KROHNE MFC 400 User manual

Signal converter for mass flowmeters
Electronic Revision:
ER 2.0.xx
MFC 400
MFC 400MFC 400
MFC 400 Handbook
HandbookHandbook
Handbook
© KROHNE 07/2016 - 4002075804 - MA MFC 400 R04 en
The documentation is only complete when used in combination with the relevant
documentation for the flow sensor.

All rights reserved. It is prohibited to reproduce this documentation, or any part thereof, without
the prior written authorisation of KROHNE Messtechnik GmbH.
Subject to change without notice.
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Copyright 2016 by
KROHNE Messtechnik GmbH - Ludwig-Krohne-Str. 5 - 47058 Duisburg (Germany)
: IMPRINT :::::::::::::::::::::::::::::::::::::::

CONTENTS
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1 Safety instructions 6
1.1 Software history ............................................................................................................... 6
1.2 Intended use ..................................................................................................................... 7
1.3 CE certification ................................................................................................................. 7
1.4 Safety instructions from the manufacturer ..................................................................... 8
1.4.1 Copyright and data protection ................................................................................................ 8
1.4.2 Disclaimer ............................................................................................................................... 8
1.4.3 Product liability and warranty ................................................................................................ 9
1.4.4 Information concerning the documentation........................................................................... 9
1.4.5 Warnings and symbols used................................................................................................. 10
1.5 Safety instructions for the operator............................................................................... 10
2 Device description 11
2.1 Scope of delivery............................................................................................................. 11
2.2 Device description .......................................................................................................... 12
2.2.1 Field housing......................................................................................................................... 13
2.3 Nameplates .................................................................................................................... 14
2.3.1 Example of a nameplate ....................................................................................................... 14
2.3.2 Electrical connection data of inputs/outputs (example of basic version)............................ 15
3 Installation 16
3.1 General notes on installation ......................................................................................... 16
3.2 Storage ........................................................................................................................... 16
3.3 Transport ........................................................................................................................ 16
3.4 Installation specifications .............................................................................................. 16
3.5 Mounting of the compact version................................................................................... 17
3.6 Mounting the field housing, remote version .................................................................. 17
3.6.1 Pipe mounting ....................................................................................................................... 17
3.6.2 Wall mounting ....................................................................................................................... 18
3.6.3 Turning the display of the field housing version .................................................................. 19
4 Electrical connections 20
4.1 Safety instructions.......................................................................................................... 20
4.2 Important notes on electrical connection...................................................................... 20
4.3 Signal cable requirements ............................................................................................. 21
4.4 Connecting the signal cables ......................................................................................... 22
4.4.1 Connection of signal cable - field housing and connection box for flow sensor ................. 22
4.4.2 Connection diagram.............................................................................................................. 24
4.5 Grounding the flow sensor ............................................................................................. 24
4.6 Connecting power - all housing variants ....................................................................... 25
4.7 Inputs and outputs, overview ......................................................................................... 26
4.7.1 Combinations of the inputs/outputs (I/Os) ........................................................................... 26
4.7.2 Description of the CG number .............................................................................................. 27
4.7.3 Fixed, non-alterable input/output versions.......................................................................... 28
4.7.4 Alterable input/output versions............................................................................................ 29

CONTENTS
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4.8 Description of the inputs and outputs........................................................................................... 30
4.8.1 Current output ...................................................................................................................... 30
4.8.2 Pulse output and frequency output ...................................................................................... 31
4.8.3 Status output and limit switch .............................................................................................. 32
4.8.4 Control input ......................................................................................................................... 33
4.9 Electrical connection of the inputs and outputs ............................................................ 34
4.9.1 Field housing, electrical connection of the inputs and outputs........................................... 34
4.9.2 Laying electrical cables correctly......................................................................................... 35
4.10 Description of the inputs and outputs.......................................................................... 36
4.10.1 Important notes................................................................................................................... 36
4.10.2 Description of the electrical symbols................................................................................. 37
4.10.3 Modular inputs/outputs and bus systems .......................................................................... 38
4.10.4 Ex i inputs/outputs .............................................................................................................. 46
4.10.5 HART
®
connection .............................................................................................................. 49
5 Start-up 51
5.1 Switching on the power .................................................................................................. 51
5.2 Starting the signal converter ......................................................................................... 51
6 Operation 52
6.1 Display and operating elements .................................................................................... 52
6.1.1 Display in measuring mode with 2 or 3 measured values ................................................... 54
6.1.2 Display for selection of submenu and functions, 3 lines ..................................................... 54
6.1.3 Display when setting parameters, 4 lines ............................................................................ 55
6.1.4 Display when previewing parameters, 4 lines...................................................................... 55
6.1.5 Using an IR interface (option) ............................................................................................... 56
6.2 Menu structure............................................................................................................... 57
6.3 Function tables ............................................................................................................... 61
6.3.1 Menu "Quick Setup" .............................................................................................................. 61
6.3.2 Menu "Test"........................................................................................................................... 63
6.3.3 Menu "Setup" ........................................................................................................................ 65
6.3.4 Set free units......................................................................................................................... 79
6.4 Calibration functions ......................................................................................................80
6.4.1 Zero calibration (C1.1.1 Calibrate Zero) ............................................................................... 80
6.4.2 Density calibration (C1.2.1 Calibrate Density)...................................................................... 82
6.4.3 Temperature/density tables ................................................................................................. 84
6.5 Measurement functions ................................................................................................. 87
6.5.1 Flow (C1.1.0 Flow)................................................................................................................. 87
6.5.2 Density (C1.2.0 Density) ........................................................................................................ 89
6.5.3 System control (C1.4.0 System Control)............................................................................... 90
6.5.4 Detection of 2 phase flow...................................................................................................... 91
6.6 I/O configuration............................................................................................................. 92
6.6.1 Damp output signals............................................................................................................. 92
6.6.2 Suppress small flow rates.................................................................................................... 92
6.6.3 Polarity of measurement ...................................................................................................... 93
6.6.4 Current output ...................................................................................................................... 93
6.6.5 Alarm signalling via current outputs.................................................................................... 94
6.6.6 Pulse output and batching applications ............................................................................... 94

CONTENTS
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6.7 Display configuration .................................................................................................................... 94
6.7.1 Optical keys (C5.3.0 Optical Keys)......................................................................................... 94
6.7.2 Backlight (C5.4.0 Backlight) ................................................................................................. 95
6.8 Configuration management (C6.3.0 Config. Management) ........................................... 95
6.8.1 Load and save configuration (C6.3.2 & C6.3.1)..................................................................... 95
6.8.2 Factory reset (C6.3.3 Factory Reset) .................................................................................... 95
6.8.3 Change log (B1.2.0 Change Log)...........................................................................................95
6.8.4 Locking of configuration ....................................................................................................... 96
6.9 Special functions ............................................................................................................ 98
6.10 SIL configuration (only for SIL capable devices).......................................................... 98
6.11 Testing of device installation (B3.0.0 Simulation)........................................................ 98
6.12 Diagnostic information and status messages ............................................................. 99
6.12.1 Status groups (C6.6.0 Status Groups)............................................................................... 100
6.12.2 Status log (B1.1.0 Status Log)........................................................................................... 100
6.12.3 Reset errors (A2.1.0 Reset Errors) ................................................................................... 101
7 Service 102
7.1 Replacing the signal converter electronics ................................................................. 102
7.2 Driver or sensor coil fault ............................................................................................ 103
7.2.1 OPTIMASS 1000................................................................................................................... 103
7.2.2 OPTIMASS 2000................................................................................................................... 104
7.2.3 OPTIMASS 3000................................................................................................................... 105
7.2.4 OPTIMASS 6000................................................................................................................... 106
7.2.5 OPTIMASS 7000................................................................................................................... 107
7.3 Spare parts availability................................................................................................. 108
7.4 Availability of services .................................................................................................. 108
7.5 Returning the device to the manufacturer................................................................... 108
7.5.1 General information............................................................................................................ 108
7.5.2 Form (for copying) to accompany a returned device.......................................................... 109
7.6 Disposal ........................................................................................................................ 109
8 Technical data 110
8.1 Measuring principle .......................................................................................................................................110
8.2 Technical data ................................................................................................................................................110
8.3 Dimensions and weight ....................................................................................................... 121
8.3.1 Housing ............................................................................................................................... 121
8.3.2 Mounting plate, field housing ............................................................................................. 121
9 Description of HART interface 122
9.1 General description..................................................................................................................... 122
9.2 Software history .......................................................................................................................... 122
9.3 Connection variants .................................................................................................................... 123
9.3.1 Point-to-Point connection - analogue / digital mode......................................................... 124
9.3.2 Multi-Drop connection (2-wire connection) ....................................................................... 125
9.3.3 Multi-Drop connection (3-wire connection) ....................................................................... 126
9.4 Inputs/outputs and HART
®
dynamic variables and device variables ...........................................................127
10 Notes 129

1 SAFETY INSTRUCTIONS
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1.1 Software history
The "Electronic Revision" (ER) is consulted to document the revision status of electronic
equipment according to NE 53 for all GDC devices. It is easy to see from the ER whether
troubleshooting or larger changes in the electronic equipment have taken place and how that
has affected the compatibility.
Changes and effect on compatibility
1Downwards compatible changes and fault repair with no effect on operation (e.g. spelling
mistakes on display)
2-_ Downwards compatible hardware and/or software change of interfaces:
HHART
®
PPROFIBUS
FFoundation Fieldbus
MModbus
Xall interfaces
3-_ Downwards compatible hardware and/or software change of inputs and outputs:
ICurrent output
F, P Frequency / pulse output
SStatus output
CControl input
CI Current input
Xall inputs and outputs
4Downwards compatible changes with new functions
5Incompatible changes, i.e. electronic equipment must be changed.
INFORMATION!
In the table below, "x" is a placeholder for possible multi-digit alphanumeric combinations,
depending on the available version.
Release date Electronic Revision Changes and
compatibility
Documentation
2012-09-06 ER 1.0.0x -MA MFC400 R01
2013-03-12 ER 1.0.1x 1MA MFC400 R02
2013-06-27 ER 1.0.2x 1; 2-M; 2-H MA MFC400 R02
2013-06-27 ER 1.0.3x 1; 2-F; 2-P; 2-X MA MFC400 R02
2013-11-04 ER 1.0.4x 2-H; 3-P; 3-F MA MFC400 R03
2014-05-06 ER 1.0.5x 1MA MFC400 R03
2014-08-08 ER 1.0.6x 1; 3-P; 3-I; 2-H MA MFC400 R03
2016-07-01 ER 2.0.0x 5MA MFC400 R04

SAFETY INSTRUCTIONS 1
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1.2 Intended use
The mass flowmeters are designed exclusively to directly measure mass flow rates, product
density and temperature as well to indirectly measure parameters such as the total volume and
concentration of dissolved substances as well as the volume flow rate.
1.3 CE certification
This device conforms with the most recent and up to date versions of the following:
•EMC Directive
•ATEX Directive
•Low Voltage Directive
•Pressure Equipment Directive
The manufacturer declares conformity and the device carries the CE mark.
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
CAUTION!
For devices used in SIL applications, additional safety notes apply. For detailed information refer
to the "Safety manual".
WARNING!
If the device is not used according to the operating conditions (refer to chapter Technical data),
the intended protection could be affected.
INFORMATION!
This device is a Group 1, Class A device as specified within CISPR11:2009. It is intended for use in
industrial environment. There may be potential difficulties in ensuring electromagnetic
compatibility in other environments, due to conducted as well as radiated disturbances.
CE marking

1 SAFETY INSTRUCTIONS
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1.4 Safety instructions from the manufacturer
1.4.1 Copyright and data protection
The contents of this document have been created with great care. Nevertheless, we provide no
guarantee that the contents are correct, complete or up-to-date.
The contents and works in this document are subject to copyright. Contributions from third
parties are identified as such. Reproduction, processing, dissemination and any type of use
beyond what is permitted under copyright requires written authorisation from the respective
author and/or the manufacturer.
The manufacturer tries always to observe the copyrights of others, and to draw on works created
in-house or works in the public domain.
The collection of personal data (such as names, street addresses or e-mail addresses) in the
manufacturer's documents is always on a voluntary basis whenever possible. Whenever
feasible, it is always possible to make use of the offerings and services without providing any
personal data.
We draw your attention to the fact that data transmission over the Internet (e.g. when
communicating by e-mail) may involve gaps in security. It is not possible to protect such data
completely against access by third parties.
We hereby expressly prohibit the use of the contact data published as part of our duty to publish
an imprint for the purpose of sending us any advertising or informational materials that we have
not expressly requested.
1.4.2 Disclaimer
The manufacturer will not be liable for any damage of any kind by using its product, including,
but not limited to direct, indirect or incidental and consequential damages.
This disclaimer does not apply in case the manufacturer has acted on purpose or with gross
negligence. In the event any applicable law does not allow such limitations on implied warranties
or the exclusion of limitation of certain damages, you may, if such law applies to you, not be
subject to some or all of the above disclaimer, exclusions or limitations.
Any product purchased from the manufacturer is warranted in accordance with the relevant
product documentation and our Terms and Conditions of Sale.
The manufacturer reserves the right to alter the content of its documents, including this
disclaimer in any way, at any time, for any reason, without prior notification, and will not be liable
in any way for possible consequences of such changes.

SAFETY INSTRUCTIONS 1
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1.4.3 Product liability and warranty
The operator shall bear responsibility for the suitability of the device for the specific purpose.
The manufacturer accepts no liability for the consequences of misuse by the operator. Improper
installation or operation of the devices (systems) will cause the warranty to be void. The
respective "Standard Terms and Conditions" which form the basis for the sales contract shall
also apply.
1.4.4 Information concerning the documentation
To prevent any injury to the user or damage to the device it is essential that you read the
information in this document and observe applicable national standards, safety requirements
and accident prevention regulations.
If this document is not in your native language and if you have any problems understanding the
text, we advise you to contact your local office for assistance. The manufacturer can not accept
responsibility for any damage or injury caused by misunderstanding of the information in this
document.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device. Special considerations and precautions are also described in the
document, which appear in the form of icons as shown below.

1 SAFETY INSTRUCTIONS
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1.4.5 Warnings and symbols used
Safety warnings are indicated by the following symbols.
• HANDLING
HANDLINGHANDLING
HANDLING
This symbol designates all instructions for actions to be carried out by the operator in the
specified sequence.
iRESULT
RESULTRESULT
RESULT
This symbol refers to all important consequences of the previous actions.
1.5 Safety instructions for the operator
DANGER!
This warning refers to the immediate danger when working with electricity.
DANGER!
This warning refers to the immediate danger of burns caused by heat or hot surfaces.
DANGER!
This warning refers to the immediate danger when using this device in a hazardous atmosphere.
DANGER!
These warnings must be observed without fail. Even partial disregard of this warning can lead to
serious health problems and even death. There is also the risk of seriously damaging the device
or parts of the operator's plant.
WARNING!
Disregarding this safety warning, even if only in part, poses the risk of serious health problems.
There is also the risk of damaging the device or parts of the operator's plant.
CAUTION!
Disregarding these instructions can result in damage to the device or to parts of the operator's
plant.
INFORMATION!
These instructions contain important information for the handling of the device.
LEGAL NOTICE!
This note contains information on statutory directives and standards.
WARNING!
In general, devices from the manufacturer may only be installed, commissioned, operated and
maintained by properly trained and authorized personnel.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device.

DEVICE DESCRIPTION 2
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2.1 Scope of delivery
Signal converter/flow sensor combination possibilities
INFORMATION!
Inspect the packaging carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
Figure 2-1: Scope of delivery
1 Device in the version as ordered
2 Documentation (calibration protocol, factory and material certification if ordered, CD-ROM with product documenta-
tion for flow sensor and signal converter)
3 Signal cable (only for remote version)
Flow sensor Flow sensor + signal converter MFC 400
Compact Remote field housing
OPTIMASS 1000 OPTIMASS 1400 C OPTIMASS 1400 F
OPTIMASS 2000 OPTIMASS 2400 C OPTIMASS 2400 F
OPTIMASS 3000 OPTIMASS 3400 C OPTIMASS 3400 F
OPTIMASS 6000 OPTIMASS 6400 C OPTIMASS 6400 F
OPTIMASS 7000 OPTIMASS 7400 C OPTIMASS 7400 F

2 DEVICE DESCRIPTION
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2.2 Device description
The mass flowmeters are designed exclusively to directly measure mass flow rates, product
density and temperature as well to indirectly measure parameters such as the total volume and
concentration of dissolved substances as well as the volume flow rate.
Your measuring device is supplied ready for operation. The factory settings for the operating
data have been made in accordance with your order specifications.
The following versions are available:
•Compact version (the signal converter is mounted directly on the flow sensor)
•Remote version (electrical connection to the flow sensor via field current and signal cable)
Figure 2-2: Versions with bent tube
1 Compact version
2 Flow sensor with connection box
3 Field housing
Figure 2-3: Versions with straight tube
1 Compact version
2 Flow sensor with connection box
3 Field housing

DEVICE DESCRIPTION 2
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2.2.1 Field housing
Figure 2-4: Construction of the field housing
1 Cover for electronics and display
2 Cover for power supply and inputs/outputs terminal compartment
3 Cover for flow sensor terminal compartment
4 Cable entry for flow sensor signal cable
5 Cable entry for flow sensor field current cable
6 Cable entry for power supply
7 Cable entry for inputs and outputs
8 Mounting plate for pipe and wall mounting
INFORMATION!
Each time a housing cover is opened, the thread should be cleaned and greased. Use only resin-
free and acid-free grease.
Ensure that the housing gasket is properly fitted, clean and undamaged.

2 DEVICE DESCRIPTION
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2.3 Nameplates
2.3.1 Example of a nameplate
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
Figure 2-5: Example of a nameplate
1 Approvals-related information: Ex approval, EC type test certificate, hygienic approvals, etc.
2 Approvals-related thresholds
3 Additional information on documentation, calibration and patents
4 Protection category
5 Electrical connection data
6 Software and hardware revision (Electronics Revision), CG number, order number for signal converter and flow sensor
7 Product description
8 Manufacturer and manufacturer logo

DEVICE DESCRIPTION 2
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2.3.2 Electrical connection data of inputs/outputs (example of basic version)
•A = active mode; the signal converter supplies the power for connection of the subsequent
devices
•P = passive mode; external power supply required for operation of the subsequent devices
•N/C = connection terminals not connected
Figure 2-6: Example of a nameplate for electrical connection data of inputs and outputs
1 Power supply (AC: L and N; DC: L+ and L-; PE for ≥24 VAC; FE for ≤24 VAC and DC)
2 Connection data of connection terminal D/D-
3 Connection data of connection terminal C/C-
4 Connection data of connection terminal B/B-
5 Connection data of connection terminal A/A-; A+ only operable in the basic version

3 INSTALLATION
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3.1 General notes on installation
3.2 Storage
•Store the device in a dry, dust-free location.
•Avoid continuous direct sunlight.
•Store the device in its original packing.
•Storage temperature: -40...+70°C / -40...+158°F
3.3 Transport
Signal converter
•No special requirements.
Compact version
•Do not lift the device by the signal converter housing.
•Do not use lifting chains.
•To transport flange devices, use lifting straps. Wrap these around both process connections.
3.4 Installation specifications
INFORMATION!
Inspect the packaging carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
INFORMATION!
The following precautions must be taken to ensure reliable installation.
• Make sure that there is adequate space to the sides.
• Protect the signal converter from direct sunlight and install a sun shade if necessary.
• Signal converters installed in control cabinets require adequate cooling, e.g. by fan or heat
exchanger.
• Do not expose the signal converter to intense vibrations. The measuring devices are tested
for a vibration level as described in chapter "Technical data".

INSTALLATION 3
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3.5 Mounting of the compact version
3.6 Mounting the field housing, remote version
3.6.1 Pipe mounting
1 Fix the signal converter to the pipe.
2 Fasten the signal converter using standard U-bolts and washers.
3 Tighten the nuts.
CAUTION!
Turning the housing of the compact version is not permitted.
INFORMATION!
The signal converter is mounted directly on the flow sensor. For installation of the flowmeter,
please observe the instructions in the supplied product documentation for the flow sensor.
CAUTION!
Remarks for sanitary applications
• To prevent contamination and dirt deposits behind the mounting plate, a cover plug must be
installed between the wall and the mounting plate.
• Pipe mounting is not suitable for sanitary applications!
INFORMATION!
Assembly materials and tools are not part of the delivery. Use the assembly materials and tools
in compliance with the applicable occupational health and safety directives.
Figure 3-1: Pipe mounting of the field housing

3 INSTALLATION
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3.6.2 Wall mounting
1 Prepare the holes with the aid of the mounting plate. For further information refer to Mounting
plate, field housing
on page 121.
2 Fasten the mounting plate securely to the wall.
3 Screw the signal converter to the mounting plate with the nuts and washers.
Figure 3-2: Wall mounting of the field housing
Mounting multiple devices next to each other
a ≥600 mm / 23.6"
b ≥250 mm / 9.8"

INSTALLATION 3
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3.6.3 Turning the display of the field housing version
The display of the field housing version can be turned in 90°increments
1 Unscrew the cover from the display and operation control unit.
2 Pull out the display and rotate it to the required position.
3 Slide the display back into the housing.
4 Re-fit the cover and tighten it by hand.
Figure 3-3: Turning the display of the field housing version
CAUTION!
The ribbon cable of the display must not be folded or twisted repeatedly.
INFORMATION!
Each time a housing cover is opened, the thread should be cleaned and greased. Use only resin-
free and acid-free grease.
Ensure that the housing gasket is properly fitted, clean and undamaged.

4 ELECTRICAL CONNECTIONS
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4.1 Safety instructions
4.2 Important notes on electrical connection
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
DANGER!
Observe the national regulations for electrical installations!
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
WARNING!
Observe without fail the local occupational health and safety regulations. Any work done on the
electrical components of the measuring device may only be carried out by properly trained
specialists.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
DANGER!
Electrical connection is carried out in conformity with the VDE 0100 directive "Regulations for
electrical power installations with line voltages up to 1000 V" or equivalent national regulations.
CAUTION!
• Use suitable cable entries for the various electrical cables.
• The flow sensor and signal converter have been configured together at the factory. For this
reason, please connect the devices in pairs.