Make sure the document is stored in a safe place such that it is always available when
working on or with the device.
To avoid danger to individuals or the facility, read the "Basic safety instructions" section
carefully, as well as all other safety instructions in the document that are specific to
working procedures.
The manufacturer reserves the right to modify technical data without prior notice. Your
Endress+Hauser distributor will supply you with current information and updates to
these Instructions.
Document informationCerabar M, Deltabar M, Deltapilot M
DANGER
WARNING
CAUTION
NOTICE
)
1Document information
1.1Document function
These Operating Instructions contain all the information that is required in various phases
of the life cycle of the device: from product identification, incoming acceptance and storage,
to mounting, connection, operation and commissioning through to troubleshooting,
maintenance and disposal.
1.2Symbols used
1.2.1Safety symbols
SymbolMeaning
DANGER!
A0011189-DE
A0011190-DE
A0011191-DE
A0011192-DE
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
seriousor fatal injury.
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
seriousor fatal injury.
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minoror medium injury.
NOTICE!
This symbol contains information on procedures and other facts which do not result in
personalinjury.
1.2.2Electrical symbols
Symbol MeaningSymbol Meaning
Direct currentAlternating current
Direct current and alternating currentGround connection
Protective ground connection
A terminal which must be connected
to ground prior to establishing any
other connections.
1.2.3Tool symbols
Symbol Meaning
Allen key
A0011221
Hexagon wrench
A grounded terminal which, as far as
the operator is concerned, is grounded
via a grounding system.
Equipotential connection
A connection that has to be connected
to the plant grounding system: This
may be a potential equalization line or
a star grounding system depending on
national or company codes of practice.
A0011222
4Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MDocument information
1.
2.
1.
2.
t 85°C>
1.2.4Symbols for certain types of information
Symbol Meaning
Permitted
Indicates procedures, processes or actions that are permitted.
A0011182
Forbidden
Indicates procedures, processes or actions that are forbidden.
A0011184
Tip
Indicates additional information.
A0011193
Reference to documentation
A0015482
Reference to page
A0015484
Reference to graphic
A0015487
, , ...Series of steps
Result of a sequence of actions
A0018343
Visual inspection
A0015502
1.2.5Symbols in graphics
Symbol Meaning
1, 2, 3, 4, ...Item numbers
, , ...Series of steps
A, B, C, D, ...Views
1.2.6Symbols at the device
SymbolMeaning
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions.
A0019159
Connecting cable immunity to temperature change
Indicates that the connecting cables have to withstand a temperature of 85°C at least.
1.2.7Registered trademarks
KALREZ®, VITON®, TEFLON
Registered label of E.I. Du Pont de Nemours & Co., Wilmington, USA
TRI-CLAMP
®
Registered label of Ladish & Co., Inc., Kenosha, USA
FOUNDATION
TM
Fieldbus
Registered trademark of the FieldComm Group, Austin, USA
GORE-TEX
®
Registered label of W.L. Gore & Associates, Inc., USA
®
Endress+Hauser5
Basic safety instructionsCerabar M, Deltabar M, Deltapilot M
2Basic safety instructions
2.1Requirements concerning the staff
The personnel for installation, commissioning, diagnostics and maintenance must fulfill the
following requirements:
• Trained, qualified specialists: must have a relevant qualification for this specific function
and task
• Are authorized by the plant owner/operator
• Are familiar with federal/national regulations
• Before beginning work, the specialist staff must have read and understood the instructions
in the Operating Instructions and supplementary documentation as well as in the
certificates (depending on the application)
• Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
• Being instructed and authorized according to the requirements of the task by the facility's
owner-operator
• Following the instructions in these Operating Instructions
2.2Designated use
The Cerabar M is a pressure transmitter for measuring level and pressure.
The Deltabar M is a differential pressure transmitter for measuring differential pressure,
flow and level.
The Deltapilot M is a hydrostatic pressure sensor for measuring level and pressure.
2.2.1Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated 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.
2.3Workplace safety
For work 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.
2.4Operational safety
Risk of injury!
‣ Operate the device in proper technical condition and fail-safe condition only.
‣ The operator is responsible for interference-free operation of the device.
‣ Only disassemble the device in pressurless condition!
Conversions 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,
6Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MBasic safety instructions
‣ Carry out repairs on the device only if they are expressly permitted.
‣ Observe federal/national regulations pertaining to repair of an electrical device.
‣ Use original spare parts and accessories from Endress+Hauser only.
2.5Hazardous area
To eliminate a danger for persons or for the facility when the device is used in the hazardous
area (e.g. explosion protection, pressure vessel safety):
• Based on the nameplate, check whether the ordered device is permitted for the intended
use in the hazardous area.
• Observe the specifications in the separate supplementary documentation that is an
integral part of these Instructions.
2.6Product 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 they are safe to operate. It fulfills general safety requirements and legal requirements.
It also conforms to the EC directives listed in the device-specific EC declaration of conformity.
Endress+Hauser confirms this fact by applying the CE mark.
Endress+Hauser7
IdentificationCerabar M, Deltabar M, Deltapilot M
3Identification
3.1Product 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).
3.2Device designation
3.2.1Nameplate
• The MWP (maximum working pressure) is specified on the nameplate. This value refers
to a reference temperature of 20°C (68°F) or 100°F (38 °C) for ANSI flanges.
• The pressure values permitted at higher temperatures can be found in the following
standards:
– EN 1092-1: 2001 Tab. 18
– ASME B 16.5a – 1998 Tab. 2-2.2 F316
– ASME B 16.5a – 1998 Tab. 2.3.8 N10276
– JIS B 2220
• The test pressure corresponds to the over pressure limit (OPL) of the device = MWP x 1.5
2)
.
• The Pressure Equipment Directive (EC Directive 97/23/EC) uses the abbreviation "PS". The
abbreviation "PS" corresponds to the MWP (maximum working pressure) of the measuring
device.
1)
1) With regard to their stability-temperature property, the materials 1.4435 and 1.4404 are grouped together
under 13EO in EN 1092-1 Tab. 18. The chemical composition of the two materials can be identical.
2) The equation does not apply for PMP51 and PMP55 with a 40 bar (600 psi) or a 100 bar (1500 psi) measuring
cell.
8Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MIdentification
ex works FW:
Dev.Rev.:
250002755-C
Ext. order code:
Ser. no.:
U=
Span
P
MWP
Order code:
Made in Germany, D-79689 Maulburg
Mat.:
250002756-E
L=
1
2
3
4
567
8910
11
12
13
14
15
16
17
18
18
Pmax
Tmax
for oxygen service
Bei Sauerstoffeinsatz/
1
2
3
Aluminum housing
A0030017
Fig. 1: Nameplate
1Device name
2Order code (for re-orders)
3Serial number (for identification)
4Extended order code (complete)
5MWP (maximum working pressure)
6Electronic version (output signal)
7Min./max. span
8Nominal measuring range
9Supply voltage
10 Unit of length
11 ID number of notified body with regard to ATEX (optional)
12 ID number of notified body with regard to Pressure Equipment Directive (optional)
13 Approvals
14 Device version
15 Software version
16 Degree of protection
17 Wetted materials
18 Approval-specific information
Devices suitable for oxygen applications are fitted with an additional nameplate.
Fig. 2: Additional nameplate for devices suitable for oxygen applications
1Maximum pressure for oxygen applications
2Maximum temperature for oxygen applications
3Layout identification of the nameplate
A0030019
Endress+Hauser9
IdentificationCerabar M, Deltabar M, Deltapilot M
002757-A
p
Order code:
Ext. order code:
Ser. no.:
MWP
D-79689 Maulburg
Made in Germany,
ex works FW
U=
Dev.Rev.:
L=
Span
Mat.:
002758-C
1
2
3
4
4
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
12
002759-B
1
1
Stainless steel housing, hygienic
A0030021
Fig. 3: Nameplate for Cerabar M and Deltapilot M
1Device name
2Order code (for re-orders)
3Serial number (for identification)
4Extended order code (complete)
5Nominal measuring range
6MWP (maximum working pressure)
7Length data
8Electronic version (output signal)
9Supply voltage
10 Min./max. span
11 Wetted materials
12 Approval-specific information
13 ID number of notified body with regard to ATEX (optional)
14 ID number of notified body with regard to Pressure Equipment Directive (optional)
15 Approvals
16 Software version
17 Device version
18 Degree of protection
Devices with certificates are fitted with an additional plate.
Fig. 4: Additional nameplate for devices with certificates
1Approval-specific information
3.2.2Identifying the sensor type
In the case of gauge pressure sensors, the "Pos. zero adjust" parameter appears in the
operating menu ("Setup" -> "Pos. zero adjust").
In the case of absolute pressure sensors, the "Calib. offset" parameter appears in the
operating menu ("Setup" -> "Calib. offset").
A0030024
10Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MIdentification
3.3Scope of delivery
The scope of delivery comprises:
• Device
• Optional accessories
Documentation supplied:
• The Operating Instructions BA00384P is available on the Internet.
See: www.endress.com Download
• Brief Operating Instructions: KA01032P Cerabar M / KA01029P Deltabar M / KA01035P
Deltapilot M
• Final inspection report
• Additional Safety Instructions for ATEX, IECEx and NEPSI devices
• Optional: factory calibration form, test certificates
3.4CE mark, Declaration of Conformity
The devices are designed to meet state-of-the-art safety requirements, have been tested and
left the factory in a condition in which they are safe to operate. The devices comply with the
applicable standards and regulations as listed in the EC Declaration of Conformity and thus
comply with the statutory requirements of the EC Directives. Endress+Hauser confirms the
conformity of the device by affixing to it the CE mark.
Endress+Hauser11
InstallationCerabar M, Deltabar M, Deltapilot M
WARNING
!
4Installation
4.1Incoming acceptance
• Check the packaging and the contents for damage.
• Check the shipment, make sure nothing is missing and that the scope of supply matches
your order.
4.2Storage and transport
4.2.1Storage
The device must be stored in a dry, clean area and protected against damage from impact
(EN 837-2).
Storage temperature range:
See Technical Information for Cerabar M TI00436P / Deltabar M TI00434P / Deltapilot M
TI00437P.
4.2.2Transport
Incorrect transportation
Housing, diaphragm and capillaries 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).
‣ Do not use capillaries as a carrying aid for the diaphragm seals.
4.3Installation conditions
4.3.1Dimensions
For dimensions, please refer to the Technical Information for Cerabar M TI00436P /
Deltabar M TI00434P / Deltapilot M TI00437P, "Mechanical construction" section.
12Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MInstallation
WARNING
!
WARNING
!
4.4General installation instructions
• Devices with a G 1 1/2 thread:
When screwing the device into the tank, the flat seal has to be positioned on the sealing
surface
of the process connection. To avoid additional strain on the process isolating diaphragm,
the thread should never be sealed with hemp or similar materials.
• Devices with NPT threads:
– Wrap Teflon tape around the thread to seal it.
– Tighten the device at the hexagonal bolt only. Do not turn at the housing.
– Do not overtighten the thread when screwing. Max. torque: 20 to 30 Nm (14.75 to
22.13 lbf ft)
4.4.1Mounting sensor modules with PVDF thread
Risk of damage to process connection!
Risk of injury!
‣ Sensor modules with PVDF process connections with threaded connection must be
installed with the mounting bracket provided!
Material fatigue from pressure and temperature!
Risk of injury if parts burst! The thread can become loose if exposed to high pressure and
temperatures.
‣ The integrity of the thread must be checked regularly and the thread may need to be re-
tightened with the maximum tightening torque of 7 Nm (5.16 lbf ft). Teflon tape is
recommended for sealing the ½" NPT thread.
Endress+Hauser13
InstallationCerabar M, Deltabar M, Deltapilot M
NOTICE
1
1
1
4.5Installing Cerabar M
• Due to the orientation of the Cerabar M, there may be a shift in the zero point, i.e. when
the container is empty or partially full, the measured value does not display zero. You can
correct this zero point shift ä 47, Section "Function of the operating elements" or
ä 73, Section 8.3 "Pos. zero adjust".
• For PMP55, please refer to Section 4.5.2 "Installation instructions for devices with
diaphragm seals – PMP55", ä 17.
• Endress+Hauser offers a mounting bracket for installing on pipes or walls.
ä 21, Section 4.5.5 "Wall and pipe mounting (optional)".
4.5.1Installation instructions for devices without diaphragm seals –
PMP51, PMC51
Damage to the device!
If a heated Cerabar M is cooled during the cleaning process (e.g. by cold water), a vacuum
develops for a short time, whereby moisture can penetrate the sensor through the pressure
compensation (1).
‣ If this is the case, mount the Cerabar M with the pressure compensation (1) pointing
downwards.
®
• Keep the pressure compensation and GORE-TEX
• Cerabar M transmitters without diaphragm seals are mounted as per the norms for a
manometer (DIN EN 837-2). We recommend the use of shutoff devices and siphons. The
orientation depends on the measuring application.
• Do not clean or touch process isolating diaphragms with hard or pointed objects.
• The device must be installed as follows in order to comply with the cleanability
requirements of the ASME-BPE (Part SD Cleanability):
filter (1) free from contamination.
14Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MInstallation
1
2
1
1
2
2
3
4
Pressure measurement in gases
A0028473
Fig. 5: Measuring arrangement for pressure measurement in gases
1Cerabar M
2Shutoff device
Mount the Cerabar M with the shutoff device above the tapping point so that any condensate
can flow into the process.
Pressure measurement in steams
Fig. 6: Measuring arrangement for pressure measurement in steams
1Cerabar M
2Shutoff device
3U-shaped siphon
4Circular siphon
A0028474
• Mount Cerabar M with siphon above the tapping point.
• Fill the siphon with liquid before commissioning.
The siphon reduces the temperature to almost the ambient temperature.
Endress+Hauser15
InstallationCerabar M, Deltabar M, Deltapilot M
1
2
3
Pressure measurement in liquids
A0028491
Fig. 7: Measuring arrangement for pressure measurement in liquids
1Cerabar M
2Shutoff device
• Mount Cerabar M with shutoff device below or at the same level as the tapping point.
Level measurement
A0028492
Fig. 8: Measuring arrangement for level
• Always install the Cerabar M below the lowest measuring point.
• Do not mount the device in the filling curtain or at a point in the tank which could be
affected by pressure pulses from an agitator.
• Do not mount the device in the suction area of a pump.
• The calibration and functional test can be carried out more easily if you mount the device
downstream of a shutoff device.
16Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MInstallation
NOTICE
NOTICE
4.5.2Installation instructions for devices with diaphragm seals –
PMP55
• Cerabar M devices with diaphragm seals are screwed in, flanged or clamped, depending on
the type of diaphragm seal.
• 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 isolating diaphragm of the diaphragm seal with hard or
pointed objects.
• Do not remove process isolating diaphragm protection until shortly before installation.
Improper handling!
Damage to the device!
‣ A diaphragm seal and the pressure transmitter together form a closed, oil-filled
calibrated system. The fill fluid hole is sealed and may not be opened.
‣ 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
(3.94 in)).
‣ Please observe the application limits of the diaphragm seal filling oil as detailed in the
Technical Information for Cerabar M TI00436P, "Planning instructions for diaphragm
seal systems" section.
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 or above the reference temperature
‣ With a bending radius of 100 mm (3.94 in).
‣ Do not use the capillaries as a carrying aid for the diaphragm seals!
Endress+Hauser17
InstallationCerabar M, Deltabar M, Deltapilot M
H1
1
2
3
4
5
A
B
0.0
2.0
4.0
6.0
8.0
10.0
12.0
50 100300 400500 600 700800900 1000200
[mbar
abs
]
[m]
Vacuum application
For applications under vacuum, Endress+Hauser recommends mounting the pressure
transmitter below the diaphragm seal. This prevents vacuum loading of the diaphragm seal
caused by the presence of fill fluid in the capillary.
When the pressure transmitter is mounted above the diaphragm seal, the maximum height
difference H1 in accordance with the illustrations below must not be exceeded.
A0023994
Fig. 9: Installation above the lower diaphragm seal
The maximum height difference depends on the density of the filling oil and the smallest
ever pressure that is permitted to occur at the diaphragm seal (empty vessel), see illustration
below:
Fig. 10: Diagram of maximum installation height above the lower diaphragm seal for vacuum applications depending on the
AHeight difference H1
BPressure at diaphragm seal
1Low temperature oil
2Vegetable oil
3Silicone oil
4High-temperature oil
5Inert oil
pressure at the diaphragm seal on the positive side
18Endress+Hauser
A0023986-en
Cerabar M, Deltabar M, Deltapilot MInstallation
T
p
T
a
+212
+176+140+104+68+32-4-40-76
+400
+350
+300
+250
+200
+150
+100
+50
0
-50
-100
+752
+662
+572
+482
+392
+302
+212
+122
+32
-58
-148
[°C]
[°F]
[°C][°F]
+100+80+60+40+20
0
-20-40-60
A
B
1
2
A
DE FG
C
B
Mounting with temperature isolator
Endress+Hauser recommends the use of temperature isolators in the event of constant
extreme medium temperatures which lead to the maximum permissible electronics
temperature of +85 °C (+185°F) being exceeded.
Depending on the filling oil used, diaphragm seal systems with temperature isolators can be
used for maximum temperatures of up to 400 °C (+752 °F). For the temperature
application limits, see technical Information, "Diaphragm seal filling oils" section.
To minimize the influence of rising heat, Endress+Hauser recommends the device be
mounted horizontally or with the housing pointing downwards. The additional installation
height also brings about a maximum zero point shift of 21 mbar (0.315 psi) due to the
hydrostatic column in the temperature isolator. You can correct this zero point shift at the
device.
The temperature restrictions are lowest with an insulation height of 30 mm (1.18 inch).
Full insulation exhibits virtually the same behavior as no insulation!
The temperature limits with an insulation height of 30 mm (1.18 inch) are illustrated in the
following graphic.
Fig. 11:
AAmbient temperature:
BProcess temperature: max. 400 °C (752 °F), depending on the filling oil used
CDevice with temperature isolator, material 316L (1.4404)
DWithout isolation
EMaximum isolation
F30 mm (1.18. inch) isolation
GWithout isolation, maximum isolation, 30 mm (1.18. inch) isolation
1Isolation heigth 30 mm (1.18. inch)
2Isolation material
85 °C (185 °F)
Endress+Hauser19
A0031354
InstallationCerabar M, Deltabar M, Deltapilot M
NOTICE
12
A
B
12
4.5.3Seal for flange mounting
Corrupted measurement results.
The seal is not allowed to press against the process isolating diaphragm as this could affect
the measurement result.
‣ Ensure that the seal is not touching the process isolating diaphragm.
A0017743
Fig. 12:
1Process isolating diaphragm
2Seal
4.5.4Thermal insulation – PMP55
The PMP55 may only be insulated up to a certain height. The maximum permitted
insulation height is indicated on the devices and applies to an insulation material with a heat
conductivity 0.04 W/(m x K) and to the maximum permitted ambient and process
temperature. The data were determined under the most critical application "quiescent air".
A0020474
Fig. 13: Maximum permitted insulation height, here indicated on a PMP55 with a flange
AAmbient temperature:
BProcess temperature: max. 400 °C (752°F), depending on the diaphragm seal filling oil used
1Maximum permitted insulation height
2Insulation material
70 °C (158°F)
20Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MInstallation
122 (4.8)
52 (2.05)
86 (3.39)
70 (2.76)
140 (5.51)
158 (6.22)
175 (6.89)
ø6 (0.24)
ø42...60 (1.65...2.36)
4.5.5Wall and pipe mounting (optional)
Endress+Hauser offers a mounting bracket for installation on pipes or walls (for pipe
diameters from 1 ¼" to 2").
A0028493
Engineering unit mm (in)
Please note the following when mounting:
• Devices with capillary tubes: mount capillaries with a bending radius 100 mm (3.94 in).
• When mounting on a pipe, tighten the nuts on the bracket uniformly with a torque of at
least 5 Nm (3.69 lbs ft).
Endress+Hauser21
InstallationCerabar M, Deltabar M, Deltapilot M
r ³120 (4.72)
2
3
4
5
6
1
7
7
4.5.6Assembling and mounting the "separate housing" version
Fig. 14: "Separate housing" version
1In the case of the "separate housing" version, the sensor is delivered with the process connection and cable ready mounted.
2Cable with connection jack
3Pressure compensation
4Connector
5Locking screw
6Housing mounted with housing adapter, included
7Mounting bracket provided, suitable for pipe and wall mounting (for pipe diameters from 1 ¼" up to 2")
Engineering unit mm (in)
Assembly and mounting
1.Insert the connector (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 (3.69 lbs ft).
Mount the cable with a bending radius (r) 120 mm (4.72 in).
Routing the cable (e.g. through a pipe)
You require the cable shortening kit.
Order number: 71093286
For details on mounting, see SD00553P/00/A6.
A0028494
22Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MInstallation
A1
ø7.95 (0.31)
ø2.5 (0.1)
5 (0.2)
12 3
s1 a0.8
4.5.7PMP51, version prepared for diaphragm seal mount –
welding recommendation
A0028495
Fig. 15: Version XSJ: prepared for diaphragm seal mount
1Hole for fill fluid
2Bearing
3Setscrew
A1See the "Welding recommendation" table below
Engineering unit mm (in)
Consecutive seam
no.
A1
for sensors
40 bar (600 psi)
Endress+Hauser recommends welding on the diaphragm seal as follows for the "XSJ prepared for diaphragm seal mount" version in feature 110 "Process connection" in the order
code up to, and including, 40 bar (600 psi) sensors: the total welding depth of the fillet weld
is 1 mm (0.04 in) with an outer diameter of 16 mm (0.63 in). Welding is performed
according to the WIG method.
Sketch/welding groove shape,
dimension as per DIN 8551
Information on filling
The diaphragm seal must be filled as soon as it has been welded on.
• After welded into the process connection, the sensor asse mbly must be p rop erl y fil led wit h
a filling oil and sealed gas-tight with a sealing ball and lock screw.
Once the diaphragm seal has been filled, at the zero point the device display should not
exceed 10% of the full scale value of the cell measuring range. The internal pressure of the
diaphragm seal must be corrected accordingly.
• Adjustment / calibration:
– The device is operational once it has been fully assembled.
– Perform a reset. The device must then be calibrated to the process measuring range as
described in the Operating Instructions.
Base material matchingWelding method
Adapter made of AISI 316L
(1.4435) to be welded to
diaphragm seal made of
AISI 316L (1.4435 or 1.4404)
A0024811
DIN EN ISO 24063
141PBInert gas
Welding
position
Inert gas,
additives
Ar/H 95/5
Additive:
ER 316L Si
(1.4430)
Endress+Hauser23
InstallationCerabar M, Deltabar M, Deltapilot M
NOTICE
1
4.6Installing Deltabar M
Incorrect handling!
Damage of the device!
‣ Disassembly of the screws with item number (1) is not permissible under any
circumstances and will result in loss of warranty.
4.6.1Installation position
• 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 47, "Function of the operating
elements")
– via the operating menu ( ä 73, "Pos. zero adjust")
• 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 ( ä 29, "Wall
and pipe-mounting (option)").
Installation position for flow measurement
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
24Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MInstallation
+
–
3
4
2
1
+
–
1
4
5
3
2
7
6
Flow measurement in gases
A0029783
Measuring layout for flow measurement in gases
1Orifice plate or pitot tube
2Shut-off valves
3Deltabar M
4Three-valve manifold
• 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
Measuring layout for flow measurement in steam
1Orifice plate or pitot tube
2Condensate traps
3Shut-off valves
4Deltabar M
5Three-valve manifold
6Separator
7Drain valves
A0029784
• 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.
Endress+Hauser25
InstallationCerabar M, Deltabar M, Deltapilot M
+
–
1
3
4
2
6
5
–
+
min.
p
atm
5
4
p
atm
2
3
1
Flow measurement in liquids
A0029785
Measuring layout for flow measurement in liquids
1Orifice plate or pitot tube
2Shut-off valves
3Deltabar M
4Three-valve manifold
5Separator
6Drain valves
• 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.
Installation position for level measurement
Level measurement in an open container
A0029787
Measuring layout for level measurement in open containers
1The low-pressure side is open to atmospheric pressure
2Deltabar M
3Three-valve manifold
4Separator
5Drain valve
• Mount the Deltabar M below the lower measuring connection so that the impulse piping
is always filled with liquid.
• The low-pressure 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.
26Endress+Hauser
Cerabar M, Deltabar M, Deltapilot MInstallation
–
+
min.
5
4
2
1
3
–
max.
–
+
min.
5
6
3
4
–
max.
2
1
Level measurement in a closed container
A0029790
Measuring layout for level measurement in a closed container
1Shut-off valves
2Deltabar M
3Three-valve manifold
4Separator
5Drain valves
• Mount the Deltabar M below the lower measuring connection so that the impulse piping
is always filled with liquid.
• Always connect the low-pressure 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 container with superimposed steam
A0029791
Measuring layout for level measurement in a 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 side above the maximum level.
• A condensate trap ensures constant pressure on the low-pressure side.
Endress+Hauser27
InstallationCerabar M, Deltabar M, Deltapilot M
+
1
2
3
4
1
5
6
3
4
+
2
• When measuring in media with solid parts, such as dirty liquids, installing separators and
drain valves is useful for capturing and removing sediment.
Installation position for differential pressure measurement
Differential pressure measurement in gases and steam
A0029792
Measuring layout for differential pressure measurement in gases and steam
1Deltabar M
2Three-valve manifold
3Shut-off valves
4e.g. filter
• 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
A0029798
Measuring layout for 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
28Endress+Hauser
drain valves is useful for capturing and removing sediment.
Cerabar M, Deltabar M, Deltapilot MInstallation
4.6.2Wall and pipe-mounting (option)
Endress+Hauser offers the following mounting brackets for installing the device on pipes or
walls:
Standard designHeavy duty design
A0031326A0031327
When using a valve block, the block's dimensions must be taken into account.
Bracket for wall and pipe mounting including retaining bracket for pipe mounting and two
nuts.
material of the screws used to secure the device depend on the order code.
Technical data (e.g. dimensions or order numbers for screws) see accessory document
SD01553P/00/EN.
Please note the following when mounting:
• To prevent the mounting screws from scoring, lubricate them with a multi-purpose grease
prior to mounting.
• In the case of pipe mounting, the nuts on the bracket must be tightened uniformly with a
torque of at least 30 Nm (22.13 lbf ft).
• For installation purposes, only use the screws with item number (2) (see the following
diagram).
Endress+Hauser29
InstallationCerabar M, Deltabar M, Deltapilot M
NOTICE
1
1
2
2
2
1
Incorrect handling!
Damage of the device!
‣ Disassembly of the screws with item number (1) is not permissible under any
circumstances and will result in loss of warranty.
A0024167.eps
30Endress+Hauser
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