Siemens SITRANS FUE950 User manual

Ultrasonic flowmeters
SITRANS FUE950 Energy Calculator
Operating Instructions • 05/2011
SITRANS F

1
Introduction
2
Safety notes
3
Description
SITRANS F
4
Installing/mounting
Energy calculator type
SITRANS FUE950
5
Connecting
6
Commissioning
Operating Instructions 7
Service and maintenance
8
Troubleshooting/FAQs
9
Technical data
10
Dimension drawings
11
Spare parts/accessories
A
Appendix
B
Loops
Energy calculator designed for use with flowmeter
types SITRANS FUS/FUE380, MAG 5000/6000 and
MAG 8000
(Documentation for SITRANS FUE950 with order
code 7ME3480)
05/2011
A5E03424739-01

Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
NOTICE
indicates that an unintended result or situation can occur if the corresponding information is not taken into
account.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation for the specific task, in particular its warning notices and
safety instructions. Qualified personnel are those who, based on their training and experience, are capable of
identifying risks and avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be adhered to. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this
publication may be trademarks whose use by third parties for their own purposes could violate the rights of the
owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
Siemens AG order number: A5E03424739 Copyright © Siemens AG 2011.
Industry Sector Ⓟ 05/2011 Technical data subject to change
Postfach 48 48
90026 NÜRNBERG
GERMANY

SITRANS FUE950
Operating Instructions, 05/2011, A5E03424739-01 3
Table of contents
1 Introduction................................................................................................................................................ 7
1.1 Preface...........................................................................................................................................7
1.2 Items supplied................................................................................................................................7
1.3 Device identification.......................................................................................................................8
1.4 History............................................................................................................................................9
1.5 Further Information ......................................................................................................................10
2 Safety notes............................................................................................................................................. 11
2.1 General safety instructions ..........................................................................................................11
2.2 Laws and directives .....................................................................................................................11
2.3 Lithium batteries...........................................................................................................................12
2.4 General requirements ..................................................................................................................13
3 Description............................................................................................................................................... 15
3.1 General description......................................................................................................................15
3.2 Measuring principle......................................................................................................................16
3.3 Applications..................................................................................................................................17
3.4 Design..........................................................................................................................................18
4 Installing/mounting................................................................................................................................... 21
4.1 Application planning.....................................................................................................................21
4.2 Ambient conditions.......................................................................................................................21
4.3 Application settings ......................................................................................................................22
4.4 Installing the device .....................................................................................................................23
4.5 Temperature sensors...................................................................................................................24
4.5.1 Installing the temperature sensors...............................................................................................25
4.6 Installing the flowmeter ................................................................................................................28
5 Connecting .............................................................................................................................................. 29
5.1 Temperature sensors...................................................................................................................29
5.2 Procedure.....................................................................................................................................29
5.3 Pulse input ...................................................................................................................................32
5.4 Connection of the flowmeter ........................................................................................................33
5.5 Power supply options...................................................................................................................34
5.6 Add-on output and input modules................................................................................................36
5.6.1 Description of add-on modules ....................................................................................................37

Table of contents
SITRANS FUE950
4 Operating Instructions, 05/2011, A5E03424739-01
5.6.2 Module description ...................................................................................................................... 38
6 Commissioning ........................................................................................................................................ 45
6.1 General requirements ................................................................................................................. 45
6.2 Display......................................................................................................................................... 46
6.3 Menu structure ............................................................................................................................ 47
6.4 Function test................................................................................................................................ 48
7 Service and maintenance ........................................................................................................................ 51
7.1 Replacing the battery .................................................................................................................. 51
7.2 Sealing ........................................................................................................................................ 51
7.3 Verification................................................................................................................................... 52
7.4 Technical support........................................................................................................................ 53
7.5 Return procedures ...................................................................................................................... 54
7.6 Battery disposal........................................................................................................................... 55
8 Troubleshooting/FAQs............................................................................................................................. 57
8.1 Error information and codes........................................................................................................ 57
8.2 Temperature sensors .................................................................................................................. 59
8.3 Condensation .............................................................................................................................. 59
8.4 Maximum cable length ................................................................................................................ 59
8.5 Temperature difference............................................................................................................... 60
9 Technical data ......................................................................................................................................... 61
9.1 Energy calculator ........................................................................................................................ 61
9.2 Option modules ........................................................................................................................... 63
9.3 Temperature sensors .................................................................................................................. 66
10 Dimension drawings ................................................................................................................................ 69
10.1 Dimensional drawings................................................................................................................. 69
11 Spare parts/accessories .......................................................................................................................... 71
11.1 Ordering ...................................................................................................................................... 71
11.2 Accessories................................................................................................................................. 71
11.3 Power supply...............................................................................................................................73
11.4 Temperature sensor pocket ........................................................................................................ 73
11.5 Pt500 temperature sensor pair ................................................................................................... 74
A Appendix.................................................................................................................................................. 75
A.1 Temperature sensors .................................................................................................................. 75
A.2 Conformity to guidelines.............................................................................................................. 77
A.3 Certificates .................................................................................................................................. 77

Table of contents
SITRANS FUE950
Operating Instructions, 05/2011, A5E03424739-01 5
B Loops....................................................................................................................................................... 79
B.1 Main loop......................................................................................................................................79
B.2 Accounting date loop ...................................................................................................................80
B.3 Information loop ...........................................................................................................................81
B.4 Pulse input loop ...........................................................................................................................82
B.5 Tariff loop .....................................................................................................................................83
B.6 Month loop ...................................................................................................................................84
Index........................................................................................................................................................ 85

Table of contents
SITRANS FUE950
6 Operating Instructions, 05/2011, A5E03424739-01

SITRANS FUE950
Operating Instructions, 05/2011, A5E03424739-01 7
Introduction 1
1.1 Preface
These instructions contain all the information you need for using the device.
The instructions are aimed at persons mechanically installing the device, connecting it
electronically, configuring the parameters and commissioning it as well as service and
maintenance engineers.
Note
It is the responsibility of the customer that the instructions and directions provided in the
operating instructions are read, understood and followed by the relevant personnel before
installing the device.
1.2 Items supplied
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● Energy calculator type SITRANS FUE950
● Temperature sensors (1 pair including the test report), typical Pt500 1)
● Temperature sensor pockets (2 pieces) 1)
● Wall mounting bracket
● SITRANS F US literature CD
● Quick start guide
● Calibration report

Introduction
1.3 Device identification
SITRANS FUE950
8 Operating Instructions, 05/2011, A5E03424739-01
1): Scope of delivery may vary depending on selections at ordering.
Note
Compatibility
The accessories for each FUE950 version are not compatible with other FUE950 versions,
e.g. add-on modules for 7ME3480 versions can only be used with 7ME3480 devices.
1.3 Device identification
Inspection
1. Check for mechanical damage due to possible improper handling during shipment. All
claims for damage are to be made promptly to the carrier.
2. Make sure the scope of the delivery, and the information on the nameplate correspond to
the ordering information

Introduction
1.4 History
SITRANS FUE950
Operating Instructions, 05/2011, A5E03424739-01 9
Identification
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Siemens A/S Flow Instruments
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① Product name
② CE sign (Declaration of Conformity)
③ Year of first verification (if ordered)
④ MID approval number (if ordered with MID approval)
⑤ Installation place and pulse input setting
⑥ Serial number
⑦ Device data
•Temperature input and range
•Environment data
•Production year
⑧ Code number (7ME3480...)
Figure 1-1 FUE950 nameplate
1.4 History
The contents of these instructions are regularly reviewed and corrections are included in
subsequent editions. We welcome all suggestions for improvement.
The following table shows the most important changes in the documentation compared to
each previous edition.
Edition Remarks
08/2003 •FUS105 (based on type Infocal 5)
09/2006 •New name: FUE950
12/2009 •New order structure (7ME3470...)
•Product update
03/2011 •New order structure (7ME3480...)
•Product upgrade included

Introduction
1.5 Further Information
SITRANS FUE950
10 Operating Instructions, 05/2011, A5E03424739-01
1.5 Further Information
Product information on the Internet
The Operating Instructions are available on the CD-ROM shipped with the device, and on
the Internet on the Siemens homepage, where further information on the range of SITRANS
F flowmeters may also be found:
Product information on the internet (http://www.siemens.com/flowdocumentation)
Worldwide contact person
If you need more information or have particular problems not covered sufficiently by these
Operating Instructions, get in touch with your contact person. You can find contact
information for your local contact person on the Internet:
Local contact person (http://www.automation.siemens.com/partner)

SITRANS FUE950
Operating Instructions, 05/2011, A5E03424739-01 11
Safety notes 2
2.1 General safety instructions
CAUTION
Correct, reliable operation of the product requires proper transport, storage, positioning and
assembly as well as careful operation and maintenance. Only qualified personnel should
install or operate this instrument.
Note
A
lterations to the product, including opening or improper modifications of the product, are not
permitted.
If this requirement is not observed, the CE mark and the manufacturer's warranty will expire.
2.2 Laws and directives
General requirements
Installation of the equipment must comply with national regulations. For example EN 60079-
14 for the European Community.
Instrument safety standards
The device has been tested at the factory, based on the safety requirements. In order to
maintain this condition over the expected life of the device the requirements described in
these Operating Instructions must be observed.
CAUTION
Material compatibility
Siemens A/S, Flow Instruments can provide assistance with the selection of wetted sensor
parts. However, the full responsibility for the selection rests with the customer and Siemens
A/S, Flow Instruments can take no responsibility for any failure due to material
incompatibility.

Safety notes
2.3 Lithium batteries
SITRANS FUE950
12 Operating Instructions, 05/2011, A5E03424739-01
CE-marked equipment
The CE mark symbolizes the compliance of the device with the following directives:
● EMC directive 2004/108/EC
● Low voltage directive 2006/95/EC
● R&TTE directive 1999/5/EC
● MID directive 2004/22/EC
Standards and regulations
The requirements for heat meters and peripheral equipment (calculators, temperature
sensors, flowmeters) are defined by EN 1434. Not only does it include all the requirements
for measurement but also, in part 6, regulations and recommendations for installation and
operation.
Heat meter systems used for custody transfer are subject to legal calibration. Peripheral
equipment used in the measurement points subject to verification must be dismounted after
typically five years (depending on local regulations) and verified again by an authorized
verification center.
The metrological aspect of recalibration includes the use of predefined error limits. In
practice, this means that attention must be paid to the installation and assembly of the heat
measurement points so that the assembly and disassembly of all components of the
measurement points can be carried out quickly and efficiently at all times.
2.3 Lithium batteries
Lithium batteries are primary power sources with high energy content designed to represent
the highest possible degree of safety.
WARNING
Potential hazard
Lithium batteries may present a potential hazard if they are abused electrically or
mechanically.
•Observe the following precautions when handling and using lithium batteries:
– Do not short-circuit, recharge or connect with false polarity.
– Do not expose to temperature beyond the specified temperature range or incinerate
the battery.
– Do not crush, puncture or open cells or disassemble battery packs.
– Do not weld or solder to the battery’s body.
– Do not expose contents to water.

Safety notes
2.4 General requirements
SITRANS FUE950
Operating Instructions, 05/2011, A5E03424739-01 13
2.4 General requirements
The label seal on the calculator, see "Sealing" (Page 51), must not be damaged!
A damaged seal will result in immediate invalidation of the factory warranty and calibration.
Siemens accepts no liability for amendment of legal metrological data if the seal has been
broken.
The cables supplied with the calculator must not be shortened or altered in any other way.
Note
All regulations on the use of the calculator must be observed!
All regulations on electrical installations must be observed!
All instructions listed in the data sheet of the calculator must be observed.
The device is pre/programmed for water as the measuring medium (or - as special option -
for glycol additive) with specified consistence.
Note
Calibration/verification
SITRANS FUE950 is an MID-approved calorific energy meter ready for verification in
accordance with the European standard EN 1434.
Calibration marks on the calculator must not be damaged or removed! Their removal
invalidates the warranty and the calibration of the meter. The label seals may only be
removed by authorized persons for servicing purposes and must then be renewed.
Note
Personnel qualifications - particularly important for mains-powered versions
Device installation is only to be performed by personnel qualified to handle electrical devices
of at least low voltage (up to 1000 V).

Safety notes
2.4 General requirements
SITRANS FUE950
14 Operating Instructions, 05/2011, A5E03424739-01
Disconnecting device
A switch or circuit-breaker (min. 1 A) shall be included in the building installation for mains-
powered versions. It shall be in close proximity to the equipment and within easy reach of the
operator. It shall be marked as the disconnecting device for the equipment. Before removing
the inner plastic cover, the mains power shall be switched off. After installing the main power
cable, the protection cover has to be installed with the two screws.
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SITRANS FUE950
Operating Instructions, 05/2011, A5E03424739-01 15
Description 3
3.1 General description
SITRANS FUE950 is a universal thermal energy calculator that meets the requirements of
EN 1434 and has the MID approval for heat metering. For cooling the SITRANS FUE950 has
the national German approval according to the PTB K7.2 standard.
The SITRANS FUE950 energy calculator has been developed for Siemens Flow Instruments
and is applicable with the following flowmeter types:
● SITRANS FUS380/FUE380
● SITRANS F M MAG 5000/6000
● SITRANS F M MAG 8000
Typically, the device is used with the SITRANS F US flowmeter programme for energy
custody transfer in district and central heating systems, in which the medium is water with
temperatures up to 190 °C, or with the SITRANS F M flowmeter programme in cooling
systems using water as coolant.
The energy calculator is modular in construction and can be fitted with optional modules
depending on the application.
Temperature sensors
Temperature sensors are one of the integral components of every thermal energy meter in
heating or cooling applications. They are used for determining temperature changes in fluids
due to energy released from or supplied to the loop. The temperature is measured by
mounting temperature sensors upstream and downstream from the point where the
exchange in the thermal energy of the system occurs. The temperature sensors can be used
in applications with pipe diameters from approximately DN 50 and upwards. They have good
thermal properties with low heat radiation and must always be used with related sensor
pockets (typically ordered together with the temperature sensor pair).
For further information on temperature measurement, see appendix (Page 75).

Description
3.2 Measuring principle
SITRANS FUE950
16 Operating Instructions, 05/2011, A5E03424739-01
3.2 Measuring principle
Energy calculation
The calculation of energy is based on the following formula:
Energy = Volume x (TH - TC) x K-factor(Ti)
● Volume: Volume of a given number of volume pulses from the flow meter
● TH: Measured temperature in the hot pipe
● TC: Measured temperature in the cold pipe
● K-factor (Ti): Thermal coefficient of media enthalpy and heat content
The energy calculation is made by a counter and depends on temperature difference, pulse
input frequency and local legal requirements.
The calculator always carries out at least one energy calculation every 2 sec. (mains-
powered version; battery-powered version: 4 sec.). If the connected flowmeter has not sent
enough pulses, the energy calculation and the flow indication is also based on the 2 sec. (4
sec.) value.

Description
3.3 Applications
SITRANS FUE950
Operating Instructions, 05/2011, A5E03424739-01 17
3.3 Applications
Heating and cooling applications
The SITRANS FUE950 is able to perform energy calculation in three kinds of applications:
● District heating applications
Figure 3-1 District heating applications with the flowmeter in the cold pipe
● Chilled water applications
Figure 3-2 Chilled water applications with the flowmeter in hot pipe
● Combined cooling/heating applications
Figure 3-3 Combined cooling/heating applications with the flowmeter in the cold pipe (heating)

Description
3.4 Design
SITRANS FUE950
18 Operating Instructions, 05/2011, A5E03424739-01
The separate flowmeter for the input of volume pulse can be installed in the hot or the cold
pipe.
The hot pipe is the pipe with the higher media temperature. In heating systems called
forward line and in cooling systems the return line..
The cold pipe is the pipe with the lower media temperature. In heating systems called return
line and in cooling systems the forward line.
3.4 Design
Display and push button
The SITRANS FUE950 has an easy-read 8-digit LCD display with associated pictograms for
various functions.
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
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1 IrDA optical interface
2 LCD display
3 Area with laser markings on nameplate
4 Push button
Figure 3-4 SITRANS FUE950
The energy calculator has a SIMPLE OPERATION push button and provides user-friendly
control of the various display menu loops.
The display and the menu loops will always be configured for a specific application, and for
the selected display settings. In the normal operation menu loop, the display will show
accumulated energy and volume as well as the actual flow and temperature values.
The energy calculator has an IP54 polyamide housing designed for wall or panel mounting.
The housing comes with prepared rubber gaskets cable entries for fast and easy installation.