point and at the same distance from Deltabar S.

Deltabar S FOUNDATION Fieldbus Installation
Endress+Hauser 7
3.3 Installation instructions for devices with diaphragm seals
(FMD78)
!Note!
• The diaphragm seal, together with the pressure transmitter, forms a closed, calibrated system,
which is filled through openings in the diaphragm seal and in the measurement system of the
pressure transmitter. These openings are sealed and must not be opened.
• Do not remove the protection of the process isolating diaphragm until shortly before
installation.
• When using a mounting bracket, sufficient strain relief must be ensured for the capillaries in
order to prevent the capillary bending down (bending radius 100 mm).
• Please note that the hydrostatic pressure of the liquid columns in the capillaries can cause zero
point shift. You can correct this zero point shift either via the "zero" key on the electronic
insert, or on the outside of the device or via the onsite display. See Page 15, Section 5.2.1
"Position of operating elements", Page 16, Section 5.2.2 "Function of the operating elements
– onsite display not connected" and Page 25, Section 6.3 "Position adjustment".
• Please note the application limits of the diaphragm seal filling oil as detailed in the Technical
Information for Deltabar S TI00382P, Section "Planning instructions for diaphragm seal
systems" or at "www.endress.com/applicator".
In order to obtain more precise measurement results and to avoid a defect in the device, mount
the capillaries as follows:
• vibration-free (in order to avoid additional pressure fluctuations)
• not in the vicinity of heating or cooling lines
• insulate if the ambient temperature is below ore above the reference temperature
• with a bending radius of 100 mm.
• The ambient temperature and length of both capillaries should be the same when using
two-sided diaphragm seal systems.
• Two diaphragm seals which are the same (e.g. with regard to diameter, material, etc.) should
always be used for the negative and positive side (standard delivery).

Installation Deltabar S FOUNDATION Fieldbus
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P01-FMD78xxx-11-xx-xx-xx-005
Fig. 1: Mounting Deltabar S, FMD78 with diaphragm seals and capillary, recommended mounting for vacuum
applications: mount pressure transmitter below the lowest diaphragm seal!
3.3.1 Vacuum application (FMD78)
For applications under vacuum, Endress+Hauser recommends mounting the pressure
transmitter underneath the lower diaphragm seal. A vacuum load of the diaphragm seal caused
by the presence of filling oil in the capillaries is hereby prevented.
When the pressure transmitter is mounted above the lower diaphragm seal, the maximum
height difference H1 in accordance with the illustration below on the left must not be exceeded.
The maximum height difference is dependent on the density of the filling oil and the smallest
ever pressure that is permitted to occur at the diaphragm seal on the positive side (empty
container), see illustration below, on the right.
+ –
+
–
≥100 mm
P01-FMD7xxxx-11-xx-xx-xx-001
Fig. 2: Installation above the lower diaphragm
seal
P01-FMD78xxx-05-xx-xx-xx-016
Fig. 3: Diagram of maximum installation height above the lower
diaphragm seal for vacuum applications dependent on the
pressure at the diaphragm seal on the positive side
+ –
+
–
H1
–+
0.0
2.0
4.0
6.0
8.0
10.0
12.0
50 100 300 400 500 600 700 800 900 1000
200
Inert oil
High temperature
oil
Vegetable oil
Silicone oil
Pressure, diaphragm seal positive side [mbarabs]
Height difference H1[m]
Low temperature oil

Deltabar S FOUNDATION Fieldbus Installation
Endress+Hauser 9
3.4 Assembling and mounting the "separate housing" version
P01-xMD7xxxx-11-xx-xx-xx-011
Fig. 4: "Separate housing" version
1 In the "separate housing" version, the sensor is supplied with process connection and cable fitted.
2 Cable with connection jack
4Plug
5Lockingscrew
6 Housing fitted with housing adapter, included
7 Mounting bracket suitable for wall and pipe mounting, included
Assembly and mounting
1. Connect plug (item 4) into the corresponding connection jack of the cable (item 2).
2. Plug the cable into the housing adapter (item 6).
3. Tighten the locking screw (item 5).
4. Mount the housing on a wall or pipe using the mounting bracket (item 7).
When mounting on a pipe, tighten the nuts on the bracket uniformly with a torque of at
least 5 Nm.
Mount the cable with a bending radius (r) 120 mm.
r³120 mm
1
2
4
5
6
7

Wiring Deltabar S FOUNDATION Fieldbus
10 Endress+Hauser
4 Wiring
#Warning!
• If the operating voltage is > 35 VDC: Dangerous contact voltage at terminals.
Risk of electric shock!
In a wet environment, do not open the cover if voltage is present.
• Risk of electric shock and/or explosion! Switch off the supply voltage before connecting the
device.
• 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.
4.1 Connecting the device
!Note!
• Devices with integrated overvoltage protection must be grounded.
• Protective circuits against reverse polarity, HF influences and overvoltage peaks are installed.
• The supply voltage must match the supply voltage on the nameplate.
• Switch off the supply voltage before connecting the device.
• Remove housing cover of the terminal compartment.
• Guide cable through the gland. Preferably use twisted, shielded two-wire cable.
• Connect device in accordance with the following diagram.
• Screw down housing cover.
• Switch on supply voltage.