Endress+Hauser dosimass User manual

Products Solutions Services
Operating Instructions
Dosimass
Coriolis flowmeter
BA00097D/06/EN/15.14
71235479
Valid as of version
03.00.zz (Device firmware)

Dosimass
2 Endress+Hauser
• 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 Sales Center will supply you with current information and updates to
these Instructions.

Dosimass Table of contents
Endress+Hauser 3
Table of contents
1 Document information .............. 5
1.1 Document function ..................... 5
1.2 Symbols used .......................... 5
1.2.1 Safety symbols .................. 5
1.2.2 Electrical symbols ................ 5
1.2.3 Symbols for certain types of
information .................... 6
1.2.4 Symbols in graphics ............... 6
1.3 Documentation ........................ 6
1.3.1 Standard documentation ........... 7
1.3.2 Supplementary device-dependent
documentation .................. 7
1.4 Registered trademarks ................... 7
2 Basic safety instructions ............ 8
2.1 Requirements for the personnel ............ 8
2.2 Designated use ........................ 8
2.3 Workplace safety ....................... 9
2.4 Operational safety ...................... 9
2.5 Product safety ......................... 9
2.6 IT security ............................ 9
3 Incoming acceptance and product
identification ..................... 11
3.1 Incoming acceptance ................... 11
3.2 Product identification ................... 11
3.2.1 Sensor nameplate ............... 12
3.2.2 Symbols on measuring device ...... 13
4 Storage and transport ............. 14
4.1 Storage conditions ..................... 14
4.2 Transporting the product ................ 14
4.2.1 Measuring devices without lifting
lugs ......................... 14
4.2.2 Measuring devices with lifting lugs .. 15
4.2.3 Transporting with a fork lift ........ 15
4.3 Packaging disposal ..................... 15
5 Installation ....................... 16
5.1 Installation conditions .................. 16
5.1.1 Mounting position ............... 16
5.1.2 Requirements from environment and
process ....................... 18
5.1.3 Special mounting instructions ...... 20
5.2 Mounting the measuring device ........... 20
5.2.1 Required tools .................. 20
5.2.2 Preparing the measuring device ..... 20
5.2.3 Mounting the measuring device ..... 20
5.3 Post-installation check .................. 21
6 Electrical connection .............. 22
6.1 Connection conditions .................. 22
6.2 Connecting the measuring device .......... 22
6.2.1 Pin and socket assignment ......... 23
6.2.2 Electrical connection ............. 23
6.2.3 Cable specifications .............. 25
6.2.4 Potential equalization ............ 25
6.3 Ensuring the degree of protection .......... 25
6.4 Post-connection check .................. 25
7 Operation options ................. 26
7.1 Overview of operation options ............ 26
7.1.1 Configuration .................. 26
8 Commissioning .................... 27
8.1 Function check ....................... 27
8.2 Switching on the measuring device ......... 27
8.2.1 Zero point adjustment ............ 27
8.3 Configuring the measuring device .......... 28
8.3.1 Defining the tag name ............ 29
8.3.2 Setting the system units .......... 29
8.3.3 Configuring the pulse/frequency/
switch output (option 3) .......... 30
8.3.4 Low flow cut off ................ 32
8.3.5 Partially filled pipe detection ....... 33
8.4 Advanced settings ..................... 34
8.4.1 Enter access code ............... 34
8.4.2 Sensor adjustment ............... 34
8.4.3 Configuring the totalizer .......... 35
8.4.4 Resetting the measuring device ..... 36
8.5 Simulation ........................... 36
9 Operation ......................... 38
9.1 Operation ........................... 38
9.1.1 Operating software access
authorization .................. 38
9.1.2 Reading the device locking status .... 38
9.2 Totalizer operation .................... 39
9.2.1 Control totalizer ................ 39
10 Diagnostics and troubleshooting ... 40
10.1 General troubleshooting ................. 40
10.1.1 For access ..................... 40
10.2 Diagnostics information in DeviceCare and
FieldCare ............................ 40
10.2.1 Diagnostic options ............... 40
10.2.2 Calling up remedy information ...... 41
10.3 Adapting the diagnostic information ....... 41
10.3.1 Adapting the diagnostic behavior .... 41
10.4 Overview of diagnostic information ........ 41
10.4.1 Process errors without message ..... 43
10.4.2 Response of outputs to errors ....... 44
10.4.3 Software history ................ 44

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10.5 Pending diagnostic events ............... 44
10.6 Diagnostic list ........................ 45
10.7 Event logbook ........................ 45
10.7.1 Event history ................... 45
10.7.2 Filtering the event logbook ........ 45
10.7.3 Overview of information events ..... 46
10.8 Resetting the measuring device ........... 46
10.8.1 Function scope of "Device reset"
parameter ..................... 46
10.9 Device information .................... 47
10.10 Firmware history ...................... 48
11 Maintenance ...................... 49
11.1 Maintenance tasks ..................... 49
11.1.1 Exterior cleaning ................ 49
11.1.2 Interior cleaning ................ 49
11.1.3 Replacing seals ................. 49
11.2 Measuring and test equipment ............ 49
11.3 Endress+Hauser services ................ 49
12 Repair ............................ 50
12.1 General notes ........................ 50
12.2 Spare parts .......................... 50
12.3 Endress+Hauser services ................ 50
12.4 Return .............................. 50
12.5 Disposal ............................ 50
12.5.1 Removing the measuring device ..... 50
12.5.2 Disposing of the measuring device ... 51
13 Accessories ....................... 52
13.1 Device-specific accessories ............... 52
13.1.1 For the sensor .................. 52
13.2 Communication-specific accessories ........ 52
13.3 Service-specific accessories ............... 52
14 Technical data .................... 54
14.1 Application .......................... 54
14.2 Function and system design .............. 54
14.3 Input ............................... 54
14.4 Output ............................. 55
14.5 Power supply ......................... 56
14.6 Performance characteristics .............. 57
14.7 Installation .......................... 59
14.8 Environment ......................... 59
14.9 Process ............................. 59
14.10 Mechanical construction ................ 61
14.11 Operability .......................... 62
14.12 Certificates and approvals ............... 62
14.13 Accessories .......................... 63
14.14 Supplementary documentation ............ 63
15 Appendix ......................... 65
15.1 Overview of the operating menu ........... 65
15.1.1 "Operation" menu ................ 65
15.1.2 "Setup" menu ................... 66
15.1.3 "Diagnostics" menu ............... 69
15.1.4 "Expert" menu .................. 71
Index .................................. 89

Dosimass Document information
Endress+Hauser 5
1 Document information
1.1 Document 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.
1.2 Symbols used
1.2.1 Safety symbols
Symbol Meaning
DANGER
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
NOTE!
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.2.2 Electrical symbols
Symbol Meaning
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
Alternating current
A terminal to which alternating voltage is applied or through which alternating current flows.
Direct current and alternating current
• A terminal to which alternating voltage or DC voltage is applied.
• A terminal through which alternating current or direct current flows.
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding
system.
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
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.

Document information Dosimass
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1.2.3 Symbols for certain types of information
Symbol Meaning
Permitted
Indicates procedures, processes or actions that are permitted.
Preferred
Indicates procedures, processes or actions that are preferred.
Forbidden
Indicates procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
Refers to the corresponding device documentation.
Reference to page
Refers to the corresponding page number.
Reference to graphic
Refers to the corresponding graphic number and page number.
,… ,
Series of steps
Result of a sequence of actions
Help in the event of a problem
Visual inspection
1.2.4 Symbols in graphics
Symbol Meaning
1, 2, 3,... Item numbers
,… ,
Series of steps
A, B, C, ... Views
A-A, B-B, C-C, ... Sections
A0013441
Flow direction
-
A0011187
Hazardous area
Indicates a hazardous area.
.
A0011188
Safe area (non-hazardous area)
Indicates the non-hazardous area.
1.3 Documentation
For an overview of the scope of the associated Technical Documentation, refer to the
following:
• The CD-ROM provided for the device (depending on the device version, the CD-ROM
might not be part of the delivery!)
• The W@M Device Viewer : Enter the serial number from the nameplate
(www.endress.com/deviceviewer)
• The Endress+Hauser Operations App: Enter the serial number from the nameplate
or scan the 2-D matrix code (QR code) on the nameplate.
For a detailed list of the individual documents along with the documentation code

Dosimass Document information
Endress+Hauser 7
1.3.1 Standard documentation
Document type Purpose and content of the document
Technical Information Planning aid for your device
The document contains all the technical data on the device and provides
an overview of the accessories and other products that can be ordered for
the device.
Brief Operating Instructions Guide that takes you quickly to the 1st measured value
The Brief Operating Instructions contain all the essential information
from incoming acceptance to initial commissioning.
1.3.2 Supplementary device-dependent documentation
Additional documents are supplied depending on the device version ordered: Always
comply strictly with the instructions in the supplementary documentation. The
supplementary documentation is an integral part of the device documentation.
1.4 Registered trademarks
Modbus®
Registered trademark of SCHNEIDER AUTOMATION, INC.
Microsoft®
Registered trademark of the Microsoft Corporation, Redmond, Washington, USA
VITON ®
Registered trademark of DuPont Performance Elastomers L.L.C., Wilmington, USA
TRI-CLAMP ®
Registered trademark of Ladish & Co., Inc., Kenosha, USA
Applicator®, DeviceCare®, FieldCare®
Registered or registration-pending trademarks of the Endress+Hauser Group

Basic safety instructions Dosimass
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2 Basic safety instructions
2.1 Requirements for the personnel
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
2.2 Designated use
Application and media
The measuring device described in these Instructions is intended only for flow
measurement of liquids and gases.
Depending on the version ordered, the measuring device can also measure potentially
explosive, flammable, poisonous and oxidizing media.
Measuring devices for use in hazardous areas, in hygienic applications or in applications
where there is an increased risk due to process pressure, are labeled accordingly on the
nameplate.
To ensure that the measuring device remains in proper condition for the operation time:
‣Only use the measuring device in full compliance with the data on the nameplate and
the general conditions listed in the Operating Instructions and supplementary
documentation.
‣Based on the nameplate, check whether the ordered device is permitted for the
intended use in the hazardous area (e.g. explosion protection, pressure vessel safety).
‣Use the measuring device only for media against which the process-wetted materials
are adequately resistant.
‣If the measuring device is not operated at atmospheric temperature, compliance with
the relevant basic conditions specified in the associated device documentation is
absolutely essential: "Documentation" section (→  6).
Incorrect use
Non-designated use can compromise safety. The manufacturer is not liable for damage
caused by improper or non-designated use.
LWARNING
Danger of breakage of the measuring tube due to corrosive or abrasive fluids.
Housing breakage due to mechanical overload possible!
‣Verify the compatibility of the process fluid with the measuring tube material.
‣Ensure the resistance of all fluid-wetted materials in the process.
‣Observe the specified pressure and temperature range.
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

Dosimass Basic safety instructions
Endress+Hauser 9
warranty or liability as minute changes in the temperature, concentration or level of
contamination in the process can alter the corrosion resistance properties.
Residual risks
The external surface temperature of the housing can increase by max. 20 K due to the
power consumption of the electronic components. Hot process fluids passing through the
measuring device will further increase the surface temperature of the housing. The surface
of the sensor, in particular, can reach temperatures which are close to the fluid
temperature.
Possible burn hazard due to fluid temperatures!
‣For elevated fluid temperature, ensure protection against contact to prevent burns.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
For welding work on the piping:
‣Do not ground the welding unit via the measuring device.
If working on and with the device with wet hands:
‣It is recommended to wear gloves on account of the higher risk of electric shock.
2.4 Operational 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.
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,
‣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.
2.5 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 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.
2.6 IT security
We only provide a warranty if the device is installed and used as described in the
Operating Instructions. The device is equipped with security mechanisms to protect it
against any inadvertent changes to the device settings.

Basic safety instructions Dosimass
10 Endress+Hauser
IT security measures in line with operators' security standards and designed to provide
additional protection for the device and device data transfer must be implemented by the
operators themselves.

Dosimass Incoming acceptance and product identification
Endress+Hauser 11
3 Incoming acceptance and product
identification
3.1 Incoming acceptance
1
+
2
1
+
2
Are the order codes on the
delivery note (1) and the
product sticker (2)
identical?
Are the goods undamaged?
Do the nameplate data
match the ordering
information on the delivery
note?
Is the CD-ROM with the
Technical Documentation
(depends on device
version) and documents
present?
• If one of the conditions is not satisfied, contact your Endress+Hauser Sales Center.
• Depending on the device version, the CD-ROM might not be part of the delivery! In
such cases, the technical documentation is available via the Internet or via the
Endress+Hauser Operations App, see the "Product identification" section
(→  12).
3.2 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.
• Enter the serial number from the nameplates into the Endress+Hauser Operations App
or scan the 2-D matrix code (QR code) on the nameplate with the Endress+Hauser
Operations App: all the information for the measuring device is displayed.

Incoming acceptance and product identification Dosimass
12 Endress+Hauser
For an overview of the scope of the associated Technical Documentation, refer to the
following:
• The chapters "Additional standard documentation on the device" (→  7) and
"Supplementary device-dependent documentation" (→  7)
• The W@M Device Viewer: Enter the serial number from the nameplate
(www.endress.com/deviceviewer)
• The Endress+Hauser Operations App: Enter the serial number from the nameplate or
scan the 2-D matrix code (QR code) on the nameplate.
3.2.1 Sensor nameplate
Ta:
Materials:
Tm:
Order Code:
TAG no.:
Ser. no.:
Ta+20°C/36°F
Dosimass
For installation and temp.
marking see control dwgs.
4153 Reinach
Switzerland
2014
i
1
3
4
5
6
7
812
9
10
11
2
A0007262
 1 Example of a sensor nameplate
1 Order code: see the specifications on the order confirmation for the meanings of the individual letters and
digits
2 Serial number
3 Supply voltage and power consumption
4 Process connection
5 Wetted materials
6 Maximum process temperature
7 Permitted ambient temperature range
8 Space reserved for additional information on the device version (approvals, certificates, etc.)
9 Degree of protection
10 Flow direction
11 Cable temperature
12 Space reserved for additional information on the device version (approvals, certificates, etc.)
Order code
The measuring device is reordered using the order code.
Extended order code
• The device type (product root) and basic specifications (mandatory features) are
always listed.
• Of the optional specifications (optional features), only the safety and approval-
related specifications are listed (e.g. LA). If other optional specifications are also
ordered, these are indicated collectively using the # placeholder symbol (e.g. #LA#).
• If the ordered optional specifications do not include any safety and approval-related
specifications, they are indicated by the + placeholder symbol (e.g. XXXXXX-ABCDE
+).

Dosimass Incoming acceptance and product identification
Endress+Hauser 13
3.2.2 Symbols on measuring device
Symbol Meaning

WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in serious
or fatal injury.
A0011194
Reference to documentation
Refers to the corresponding device documentation.
A0011199
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.

Storage and transport Dosimass
14 Endress+Hauser
4 Storage and transport
4.1 Storage conditions
Observe the following notes for storage:
• Store in the original packaging to ensure protection from shock.
• Do not remove protective covers or protective caps installed on process connections.
They prevent mechanical damage to the sealing surfaces and fouling in the measuring
tube.
• Protect from direct sunlight to avoid unacceptably high surface temperatures.
• Storage temperature: –40 to +80 °C (–40 to +176 °F), preferable for +20 °C (+68 °F)
• Store in a dry and dust-free place.
• Do not store outdoors.
4.2 Transporting the product
Transport the measuring device to the measuring point in the original packaging.
A0015604
Do not remove protective covers or caps installed on process connections. They
prevent mechanical damage to the sealing surfaces and contamination in the
measuring tube.
4.2.1 Measuring devices without lifting lugs
LWARNING
Center of gravity of the measuring device is higher than the suspension points of the
webbing slings.
Risk of injury if the measuring device slips.
‣Secure the measuring device against slipping or turning.
‣Observe the weight specified on the packaging (stick-on label).
A0015606

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Endress+Hauser 15
4.2.2 Measuring devices with lifting lugs
LCAUTION
Special transportation instructions for devices with lifting lugs
‣Only use the lifting lugs fitted on the device or flanges to transport the device.
‣The device must always be secured at two lifting lugs at least.
4.2.3 Transporting with a fork lift
If transporting in wood crates, the floor structure enables the crates to be lifted lengthwise
or at both sides using a forklift.
4.3 Packaging disposal
All packaging materials are environmentally friendly and 100% recyclable:
• Measuring device secondary packaging: polymer stretch film that conforms to EC
Directive 2002/95/EC (RoHS).
• Packaging:
– Wood crate, treated in accordance with ISPM 15 standard, which is confirmed by the
affixed IPPC logo.
or
– Carton in accordance with European Packaging Directive 94/62EC; recyclability is
confirmed by the affixed RESY symbol.
• Seaworthy packaging (optional): Wood crate, treated in accordance with ISPM 15
standard, which is confirmed by the affixed IPPC logo.
• Carrying and mounting hardware:
– Disposable plastic pallet
– Plastic straps
– Plastic adhesive strips
• Dunnage: Paper cushion

Installation Dosimass
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5 Installation
5.1 Installation conditions
No special measures such as supports are necessary. External forces are absorbed by the
construction of the device.
5.1.1 Mounting position
Mounting location
To prevent measuring errors arising from accumulation of gas bubbles in the measuring
tube, avoid the following mounting locations in the pipe:
• Highest point of a pipeline.
• Directly upstream of a free pipe outlet in a down pipe.
A0023344
Installation in down pipes
However, the following installation suggestion allows for installation in an open vertical
pipeline. Pipe restrictions or the use of an orifice with a smaller cross-section than the
nominal diameter prevent the sensor running empty while measurement is in progress.
1
2
3
4
5
A0015596
 2 Installation in a down pipe (e.g. for batching applications)
1 Supply tank
2 Sensor
3 Orifice plate, pipe restriction
4 Valve
5 Batching tank

Dosimass Installation
Endress+Hauser 17
DN Ø orifice plate, pipe restriction
[mm] [in] [mm] [in]
8 ³⁄₈ 6 0.24
15 ½ 10 0.40
25 1 14 0.55
Orientation
The direction of the arrow on the sensor nameplate helps you to install the sensor
according to the flow direction (direction of medium flow through the piping).
Orientation Recommendation
AVertical orientation
A0015591
BHorizontal orientation, transmitter
head up
A0015589
1)
Exception:
(→  3,  17)
CHorizontal orientation, transmitter
head down
A0015590
2)
Exception:
(→  3,  17)
DHorizontal orientation, transmitter
head at side
A0015592
1) Applications with low process temperatures may reduce the ambient temperature. To maintain the
minimum ambient temperature for the transmitter, this orientation is recommended.
2) Applications with high process temperatures may increase the ambient temperature. To maintain the
maximum ambient temperature for the transmitter, this orientation is recommended.
If a sensor is installed horizontally with a curved measuring tube, match the position of the
sensor to the fluid properties.
1 2
A0014057
 3 Orientation of sensor with curved measuring tube
1 Avoid this orientation for fluids with entrained solids: Risk of solids accumulating.
2 Avoid this orientation for outgassing fluids: Risk of gas accumulating.
In the event of extreme heating (e.g. for CIP or SIP cleaning processes), we
recommend you install the measuring device in such a way that the transmitter part is
pointing downwards. This reduces the risk of the electronic components overheating.

Installation Dosimass
18 Endress+Hauser
A0003830
 4 Recommended orientation in the event of extreme heating
Inlet and outlet runs
No special precautions need to be taken for fittings which create turbulence, such as
valves, elbows or T-pieces, as long as no cavitation occurs (→  18).
A0015597 A0015598
Installation dimensions
For the dimensions and installation lengths of the device, see the "Technical
Information" document, "Mechanical construction" section
5.1.2 Requirements from environment and process
Ambient temperature range
Measuring device –40 to +60 °C (–40 to +140 °F)
(Sensor, transmitter)
Install the measuring device in a shady location. Avoid direct sunlight, particularly in warm
climatic regions.
‣If operating outdoors:
Avoid direct sunlight, particularly in warm climatic regions.
System pressure
It is important that cavitation does not occur, or that gases entrained in the liquids do not
outgas.
Cavitation is caused if the pressure drops below the vapor pressure:
• In liquids that have a low boiling point (e.g. hydrocarbons, solvents, liquefied gases)
• In suction lines
‣Ensure the system pressure is sufficiently high to prevent cavitation and outgassing.
For this reason, the following mounting locations are recommended:
• At the lowest point in a vertical pipe
• Downstream from pumps (no danger of vacuum)

Dosimass Installation
Endress+Hauser 19
A0015594
Thermal insulation
In the case of some fluids, it is important that the heat radiated from the sensor to the
transmitter is kept to a minimum. A wide range of materials can be used for the required
insulation.
The connection adapter between the sensor and transmitter must always be kept free.
Note that a certain orientation might be required, depending on the fluid temperature
(→  17)
Information on the permitted operating temperature range (→  18)
NOTICE
Electronics overheating on account of thermal insulation!
‣Observe maximum permitted insulation height of the transmitter neck so that the
transmitter head is completely free.
Heating
NOTICE
Electronics can overheat due to elevated ambient temperature!
‣Observe maximum permitted ambient temperature for the transmitter (→  18).
‣Depending on the fluid temperature, take the device orientation requirements into
account .
Heating options
If a fluid requires that no heat loss should occur at the sensor, users can avail of the
following heating options:
• Electrical heating, e.g. with electric band heaters
• Via pipes carrying hot water or steam
• Via heating jackets
Using an electrical trace heating system
If heating is regulated via phase angle control or pulse packages, magnetic fields can affect
the measured values (= for values that are greater than the values approved by the EN
standard (sine 30 A/m)).
For this reason, the sensor must be magnetically shielded: the housing can be shielded
with tin plates or electric sheets without a privileged direction (e.g. V330-35A).
The sheet must have the following properties:
• Relative magnetic permeability µr ≥ 300
• Plate thickness d ≥ 0.35 mm (d ≥ 0.014 in)
Vibrations
The high oscillation frequency of the measuring tubes ensures that the correct operation of
the measuring system is not influenced by plant vibrations.

Installation Dosimass
20 Endress+Hauser
5.1.3 Special mounting instructions
Zero point adjustment
All measuring devices are calibrated in accordance with state-of-the-art technology.
Calibration takes place under reference conditions (→  57). Therefore, a zero point
adjustment in the field is generally not required.
Experience shows that zero point adjustment is advisable only in special cases:
• To achieve maximum measuring accuracy even with low flow rates
• Under extreme process or operating conditions (e.g. very high process temperatures or
very high-viscosity fluids).
Zero point adjustment is performed via the Zero point adjustment control parameter
(→  35).
5.2 Mounting the measuring device
5.2.1 Required tools
For sensor
For flanges and other process connections: Corresponding mounting tools
5.2.2 Preparing the measuring device
1. Remove all remaining transport packaging.
2. Remove any protective covers or protective caps present from the sensor.
3. Remove stick-on label on the electronics compartment cover.
5.2.3 Mounting the measuring device
LWARNING
Danger due to improper process sealing!
‣Ensure that the inside diameters of the gaskets are greater than or equal to that of the
process connections and piping.
‣Ensure that the gaskets are clean and undamaged.
‣Install the gaskets correctly.
1. Ensure that the direction of the arrow on the nameplate of the sensor matches the
flow direction of the fluid.
2. Install the measuring device or turn the transmitter housing so that the cable entries
do not point upwards.
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