Siemens SITRANS FUS1020 User manual

sitrans
Field Manual SITRANS FUS1020 NEMA-4/IP 65 Clamp-On Transit-Time Flowmeter
SITRANS FUS
1020NFM-1D

Siemens Energy & Automation’s Standard Warranty
This warranty applies to flow metering and leak detection systems.
SIEMENS ENERGY & AUTOMATION CORPORATION (the Company) warrants to the original
purchaser of this equipment as presented in Section 1 of Siemens Energy & Automation, Inc.
Standard Terms and Conditions of Sale (10/1/2004).
To obtain repair or replacement within the terms of this Warranty, a Return MerchandiseAuthorization
number (RMA) must be obtained from Technical Service by calling [phone] prior to shipment.
This RMA number must appear prominently on the outside of all returned packages. Returned
merchandise must include packing slip with specification of defect(s) and be shipped freight prepaid,
directlyto Siemens Energy &Automation Corporation, 155 PlantAvenue, Hauppauge, NY 11788.
Equipment or material returned for Certification, Validation, Repair, or Replacement may result in the
loss of memorized pipe site date in equipment computer memory. Siemens Energy &Automation can
saveand then restore thisdata for some NEMAtype systems andall Portable systems, ifrequested at
the time of equipment return. A fee may be imposed for this service.
This Warranty does not extend to costs incurred for removal or reinstallation of the equipment, or to
damage to equipment, accessories or components caused by such removal or reinstallation.
This Warranty does not apply to any equipment or part thereof, which in the opinion of the Company
has been damaged through alteration, improper installation, mishandling, misuse, neglect, lightning
strike,or other accidents. THEEXTENTOFTHE COMPANY’S LIABILITYUNDERTHIS WARRANTY
IS LIMITEDTO THE REPAIR OR REPLACEMENT PROVIDEDABOVEAND, IN NO EVENT, SHALL
THE COMPANY’S LIABILITY EXCEED THE PURCHASE PRICE PAID BY PURCHASER FOR THE
PRODUCT.
This Warranty is in lieu of all other express warranties or liabilities. ANY IMPLIED WARRANTIES,
INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR USE ARE
HEREBYEXCLUDED. INNO CASESHALLTHECOMPANYBE LIABLEFORANYCONSEQUENTIAL
OR INCIDENTALDAMAGES FOR BREACH OF THIS ORANY OTHER WARRANTY, EXPRESS OR
IMPLIED, WHATSOEVER. No person or representative is authorized to assume for the Company
any liability other than expressed herein in connection with the sale of this equipment.

Manual Changes
NOTE: For the latest updates and revisions to this field manual go to
www.controlotron.com/downloads.htm and check the Product Manual listing.

1020NFM-1D
Table Of Contents
Section 1
1. Introduction To The FUS1020 NEMA-4 Flowmeter ............................................ 1-1
1.1 System Hardware Description ............................................................................. 1-1
1.2 Introduction To The FUS1020 Operating System .............................................. 1-1
1.2.1 Installation Menu Overview................................................................................. 1-2
1.2.2 Overview Of Real-Time Data Collection ............................................................ 1-2
1.2.3 Standard Features ................................................................................................ 1-2
IntegralDatalogger.......................................................................................... 1-3
Analog Outputs ............................................................................................... 1-3
Performance Specifications (Example for typical 6-inch pipe)........................ 1-3
Mechanical, Electrical, Environment and Safety Specifications...................... 1-4
1.3 Description Of Channel Functions (FUS1020DN Systems only)...................... 1-5
Dual Channel Flow ......................................................................................... 1-5
Dual Path Flow ............................................................................................... 1-5
Channel 1+2 Flow........................................................................................... 1-5
Channel 1-2 Flow............................................................................................ 1-6
1.4 Clamp-On Transit-Time Theory Of Operation.................................................... 1-6
Wide Beam Tramsmission............................................................................. 1-7
Flow Calibration Factor................................................................................... 1-8
Section 2
2. Getting Started...................................................................................................... 2-1
2.1 Important Safety Considerations......................................................................... 2-1
2.2 Power Connections .............................................................................................. 2-1
2.2.1 Input Power Connector (P1) And Fuse (F1) Locations...................................... 2-1
2.2.2 Power Supply Wiring............................................................................................. 2-2
2.3 The Menu Lockout Switch ................................................................................... 2-3
2.4 Flowmeter Installation Summary.......................................................................... 2-3
Flowmeter Installation Flow Chart................................................................... 2-4
1020 Interconnection Diagram........................................................................ 2-5
2.5 Choosing A Programming Interface..................................................................... 2-6
2.5.1 Overview Of The 5-Key Touch KeyPad.............................................................. 2-6
2.5.2 Overview Of The RS-232 Interface..................................................................... 2-6
2.6 Installation Menu Operation With The KeyPad.................................................. 2-7
2.6.1 Accessing And Leaving The Installation Menu.................................................. 2-7
2.6.2 System 1020 Installation Menu Structure ........................................................... 2-8
InstallationMenuStructure.............................................................................. 2-8
2.6.3 How To Use The KeyPad To Enter Data............................................................2-11
How To Select Items FromAn Option List .....................................................2-11
A Note On Multiple Select Option Lists ......................................................... 2-12
How To Enter Numeric Data ......................................................................... 2-12
How To Enter Alphanumeric Strings.............................................................. 2-14
2.7 How To Use The RS-232 Interface .................................................................... 2-15
2.7.1 The RS-232 Interface Cable............................................................................... 2-15
2.7.2 Establishing Communications Using HyperTerminal ...................................... 2-15
2.7.3 Accessing The Installation Menu ...................................................................... 2-17
Data Display Mode........................................................................................ 2-18
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2.7.4 Data Entry Using The RS-232 Interface ............................................................ 2-18
Accessing and Leaving The Installation Menu .............................................. 2-18
2.7.5 Navigating Through The Installation Menu ..................................................... 2-19
2.7.6 Introduction To The 1020 Menu Screens ......................................................... 2-20
Typical 1020 InstallationMenu Screen .......................................................... 2-20
ExplanationsOf Installation MenuCallouts ................................................... 2-20
2.8 Data Entry Procedures Using The RS-232 Interface....................................... 2-21
2.8.1 Entering Alphanumeric Strings.......................................................................... 2-21
2.8.2 Selecting Items From An Option List................................................................. 2-22
Multiple Select Option Lists........................................................................... 2-24
2.8.3 Entering Numeric Data ....................................................................................... 2-24
2.9 How To Set Up A Channel For Transit-Time Operation .................................. 2-25
2.9.1 How To Access The Channel Setup Menu And Create A Site ........................ 2-25
2.9.2 How To Enter Pipe Data ..................................................................................... 2-26
2.9.3 How To Select A Liquid Type.............................................................................. 2-27
2.9.4 How To Manually Select Transducers And A Mounting Mode ........................ 2-28
Installing The Transducers............................................................................ 2-30
Setting The Zero Flow Level ......................................................................... 2-32
Performing TheActual Zero Routine............................................................. 2-32
Using The ReversaMatic Routine ................................................................. 2-34
Section 3
3. Hardware Installation Guide ................................................................................ 3-1
3.1 Mounting The 1020 Flow Computer .................................................................... 3-1
3.2 Input/Output Wiring............................................................................................... 3-2
3.2.1 1020N Input/Output Wiring (TB1 and TB2) ......................................................... 3-2
3.2.2 1020DN Input/Output Wiring (TB1 and TB2) ...................................................... 3-3
3.3 Preparing To Mount The Transducers ............................................................... 3-4
3.3.1 How To Indentify 1021 Transducers and Mounting Hardware ......................... 3-4
3.3.2 Selecting A Location For Clamp-On Transducers ............................................. 3-4
3.3.3 Clamp-On Transducer Mounting Modes ........................................................... 3-5
3.3.4 Preparing The Pipe............................................................................................... 3-6
3.3.5 Sonic Coupling Compound Recommendations................................................. 3-7
3.4 Reflect Mode Transducer Installation ................................................................ 3-8
3.4.1 Dual Mounting Track Assembly/Transducer Installation ................................... 3-8
3.4.2 Dual Mounting Track Assembly/Transducer Installation For Dual Channel
Integrated 1020 Flowmeter................................................................................. 3-12
3.4.3 Single Mounting Track Assembly/Transducer Installation.............................. 3-13
3.4.4 Single Mounting Track Assembly/Transducer Installation For Single Channel
Integrated 1020 Flowmeter................................................................................. 3-16
3.5 Direct Mode Transducer Installation ................................................................ 3-19
3.5.1 Dual Mounting Track Assembly/Transducer Installation ................................. 3-19
3.5.2 Dual Mounting Track Assembly/Transducer Installation For Dual Channel
Integrated 1020 Flowmeter................................................................................. 3-26
3.6 1011 Universal Trasducer Installation............................................................... 3-27
3.6.1 How To Identify 1011 Transducers And Mounting Hardware.......................... 3-27
3.6.2 Reflect Mode - Mounting Frames And Spacer Bar .......................................... 3-27
3.6.3 Reflect Mode With Spacer Bar Only ................................................................. 3-29
3.6.4 Direct Mode - Mounting Frames, Spacer Bar And Mounting Guides ............ 3-30

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Sect./Page
3.6.5 Using 1012T Mounting Tracks ........................................................................... 3-35
Installing a 1012TMounting Track in Reflect Mode ....................................... 3-35
Installing a 1012TMounting Track in Direct Mode ......................................... 3-37
Section 4
4. Operating System 1020 With Flow Tubes ........................................................... 4-1
4.1 General Installation Guidelines........................................................................... 4-1
4.1.1 LiquidApplicabilityAnd Compatibility.................................................................. 4-1
4.1.2 Selecting The Correct Flow Tube ....................................................................... 4-2
4.1.3 Flow Tube Mounting Location ............................................................................. 4-2
4.1.4 Flow Data Scatter And Damping .......................................................................... 4-3
4.2 Considerations For Critical Applications ............................................................ 4-3
To Obtain Technical Information...................................................................... 4-3
4.3 How To Set Up System 1020 for Flow Tube Operation ..................................... 4-4
4.3.1 Overview................................................................................................................ 4-4
4.3.2 Setup Procedure................................................................................................... 4-4
4.4 Specifications - CPVC Flow Tube........................................................................ 4-9
4.5 Specifications - KYNAR PVDF Flow Tube .......................................................... 4-9
4.6 Specifications - TEFLON PFA Flow Tube ......................................................... 4-10
4.7 Specifications - 316 Stainless Steel Flow Tube............................................... 4-10
AdditionalInstallation Notes ...........................................................................4-11
Section 5
5. System 1020Application Notes ............................................................................ 5-1
5.1 To Obtain Technical Assistance .......................................................................... 5-1
5.2 Considerations For Critical Applications ............................................................ 5-1
5.3 Pipe Considerations For Critical Applications ................................................... 5-2
5.3.1 Pipe Dimensions ................................................................................................... 5-2
5.3.2 Picking The Appropriate Transducer .................................................................. 5-2
5.3.3 Flow Velocity Range .............................................................................................. 5-2
5.3.4 Overview of System Performance ...................................................................... 5-2
5.3.5 Accuracy ................................................................................................................. 5-3
5.3.6 Repeatability .......................................................................................................... 5-3
5.3.7 Data Stability .......................................................................................................... 5-3
Data Scatter.................................................................................................... 5-3
Data Drift ........................................................................................................ 5-3
5.4 Flow Conditions..................................................................................................... 5-4
5.4.1 Low Flow Rates ..................................................................................................... 5-4
5.4.2 Flow Data Scatter and Damping .......................................................................... 5-4
System 1020 Damping and Slewing Controls ................................................ 5-4
TimeAverage .................................................................................................. 5-4
SmartSlew ...................................................................................................... 5-4
5.4.3 Notes On Liquid Conditions ................................................................................ 5-5
5.4.4 Erroneous Liquid Parameter Specification........................................................ 5-5
5.4.5 Liquid Compatibility .............................................................................................. 5-5
5.4.6 Aeration .................................................................................................................. 5-5
5.4.7 Slurries................................................................................................................... 5-6
5.4.8 Two-Phase Liquids................................................................................................ 5-6
5.4.9 Viscous Liquids ..................................................................................................... 5-6
5.4.10 Temperature and Pressure Ratings.................................................................... 5-6

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5.5 Overview Of System 1020 Memory Resources ................................................. 5-6
5.6 Reference Tables.................................................................................................. 5-7
Sonic Velocity (m/s) for Common Liquids @ 68ºF.......................................... 5-7
Sonic Velocity for Pure Water @ Various Temperatures (m/s) ....................... 5-7
Vps Values (in inches/second) For Some Common Metals ........................... 5-8
Sonic Velocity Of Pure Water Relative To Temperature.................................. 5-9
System 1020 Reynolds Compensation Factor............................................. 5-10
Terminology Chart..........................................................................................5-11
5.7 The NEMA Dual-Channel Menu Chart .............................................................. 5-13
TheMeterTypeMenu.................................................................................... 5-13
TheMeter Facilities Menu ............................................................................. 5-13
The Clamp-On Menu .................................................................................... 5-14
Section 6
6. The 1020 Installation Menu .................................................................................. 6-1
GeneralInstallation MenuNotes...................................................................... 6-1
6.1 The Channel Setup Menu .................................................................................... 6-2
6.1.1 How To Recall A Site Setup.................................................................................. 6-2
6.1.2 How To Enable And Disable A Measurement Channel ...................................... 6-3
6.1.3 How To Create/Name A Site Setup ...................................................................... 6-4
6.1.4 How To Enable/Disable Site Security ................................................................. 6-4
6.1.5 How To Delete A Site Setup ................................................................................. 6-5
6.1.6 How To Save/Rename A Site Setup..................................................................... 6-5
6.2 The Pipe Data Menu ............................................................................................. 6-6
Pipe Data Menu Structure ............................................................................... 6-7
6.2.1 How To Select A Pipe Class ................................................................................. 6-8
6.2.2 How To Select A Pipe Size ................................................................................... 6-8
6.2.3 How To Enter The Pipe OD (in. or mm) .............................................................. 6-9
6.2.4 How To Select A Pipe Material ............................................................................. 6-9
6.2.5 How To Enter The Wall Thickness ...................................................................... 6-9
6.2.6 Liner Material ...................................................................................................... 6-10
6.2.7 Liner Thickness................................................................................................... 6-10
6.3 The Application Data Menu ................................................................................ 6-10
Application Data Menu Structure....................................................................6-11
6.3.1 How To Select A Liquid Class ............................................................................ 6-12
How to Edit the Estimated Vs (liquid sonic velocity) ..................................... 6-12
How to Edit the Viscosity (cS) Setting .......................................................... 6-13
How to Edit the Density (SG) Setting............................................................ 6-13
6.3.2 Pipe Temperature Range ................................................................................... 6-14
6.3.3 Pipe Configuration .............................................................................................. 6-14
Pipe Configuration Menu Structure ............................................................... 6-15
Pipe Configuration Option List Definitions..................................................... 6-15
6.4 The Pick/Install XDCR Menu.............................................................................. 6-16
Pick/Install Xdcr Menu Structure ................................................................... 6-17
6.4.1 How To Select A Transducer Model .................................................................. 6-17
6.4.2 How To Select A Transducer Size ..................................................................... 6-18
6.4.3 How To Select A XDCR Mount Mode ................................................................ 6-18
6.4.4 Reviewing The Spacing Method ....................................................................... 6-19
6.4.5 How To Use The Spacing Offset ....................................................................... 6-19
6.4.6 The Number Index Menu Cell............................................................................ 6-19

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6.4.7 The Ltn Menu Cell .............................................................................................. 6-20
6.4.8 How To Use [Install Complete?] ........................................................................ 6-20
Force Transmit Procedure............................................................................ 6-21
6.4.9 The Empty Pipe Set Menu.................................................................................. 6-24
How to Use theActual MTY Command......................................................... 6-24
How to Use the MTYmatic Command .......................................................... 6-25
How to Use the Set Empty Command.......................................................... 6-25
6.4.10 Zero Flow Adjust Menu ....................................................................................... 6-26
AutoZero ....................................................................................................... 6-26
ActualZero.................................................................................................... 6-26
ReversaMatic................................................................................................ 6-26
ZeroMatic(description) ................................................................................. 6-26
UsingActual Zero .......................................................................................... 6-27
UsingReversaMatic...................................................................................... 6-27
ZeroMatic(optional function) ......................................................................... 6-28
6.5 The Operation Adjust Menu............................................................................... 6-30
OperationAdjust Menu Structure .................................................................. 6-30
6.5.1 Damping Control ................................................................................................. 6-31
6.5.2 Deadband Control ............................................................................................... 6-31
6.5.3 Memory/Fault Set ................................................................................................ 6-32
Memory Delay (sec) ..................................................................................... 6-32
6.6 The Flow/Total Units Menu ................................................................................ 6-32
Totalizer Controls .......................................................................................... 6-33
The Flow/Total Units Menu Structure ............................................................ 6-34
6.6.1 Flow Volume Units ............................................................................................... 6-35
6.6.2 Flow Time Units................................................................................................... 6-35
6.6.3 Flow Display Range............................................................................................. 6-36
6.6.4 Flow Display Scale .............................................................................................. 6-36
6.6.5 Total Volume Units .............................................................................................. 6-36
6.6.6 Totalizer Scale..................................................................................................... 6-37
6.6.7 Total Resolution .................................................................................................. 6-37
6.6.8 Totalizer Mode .................................................................................................... 6-38
6.6.9 Batch/Sample Total ............................................................................................. 6-38
6.6.10 Reset Totalizer .................................................................................................... 6-38
6.7 The Data Span/Set/Cal Menu............................................................................. 6-38
The Data Span/Set/Cal Menu Structure ........................................................ 6-39
6.7.1 Span Data............................................................................................................. 6-39
PGEN............................................................................................................ 6-40
MaxFlow....................................................................................................... 6-41
MinFlow........................................................................................................ 6-41
Max Vs m/s ................................................................................................... 6-41
Min Vs m/s .................................................................................................... 6-41
6.7.2 Set Alarm Levels.................................................................................................. 6-42
Hi Flow .......................................................................................................... 6-42
Low Flow ...................................................................................................... 6-42
Interface Vs (m/s) meters-per-second ......................................................... 6-42
Aeration% .................................................................................................... 6-43
MakeupLatch................................................................................................ 6-43
6.7.3 Calibrate Flowrate............................................................................................... 6-44

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Sect./Page
Kc Calibration ............................................................................................... 6-44
MultiPointCalibration..................................................................................... 6-44
6.8 The Datalogger Setup Menu ............................................................................. 6-46
The Datalogger Setup Menu Structure.......................................................... 6-47
6.8.1 Datalogger Mode................................................................................................. 6-48
6.8.2 Datalogger Data................................................................................................... 6-48
Alarm Letter Codes And Descriptions........................................................... 6-48
6.8.3 Log Time Interval ................................................................................................ 6-49
6.8.4 Datalogger Events .............................................................................................. 6-49
6.9 The I/O Data Control Menu ................................................................................ 6-50
The I/O Data Control Menu Structure............................................................ 6-51
6.9.1 Analog Output Setup .......................................................................................... 6-51
System 1020 Analog Outputs ....................................................................... 6-51
Analog Out Setup Data Categories............................................................... 6-51
Assigning Io Output Functions ...................................................................... 6-51
6.9.2 Relay Setup.......................................................................................................... 6-52
Assigning Relay 1 Functions ........................................................................ 6-52
Relay 1 Option List ....................................................................................... 6-52
6.10 The Meter Facilities Menu ................................................................................. 6-53
6.10.1 Preferred Units.................................................................................................... 6-54
6.10.2 The Table Setups Menu ..................................................................................... 6-54
PipeTable ..................................................................................................... 6-54
Pipe Table Menu Structure ............................................................................ 6-55
Create/Edit Pipe............................................................................................ 6-56
Delete Pipe ................................................................................................... 6-57
6.10.3 Transducer Type Menu ...................................................................................... 6-57
Transducer Type Menu Structure.................................................................. 6-58
6.10.4 The Datalogger Control Menu........................................................................... 6-58
Datalogger Control Menu Structure............................................................... 6-59
Output Datalogger ........................................................................................ 6-59
Circular Memory ........................................................................................... 6-59
Est Log Time Left.......................................................................................... 6-60
Clear Datalogger........................................................................................... 6-60
6.10.5 The Memory Control Menu ................................................................................ 6-60
6.10.6 The Analog Output Trim Menu........................................................................... 6-61
Analog Output Trim Menu Structure.............................................................. 6-61
Current Output Trim (Io1 & Io2)..................................................................... 6-61
PGEN Output Trim (Single Channel models only) ........................................ 6-61
6.10.7 The Clock Set Menu ........................................................................................... 6-62
Clock Set Menu Structure ............................................................................. 6-62
Date .............................................................................................................. 6-62
Time.............................................................................................................. 6-62
6.10.8 RS-232 Setup ....................................................................................................... 6-63
RS-232 Setup Menu Structure ...................................................................... 6-63
Baud Rate..................................................................................................... 6-63
Parity............................................................................................................. 6-64
Data Bits ....................................................................................................... 6-64
Line Feed ...................................................................................................... 6-64
NetworkID .................................................................................................... 6-65

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RTS Key Time .............................................................................................. 6-65
6.10.9 System Info .......................................................................................................... 6-66
System Info Menu Structure.......................................................................... 6-66
6.10.10 Data Display Screen............................................................................................ 6-66
ActivatingTheDisplay................................................................................... 6-66
Selecting Display Data Items........................................................................ 6-67
Section 7
7. The Diagnostic Data Menu................................................................................... 7-1
Diagnostic Data Menu Structure ..................................................................... 7-1
7.1 Main Diagnostics Screen ..................................................................................... 7-2
Diagnostic Main Menu Description.................................................................. 7-2
7.2 Flow Data Menu..................................................................................................... 7-2
Flow Data Menu Items .................................................................................... 7-3
Vs m/s ............................................................................................................ 7-4
HiFlow and LoFlow ......................................................................................... 7-4
AnCal .............................................................................................................. 7-4
7.3 The Application Info Menu .................................................................................. 7-5
ApplicationInfo MenuItems ............................................................................ 7-5
7.4 The Liquid Data Menu .......................................................................................... 7-5
Liquid Data Menu Items .................................................................................. 7-6
7.5 The Site Setup Data Menu................................................................................... 7-6
Site Setup Menu Items.................................................................................... 7-6
Introductionto [HF] MenuItem ........................................................................ 7-7
Using the [HF] Menu Item................................................................................ 7-7
“Manual”Adjustment Procedure...................................................................... 7-8
“Automatic” Adjustment Procedure................................................................. 7-9
7.6 The Test Facilities Menu.................................................................................... 7-10
Test Facilities Commands ............................................................................ 7-10
Makeup ......................................................................................................... 7-10
7.7 Troubleshooting Tips ..........................................................................................7-11
Flow Computer Messages.............................................................................7-11
7.8 Using The 1020 Reset Sequence...................................................................... 7-13
7.8.1 System Reset Using The KeyPad...................................................................... 7-13
7.8.2 System Reset Using The RS-232 Interface ...................................................... 7-14
APPENDICES
AppendixA Engineering Drawings .............................................................................. A-1
Appendix B Site Setup Considerations For 1010/1020N Blind Systems ..................B-1
INDEX
Pipe Table

1-1
1020NFM-1D
Section 1
1. INTRODUCTION TO THE FUS1020 NEMA TYPE 4 FLOWMETER
Congratulationson purchasingthe SitransFUS1020 NEMAType4 flowmeter.The FUS1020flowmeter
utilizesa compactintegrated design technologyyet iseasy toinstall and operate.It willnot takelong for
you to appreciate its unmatched performance and its many features such as our unique enhanced
transit-time MultiPulse technology and full Wide-Beam transducer operation mode.
FUS1020 is a compact NEMAType 4/IP 65 transit-time flow computer. Functionally, it operates as a
stand-alone flowmeter using conventional clamp-on transducers or in-line flow tubes. This product is
intended for use in ordinary, non-hazardous locations.
The FUS1020 is available in the following configurations:
zFUS1020DN Dual Channel Remote Wall-Mounted Flow Display Computer/Transmitter
zFUS1020N Single Channel Remote Wall-Mounted Flow Display Computer/Transmitter
zFUS1020N Integral Single Channel Flow Display Computer/Transmitter
1.1 SYSTEM HARDWARE DESCRIPTION
FUS1020is housed insidea NEMAType 4steel, epoxypaintedcase that containsthemain electronics
and the Touch Keypad User Interface. The Keypad enclosure cover includes a 2 x 16 character LCD
Alphanumeric Display viewable through a plastic window. Removing this cover provides access to I/O
terminal blocks (TB1 and TB2), RS-232 Serial Connector J1, and System Lockout Switch S1. Remov-
ing the Power enclosure cover provides access to fused power input connector P1 (100-240 VAC or 9-
36 Vdc), fuse F1 and jumper JP1. The primary instrumentation output is a loop powered isolated 4-20
mA current.
NOTE: For continued safety protection of the Model FUS1020, in accordance with UL/Listing,
the supply mains branch circuit must be limited to a maximum of 20Aby circuit breaker.
The FUS1020 flowmeter provides for an RS-232 remote access I/O port via a DB-9 connector, an
assignable optically isolated status (relay) output, a second 4-20 mAAnalog Output and two “F” con-
nectors for track or remote mount transducer cabling. The FUS1020 single channel version also pro-
vides an optically isolated high resolution/high stability digital synthesized pulse generator output.
Transducer mounting assembly options include (refer toAppendix Afor details):
zTrackless spacer bar-stainless steel strap mount
zMounting Track for Integrated FUS1020N Flow Display Computer/Transmitter and transducer
mounting track
zMounting Track for Remote FUS1020N/DN computer
1.2 INTRODUCTION TO THE FUS1020 OPERATING SYSTEM
The FUS1020 software resides on Flash ROM chips. Software upgrades are available from our Tech-
nicalServices Group (1800-275-8480).AllFUS1020 models providea ready referenceto thesoftware
version and modification code.Additionally, a check-sum assures that the software code has retained
its original integrity. The operating system consists of real-time data collection and meter control algo-
rithms and an Installation Menu interface for easy data entry.

1-2
1020NFM-1DSection 1
1.2.1 INSTALLATION MENU OVERVIEW
For all FUS1020 models, site set up is accomplished under the control of an Installation Menu. The
Installation Menu presents all the site setup options consistent with the meter type installed. In other
words, the Installation Menu changes to be compatible with the particular meter type selected at the
“top” menu level.
The Installation Menu sequentially presents choices in related groups of information (such as Pipe
Data, Datalogger Setup, etc.). This menu structure makes it easy to locate any category that is rel-
evant to the application. Most Installation Menu items are pre-set to default values based on a factory
template. Because of these defaults, few steps are required to complete the usual site setup:
zCreate a site setup
zEnter the pipe outer diameter
zEnter the pipe wall thickness
zSelect a transducer type and size
zAfter mounting the transducers on the pipe, complete the Xdcr Install procedure
zSave the site setup, if so desired, by providing a unique file name
In addition, the operating system allows the factory template to be customized so as to suit user
preferences. This feature is particularly advantageous for users who may need to routinely re-install
the system at different locations within a facility. The system includes a comprehensive Diagnostic
Menu that provides real-time flow and related data, information on current operating conditions, plus
system test and recovery routines.
Pleasenote that you canreview site parameters atany time with littledanger of altering thedata, since
you would have to perform specific keystrokes to affect a change. The meter allows a site data dump,
either to a printer to obtain hard copy, or to a PC for storage as a data file. Retaining a copy of the site
setup is particularly important for flow calibrated systems.
1.2.2 OVERVIEW OF REAL-TIME DATA COLLECTION
Real-time operation commences after the completion of the site setup procedure. The real-time oper-
ating software’s function is to collect the primary measurement data from the transducer system and
FUS1020 is a multitasking, multifunction system, all necessary operations are interleaved to guaran-
tee the fastest operation and greatest real-time data density.
InstallationMenu choices governthe functionality ofthe real-timeoperating system. Forexample, data
will be reported either in data units selected by the installer during the site setup or default units, if the
installer chose not to edit that menu choice. You can access the Installation Menu at any time to
change the selected flow rate units. Note that changing primary site setup data like the pipe outer
diameter (OD) or the transducer model will invalidate the site setup, thus requiring a reinstallation.
1.2.3 STANDARD FEATURES
zSimilar features as in the 1010X family of flowmeters yet compact, integral design eliminates
running sensor cabling.
zBidirectional flow measurement up to 50 ft/sec (15 m/s) with active zero.
zAccurate operation on any pipe material from 1/2” to 360” (12 to 9150mm) diameter.

1-3
1020NFM-1D
Section 1
zz
zz
zFlexiblesetup optionsusing either thetouch panelkeypad sensorsor a PC/laptopconnected to
the RS-232 port.
zIntegral 2x16 Character LCD panel display shows real-time data and Installation Menu for key-
pad input or RS-232 remote programming.
zFlexiblemounting: Integraland/or Remote -either onpipe orlocated upto 300 feet(100m) from
the transducers. For distances greater then 300 feet (up to 1000 ft), please contact Siemens
Customer Service.
zMenu Lockout Switch prevents unauthorized access to site setup data.
zWide-Band pipe matching provides high performance and stability for Steel pipes.
zZeroMatic Path sets Zero flow compensation without stopping flow; eliminates zero drift.
Integral Datalogger
FUS1020 provides an integral Datalogger that records user-assigned data at a programmable log
interval for later retrieval. Data reports can be transmitted via the RS-232 port to either a serial printer
for hard copy, or to a PC/laptop computer where the report format is comma-delimited ASCII text to
facilitate its import to spreadsheet or database software.
Analog Outputs
zLoop powered isolated current varies from 4-20 mA in proportion to any user-selected data
function.
zDigital PGEN output pulse function allows user assigned PGEN digital signal pulses per unit of
volume.
zBuffered open collector relay trigger output provides logic levels for response to user-assigned
alarm functions.
Accuracy +/- 2.0% of rate, or better
BatchRepeatability +/- 0.1%
Flow Range +/- 40 ft/sec, (+/- 12 m/s) including zero flow, bi-directional
FlowSensitivity 0.001 ft/sec, (0.0003 m/s) flow rate independent
ZeroDrift 0.01% ft/sec or better with ZeroMaticPath active
Data Refresh Rate 3 Hz
TimeAveraged Response Rate 1 to 60 seconds
Performance Specifications (Example for typical 6-inch pipe)

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1020NFM-1DSection 1
Mechanical, Electrical, Environment and Safety Specifications
Weight 4.0 lbs / 1.82 kg
Dimensions inches: 7.77 W x 4.06 H x 4.30 D
millimeters: 197 W x 103 H x109 D
Cover Screw Torque min,. 12 oz-in, max. 15 oz-in
min. 864 g-cm, max. 1080 g-cm
Power AC Units: 100-240 VAC @ 12 VA 50-60 Hz
DC Units: 9-36 Vdc @ 12 Watts
Fuse F1 2A, quick-acting, 5mm x 20mm, UL/CSA Listed
Operating Temperature Range 41oF to 104oC
5oC to 40oC
Storage Temperature Range -40oF to 160oF
-40oC to 71oC
OperatingAltitude Range up to 6,563 ft
up to 2,000 m
TransportAltitude -2,000 ft to 40,000 ft
-609 m to 12,192 m
Humidity 80% up to 87.8oF decreasing linearly to 50% at 104oF
80% up to 31oC decreasing linearly to 50% at 40oC
Service Rating Indoor/Outdoor use; NEMA Type 4, IP65
Safety ULListed and ULcListed to Canadian Safety Standards,
UL61010-1,File E304857
Pollution Degree 2
CatII

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1020NFM-1D
Section 1
1.3 DESCRIPTION OF CHANNEL FUNCTIONS (FUS1010DN Systems only)
Dual Path FUS1020DN systems provide two flow measurement channels that allow its operation as
two completely independent single-channel flow meters. In addition, you can combine the two mea-
surement channels in the various meter types described below to enhance the functionality of the
system. On single channel systems, you do not get a choice of meter types since this requires two
independent measurement channels.
Dual Path Flow
Dual Path Flow uses two measurement channels to achieve a single output via a “virtual” third chan-
nel. The resultant data is the average of the two channels. This meter type only supports clamp-on or
in-linetransit-time operation. Benefitsinclude highestavailable precision andenhanced immunityfrom
distorted flow profile conditions.
Virtual
Channel
3
Channel1
Flow
Channel2
Flow
Ch1 + Ch2
2Output
(average of
Ch 1 & Ch 2)
Pipe
Dual Channel Flow
Dual Channel Flow provides two independent measurement channels that operate simultaneously.
Channel 1
Flow
Channel 2
Flow
PIPE `A'
PIPE `B'
Pipe 'A' Flow Rate
Pipe 'B' Flow Rate
Channel 1+2 Flow
Channel 1+2 produces a data output via a virtual Channel 3, proportional to the sum of the flow of two
independent pipes. This requires setting the two flow channels to operate independently.

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1020NFM-1DSection 1
Channel 1
Channel 2
Ch1- Ch2 Output
(difference of
Ch 1 & Ch 2)
PIPE `A'
PIPE `B'
PIPE`A'FLOWRATE
PIPE`B'FLOWRATE
Virtual
Channel
3
Channel 1-2 Flow
Channel 1-2 produces a data output via a virtual channel 3, proportional to the difference of the flow of
twoindependent pipes.This requires settingthe two flow channelsto operate independently.Note that
you can still select the individual channel outputs with this configuration.
Virtual
Channel
3
Channel 1
Channel 2
Ch1 + Ch2 Output
(sum of
Ch 1 & Ch 2)
PIPE `A'
PIPE `B'
PIPE“A”FLOW RATE
PIPE“B”FLOW RATE
1.4 CLAMP-ON TRANSIT-TIME THEORY OF OPERATION
Note that in the figure below, two transducers are mounted to the outside of a pipe. If we identify the
direction of flow through the pipe, you can see that one transducer location is “upstream” and the other
transducer location is “downstream” with respect to the direction of flow.
Upstream
Transducer
Downstream
Transducer
FLOW
FLOW

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1020NFM-1D
Section 1
θ
Upstream
transducer
Downstream
transducer
Beam Angle
FLOW
Wide Beam™
Axial Beam Injection
into pipe wall Sonic Wave front
Wide Beam Transmission
As shown in the figure above, an ultrasonic transducer induces an axial sonic beam within the wall of
the pipe. These vibrations spread along the pipe wall and then enter the liquid in the form of a Wide
Beam wave front traveling at an angle to the main pipe axis. The wide beam “rains” over the receiving
transducer. The wide coverage of the receiver is necessary because the angle of the sonic beam is
related to the liquid’s sonic propagation velocity by Snell’s Law.
Accordingto this formula,we can statethat, as theliquid sonicpropagation velocity changesso willthe
angle between the sonic beam and the flow stream.
Therefore, a significant liquid sonic velocity shift could deflect a “narrow” beam transmission away
from the receiving transducer entirely. The upstream vs. downstream transit-time difference will also
be affected by the changing (or refracting) beam angle. This makes it necessary for clamp-on systems
to continuously compute this angle, since it is subject to varying degrees of refraction. The flow com-
puterderives theangle by knowingthe fixedposition ofthe transducers, thedimensions ofthe pipe and
the measured transit-time. Therefore, the flow computer computes the beam angle relative to the axis
of the pipe.
For transit-time operation, the flow computer converts a series of electronic pulses to high frequency
sonic signals. Transducers inject these sonic signals through the pipe wall into the flowing liquid. Each
transducer alternates as either a transmitter or a receiver of the high frequency signals. This causes
the direction of the sonic signal to alternate between the downstream direction (traveling with the flow)
andthe upstream direction(traveling againstthe flow). Thetransit-time techniquerelies on theeffect of
the flowing liquid on the amount of time it takes to travel “downstream” versus “upstream.”
( )
Beam Angle = Arc Sine Liquid Sonic Propagation Velocity
Transducer Phase Velocity

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1020NFM-1DSection 1
The degree of the flow profile curvature is directly proportional to the Reynolds number of the flowing
liquid. FUS1020 software applies a compensation factor, which is selected based on knowledge of the
Reynolds number of the liquid. The algorithm continuously calculates this number from the measured
flow velocity, the pipe diameter and the viscosity of the liquid. The user enters this information during
the site setup procedure. The FUS1020 infers the current liquid viscosity and accommodate installa-
tions whose piping configuration does not permit fully developed flow, such as conditions where a
limited upstream straight pipe run is available for transducer installation.
Reflect mounting automatically corrects for non-axial flow or cross flow conditions. When the ex-
change of sonic signals occur by reflection off the far pipe wall as shown above, the average beam
versus stream angle will be equivalent to that of an axial flow stream.
Another important consideration is that the ultrasonic flowmeter has to compensate for the flow profile
to maintain calibration accuracy. Shown below is a graphic of a “fully-developed” flow profile. Note that
the fluid velocity increases toward the center (axis) of the flow stream.
Fluid velocity near the axis
of the flow stream tends to
be greater
Flow Calibration Factor
Normally, the flow stream is in line with the axis of the pipe. On this basis, the calibration factor of a
clamp-on ultrasonic flowmeter is proportional to the cosine of the beam angle relative to the pipe axis.
However, this reveals that if the angle of flow stream is not in line with the pipe axis, the flow calibration
factor could be compromised. This most often occurs when the transducer mounting location is within
close proximity of a bend or other pipe obstruction. This is why we recommend that whenever possible
you mount clamp-on transducers on the longest available straight run of pipe and also use Reflect
Mode mounting (as shown below).

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1020NFM-1D
Section 2
2. GETTING STARTED
This section explains the two programming interfaces available for the FUS1020 flowmeter. Instruc-
tions include how to navigate through the Installation Menu using either the FUS1020 Keypad or a
personal computer. It describes the actions required to enter numeric and alphabetic data, as well as
how to select an item from lists of available options.
2.1 IMPORTANT SAFETY CONSIDERATIONS
TheFUS1020 Permanent flowmeteris electricalequipment that operatesfrom eitheranexternalAC or
optional DC power source. All electric safety codes that apply to your application must be observed.
We recommend that only experienced personnel with knowledge of local electrical codes and operat-
ing safety procedures perform the installation and wiring. Since regulations vary by geographic loca-
tion, industry, etc., it is solely the user’s responsibility to operate this equipment safely.
Siemens cannot accept responsibility for any damage that may occur due to failure to observe any
local safety rules. This equipment is not intended for use in Hazardous (Classified) Locations. It is the
user’s responsibility to ensure that only properly trained personnel install and operate it.
If the equipment is used in a manner not specified by Siemens, the safety protection provided by the
equipment may be impaired.
Always check the unit for continued safety by visually inspecting the enclosure cover gasket for good
bonding, signs of wear and any bridging of wiring. Check the glands for proper sealing. Check the
cover for proper seating. If the gasket appears worn or has other defects, or you have concerns about
any of the other safety aspects of the FUS1020, contact the Technical Service group for servicing.
2.2 POWER CONNECTIONS
2.2.1 INPUT POWER CONNECTOR (P1) AND FUSE (F1) LOCATIONS
The standard FUS1020 flowmeter requires either 100/120/240 VAC or 9-36 VDC depending on the
model for its power input. The AC or DC power wires are connected directly to P1 terminal screws.
The power input is protected by a GMA 2A UL/CSA Listed fuse (F1), which is located under the Power
Enclosure Cover. Replace this fuse with only the exact type if it becomes necessary to do so.
Model FUS1020 With Keypad
Enclosure Cover And Power
Enclosure Cover Removed
K2
K1
J1
TB1
TB2
J2
XXX
HOT GNDNEU
CAUTION
HIGH VOLTAGE
JP1
AB
F1
FUSE F1
INPUT POWER
CONNECTOR P1
!!
!
2
Protective Conductor Terminal
Caution, risk of electric shock
Caution, risk of danger
SYMBOLS