Daniel Ultrasonic Gas Flow Meter Reference, Installation and Operations Manuals & Guides

Daniel Ultrasonic
Gas Flowmeter
Reference, Installation and
Operations Manual
DANIEL MEASUREMENT AND CONTROL, INC.
AN EMERSON PROCESS MANAGEMENT COMPANY
HOUSTON, TEXAS
Supporting
Single Path JuniorSonic
Dual Path JuniorSonic
TM
- Model 3400
TM
- Model 3410
TM
- Model 3420
Part Number 3-9000-740
Revision H
November 2007

Important Instructions

Daniel Measurement and Control, Inc. (Daniel) designs, manufactures and tests its products to meet many national and international standards. Because these instruments are sophisticated technical products, you must properly install, use and maintain them to ensure they continue to operate within their normal speci­fications. The following instructions must be adhered to and integrated into your safety program when installing, using and maintaining Daniel products.
Read all instructions prior to installing, operating and servicing the product. If this instruction manual is not the correct manual, call 1-713-827-6314 (24-hour response number for both Service and Sales Support) and the requested manual will be provided. Save this instruction manual for future reference.
If you do not understand any of the instructions, contact your Daniel representative for clarification.
Follow all warnings, cautions and instructions marked on and supplied with the product.
Inform and educate your personnel in the proper installation, operation and maintenance of the product.
Install your equipment as specified in the installation instructions of the appropriate instruction manual and per applicable local and national codes. Connect all products to the proper electrical and pressure sources.
To ensure proper performance, use qualified personnel to install, operate, update, program and maintain the product.
When replacement parts are required, ensure that qualified people use replacement parts specified by the manufacturer. Unauthorized parts and procedures can affect the product's performance and place the safe operation of your process at risk. Look-alike substitutions may result in fire, electrical hazards or improper operation.
Ensure that all equipment doors are closed and protective covers are in place, except when maintenance is being performed by qualified persons, to prevent personal injury.
ALWAYS READ AND FOLLOW THE DANIEL ULTRASONIC GAS FLOW METER MARK III REFERENCE, INSTALLATION, AND OPERATIONS MANUAL AND ALL PRODUCT WARNINGS AND INSTRUCTIONS.
Use of this equipment for any purpose other than its intended purpose may result in property damage and/or serious personal injury or death.
Before opening the flameproof enclosure in a flammable atmosphere, the electrical circuits must be interrupted.
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DANIEL MEASUREMENT AND CONTROL, INC.
Daniel Ultrasonic Gas Flow Meter Reference,
Installation and Operations Manual
NOTICE
DANIEL MEASUREMENT AND CONTROL, INC. ("DANIEL") SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS IN THIS MANUAL OR OMISSIONS FROM THIS MANUAL. DANIEL MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THIS MANUAL AND, IN NO EVENT, SHALL DANIEL BE LIABLE FOR ANY INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL DAMAGES INCLUDING, BUT NOT LIMITED TO, LOSS OF PRODUCTION, LOSS OF PROFITS, LOSS OF REVENUE OR USE AND COSTS INCURRED INCLUDING WITHOUT LIMITATION FOR CAPITAL, FUEL AND POWER, AND CLAIMS OF THIRD PARTIES.
PRODUCT NAMES USED HEREIN ARE FOR MANUFACTURER OR SUPPLIER IDENTIFICATION ONLY AND MAY BE TRADEMARKS/REGISTERED TRADEMARKS OF THESE COMPANIES.
THE CONTENTS OF THIS PUBLICATION ARE PRESENTED FOR INFORMATIONAL PURPOSES ONLY, AND WHILE EVERY EFFORT HAS BEEN MADE TO ENSURE THEIR ACCURACY, THEY ARE NOT TO BE CONSTRUED AS WARRANTIES OR GUARANTEES, EXPRESSED OR IMPLIED, REGARDING THE PRODUCTS OR SERVICES DESCRIBED HEREIN OR THEIR USE OR APPLICABILITY. ALL SALES ARE GOVERNED BY DANIEL'S TERMS AND CONDITIONS, WHICH ARE AVAILABLE UPON REQUEST. WE RESERVE THE RIGHT TO MODIFY OR IMPROVE THE DESIGNS OR SPECIFICATIONS OF SUCH PRODUCTS AT ANY TIME.
DANIEL DOES NOT ASSUME RESPONSIBILITY FOR THE SELECTION, USE OR MAINTENANCE OF ANY PRODUCT. RESPONSIBILITY FOR PROPER SELECTION, USE AND MAINTENANCE OF ANY DANIEL PRODUCT REMAINS SOLELY WITH THE PURCHASER AND END-USER.
DANIEL AND THE DANIEL LOGO ARE REGISTERED TRADEMARKS OF DANIEL INDUSTRIES, INC. THE EMERSON LOGO IS A TRADEMARK AND SERVICE MARK OF EMERSON ELECTRIC CO.
COPYRIGHT
All rights reserved. No part of this work may be reproduced or copied in any form or by any
means - graphic, electronic, or mechanical — without first receiving the written permission of
©
2007 BY DANIEL MEASUREMENT AND CONTROL, INC., HOUSTON, TEXAS,
U.S.A.
Daniel Measurement and Control, Inc. Houston, Texas, U.S.A.
WARRANTY
1. LIMITED WARRANTY: Subject to the limitations contained in Section 2 herein and except as otherwise expressly provided herein, Daniel Measurement and Control, Inc. ("Daniel") warrants that the firmware will execute the programming instructions provided by Daniel, and that the Goods manufactured or Services provided by Daniel will be free from defects in materials or workmanship under normal use and care until the expiration of the applicable warranty period. Goods are warranted for twelve (12) months from the date of initial installation or eighteen (18) months from the date of shipment by Daniel, whichever period expires first. Consumables and Services are warranted for a period of 90 days from the date of shipment or completion of the Services. Products purchased by Daniel from a third party for resale to Buyer ("Resale Products") shall carry only the warranty extended by the original manufacturer. Buyer agrees that Daniel has no liability for Resale Products beyond making a reasonable commercial effort to arrange for procurement and shipping of the Resale Products. If Buyer discovers any warranty defects and notifies Daniel thereof in writing during the applicable warranty period, Daniel shall, at its option, promptly correct any errors that are found by Daniel in the firmware or Services, or repair or replace F.O.B. point of manufacture that portion of the Goods or firmware found by Daniel to be defective, or refund the purchase price of the defective portion of the Goods/Services. All replacements or repairs necessitated by inadequate maintenance, normal wear and usage, unsuitable power sources, unsuitable environmental conditions, accident, misuse, improper installation, modification, repair, storage or handling, or any other cause not the fault of Daniel are not covered by this limited warranty, and shall be at Buyer's expense. Daniel shall not be obligated to pay any costs or charges incurred by Buyer or any other party except as may be agreed upon in writing in advance by an authorized Daniel representative. All costs of dismantling, reinstallation and freight and the time and expenses of Daniel's personnel for site travel and diagnosis under this warranty clause shall be borne by Buyer unless accepted in writing by Daniel. Goods repaired and parts replaced during the warranty period shall be in warranty for the remainder of the original warranty period or ninety (90) days, whichever is longer. This limited warranty is the only warranty made by Daniel and can be amended only in a writing signed by an authorized representative of Daniel. Except as otherwise expressly provided in the Agreement, THERE ARE NO REPRESENTATIONS OR WARRANTIES OF ANY KIND, EXPRESSED OR IMPLIED, AS TO MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, OR ANY OTHER MATTER WITH RESPECT TO ANY OF THE GOODS OR SERVICES. Buyer
acknowledges and agrees that corrosion or erosion of materials is not covered by this warranty.
2. LIMITATION OF REMEDY AND LIABILITY: CAUSED BY DELAY IN PERFORMANCE. THE SOLE AND EXCLUSIVE REMEDY FOR BREACH OF WARRANTY HEREUNDER SHALL BE LIMITED TO REPAIR, CORRECTION, REPLACEMENT OR REFUND OF PURCHASE PRICE UNDER THE LIMITED WARRANTY CLAUSE IN SECTION 1 HEREIN. IN NO EVENT, REGARDLESS OF THE FORM OF THE CLAIM OR CAUSE OF ACTION (WHETHER BASED IN CONTRACT, INFRINGEMENT, NEGLIGENCE, STRICT LIABILITY, OTHER TORT OR OTHERWISE), SHALL DANIEL'S LIABILITY TO BUYER AND/OR ITS CUSTOMERS EXCEED THE PRICE TO BUYER OF THE SPECIFIC GOODS MANUFACTURED OR SERVICES PROVIDED BY DANIEL GIVING RISE TO THE CLAIM OR CAUSE OF ACTION. BUYER AGREES THAT IN NO EVENT SHALL DANIEL'S LIABILITY TO BUYER AND/OR ITS CUSTOMERS EXTEND TO INCLUDE INCIDENTAL, CONSEQUENTIAL OR PUNITIVE DAMAGES. THE TERM "CONSEQUENTIAL DAMAGES" SHALL INCLUDE, BUT NOT BE LIMITED TO, LOSS OF ANTICIPATED PROFITS, REVENUE OR USE, AND COSTS INCURRED INCLUDING WITHOUT LIMITATION FOR CAPITAL, FUEL AND POWER, AND CLAIMS OF BUYER'S CUSTOMERS.
DANIEL SHALL NOT BE LIABLE FOR DAMAGES
TABLE OF CONTENTS i
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

TABLE OF CONTENTS

INTRODUCTION 1.1 MANUAL OVERVIEW .................................... 1-1
1.2 DEFINITIONS, ACRONYMS, ABBREVIATIONS...1-2
1.3 REFERENCES ................................................ 1-4
PRODUCT OVERVIEW 2.1 DESCRIPTION ............................................... 2-1
2.2 COMPONENT PARTS..................................... 2-3
2.2.1 Main Electronics Assembly ............................. 2-3
2.2.2 Model 3400 SeniorSonic
2.2.3 Model 3410 Single Path JuniorSonic
Meter Housing ..............................................2-6
2.2.4 Model 3420 Dual Path JuniorSonic
Meter Housing ..............................................2-7
TM
Meter Housing ....... 2-5
TM
TM
2.2.5 Ultrasonic Base Unit ......................................2-8
2.2.6 Transducers and Cabling ................................ 2-9
2.3 GENERAL UNIT SPECIFICATIONS ................. 2-10
2.3.1 The Application........................................... 2-10
2.3.2 Available Sizes............................................ 2-10
2.3.3 Pressure Range ........................................... 2-11
2.3.4 Flow Range Limits ....................................... 2-11
2.3.5 Flange Facing ............................................. 2-21
2.3.6 Gas Temperature Range ............................... 2-21
2.3.7 Repeatability............................................... 2-21
2.3.8 Accuracy Limits .......................................... 2-21
2.4 ELECTRONIC SPECIFICATIONS ..................... 2-21
2.4.1 Power........................................................ 2-21
2.4.2 Analog Inputs ............................................. 2-22
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ii TABLE OF CONTENTS
__________________________________________________________ Daniel Ultrasonic Gas Flow Meter
2.4.3 Outputs ..................................................... 2-22
2.4.4 Digital Outputs............................................ 2-22
2.4.5 Frequency Outputs ...................................... 2-26
2.4.6 Analog Output ............................................ 2-27
2.5 SAFETY ..................................................... 2-27
2.6 COMMUNICATIONS .................................... 2-28
2.7 FCC COMPLIANCE ...................................... 2-29
INSTALLATION 3.0 Installation Instructions .................................. 3-1
3.1 USM Lifting Instructions and Precautions .........3-2
3.1.1 Use of Appropriate Safety Engineered Swivel Hoist
Rings in Ultrasonic Meter End Flanges..............3-4
3.1.2 Using Appropriately Rated Lifting Slings
on Daniel Ultrasonic Meters .......................... 3-10
3.2 Jumper and Switch Settings ......................... 3-13
3.2.1 USM Communication Settings ...................... 3-13
3.2.2 DFI Communication Settings......................... 3-15
3.3 Mechanical Installation................................. 3-22
3.3.1 Pipeline Meter Housing Installation ................ 3-22
3.3.2 Main Electronics Assembly - Daniel
Ultrasonic Meter Housing ............................. 3-23
3.3.3 Transducer Cables/Appropriate Transducer ..... 3-23
3.3.4 For Systems Using Explosion-Proof Conduit....3-24
3.3.5 For Systems that Use Flame-Proof Cable ........3-25
3.4 Memory Protection ...................................... 3-26
3.4.1 Message Block Check List ............................3-26
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Installation NOV 2007
TABLE OF CONTENTS iii
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
METER
CONFIGURATION,
FIRMWARE
4.1 CONFIGURING THE DFI ................................. 4-1
4.1.1 Set Real-Time Clock ...................................... 4-1
4.1.2 Set DFI General Parameters ............................ 4-2
4.1.3 Set Temperature and Pressure Sampling .......... 4-3
4.1.4 Set AGA8 Parameters.................................... 4-5
4.1.5 Set Expansion Correction Parameters............... 4-8
4.1.6 Reynolds Number and Flow-Profile-Effect
Correction Parameters ................................... 4-9
4.1.7 Set Frequency and Current Outputs............... 4-11
4.2 CALIBRATING TEMPERATURE and
PRESSURE INPUTS ..................................... 4-12
4.3 CALIBRATING CURRENT OUTPUT SIGNAL .... 4-16
4.4 CONFIGURING EVENT AND DATA LOGGING..4-17
4.4.1 Specifying the Contract Hour........................ 4-17
THEORY OF
OPERATION
4.4.2 Selecting the Log Date and Time Format ........ 4-17
4.4.3 Selecting the Daily Log Volume Format .......... 4-17
4.4.4 Selecting the Hourly Log Volume Format........ 4-18
4.5 TESTING THE FREQUENCY and
CURRENT OUTPUT SIGNALS ....................... 4-19
4.6 TESTING THE AGA8 COMPRESSIBILITY
CALCULATION ........................................... 4-19
5.1 UNITS OF MEASUREMENT............................. 5-1
5.2 MEASUREMENT ...........................................5-1
5.2.1 Introduction.................................................. 5-1
5.2.2 Noise Immunity.............................................5-2
5.2.3 Measurement Independence ........................... 5-2
5.2.4 Volume Calculations ...................................... 5-6
5.2.5 Flow Profile Correction Factors
TM
for JuniorSonic
Meters ............................... 5-9
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NOV 2007 METER CONFIGURATION, FIRMWARE
iv TABLE OF CONTENTS
__________________________________________________________ Daniel Ultrasonic Gas Flow Meter
5.3 COMMUNICATIONS .................................... 5-13
5.3.1 Architecture Issues...................................... 5-13
5.3.2 External Communication............................... 5-15
5.3.3 Host Communication ................................... 5-16
5.4 MODES OF OPERATION............................... 5-17
5.5 BATCH CYCLE PROCESSING........................ 5-19
5.5.1 Determining Meter Batch Completion ............. 5-19
5.5.2 Reading Host Processor Modbus Registers ..... 5-19
5.5.3 Flow Condition Temperature and Pressure ...... 5-20
5.5.4 Temperature and Pressure Effect
Expansion Correction ................................... 5-21
5.5.5 AGA8 Flow-Condition Compressibility
Calculation ................................................. 5-24
5.5.6 Reynolds Number Calculation........................ 5-25
5.5.7 Flow Profile Effect Correction ....................... 5-27
5.5.8 Base-Condition Volumetric Flow
Rate Calculation.......................................... 5-29
5.6 DATA VALIDITY DETERMINATION................ 5-31
5.6.1 Temperature Measurement Validity................ 5-31
5.6.2 Pressure Measurement Validity ..................... 5-31
5.6.3 AGA8 Base Condition Compressibility
Calculation Validity...................................... 5-32
5.6.4 AGA8 Flow Condition Compressibility
Calculation Validity...................................... 5-32
5.6.5 Meter-Reported Flow Condition Volumetric
Flow Rate Validity ....................................... 5-32
5.6.6 Corrected Flow Condition Volumetric
Flow Rate Validity ....................................... 5-32
5.6.7 Base Condition Volumetric Flow Rate Validity . 5-35
5.6.8 Frequency Data Validity ............................... 5-35
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THEORY OF OPERATION NOV 2007
TABLE OF CONTENTS v
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
5.7 OUTPUT SIGNAL UPDATING ........................ 5-36
5.7.1 Output Volumetric Flow Rate Calculation ....... 5-36
5.7.2 Frequency Signal Updating ........................... 5-39
5.7.3 Current Signal Updating ............................... 5-40
5.7.4 Direction and Validity Output Updating .......... 5-42
5.8 MAINTENANCE MODE (ANALOG
INPUT SIGNAL)........................................... 5-42
5.8.1 Read Inputs Submode .................................. 5-43
5.8.2 Temperature and Pressure Offset
Calibration Submodes .................................. 5-44
5.8.3 Temperature and Pressure Gain
Calibration Submodes .................................. 5-44
5.8.4 Reset Calibration Submodes ......................... 5-45
5.9 CURRENT CALIBRATION MODE.................... 5-45
5.9.1 Zero Scale Submode.................................... 5-45
5.9.2 Full Scale Submode ..................................... 5-46
5.9.3 Reset Offset Submode ................................. 5-46
5.9.4 Reset Gain Submode ................................... 5-46
5.10 EVENT AND DATA LOGGING ....................... 5-46
5.10.1 General ...................................................... 5-47
5.10.2 Reading Log Configurations and Records ........ 5-59
5.11 SELF TESTS ............................................... 5-70
5.11.1 Internal RAM Integrity.................................. 5-70
5.11.2 External RAM Address Line .......................... 5-70
5.11.3 External RAM Integrity................................. 5-71
5.11.4 Program Memory Validity ............................. 5-71
5.11.5 Software Error Detection.............................. 5-71
5.11.6 Normal Diagnostic Mode (AGA8 Test Cases) .. 5-72
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NOV 2007 THEORY OF OPERATION
vi TABLE OF CONTENTS
__________________________________________________________ Daniel Ultrasonic Gas Flow Meter
5.12 ADC SELF-CALIBRATION ............................. 5-74
5.13 NON-VOLATILE DATA PROTECTION ............. 5-74
MAINTENANCE 6.1 FIELD HYDROSTATIC PRESSURE
TESTING PROCEDURES .................................6-1
6.1.1 T-Slot Transducer Assembly and Mount ........... 6-1
6.2 T-Slot TRANSDUCER REMOVAL and
INSTALLATION PROCEDURES ........................ 6-2
6.2.1 Removal With Extractor Tool .......................... 6-4
6.2.2 Removel Without Extractor Tool......................6-5
6.2.3 Modifying the Calibration Parameters............... 6-7
6.3 REPAIRING THE UFM..................................... 6-7
APPENDIX A,
CONVERSION FACTORS
APPENDIX B, MODBUS
COMMUNICATIONS
A.1 CONVERSION FACTORS PER UNIT
OF MEASUREMENT...................................... A-1
B.1 INTRODUCTION TO MODBUS
COMMUNICATION ........................................ B-1
B.2 MESSAGE FORMATS ....................................B-3
B.3 ASCII MODBUS FORMAT...............................B-4
B.3.1 Function Code 3 – Read Multiple Registers .......B-4
B.3.2 Function Code 6 – Write Single Register ..........B-4
B.3.3 Function Code 16 – Write Multiple Registers ....B-5
B.4 RTU MODBUS FORMAT.................................B-5
B.4.1 Function Code 3 – Read Multiple Registers .......B-5
B.4.2 Function Code 6 – Write Single Register ..........B-6
B.4.3 Function Code 16 – Write Multiple Registers ....B-6
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MAINTENANCE NOV 2007
TABLE OF CONTENTS vii
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
APPENDIX C, BLOCK
LIST
APPENDIX C, UFM
MODBUS REGISTERS
APPENDIX D, BLOCK
LIST
APPENDIX D, DFI
MODBUS REGISTERS
APPENDIX E, SYSTEM
SET-UP
APPENDIX F,
MISCELLANEOUS
EQUATIONS
APPENDIX G,
ENGINEERING
DRAWINGS
C.1 SPECIFIC MESSAGE BLOCKS
AND REGISTERS ..........................................C-1
C.2 MODBUS REGISTER VALUES
MESSAGE BLOCKS .......................................C-5
D.1 SPECIFIC MESSAGE BLOCKS
AND REGISTERS...........................................D-1
D.2 MODBUS REGISTER VALUES
MESSAGE BLOCKS .......................................D-3
E.1 SYSTEM SET-UP FLOW CHARTS .................... E-1
E.2 VOLUME CALCULATIONS............................ E-17
F.1 CONVERSION FACTORS PER UNIT
OF MEASUREMENT....................................... F-1
G.1 ULTRASONIC METER DRAWINGS ...................G-1
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NOV 2007 APPENDIX C, BLOCK LIST
viii TABLE OF CONTENTS
__________________________________________________________ Daniel Ultrasonic Gas Flow Meter
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APPENDIX G, ENGINEERING DRAWINGS NOV 2007
ix
Daniel Ultrasonic Gas Flow Meter

LIST OF FIGURES

Figure 2-1 Main Electronics Assembly............................................................. 2-4
TM
Figure 2-2 Model 3400 Meter SeniorSonic
Figure 2-3 Model 3410 Single Path JuniorSonic
Figure 2-4 Model 3420 Dual Path JuniorSonic
Figure 2-5 Ultrasonic Base Unit ......................................................................2-8
Figure 2-6 T-11 Transducer ........................................................................... 2-9
Figure 2-7 T-12 Transducer ........................................................................... 2-9
Figure 2-8 T-17 Transducer ........................................................................... 2-9
TM
Figure 2-9 4”-12” SeniorSonic
Figure 2-10 16”-36” SeniorSonic
Figure 2-11 4”-12” SeniorSonic
Figure 2-12 16”-24” SeniorSonic
Schedule 40 Graph ..................................... 2-15
TM
Schedule 40 Graph.................................... 2-16
TM
Schedule 80 Graph ..................................... 2-19
TM
Schedule 80 Graph.................................... 2-20
Meter Housing .............................2-5
TM
Meter Housing ......................2-6
TM
Meter Housing ........................2-7
Figure 2-13 DFI Board .................................................................................. 2-23
Figure 2-14 1-5V Peripheral Field Connection Bd. (PFC) .................................... 2-24
Figure 2-15 4-20 mA Peripheral Field Connection Bd. (PFC)............................... 2-25
Figure 3-1 Meter End Flange with Tapped Flat-Counterbore Hole for Hoist Ring.... 3-4
Figure 3-2 Safety Approved Hoist Ring and Non-Compliant Eye Bolt ................... 3-5
Figure 3-3 CPU Board Switch and Jumper Settings ........................................ 3-14
Figure 3-4 DFI Board Showing Switch Banks ................................................. 3-15
Figure 3-5 Field Connection Board Showing Switch S1 ................................... 3-16
Figure 3-6 Power Supply Board Jumpers ....................................................... 3-17
Figure 3-7 DFI Board Switch Banks for S1 and S2.......................................... 3-18
Figure 3-8 CPU Modbus Register Blocks 1 of 2 .............................................. 3-27
Figure 3-9 CPU Modbus Register Blocks 2 of 2 .............................................. 3-28
TM
Figure 5-1 SeniorSonic
Figure 5-2 JuniorSonic
Measurement Principle ............................................. 5-3
TM
Principle .................................................................5-4
Figure 5-3 Flow Rate Equation #1 .................................................................. 5-4
Figure 5-4 Flow Rate Equation #2 .................................................................. 5-4
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List of Figures NOV 2007
x
Daniel Ultrasonic Gas Flow Meter
Figure 5-5 Actual Volume Flow Rate Equation #1.............................................5-5
Figure 5-6 Actual volume flow Rate Equation #2.............................................. 5-5
TM
Figure 5-7 Flow-Profile Correction Factor for JuniorSonic
TM
Figure 5-8 JuniorSonic
Figure 5-9 JuniorSonic
Reynolds Number Equation ....................................... 5-9
TM
Reynolds Number (dimensionless) ............................ 5-10
Meter ..................... 5-9
Figure 5-10 Uncorrected Volumetric Flow Rate Calculation................................ 5-10
Figure 5-11 Alternative Combined JuniorSonic
TM
Reynolds Number Equation ...... 5-11
Figure 5-12 Flow-Profile-Effect Corrected Volumetric Flow Rate Calculation ........ 5-11
Figure 5-13 Flow-Profile-Effect Calculation ...................................................... 5-12
Figure 6-1 J-Mount Transducer Assembly ....................................................... 6-2
Figure 6-2 J-Mount Transducer Assembly ....................................................... 6-2
Figure 6-3 J-Mount Transducer Assembly ....................................................... 6-3
Figure 6-4 J-Mount Transducer Disassembly.................................................... 6-3
Figure 6-5 M-Mount Transducer Disassembly .................................................. 6-3
Figure 6-6 M-Mount Transducer Disassembly .................................................. 6-4
Figure E-1 Start Flow Chart ........................................................................... E-2
Figure E-2 “A” Flow Chart ............................................................................ E-3
Figure E-3 “B” Flow Chart............................................................................. E-4
Figure E-4 “C” Flow Chart............................................................................. E-5
Figure E-5 Temperature Set-Up Flow Chart...................................................... E-6
Figure E-6 Pressure Set-Up Flow Chart ........................................................... E-7
Figure E-7 AGA8 Set-Up Flow Chart............................................................... E-8
Figure E-8 Frequency Output Set-Up Flow Chart .............................................. E-9
Figure E-9 Current Output Set-UP Flow Chart ................................................ E-10
Figure E-10 Logging Set-Up Flow Chart .......................................................... E-11
Figure E-11 Perform Analog Temperature Input Calibration Flow Chart ............... E-12
Figure E-12 Temperature Gain Cal. Flow Chart ................................................ E-13
Figure E-13 Perform Analog Pressure Input Calibration Flow Chart ..................... E-14
Figure E-14 Pressure Gain Cal. Flow Chart ...................................................... E-15
Figure E-15 Perform Current Output Calibration Flow Chart ............................... E-16
Figure E-16 Volume Calculations (Sheet 1 of 2) ............................................... E-17
Figure E-17 Volume Calculations (Sheet 2 of 2) ............................................... E-18
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List of Figures NOV 2007
xi
Daniel Ultrasonic Gas Flow Meter

List of Tables

Table 2-1 Transducer Connection Ports and Transducers................................ 2-10
TM
Table 2-2 SeniorSonic
Table 2-3 SeniorSonic
Table 2-4 SeniorSonic
Table 2-5 SeniorSonic
Table 2-6 Voltage Level and Drive Capability per Logic Level .......................... 2-26
Table 2-7 Voltage Level and Drive Capability per Logic Level .......................... 2-27
Table 2-8 DFI Serial Communication Outputs ................................................ 2-28
Table 3-1 Hoist Ring Lookup Table for Daniel Gas SeniorSonic
Table 3-2 Hoist Ring Lookup Table for Daniel Gas JuniorSonic
Minimum Flow Rates Schedule 40 Bore .................... 2-13
TM
Maximum Flow Rates Schedule 40 Bore ................... 2-14
TM
Minimum Flow Rate Schedule 80............................. 2-17
TM
Maximum Flow Rate Schedule 80............................ 2-18
TM
Meters*.......... 3-9
TM
Meters............ 3-9
Table 3-3 Serial Communication Port Driver Selection and Wiring .................... 3-18
Table 3-4 Modbus Address......................................................................... 3-19
Table 3-5 Port A Baud Rate ........................................................................ 3-20
Table 3-6 Modbus Protocol for S2 ............................................................... 3-21
Table 4-1 Calibration Reset Submodes ......................................................... 4-15
Table 4-2 Date and Time Formats per LogDataTimeFormat Value .................... 4-18
Table 5-1 Predefined Measurement Units ..................................................... 5-13
Table 5-2 Host Modbus Registers Read per Batch Cycle ................................. 5-19
Table 5-3 Time and Date Formats per LogDateTimeFormat Value ................... 5-49
Table 5-4 Current Contents of Hourly and Daily Log Records .......................... 5-49
Table 5-5 Data Points Monitored for the Audit Log ........................................ 5-50
Table 5-6 Data Points Monitored for the Alarm Log Sheet .............................. 5-52
Table 5-7 Read Hourly Log Configuration Request Message Content................ 5-59
Table 5-8 Read Hourly Log Configuration Response Message Content ............. 5-60
Table 5-9 Read Daily Log Configuration Request Message Content ................. 5-61
Table 5-10 Read Daily Log Configuration Response Message Content ............... 5-62
Table 5-11 Read Daily or Hourly Log Record Request Message Content ............ 5-64
Table 5-12 Read Daily or Hourly Log Record Response Message Content .......... 5-64
NOV 2007 List of Tables
xii
Daniel Ultrasonic Gas Flow Meter
Table 5-13 Read Event Log Request Message Content .................................... 5-66
Table 5-14 Read Event Log Response Message Content................................... 5-66
Table 5-15 Clear and Reset Event Log Request/Response Message Content ...... 5-69
Table 5-16 Normal Mode Diagnostic Test Cases ............................................. 5-73
Table A-1 Conversion Factors per Unit of Measurement ...................................A-2
Table B-1 Modbus Message Format Abbreviations .......................................... B-3
Table B-2 Modbus Register Data per Format Type ........................................... B-3
Table C-1 Modbus Register Values Message Block 1 (Communications) .............C-5
Table C-2 Modbus Register Values Message Block 2 (Operation) .......................C-7
Table C-3 Modbus Register Values Message Block 3 (Operation) .....................C-15
Table C-4 Modbus Register Values Message Block 4 (Diagnostics) .................. C-19
Table C-5 Modbus Register Values Message Block 5 (Status)..........................C-22
Table C-6 Modbus Register Values Message Block 6 (Diagnostics) .................. C-27
Table C-7 Modbus Register Values Message Block 7 (Memory Display) ............C-32
Table C-8 Modbus Register Values Message Block 8 (Diagnostics) .................. C-32
Table C-9 Modbus Register Values Message Block 9 (Operation) .....................C-33
Table C-10 Modbus Register Values Message Block 10 (Operation) ................... C-43
Table C-11 Modbus Register Values Message Block 11 (Calibration) ..................C-49
Table C-12 Modbus Register Values Message Block 12 (Calculation Results CPU R Reg-
isters)C-54
Table C-13 Modbus Register Values Message Block 13 (Calculation Results) ......C-57
Table C-14 Modbus Register Values Message Block 14 (Calculation Results) ......C-59
Table C-15 Modbus Register Values Message Block 15 (Diagnostics).................C-61
Table C-16 Modbus Register Values Message Block 16 (Diagnostics).................C-63
Table C-17 Modbus Register Values Message Block 17 (Calculation Results) ......C-65
Table C-18 Modbus Register Values Message Block 18 (Diagnostics).................C-68
Table C-19 Modbus Register Values Message Block 19 (Diagnostics).................C-68
Table C-20 Modbus Register Values Message Block 20 (Diagnostics).................C-71
Table C-21 Modbus Register Values Message Block 21 (Diagnostics).................C-73
Table C-22 Modbus Register Values Message Block 22 (Diagnostics).................C-77
Table C-23 Modbus Register Values Message Block 23 (Diagnostics).................C-79
List of Tables NOV 2007
xiii
Daniel Ultrasonic Gas Flow Meter
Table C-24 Modbus Register Values Message Block 24 (Diagnostics).................C-81
Table C-25 Modbus Register Values Message Block 25 (Diagnostics).................C-83
Table C-26 Modbus Register Values Message Block 26 (Diagnostics).................C-85
Table C-27 Modbus Register Values Message Block 27 (Diagnostics).................C-90
Table C-28 Modbus Register Values Message Block 28 (Diagnostics).................C-93
Table C-29 Modbus Register Values Message Block 29 (Calculation Results) ......C-97
Table C-30 Modbus Register Values Message Block 30 (Memory Display) ........C-105
Table C-31 Modbus Register Values Message Block 31 (Waveform) ................C-105
Table C-32 Modbus Register Values Message Block 32 (Diagnostics)...............C-106
Table C-33 Modbus Register Values Message Block 33 (CPU R/W Registers) ....C-109
Table C-34 Modbus Register Values Message Block 34 (CPU R/W Registers) ....C-114
Table D-1 Modbus Register Values Message Block 50 (Operating Mode) ........... D-3
Table D-2 Modbus Register Values Message Block 51 (Operation Parameters).... D-6
Table D-3 Modbus Register Values Message Block 52 (Real-time Clock
Settings/Status)..........................................................................D-14
Table D-4 Modbus Register Values Message Block 53
(Correction Setup Parameters) ......................................................D-16
Table D-5 Modbus Register Values Message Block 54
(AGA8 Setup Parameters) ............................................................D-24
Table D-6 Modbus Register Values Message Block 55 (Diagnostics).................D-35
Table D-7 Modbus Register Values Message Block 56
(Analog Enable / Logging Parameters)............................................D-36
Table D-8 Modbus Register Values Message Block 60 (Frequency Status) ........D-42
Table D-9 Modbus Register Values Message Block 61 (Accumulated Volumes) .D-46
Table D-10 Modbus Register Values Message Block 62 (Calculation Results 1) ...D-52
Table D-11 Modbus Register Values Message Block 63 (Calculation Results 2) ...D-61
Table D-12 Modbus Register Values Message Block 64
(Maintenance/Test Values) ...........................................................D-66
Table D-13 Modbus Register Values Message Block 65 (ADC Calibration) ..........D-68
Table D-14 Modbus Register Values Message Block 66 (System Calibration) ......D-69
NOV 2007 List of Tables
xiv
Daniel Ultrasonic Gas Flow Meter
Table D-15 Modbus Register Values Message Block 67 (Log Status)..................D-70
Table D-16 Modbus Register Values Message Block 68 (Reserved) ....................D-76
Table D-17 Modbus Register Values Message Block 69 (Device Status) .............D-76
Table D-18 Modbus Register Values Message Block 70 (Device Information) ......D-80
Table D-19 Modbus Register Values Message Block 71
(Integer Memory Contents) .......................................................... D-82
Table D-20 Modbus Register Values Message Block 72
(Floating Point Memory Contents) .................................................D-82
Table D-21 Modbus Register Values Message Block 73
(Frequency Feedback Information).................................................D-83
List of Tables NOV 2007
INTRODUCTION 1-1
Daniel Ultrasonic Gas Flow Meter______________________________________________________
1

INTRODUCTION

The Daniel Ultrasonic Gas Flow Meter Reference Manual (P/N 3-9000-740) provides descriptions and explanations of the Daniel
Multipath SeniorSonic Model 3410 and the Dual Path JuniorSonic
The Daniel Ultrasonic Flow Meter was originally developed and tested by British Gas. The unit was further developed by Daniel and features hardware and electronics designed for easy use and minimum maintenance. All parts and assemblies have been tested prior to shipment. Daniel holds an exclusive license from British Gas, which it obtained in 1986, to manufacture and sell this product.

1.1 MANUAL OVERVIEW

This manual consists of the following sections and appendices:
TM
- Model 3400, Single Path JuniorSonicTM -
TM
- Model 3420.
Sections
Section 1 - Introduction
Section 2 - Product Overview
Section 3 - Installation
Section 4 - Meter Configuration, Firmware
Section 5 - Theory of Operation
Section 6 - Maintenance
Appendices
Appendix A - Conversion Factors
Appendix B - Modbus Communications
Appendix C - Block List and Index of Registers
Appendix D - Block List, DFI Modbus Registers, and Index of Registers
Appendix E - System Set-up
Appendix F - Miscellaneous Equations
Appendix G - Engineering Drawings
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AUG 2004 MANUAL OVERVIEW
1-2 INTRODUCTION
___________________ ___ ___ ___ ____ ___ ___ ___ ____ ___ _____ Daniel Ultrasonic Gas Flow Meter

1.2 DEFINITIONS, ACRONYMS, ABBREVIATIONS

The following terms, acronyms, and abbreviations are used in this document:
Acronym or Abbreviation
o
C
o
F
Definition
Degrees Celsius (temperature unit)
Degrees Fahrenheit (temperature unit)
ADC Analog-to-Digital Converter
AGA American Gas Association
ASCII MODBUS A Modbus protocol message framing format in which
ASCII characters are used to delineate the beginning and end of the frame. ASCII stands for American Standard Code for Information Interchange.
Btu British Thermal Unit (heat unit)
cPoise Centipoise (viscosity unit)
CPU Central Processing Unit
CTS Clear-to-Send; the RS-232C handshaking signal
input to a transmitter indicating that it is okay to transmit data — i.e., the corresponding receiver is ready to receive data. Generally, the Request-To­Send (RTS) output from a receiver is input to the Clear-To-Send (CTS) input of a transmitter.
DAC Digital-to-Analog Converter
DFI Diagnostics and Frequency Interface (board)
dm
Decimeter (10
-1
meters, length unit)
EEPROM Electrically-Erasable, Programmable Read-Only
Memory
ft Feet (length unit)
g-mol Gram mole
Host processor CPU Board Host processor
hr Hour (time unit)
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DEFINITIONS, ACRONYMS, ABBREVIATIONS AUG 2004
INTRODUCTION 1-3
Daniel Ultrasonic Gas Flow Meter______________________________________________________
Acronym or Abbreviation
Definition
Hz Hertz (cycles per second, frequency unit)
I/O Input/Output
K Kelvin (temperature unit)
kg Kilogram (mass unit)
kg-mol Kilogram mole
kHz
kJ
Kilohertz (10
Kilojoule (10
3
cycles per second, frequency unit)
3
joules, heat unit)
lbm Pound mass
lbm-mol Pound mass mole
m Meter (length unit)
mA Milliamp (current unit)
MPa
Megapascal (equivalent to 10
6
Pascal) (pressure unit)
NOVRAM Non-Volatile Random Access Memory
Pa Pascal, equivalent to 1 newton per square meter
(pressure unit)
Pas Pascal Second (viscosity unit)
PC Personal Computer
PFC Peripheral Field Connection (board)
PN Part Number
ppm Parts Per Million
PS Power Supply (board)
psi Pounds per Square Inch (pressure unit)
psia Pounds per Square Inch Absolute (pressure unit)
psig Pounds per Square Inch Gage (pressure unit)
RAM Random Access Memory
RTS Request-to-Send; the RS-232C handshaking signal
output by a receiver when it is ready to receive data
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AUG 2004 DEFINITIONS, ACRONYMS, ABBREVIATIONS
1-4 INTRODUCTION
___________________ ___ ___ ___ ____ ___ ___ ___ ____ ___ _____ Daniel Ultrasonic Gas Flow Meter
Acronym or Abbreviation
RTU MODBUS A Modbus protocol framing format in which elapsed
s Second (time unit, metric)
sec Second (time unit, U.S. Customary)
USM Ultrasonic Gas Flow Meter
V Volts (electric potential unit)

1.3 REFERENCES

[1] Gould Modbus Protocol Reference Guide, Rev. B, PI-MBUS-300
[2] Measurement of Fuel Gas By Turbine Meters, American Gas
Association, Transmission Measurement Committee Report No. 7, Second Revision, April 1996 (also referred to as AGA7)
[3] Compressibility Factors of Natural Gas and Other Related
Hydrocarbon Gases, American Gas Association, Transmission Measurement Committee Report No. 8, Second Edition, Second Printing, July, 1994 (also referred to as AGA8)
Definition
time between received characters is used to separate messages. RTU stands for Remote Terminal Unit.
[4] Manual of Petroleum Measurement Standards, Chapter 21 – Flow
Measurement Using Electronic Metering Systems, Section 1 – Electronic Gas Measurement, American Gas Association and American Petroleum Institute, First Edition, September, 1993
________________________________________________________________________________
REFERENCES AUG 2004
PRODUCT OVERVIEW 2-1
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
1PRODUCT OVERVIE W

PRODUCT OVERVIEW

2.1 DESCRIPTION

The Daniel SeniorSonic
TM
- Model 3400 has four measurement paths to accurately determine the flow of gas, especially natural gas, to custody transfer standards. Computer simulations of various gas velocity profiles demonstrate that four-path measurements provide an optimum solution for measuring asymmetric flow. An array of eight ultrasonic transducers are placed at angles across the bore of the unit to measure sound travel times in four parallel planes. Sound transit times are measured with and against the flow through the meter. Since the travel time with the flow is less than that against the flow, and the transducer locations are a known constant, the mean velocity of the gas can be calculated by appropriately averaging the measurements from each plane. The symmetry of the system provides bi-directional capability.
TM
The Daniel JuniorSonic
Meters (Model 3410 Single Path and Model 3420 Dual Path) measure the transit times of ultrasonic waves passing through the flowing gas in a pipeline to determine the average velocity of the gas movement. Both meters have measurement paths angled with respect to the pipe axis and incorporate two bi-directional transducers per path. The transducers act alternately as transmitters or receivers permitting the upstream and downstream transit times to be measured. Since the path lengths and angles are known, and since the electronic characteristics of the transducer pairs can be measured, the transit time measurements contain all of the information necessary to determine the velocity of the moving gas along the measurement paths. The dual-path version provides an extra center-path measurement. See Section 4.1.6 and see Section 5.5.6 for Reynolds correction information.
TM
Advantages and features of the SeniorSonic
Model 3400 include:
field-proven reliability for dry gas
easy installation
little or no maintenance
no moving parts requiring lubrication
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NOV 2007 DESCRIPTION
2-2 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
no flow obstruction to cause pressure drop
dry calibration requiring no flow calibration
a large flow range
velocity measurement unaffected by gas properties
bi-directional flow measurement
digital waveform sampling
digital signal processing
self diagnostics to insure proper performance
The JuniorSonic the SeniorSonic somewhat flow-profile sensitive. Since the JuniorSonic
TM
Models 3410 and 3420 have all of the advantages of
TM
Model 3400 noted above, but are less accurate and are
TM
Meters use centerline paths, a flow profile correction factor (sometimes called a Reynold's Number) is needed to reduce the value of the measured velocity to the correct average for the cross-sectional area. This can be accomplished by either using a fixed value, or more accurately by measuring pressure and temperature, and then applying an active correction to the measured transit times. Once the corrected mean velocity is determined, the flow rate is calculated by multiplying the average velocity by the cross-sectional area of the pipe.
The Ultrasonic Meter can use measured or specified flow condition temperature and pressure values for use in velocity profile-effect correction (for single-path and dual-path meters) and for volumetric flow rate conversion to a user-specified base temperature/pressure condition.
Beginning with firmware version 3.00, the DFI adds event and data logging capability compliant with the Manual of Petroleum Measurement Standards, Chapter 21 (ref. [4]).
Adding the event and data logging requires only a firmware upgrade. The DFI electronics already contain all the necessary components for event and data logging.
The following sections describe general specifications for the DFI accessory to the USM.
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DESCRIPTION NOV 2007
PRODUCT OVERVIEW 2-3
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

2.2 COMPONENT PARTS

The Daniel Ultrasonic Gas Flow Meters are available in various configurations to meet a broad range of customer requirements. Each unit comes fully assembled from Daniel.

2.2.1 Main Electronics Assembly

Explosion-proof housing that is divided into two compartments containing the following electronic assemblies (see Figure 2-1):
- a DFI Board, CPU Board, Power Supply Board, and Intrinsically safe Interface Board in the first compartment
- a Field Connection Board and Peripheral Field Connection Board for making electrical connections in the second compartment
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NOV 2007 COMPONENT PARTS
2-4 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Figure 2-1 Main Electronics Assembly
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COMPONENT PARTS NOV 2007
PRODUCT OVERVIEW 2-5
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

2.2.2 Model 3400 SeniorSonicTM Meter Housing

See Figure 2-2
Serves as the patented core of the unit
Features the multipath, acoustic-signal scheme measuring travel time on four parallel planes for sampling and measuring gas flow under asymmetric and swirl conditions
Has "port" connections for mounting the unit's ultrasonic transducers
Figure 2-2 Model 3400 Meter SeniorSonicTM Meter Housing
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NOV 2007 COMPONENT PARTS
2-6 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter

2.2.3 Model 3410 Single Path JuniorSonicTM Meter Housing

See Figure 2-3
Serves as the core of the unit
Features a single-path, on one center chord, acoustic-signal scheme measuring travel time on one plane for sampling and measuring gas flow
Has "port" connections for mounting the unit's ultrasonic transducers
Chord is located to allow natural drainage under wet gas conditions
Figure 2-3 Model 3410 Single Path JuniorSonicTM Meter Housing
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COMPONENT PARTS NOV 2007
PRODUCT OVERVIEW 2-7
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

2.2.4 Model 3420 Dual Path JuniorSonicTM Meter Housing

See Figure 2-4
Serves as the core of the unit
Features a dual-path, on two center chords - 90 degrees apart, acoustic-signal scheme measuring travel time for sampling and measuring gas flow
Has "port" connections for mounting the unit's ultrasonic transducers
Chords are arranged to allow natural drainage under wet gas conditions
Figure 2-4 Model 3420 Dual Path JuniorSonicTM Meter Housing
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NOV 2007 COMPONENT PARTS
2-8 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter

2.2.5 Ultrasonic Base Unit

See Figure 2-5
Connects the main electronics assembly to the Meter Housing
Provides housing for the intrinsically-safe Driver/Preamp Board which excites transducers in the transmit mode and pre amplifies signals from transducers in the receive mode.
TM
Note that the base unit is the same for the SeniorSonic JuniorSonic connection ports. The SeniorSonic JuniorSonic
TM
Meters with the exception of the number of transducer
TM
has eight, the Single Path
TM
has two and the Dual Path JuniorSonicTM has four.
Meter and both
Figure 2-5 Ultrasonic Base Unit
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COMPONENT PARTS NOV 2007
PRODUCT OVERVIEW 2-9
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

2.2.6 Transducers and Cabling

The standard transducers are designated the T-11, T-12 and T-17. The T-11 is a direct replacement for the older T-2 transducers. The T-12 is a small diameter version of the T-11, suitable for small meters such as a 4-
inch meter, as well as the 8 inch, 10 inch and 12 inch 60
o
SeniorSonic
TM
meters.
The T-17 is a transducer which is a combination of a T-12 transducer and a transducer holder that provides high corrsion resistance. It is available
in 8 inch, 10 inch and 12 inch ANSI 300/600 60
o
SeniorSonic
TM
meters.
Figure 2-6 T-11 Transducer
Figure 2-7 T-12 Transducer
Figure 2-8 T-17 Transducer
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NOV 2007 COMPONENT PARTS
2-10 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Table 2-1 Transducer Connection Ports and Transducers
Model Meter Ports Transducers
3400
3410
3420
3422
SeniorSonic
(Single-Path) JuniorSonic
(Dual-Path) JuniorSonic
SeniorSonic
TM
TM
TM
TM
with half-radius chords

2.3 GENERAL UNIT SPECIFICATIONS

The following section describes general specifications for all Daniel Ultrasonic Gas Flow Meters.

2.3.1 The Application

The application is for high-pressure gases. Minimum operating pressure is typically 10 bar (150 psi).

2.3.2 Available Sizes

For the SeniorSonic Meters the nominal pipe sizes for the meter housings include 100 mm to 900 mm (4" - 36"). The JuniorSonic Meters can be configured for pipe sizes from 100 mm to 600 mm (4" - 24").
88
22
44
88
Daniel should be consulted for larger pipe size availability.
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GENERAL UNIT SPECIFICATIONS NOV 2007
PRODUCT OVERVIEW 2-11
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

2.3.3 Pressure Range

In accordance with ANSI B16.5, the meter housings are available in ANSI Pressure Classes 300, 600, 900 and 1500.
Daniel should be consulted for higher pressures.

2.3.4 Flow Range Limits

The following tables, Table 2-2, Table 2-3, Table 2-4, Table 2-5, and the following figures, Figure 2-9, Figure 2-10, Figure 2-11, Figure 2-12, can
be used to indicate flow range at reference conditions for SeniorSonic
TM
Meters of 100 mm to 900 mm (4" to 36").
Daniel should be consulted before establishing the actual meter capacity for a particular application.
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NOV 2007 GENERAL UNIT SPECIFICATIONS
2-12 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
The meter capacity at reference (base) conditions of pressure and temperature may be calculated using the following formula (see Equation 2-1):
37 =
1 701 701
44
Equation 2-1 Meter Capacity - Reference Conditions of Pressure and Temperature
Where
Qref = flow rate at reference conditions (Nm3/h, Scfh)
Pref = absolute pressure at reference conditions (Pa; psia)
Tref = absolute temperature at reference conditions (K; R)
=
701 1
37=
701 1 1
Qf = low rate at operating conditions (m3/h, cfh)
Pf = absolute pressure at flowing conditions (Pa; psia)
Tf = absolute temperature at flowing conditions (K; R)
Zf = compressibility of gas at flowing conditions
Zref = compressibility of gas at reference conditions
__________________________________________________________________________________________
GENERAL UNIT SPECIFICATIONS NOV 2007
PRODUCT OVERVIEW 2-13
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Table 2-2 SeniorSonic
Press. 4" 6" 8" 10" 12" 16" 20" 24" 30" 36"
100 0.18 0.40 0.70 1.10 1.57 2.47 3.89 5.62 9.08 13.07
200 0.34 0.77 1.33 2.09 2.97 4.69 7.38 10.67 17.23 24.82
300 0.50 1.14 1.98 3.11 4.42 6.98 10.97 15.87 25.63 36.91
400 0.67 1.52 2.64 4.16 5.91 9.33 14.67 21.22 34.27 49.34
500 0.84 1.92 3.33 5.24 7.44 11.75 18.48 26.72 43.15 62.14
600 1.02 2.33 4.03 6.35 9.02 14.23 22.39 32.38 52.29 75.30
700 1.21 2.75 4.75 7.49 10.64 16.79 26.41 38.20 61.69 88.83
800 1.40 3.17 5.50 8.67 12.30 19.42 30.54 44.17 71.33 102.72
900 1.59 3.61 6.26 9.87 14.01 22.11 34.78 50.30 81.23 116.97
1000 1.79 4.07 7.04 11.10 15.75 24.87 39.11 56.57 91.35 131.54
1100 1.99 4.53 7.84 12.36 17.54 27.68 43.54 62.98 101.70 146.45
1200 2.20 5.00 8.65 13.64 19.36 30.56 48.06 69.52 112.26 161.66
1300 2.41 5.47 9.48 14.94 21.21 33.48 52.66 76.16 122.99 177.11
1400 2.62 5.96 10.32 16.26 23.08 36.44 57.31 82.89 133.86 192.76
TM
Minimum Flow Rates Schedule 40 Bore
1500 2.83 6.45 11.16 17.60 24.98 39.43 62.02 89.70 144.85 208.59
1600 3.05 6.94 12.01 18.94 26.88 42.44 66.74 96.53 155.89 224.48
1700 3.27 7.43 12.87 20.29 28.79 45.45 71.49 103.40 166.97 240.44
1800 3.48 7.92 13.72 21.63 30.69 48.45 76.21 110.23 178.00 256.32
1900 3.70 8.41 14.56 22.96 32.58 51.44 80.91 117.02 188.98 272.13
2000 3.91 8.89 15.40 24.28 34.45 54.39 85.55 123.73 199.81 287.73
Flow rates are based upon 3fps
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NOV 2007 GENERAL UNIT SPECIFICATIONS
2-14 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Table 2-3 SeniorSonic
Pressure 4" 100'/s 6" 100'/s 8" 100' /s 10" 90'/s 12" 90'/s 16" 85'/s 20" 85'/s 24" 85's 30" 85'/s 36" 75'/3
100 5.92 13.46 23.32 33.08 46.95 70.01 110.11 159.26 257.18 326.76
200 11.24 25.56 44.27 62.81 89.14 132.92 209.06 302.37 488.28 620.41
300 16.71 38.02 65.83 93.41 132.57 197.67 310.90 449.67 726.16 922.65
400 22.34 50.83 88.02 124.89 177.25 264.29 415.69 601.23 970.90 1233.62
500 28.14 64.01 110.85 157.28 223.21 332.82 523.48 757.13 1222.66 1553.49
600 34.10 77.57 134.32 190.59 270.48 403.30 634.33 917.46 1481.58 1882.47
700 40.22 91.51 158.46 224.83 319.08 475.77 748.32 1082.32 1747.80 2220.74
800 46.51 105.81 183.23 259.98 368.96 550.15 865.30 1251.51 2021.03 2567.89
900 52.96 120.49 208.65 296.05 420.16 626.48 985.36 1425.16 2301.45 2924.19
1000 59.56 135.51 234.65 332.94 472.51 704.53 1108.13 1602.72 2588.19 3288.52
1100 66.31 150.87 261.25 370.68 526.07 784.40 1233.74 1784.40 2881.58 3661.30
1200 73.20 166.53 288.37 409.16 580.68 865.83 1361.82 1969.65 3180.72 4041.38
1300 80.19 182.45 315.93 448.27 636.19 948.59 1492.00 2157.93 3484.77 4427.70
1400 87.28 198.57 343.85 487.88 692.40 1032.41 1623.83 2348.60 3792.67 4818.92
TM
Maximum Flow Rates Schedule 40 Bore
1500 94.45 214.88 372.09 527.95 749.27 1117.20 1757.19 2541.49 4104.16 5214.70
1600 101.65 231.25 400.44 568.18 806.36 1202.33 1891.09 2735.15 4416.90 5612.06
1700 108.87 247.69 428.91 608.58 863.69 1287.81 2025.54 2929.61 4730.93 6011.06
1800 116.06 264.05 457.24 648.78 920.74 1372.88 2159.33 3123.12 5043.42 6408.12
1900 123.22 280.34 485.44 688.78 977.51 1457.53 2292.48 3315.69 5354.40 6803.24
2000 130.28 296.40 513.26 728.26 1033.54 1541.08 2423.89 3505.75 5661.33 7193.22
Flow rates are based upon 3fps
__________________________________________________________________________________________
GENERAL UNIT SPECIFICATIONS NOV 2007
PRODUCT OVERVIEW 2-15
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Figure 2-9 4”-12” SeniorSonic
TM
Schedule 40 Graph
_________________________________________________________________________________________
NOV 2007 GENERAL UNIT SPECIFICATIONS
2-16 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Figure 2-10 16”-36” SeniorSonic
TM
Schedule 40 Graph
__________________________________________________________________________________________
GENERAL UNIT SPECIFICATIONS NOV 2007
PRODUCT OVERVIEW 2-17
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Table 2-4 SeniorSonic
Pressure
100 0.16 0.36 0.64 1.00 1.42 2.25 3.53 5.11
200 0.31 0.69 1.21 1.91 2.70 4.27 6.71 9.69
300 0.45 1.03 1.80 2.84 4.01 6.35 9.98 14.42
400 0.61 1.38 2.41 3.79 5.36 8.49 13.34 19.27
500 0.76 1.73 3.04 4.77 6.75 10.69 16.80 24.27
600 0.93 2.10 3.68 5.78 8.18 12.96 20.36 29.41
700 1.09 2.48 4.34 6.82 9.65 15.29 24.01 34.70
800 1.26 2.86 5.02 7.89 11.16 17.68 27.77 40.12
900 1.44 3.26 5.71 8.99 12.71 20.13 31.62 45.69
1000 1.62 3.67 6.43 10.10 14.30 22.64 35.56 51.38
1100 1.80 4.08 7.15 11.25 15.92 25.20 39.59 57.21
1200 1.99 4.51 7.90 12.42 17.57 27.82 43.70 63.14
1300 2.18 4.94 8.65 13.60 19.25 30.48 47.88 69.18
1400 2.37 5.37 9.42 14.81 20.95 33.17 52.11 75.29
4" 6" 8" 10" 12" 16" 20" 24"
TM
Minimum Flow Rate Schedule 80
1500 2.57 5.82 10.19 16.02 22.67 35.90 56.39 81.48
1600 2.76 6.26 10.97 17.24 24.40 38.63 60.69 87.68
1700 2.96 6.70 11.74 18.47 26.13 41.38 65.00 93.92
1800 3.15 7.15 12.52 19.69 27.86 44.11 69.29 100.12
1900 3.35 7.59 13.29 20.90 29.58 46.83 73.57 106.30
2000 3.54 8.02 14.05 22.10 31.27 49.52 77.78 112.39
Flow rates are based upon 3fps
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NOV 2007 GENERAL UNIT SPECIFICATIONS
2-18 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Table 2-5 SeniorSonic
Pressure
100 5.36 12.15 21.28 30.12 42.62 63.73 100.12 144.65
200 10.17 23.07 40.41 57.19 80.92 121.00 190.08 274.65
300 15.13 34.30 60.09 85.05 120.34 179.95 282.69 408.45
400 20.23 45.86 80.35 113.72 160.90 240.60 377.96 546.11
500 25.47 57.76 101.18 143.20 202.62 302.99 475.97 687.71
600 30.87 69.99 122.61 173.53 245.53 367.15 576.76 833.35
700 36.42 82.56 144.64 204.71 289.65 433.13 680.40 983.09
800 42.11 95.47 167.25 236.71 334.92 500.84 786.76 1136.78
900 47.95 108.72 190.45 269.55 381.40 570.33 895.93 1294.51
1000 53.93 122.26 214.18 303.14 428.91 641.39 1007.55 1455.79
1100 60.04 136.12 238.46 337.50 477.53 714.09 1121.77 1620.81
1200 66.27 150.25 263.21 372.54 527.11 788.22 1238.22 1789.07
1300 72.61 164.62 288.38 408.15 577.49 863.57 1356.58 1960.09
1400 79.02 179.16 313.86 444.21 628.52 939.88 1476.45 2133.28
4" 6" 8" 10" 12" 16" 20" 24"
TM
Maximum Flow Rate Schedule 80
1500 85.51 193.88 339.63 480.70 680.14 1017.07 1597.71 2308.48
1600 92.03 208.65 365.51 517.32 731.97 1094.57 1719.45 2484.39
1700 98.57 223.48 391.50 554.10 784.01 1172.39 1841.70 2661.02
1800 105.08 238.25 417.36 590.71 835.80 1249.83 1963.35 2836.79
1900 111.56 252.94 443.09 627.13 887.33 1326.89 2084.41 3011.71
2000 117.95 267.44 468.49 663.08 938.19 1402.95 2203.89 3184.35
Flow rates are based upon 3fps
__________________________________________________________________________________________
GENERAL UNIT SPECIFICATIONS NOV 2007
PRODUCT OVERVIEW 2-19
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Figure 2-11 4”-12” SeniorSonic
TM
Schedule 80 Graph
_________________________________________________________________________________________
NOV 2007 GENERAL UNIT SPECIFICATIONS
2-20 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Figure 2-12 16”-24” SeniorSonic
TM
Schedule 80 Graph
__________________________________________________________________________________________
GENERAL UNIT SPECIFICATIONS NOV 2007
PRODUCT OVERVIEW 2-21
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

2.3.5 Flange Facing

The meter housings are available with raised face or ring-type joint flange facings. Consult Daniel Industries, Inc. for others.

2.3.6 Gas Temperature Range

The gas temperature ranges for the standard T-2 transducer, the T-11 transducer, the T-12 and T-17 transducer are as follows:
Standard T-2 -20° C to 55° C (-4° F to 131° F)
T-11 -20° C to +100° C (-4° F to 212° F)
T-12 -20° C to +100° C (-4° F to 212° F)
T-17 -20° C to +100° C (-4° F to 212° F)
Consult Daniel for higher temperature applications.

2.3.7 Repeatability

Repeatability precision is ±0.2% of reading in the specified velocity range.

2.3.8 Accuracy Limits

SeniorSonic
TM
accuracy limits are typically ±0.5% without a flow calibration. This accuracy can be certified at reference conditions with a flow calibration.
TM
JuniorSonic
accuracy limits are typically ±1% without a flow calibration.

2.4 ELECTRONIC SPECIFICATIONS

2.4.1 Power

The total power consumption for the UFM does not exceed 15 Watts, as supplied by AC (115/230 VAC ± 10%, 47 to 63 Hz) or DC (24 VDC ± 10%).
Unregulated, isolated power of 24 VDC at 50 mA is provided for temperature and pressure transmitters.
_________________________________________________________________________________________
NOV 2007 ELECTRONIC SPECIFICATIONS
2-22 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter

2.4.2 Analog Inputs

The DFI provides for one temperature analog input signal and one pressure analog input signal. The input range for each analog input is 4­20 mA or 1-5 V, depending on which Peripheral Field Connection (PFC) board is installed. The analog-to-digital accuracy is within ±0.05% of full scale over the operating temperature range.

2.4.3 Outputs

All outputs are opto-isolated from the main DFI board (with a withstand of at least 500 Volt rms dielectric).

2.4.4 Digital Outputs

There are two supported configurations for the digital output circuits: internally powered and “open collector”. Jumpers on the PFC board are used to set these configurations. DFI jumpers JP4, JP7, JP8, JP9, JP10, JP6, and JP5 (see Figure 2-13) should always be installed. Maximum cable length for the digital outputs should not exceed 2000 feet.
__________________________________________________________________________________________
ELECTRONIC SPECIFICATIONS NOV 2007
PRODUCT OVERVIEW 2-23
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Jumper JP4
Jumpers
JP7, JP8 JP9, JP10 JP6
, & JP5
Figure 2-13 DFI Board
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NOV 2007 ELECTRONIC SPECIFICATIONS
2-24 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Internally powered mode
Outputs are powered from an internal 5 VDC bus. Set PFC board jumpers JP5 and JP6 (see Figure 2-15) to the “A” position.
JP1 = Freq1A
JP2 = Freq1B
JP3 = Freq2A
JP4 = Freq2B
JP5 = DIR JP6 = Validity
Figure 2-14 1-5V Peripheral Field Connection Bd. (PFC)
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ELECTRONIC SPECIFICATIONS NOV 2007
PRODUCT OVERVIEW 2-25
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
JP1 = Freq1A
JP2 = Freq1B
JP3 = Freq2A
JP4 = Freq2B
Figure 2-15 4-20 mA Peripheral Field Connection Bd. (PFC)
JP5 = DIR JP6 = Validity
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NOV 2007 ELECTRONIC SPECIFICATIONS
2-26 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
The digital output logic level voltage definition and drive capability are as follows: (see Table 2-6)
Table 2-6 Voltage Level and Drive Capability per Logic Level
Logic Value
0 < 0.7 V maximum sinking
1 > 3.5 V maximum sourcing
“Open Collector” mode
Applied input voltage on each line should not exceed 30 VDC. Set PFC board jumpers JP5 and JP6 to the “B” position. Maximum current sinking or sourcing must not exceed 50 mA.

2.4.5 Frequency Outputs

The range of the frequency outputs is user-selectable as either 0-1000 Hz or 0-5000 Hz. The worst case frequency output granularity is 3 Hz at 5000 Hz. The accuracy of the volume represented by the frequency outputs is within ±0.01%.
Voltage Level Drive Capability
current: 50 mA
current: 50 mA
The output mode for the frequency output lines is set via jumpers on the PFC board. The maximum cable length is 2000 feet except when the “open collector” mode is selected. For that configuration with a pull-up resistor of 1K ohms the maximum length is 400 feet when 0-5000 Hz is set, or 1000 feet for 0-1000 Hz.
__________________________________________________________________________________________
ELECTRONIC SPECIFICATIONS NOV 2007
PRODUCT OVERVIEW 2-27
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Internally powered mode
Outputs are powered from an internal 5 VDC bus. Set PFC board jumpers JP1, JP2, JP3, and JP4 to the “A” position. For the digital output logic level voltage definition and drive capabilities, see Table 2-7.
Table 2-7 Voltage Level and Drive Capability per Logic Level
Logic Value
0 < 0.7 V maximum sinking
1 > 3.5 V maximum sourcing
“Open Collector” mode
Applied input voltage on each line should not exceed 30 VDC. Set PFC board jumpers JP1, JP2, JP3, and JP4 to the “B” position. Maximum current sinking or sourcing must not exceed 50 mA.

2.4.6 Analog Output

The analog output is a 4-20 mA current output with a zero scale offset error within ±0.1% of full scale and a gain error within ±0.2% of full scale. The total output drift is within ±50 ppm of full scale per ºC.

2.5 SAFETY

Voltage Level Drive Capability
current: 50 mA
current: 50 mA
Suitable for use in Class 1, Division 1, Groups C and D hazardous locations.
Cenelec version is suitable for installation in a Zone 1 Gas Group 11B Temperature Class T4 Hazardous area as defined in BS EN 60079-10:
1996.
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NOV 2007 SAFETY
2-28 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter

2.6 COMMUNICATIONS

The DFI provides two serial communication ports which are referred to as Port A and Port B. Port A is expected to be used for communication with a flow computer and Port B is expected to be used for diagnostic purposes (such as communicating with a personal computer running a utility program). Both ports are Modbus Slaves, neither is a Master.
The Modbus communication protocol, Modbus address, driver and baud rate are selectable via switches and jumpers; the selections are summarized in Table 2-8.

Table 2-8 DFI Serial Communication Outputs

Port A Port B
Communication Protocol
Modbus Address 1 - 32 (selected Modbus Address applies to both ports)
Driver
Baud Rate 1200, 2400, 4800, or 9600 2400 or 9600
When Belden wire No.9940 or equivalent is used, the maximum cable length for the RS-232C communication cable is 88.3 meters (250 ft). and the maximum cable length for the R S-485 communication cable is 600 meters (1970 ft).
ASCII Modbus (7 data bits, even parity, 1 stop bit) or RTU Modbus (8 data bits, no parity, 1 stop bit) (selected protocol applies to both ports)
RS-232C (RTS/CTS handshaking optional) or RS-485 (can be
multi-dropped)
RS-232C (no handshaking) or R S-4 8 5 (no m ulti-dro p )
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COMMUNICATIONS NOV 2007
PRODUCT OVERVIEW 2-29
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

2.7 FCC COMPLIANCE

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communica­tions. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
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NOV 2007 FCC COMPLIANCE
2-30 PRODUCT OVERVIEW
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
This page is intentionally left blank.
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FCC COMPLIANCE NOV 2007
INSTALLATION 3-1
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
3

INSTALLATION

3.0 INSTALLATION INSTRUCTIONS

DEATH OR SERIOUS INJURY MAY OCCUR
Hazardous Voltage Inside
Before installation of an Ultrasonic Flow Meter, all electrical power supplied to the unit should be switched OFF or disconnected.
There are two scenarios for installing a DFI:
installing both a DFI and a USM
installing the DFI as an add-on to an existing USM
Both scenarios are covered in this section.
DEATH OR SERIOUS INJURY MAY OCCUR
Hazardous Voltage Inside
Do not open in flammable gas area. Failure to follow the instructions in this manual may result in serious injury or death.
DEATH OR SERIOUS INJURY MAY OCCUR
Explosion Hazard
Do not disconnect equipment unless power has been removed or the area is known to be non-hazardous.
This section discusses the electronics configuration and mechanical installation of the meter.
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JUNE 2006 Installation Instructions
3-2 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter

3.1 USM LIFTING INSTRUCTIONS AND PRECAUTIONS

DEATH OR SERIOUS INJURY MAY OCCUR
Lifting Hazard
Read, Understand, and Follow all instructions contained in this section prior to lifting the Daniel Ultrasonic Meter.
DEATH OR SERIOUS INJURY MAY OCCUR
Lifting Daniel Ultrasonic Meter with Other Equipment
The following lifting instructions are for installation and removal of the Daniel Ultrasonic Meter ONLY. The instructions below do not address lifting the Daniel ultrasonic meter while it is attached, bolted, or welded to meter tubes, piping, or other fittings.
Using these instructions to maneuver the Daniel Ultrasonic Meter while it is still attached, bolted, or welded to a meter tube, piping, or other fitting may result in equipment damage, serious injury, or death.
The operator must refer to their appropriate company's hoisting and rigging standards, or the "DOE-STD-1090-2004 Hoisting and Rigging" standard if such company standards do not exist, for lifting and maneuvering any assembled meter tube and associated piping.
A Daniel Ultrasonic Meter can be safely lifted and maneuvered into and out of a meter run for installation or service by obeying the following instructions.
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USM Lifting Instructions and Precautions JUNE 2006
INSTALLATION 3-3
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
When lifting only a Daniel Ultrasonic Meter by itself, Daniel recommends two methods. These methods are;
1. Using an appropriately rated Safety Engineered Swivel Hoist Rings Installed in the Daniel Ultrasonic Meter end flanges (Refer to Section
3.1.1)
2. Using appropriately rated lifting slings positioned at designated areas of the Daniel Ultrasonic Meter (Refer to Section 3.1.2)
Both methods must be used in conjunction with all appropriate company hoisting and rigging standards or the DOE-STD-1090-2004 HOISTING AND RIGGING standard if such company standards do not exist. Refer to the following sections for more information on these two methods.
DEATH OR SERIOUS INJURY MAY OCCUR
Lifting Hazard
Lifting Hazard for Daniel Ultrasonic meters with Original Equipment Eyebolts
For Daniel Ultrasonic meters with threaded eyebolts, the eyebolts may be safely used to lift the meter if ALL of the following conditions are met:
• They have been inspected and show no signs of corrosion, scarring, or damage (including bending)
• They have not been left in the meter after installation and exposed to the environment
• A spread bar is used during lifting to eliminate angular loading
If any of the conditions described above can not be met, the operator must remove, destroy, and discard the "Eye Bolt" immediately and use slings around meter body as outlined in these instructions in conjunction with company approved hoisting and rigging procedures or the DOE-STD-1090-2004 HOISTING AND RIGGING standard if such company standards do not exist.
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JUNE 2006 USM Lifting Instructions and Precautions
3-4 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter

3.1.1 Use of Appropriate Safety Engineered Swivel Hoist Rings in Ultrasonic Meter End Flanges

All Daniel Ultrasonic meters come equipped with a tapped hole located on the top of each meter body end flange. A flat machined surface surrounds each tapped hole (See Figure 3-1). This feature provides complete surface contact ONLY between the meter flange and an OSHA compliant Safety Engineered Swivel Hoist Ring as shown below (See Figure 3-2).
Operators SHALL NOT use Eye Bolts (see Figure 3-2) in the Daniel Ultrasonic Meter flange tapped holes to aid in lifting or maneuvering the unit.
Operators SHALL NOT use other Hoist Rings that do not fully seat flush with the counter bore on the top of the meter flanges.
Plug Bolt
Figure 3-1 Meter End Flange with Tapped Flat-Counterbore Hole for Hoist Ring
Flat Counterbore Surface
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USM Lifting Instructions and Precautions JUNE 2006
INSTALLATION 3-5
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Saftey Engineered Swivel Hoist Ring
Figure 3-2 Safety Approved Hoist Ring and Non-Compliant Eye Bolt
Eye Bolt
Safety Precautions Using Safety Engineered Swivel Hoist Rings on Daniel Ultrasonic Meters
Read and follow the Safety Precautions listed below:
1. Meters must only be lifted by personnel properly trained in the safe practices of rigging and lifting.
2. Remove the plug bolts installed in the tapped holes on the top of the flanges. Do not discard the bolts as they must be reinstalled once the lifting operation is complete to prevent corrosion of the tapped holes.
3. Make sure the tapped holes on the meter are clean and free of debris before installing the hoist rings.
4. Use only the Safety Engineered Swivel Hoist Rings that are rated for lifting the meter. Do not use any other type of hoist rings with the same screw size or heavy duty hoist rings. The meter tapping and counter bore size are suitable only for the hoist rings specified by Daniel.
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JUNE 2006 USM Lifting Instructions and Precautions
3-6 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
5. When installing a hoist ring, make sure the base surface of the hoist ring fully contacts the machined flat surface of the tapped hole. If the two surfaces do not come in contact then the hoist ring will not hold its full rated load. Torque the hoist ring attachment bolts to the limit indicated on the hoist rings.
6. After installation of the hoist rings, always check that the ring rotates and pivots freely in all directions.
7. NEVER attempt to lift the meter using only one hoist ring.
8. Always use separate slings to each hoist ring. NEVER reeve one sling through both hoist rings. The slings must be of equal length. Each sling must have a load rating that equals or exceeds the hoist ring load rating. The angle between the two slings going to the hoist rings must never exceed 90 degrees or the load rating of the hoist rings will be exceeded.
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USM Lifting Instructions and Precautions JUNE 2006
INSTALLATION 3-7
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
9. NEVER allow the slings to contact the electronics enclosure. Damage to the enclosure may occur. If the slings do come in contact with the electronic enclosure then remove the two bolts holding the enclosure to its base and temporarily remove the head from the meter during the lifting operation. You will need to unplug the cable from J3 on the Acquisition Module. Two screws hold this cable in place.
Once the lifting operation is complete, reattach and secure the electronics cable to J3 on the Acquisition Module, return the electronics enclosure to its original position, replace the bolts, and secure the enclosure in place. Lifting the meter with the upper enclosure installed but with out the bolts installed, may cause the electronics to fall and cause personal injury or equipment damage.
10.NEVER apply shock loads to the meter. Always lift the meter gradually. If shock loading ever occurs, the hoist ring must be inspected per manufacturer's recommendations prior to be placed in any further service. If a proper inspection cannot be performed, discard the hoist ring.
11. NEVER lift with any device, such as hooks, chains, or cables that could create side pulls that could damage the ring of the hoist ring.
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JUNE 2006 USM Lifting Instructions and Precautions
3-8 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
12.NEVER lift more than the ultrasonic meter assembly including electronics and transducers with the hoist rings. The only exception is that it is safe to lift the meter with one ASME B16.5 or ASME B16.47 blind flange bolted to each end flange of the meter. NEVER use the hoist rings on the meter to lift other components such as meter tubes, piping or fittings attached to the meter. Doing so will exceed the load rating of the hoist rings.
13.Remove the hoist rings from the meter after lifting is completed and store them in an appropriate case or container per their manufacturer's recommendation.
14.Apply heavy lubricant or anti-seize to the threads of the plug bolts and reinstall the plug bolts to keep the tapped holes free of debris and to prevent corrosion.
How to Obtain Safety Engineered Swivel Hoist Rings
The following is a list of manufacturers of approved safety engineered hoist rings:
American Drill Bushing Company ( www.americandrillbushing.com
Carr Lane Manufacturing Company (www.carrlane.com)
The following is a list of known suppliers that can supply these safety­engineered hoist rings. This is not intended to be a complete list.
•Fastenal (www.fastenal.com)
Reid Tools (www.reidtool.com)
)
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USM Lifting Instructions and Precautions JUNE 2006
INSTALLATION 3-9
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
The appropriate hoist rings can also be purchased directly from Daniel. The following table provides part numbers for reference:
Daniel Part Number*
1-504-90-091 3/8"-16UNC, 1000 lb. 23053 CL-1000-SHR-1
1-504-90-092 1/2"-13UNC, 2500 lb 23301 CL-23301-SHR-1
1-504-90-093 3/4"-10UNC, 5000 lb. 23007 CL-5000-SHR-1
1-504-90-094 1"-8UNC, 10000 lb. 23105 CL-10000-SHR-1
1-504-90-095 1-1/2"-6UNC, 24000 lb. 23202 CL-24000-SHR-1
* The part numbers include only one hoist ring. Two hoist rings are required per meter.
Hoist Ring Thread Size & Load rating
American Drill Bushing Co. P/N*
Carr Lane Manufacturing Co. P/N*
What Size Safety Engineered Swivel Hoist Ring Do You Need
To determine the size of the hoist rings required for your meter, use the appropriate table below. Look down the column that matches the ANSI rating of your meter. Find the row that contains your meter size. Follow the row to the end to find the appropriate hoist ring part number.
Table 3-1 Hoist Ring Lookup Table for Daniel Gas SeniorSonic
ANSI 300 ANSI 600 ANSI 900 ANSI 1500
TM
Meters*
Daniel Part Number
4" to 10” 4" to 8” 4" to 8” 4" to 6” 1-504-90-091
12" to 18” 10" to 16” 10" to 12” 8" to 10” 1-504-90-092
20" to 24” 18" to 20” 16" to 20” 12” 1-504-90-093
30" to 36” 24" to 30” 24” 16" to 20” 1-504-90-094
36” 30" to 36” 24" to 36” 1-504-90-095
*4" to 6" 45 degree meters and 8" to 36" 60 degree meters
Table 3-2 Hoist Ring Lookup Table for Daniel Gas JuniorSonic
ANSI 300 ANSI 600 ANSI 900 ANSI 1500
4" to 12” "4"to 8” 4" to 8” 4" to 6” 1-504-90-091
16" to 18” 10" to 16” 10" to 12” 8" to 10” 1-504-90-092
20" to 30” 18" to 20” 16" to 20” 12” 1-504-90-093
36” 24" to 30” 24” 16" to 20” 1-504-90-094
36” 30" to 36” 24" to 36” 1-504-90-095
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JUNE 2006 USM Lifting Instructions and Precautions
TM
Meters
Daniel Part Number
3-10 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter

3.1.2 Using Appropriately Rated Lifting Slings on Daniel Ultrasonic Meters

The following instructions are intended to provide general guidelines for proper slinging of a Daniel Ultrasonic meter by itself. They are intended to be followed in addition to your company's standards or the DOE-STD- 1090-2004 HOISTING AND RIGGING standard if such company standards do not exist.
Safety Precautions Using Appropriate Rated Lifting Slings on Daniel Ultrasonic Meters
Read and follow the Safety Precautions listed below:
1. Meters must only be lifted by personnel properly trained in the safe
practices of rigging and lifting.
2. NEVER attempt to lift the meter by wrapping slings around the
electronics.
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USM Lifting Instructions and Precautions JUNE 2006
INSTALLATION 3-11
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
3. NEVER attempt to lift the meter using only one sling around the meter. Always use two slings wrapped around each end of the body as shown below. A choker style sling is recommended.
4. Visually inspect the slings prior to use for any signs of abrasion or other damage. Refer to the sling manufacturer's procedures for proper inspection of the particular sling you are using.
5. Only use slings with ratings that exceed the weight to be lifted. Reference your company's standards for safety factors that must be included when calculating the load rating.
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JUNE 2006 USM Lifting Instructions and Precautions
3-12 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
6. NEVER allow the slings to contact the electronics enclosure or transducer cabling. Damage to the enclosure or cabling may occur. If the slings do come in contact with the electronic enclosure then remove the two bolts holding the enclosure to its base and temporarily remove the head from the meter during the lifting operation. You will need to unplug the cable from J3 on the Acquisition Module. Two screws hold this cable in place.
Once the lifting operation is complete, reattach and secure the electronics cable to J3 on the Acquisition Module, return the electronics enclosure to its original position, replace the bolts, and secure the enclosure in place. Lifting the meter with the upper enclosure installed but with out the bolts installed, may cause the electronics to fall and cause personal injury or electronics damage.
7. NEVER apply shock loads to the meter. Always lift the meter gradually. If shock loading ever occurs, the slings must be inspected per manufacturer's procedures prior to being placed in any further service.
__________________________________________________________________________________________
USM Lifting Instructions and Precautions JUNE 2006
INSTALLATION 3-13
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

3.2 JUMPER AND SWITCH SETTINGS

Before beginning the mechanical installation, the various jumpers and switches should be set to their proper position while they are easily accessible.

3.2.1 USM Communication Settings

In order for the DFI to communicate with the USM Host processor on the CPU board, the following default settings must be used:
The CPU board must be configured to 9600 baud ASCII Modbus communication with Modbus Address 32 (all CPU board JP7 jumpers must be set to the “open” or “no jumper” position). See Section 5.3.3 for details on setting Host processor communication settings.
The USM firmware must be revision 5.62 or later for revision A CPU boards and revision 5.80 or later for revision B or later CPU boards in order to operate correctly with the DFI option.
For CPU switch and jumper settings see Figure 3-3.
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JUNE 2006 Jumper and Switch Settings
3-14 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Jumper JP9
JP7 Jumpers
Figure 3-3 CPU Board Switch and Jumper Settings
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Jumper and Switch Settings JUNE 2006
INSTALLATION 3-15
Daniel Ultrasonic Gas Flow Meter __________________________________________________________

3.2.2 DFI Communication Settings

The DFI external serial communication parameters are set via two banks of DIP switches on the DFI board, a sliding switch on the PFC board, and six jumpers on the PS board. The use of switches and jumpers (outlined in this section) was chosen so that the PFC and PS boards could be used as part of the USM whether or not the DFI option is used.
The two DFI board switch banks (see Figure 3-4) are identified as Switch Bank 1 (four switches) and Switch Bank 2 (eight switches). For both switch banks, a switch in the “ON” or upper position (as indicated on the switch) corresponds to a logic 0 and a switch in the lower (“OFF”) position corresponds to a logic 1. See Figure 3-7 for the switch bank specifications.
JP2 Jumper
Switch Bank #2
Figure 3-4 DFI Board Showing Switch Banks
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JUNE 2006 Jumper and Switch Settings
Switch Bank #1
3-16 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Serial Communication Port Driver
The driver to be used for each serial communication port is selectable between RS-232C and RS-485 by using Field Connection board switch S1 (see Figure 3-5) and PS board jumpers JP1 through JP6. See Figure 3-6 and see Table 3-3 along with the wiring connections.
Switch S1
Figure 3-5 Field Connection Board Showing Switch S1
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Jumper and Switch Settings JUNE 2006
INSTALLATION 3-17
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Jumpers JP1 thru JP6
Figure 3-6 Power Supply Board Jumpers
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JUNE 2006 Jumper and Switch Settings
3-18 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Table 3-3 Serial Communication Port Driver Selection and Wiring
Po rt A Wi rin g
Port A
Port A
driver
driver
RS-485 RS -485 485+
RS-485 RS -485 485+
RS-485 RS -232C 485+
RS-485 RS -232C 485+
RS-232C RS-232 C 232TXD
RS-232C RS-232 C 232TXD
RS-232C RS -485 232TXD
RS-232C RS -485 232TXD
* RS-232C handshaking signals (RTS/CTS) are optional for Port A.
* RS-232C handshaking signals (RTS/CTS) are optional for Port A.
Port B
Port B driver
driver
Po rt A Wi rin g
Connecti ons
Connecti ons
Wire Con necto r Wire Con nector S1 JP1 JP2 JP3 JP4 JP5 JP6
Wire Con necto r Wire Con nector S1 JP1 JP2 JP3 JP4 JP5 JP6
485+
485-
485-
485C
485C
485-
485-
485C
485C
232RXD
232RXD
232C
232C
232RTS*
232RTS* 232CTS*
232CTS*
232RXD
232RXD
232C
232C
232RTS*
232RTS* 232CTS*
232CTS*
485+ 485-
485-
485C
485C
485+
485+ 485-
485-
485C
485C
TXD
TXD RXD
RXD
232C
232C
RTS
RTS CTS
CTS
TXD
TXD RXD
RXD
232C
232C
RTS
RTS CTS
CTS
Port B Wiring
Port B Wiring
Connecti ons
Connecti ons
485+
485+
485-
485-
485C
485C
232TXD
232TXD 232RXD
232RXD
232C
232C
232TXD
232TXD 232RXD
232RXD
232C
232C
485+
485+
485-
485-
485C
485C
RTS
RTS
RXD
RXD
232C
232C
TXD
TXD RXD
RXD
232C
232C
485+
485+
485-
485-
485C
485C
485+
485+
485-
485-
485C
485C
PFC
PFC
Board
Board
closed c losed c losed c losed closed closed
EIA485
EIA485
EIA485 closed c losed c losed open open open
EIA485 closed c losed c losed open open open
RS232 open open open open open open
RS232 open open open open open open
RS232 closed closed closed open open open
RS232 closed closed closed open open open
closed c losed c losed c losed closed closed
PS Board
PS Board
Figure 3-7 DFI Board Switch Banks for S1 and S2
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Jumper and Switch Settings JUNE 2006
INSTALLATION 3-19
Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Modbus Address
The Modbus Address has a range of 1-32 and applies to both external serial communication ports. The desired address is set via Switch Bank 2 switches 1 through 5 (see Figure 3-4). The desired address is the binary value of the five switches plus one. Examples of how to set the Modbus Address are shown in Table 3-4
Table 3-4 Modbus Address.
S2 Switches Switch
54321
0 (ON) 0 (ON) 0 (ON) 0 (ON) 0 (ON) 0 1
0 (ON) 1 (OFF) 0 (ON) 0 (ON) 1 (OFF) 9 10
1 (OFF) 0 (ON) 0 (ON) 1 (OFF) 1 (OFF) 19 20
1 (OFF) 1 (OFF) 1 (OFF) 1 (OFF) 1 (OFF) 31 32
Switch 5 in Table 3-4 is the most significant bit; switch 1 is the least significant bit. The shaded area is the default settings.
Decimal
Equivalent
Modbus Address
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JUNE 2006 Jumper and Switch Settings
3-20 INSTALLATION
___________________________________________________________Daniel Ultrasonic Gas Flow Meter
Port A Baud Rate
The external serial communication port A baud rate is selected via Switch Bank 2 switches 6 and 7 (see Figure 3-4) and as shown in
Table 3-5.
Table 3-5 Port A Baud Rate
S2 Switches
76
0 (ON) 0 (ON) 1200
0 (ON) 1 (OFF) 2400
1 (OFF) 0 (ON) 4800
1 (OFF) 1 (OFF) 9600
The shaded area in Table 3-3 is the default settings.
Port A
Baud Rate
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Daniel Ultrasonic Gas Flow Meter __________________________________________________________
Modbus Protocol
Both external serial communications ports must use the same Modbus protocol (either ASCII or RTU). The protocol to be used is selected via Switch Bank 2 switch 8 (see Figure 3-4) and as shown in
Table 3-6.
Table 3-6 Modbus Protocol for S2
S2 Switch 8 Selected Modbus Protocol
0 (ON) RTU Modbus: 8 data bits 1 stop bit no parity
1 (OFF) ASCII Modbus: 7 data bits 1 stop bit even parity
The shaded area in Table 3-4 is the default settings.
Port A Handshaking
If external serial communication port A is selected to use RS-232C (see below), then Switch Bank 1 switch 3 (see Figure 3-4) either enables handshaking (0, ON) or disables handshaking (1, OFF). When handshaking is enabled, port A expects both the RTS output and the CTS input to be active low.
Port B Baud Rate
The external serial communication port B baud rate is selected via Switch Bank 1 switch 4 (see Figure 3-4) as either 2400 baud (0, ON) or 9600 baud (1, OFF).
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3.3 MECHANICAL INSTALLATION

The Daniel Ultrasonic Gas Flow Meters are assembled, configured, and tested at the factory. The two main units include the Daniel Ultrasonic Meter housing with Base Unit and the Main Electronics Assembly.

3.3.1 Pipeline Meter Housing Installation

TM
Unidirectional flow - The SeniorSonic
meter housing requires a minimum 10 nominal pipe size diameter length of straight pipe upstream and a 5 nominal pipe size diameter length of straight pipe
down stream to achieve full accuracy. The JuniorSonic
TM
Meters require 20 diameters of straight upstream pipe and five diameters of down stream pipe to achieve accurate flow measurement.
Bi-directional flow - The meter housing requires a 10 nominal pipe size diameter length of straight pipe on each side for full accuracy for
TM
the SeniorSonic
and 20 diameters for the JuniorSonicTM.
The bore of the mating piping should be within 1% in order to comply with AGA9.
The Daniel Ultrasonic Meter housing is provided with dowel pins to align the meter housing bore with the bore of the mating piping.
The SeniorSonicTM meter housing must be mounted in horizontal piping with the chord paths horizontal. The JuniorSonic
TM
meter housing should be oriented so that the chord paths are oriented 45 degrees off vertical. Other meter housing orientations may allow liquid to collect in the transducer ports which can adversely affect the transducer signals.
Normally, the meter housing is installed so the electronics assembly is on the top of the meter. If there is insufficient space above the piping to accommodate this arrangement, the meter housing can be installed
TM
with the electronics assembly on the bottom (SeniorSonic
), or
ordered with extra long transducer cables for remote mounting.
A pressure tap is provided on the meter for pressure measurement.
The mating piping should include connections for temperature measurement, which are to be located a minimum of three nominal pipe diameters length down stream of the meter housing.
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If the meter housing is not fitted with a means to vent line pressure, the down stream piping section should be provided with a vent valve to allow line pressure to be vented for maintenance.

3.3.2 Main Electronics Assembly - Daniel Ultrasonic Meter Housing

Check that the serial number on the Ultrasonic Flow Transmitter matches the Daniel Ultrasonic Meter housing per the metrology report. System configuration and calibration is done with matched sets.
Remove the cover of the base electronics housing and attach it to the upper electronics housing. Connect the preamplifier cable to the driver/preamp module in the base housing. Install the upper housing onto the base housing.

3.3.3 Transducer Cables/Appropriate Transducer

The A1 cable should be connected to the transducer assembled in the meter housing transducer port A1. This procedure should then be repeated in numerical order for each one of the other transducers.
The meter housing ports are identified by stamped or cast lettering adjacent to the transducer port counter bore and on tags attached to the transducer flanges.
Remove the cap plug from the side of the electronics enclosure to expose the field wiring entry.
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3.3.4 For Systems Using Explosion-Proof Conduit

1. Assemble conduit to the electronics enclosure.
2. If the conduit pipe is two inches or more, a conduit seal is required within 18 inches (150 mm) of the enclosure.
3. Remove the end cap nearest the conduit entry to gain access to the Field Connection Board.
4. Check to make certain that all power to the field wiring is turned OFF.
5. Pull the wires.
6. Complete connections to the Field Connection Board.
7. If line power is used, set the power switch to the correct voltage supplied, either 115 VAC or 230 VAC.
8. Select the communications driver by setting the EIA 485/RS232 switch (see Figure 3-5).
9. Replace the end cap. If desired, secure the end caps to the housing with seal wires.
10.Apply the sealing compound to the conduit seal and allow to set in accordance with manufacturer specifications.
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3.3.5 For Systems that Use Flame-Proof Cable

1. Remove the end cap nearest the cable entries to gain access to the Field Connection Board.
2. Check to make certain that all power to the field wiring is turned OFF.
3. Install the cable and cable gland.
4. Make all connections to the Field Connection Board and Peripheral Field Connection Board.
5. If main power is used, set the power-selection switch to the correct voltage supplied, either 115 VAC or 230 VAC.
6. Select the communications driver by setting the EIA 485/RS232 switch.
7. Replace the end cap. If desired, secure the end caps to the housing with seal wires. Lock screws are also available on the end caps.
The customer has the option of selecting either a 24 Volt DC or 115/230 Volt AC Field Connection Board for the Ultrasonic Gas Flow Meter.
8. Connect a Flow Computer to the communications line on the
Ultrasonic Gas Flow Meter.
9. Connect electrical power to the unit.
10.Set or Configure the software in the Flow Computer.
For additional installation information refer to the system wiring diagram (see Appendix G).
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3.4 MEMORY PROTECTION

The protection of writable DFI Modbus registers that are stored in EEPROM and NOVRAM memory is controlled by DFI board jumper JP2 (see Figure 3-4). Specifically, Modbus Blocks 51, 53, 54 (except registers SpecFlowTemperature and SpecFlowPressure), and 56 are protected.
Beginning with firmware v3.62, the DFI memory protect jumper also protects the CPU board parameter registers (specifically all registers in Modbus Blocks 2, 3, 9, 10, and 11, and the registers ResetTrkParam and ResetProp in Block 4).
When JP2 is not installed, the registers are writable; when JP2 is installed, the registers are not writable. In addition, when memory is protected, the analog inputs and current output calibrations cannot be modified.
For firmware versions up to and including v3.34, this jumper (JP2 on the DFI board) only protects the DFI writable registers stored in EEPROM and NOVRAM; To protect the host processor writable registers stored in the EEPROM on the CPU board, install jumper JP9 on the CUP board (see Figure 3-3).

3.4.1 Message Block Check List

For Modbus Register Startup and Maintenance details see Figure 3-8 and
Figure 3-9.
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Figure 3-8 CPU Modbus Register Blocks 1 of 2
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Figure 3-9 CPU Modbus Register Blocks 2 of 2
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4

METER CONFIGURATION, FIRMWARE

The purpose of this section is to provide instructions on the operation of the DFI.

4.1 CONFIGURING THE DFI

This section describes the steps involved in configuring the DFI via the Modbus registers. See APPENDIX D, for the Modbus register definitions.
See Section 5 for detailed specifications regarding these configurations.
The DFI board jumper JP2 is used to prevent changes to DFI board parameter registers (Modbus Blocks 51, 53, 54, and 56) and to prevent analog input and current output calibrations. The jumper must be removed prior to configuring the DFI board. After the configuration is completed jumper JP2 can be inserted to prevent future changes to the DFI board parameters and calibration values.

4.1.1 Set Real-Time Clock

It is recommended that the real-time clock be set prior to changing any other Modbus registers so that event and data records are logged with the correct date and time. The Modbus Block 52 registers are used for reading and setting the real-time clock. See APPENDIX D, for register information.
These registers must be read from and written to as a complete block (including the spare registers).
First read the real-time clock by reading Modbus Block 52. If the date and/or time is incorrect, then write the correct date and time to the Block 52 registers.
Note that the real-time clock represents the year using only the last two year digits. For example, for the year 1998, the real-time clock stores the year as “98”. The DFI interprets the years “98” and “99” as 1998 and 1999, respectively, and all other years as being 20xx. The real-time clock recognizes the year “00” (i.e., the year 2000) correctly as being a leap year. Thus, the DFI date is valid from Jan. 1, 1998 through Dec. 31, 2097.
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4.1.2 Set DFI General Parameters

Operating Mode
Select the DFI operating mode via the Mode Modbus register (Block 50). Upon power-on/reset, the DFI defaults to the Normal Mode (Mode=0). The DFI operational mode can be changed to the Test Mode (Mode=1), the Maintenance Mode (Mode=2), or the Current Calibration Mode (Mode=3).
Polling Period
Specify the period at which the DFI polls the Host TimeLapse register (for batch update detection) via the PollingPeriod Modbus register (Block
51). Shorter polling periods decrease the batch update latency (i.e., the time between the end of the batch and the frequency/current update) but may increase communication errors when accessing Host Modbus registers via the DFI.
Non-Normal Timeout
Specify the length of time that the DFI can remain in a non-Normal operating mode (i.e., the Test Mode, Maintenance Mode, or Current Calibration Mode) via the NonNormalModeTimeout Modbus register (Block 51). Setting the NonNormalModeTimeout register to zero disables the DFI non-Normal timeout feature (i.e., the DFI can remain in a non­Normal mode indefinitely).
Communication Timeout
Specify the maximum length of time the DFI has to begin transmission of a Modbus response message (after receipt of a Modbus request message) via the CommTimeoutSec Modbus register (Block 51). If no response is received within the time limit, no response will be sent.
Communication Response Delay
In some instances, an external computer (i.e., flow computer or diagnostic computer) requires that the DFI delay transmitting Modbus response messages a minimum length of time. Specify the minimum response delay time in milliseconds for each communication port via the Com­mARspDlyMillisec Modbus register (for port A) and CommBRspDlyMil­lisec Modbus register (for port B) (Block 56).
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System Units
Select the system of units for accessing Modbus registers representing physical quantities via the UnitsSystem Modbus register (Block 51) as either U.S. Customary (0) or Metric (1). See Table 5-1 for a list of the pre­defined metric and U.S. Customary units.
Volumetric Flow Rate Time Unit
Select the time unit for the volumetric flow rate output via the VolFlowRateTimeUnit Modbus register (Block 51) as either volume per second (0), volume per hour (1), or volume per day (2). The volumetric flow rate unit indicated by DFI Modbus registers, the frequency outputs, and the current output is a function of the system of units (see above and
Section 5.8) and VolFlowRateTimeUnit. For example, if metric units
(UnitsSystem=1) and volume per hour (VolFlowRateTimeUnit=1) are selected, then the unit for Modbus registers such as QMeter, QFlow, and QBase and for frequency and current outputs is cubic meters per hour.

4.1.3 Set Temperature and Pressure Sampling

Analog Inputs
The flow condition temperature and pressure inputs can be independently disabled (0), enabled (1), or specified (2) via the Enable­TemperatureInput and EnablePressureInput Modbus registers (Block
56). If an input is enabled, then its value is determined by sampling an
analog input signal once per second and optionally averaging a specified number of samples. If an input is specified, then its value is specified by a writable Modbus register (SpecFlowTemperature or SpecFlowPressure). If an input is neither enabled nor specified, then it is disabled.
Input Averaging
The enabled temperature and pressure inputs are sampled once per second. The measurements can be smoothed using sample averaging in which a specified number of samples are averaged to arrive at the temperature or pressure value to use for calculation. Specify the number of samples to be averaged via the MeasurementArraySize Modbus register (Block 56). Setting MeasurementArraySize to 1 disables the measurement smoothing. It is recommended that the number of samples
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to average be set to the number of seconds per batch. For example, the default batch time for a multi-path meter is approximately five seconds; in that case, the MeasurementArraySize register should be set to 5.
Temperature Input Range
The temperature input is expected to be a 4-20 mA or a 1-5 V signal, depending on which PFC board is installed. Specify the temperature represented by a 4 mA or 1 V input via the MinInputTemperature Modbus register (Block 53); specify the temperature represented by a 20 mA or 5 V input via the MaxInputTemperature Modbus register (Block
53). Refer to Section 5.8 for the units for these specifications based upon the selected system of units.
Flow Condition Temperature
If the temperature input is specified (i.e., the EnableTemperatureInput register is set to 2), then the flow condition temperature must be specified via the SpecFlowTemperature Modbus register (Block 54). Note that SpecFlowTemperature can be modified regardless of the memory protect jumper (JP2) position. The unit for this specification is determined by the selected system of units (refer to Section 5.8).
Temperature Alarm Limits
Specify the flow condition measured or specified temperature alarm limits via the LowTemperatureAlarm and HighTemperatureAlarm Modbus registers (Block 53). Temperature values which are outside of the alarm limits are flagged as being invalid. Refer to Section 5.8 (See List of Tables) for the units for these specifications based upon the selected system of units.
Pressure Input Unit and Atmospheric Pressure
Select the pressure input unit via the InputPressureUnit Modbus register (Block 51) as either gage (0) or absolute (1). If gage pressure is selected, then specify the atmospheric pressure via the AtmosphericPressure Modbus register (Block 54). Refer to Section 5.8 for the atmospheric pressure unit based upon the selected system of units.
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Pressure Input Range
The pressure input is expected to be a 4-20 mA or a 1-5 V signal, depending on which PFC board is installed. Specify the pressure represented by a 4 mA or 1 V input via the MinInputPressure Modbus register (Block 53); specify the pressure represented by a 20 mA or 5 V input via the MaxInputPressure Modbus register (Block 53). The unit for these specifications is a function of the selected system of units (refer to
Section 5.8) and pressure input unit (see above).
Flow Condition Pressure
If the pressure input is specified (i.e., the EnablePressureInput register is set to 2), then the flow condition pressure must be specified via the Spec­FlowPressure Modbus register (Block 54). Note that SpecFlowTempera­ture can be modified regardless of the memory protect jumper (JP2) position. The unit for this specification is determined by the selected system of units (refer to Section 5.8) and the value of the InputPressure­Unit register.
Pressure Alarm Limits
Specify the flow condition measured or specified pressure alarm limits via the LowPressureAlarm and HighPressureAlarm Modbus registers (Block
53). Pressure values which are outside of the alarm limits are flagged as
being invalid. The unit for these specifications is a function of the selected system of units (refer to Section 5.8) and pressure input unit (see above).

4.1.4 Set AGA8 Parameters

The compressibility calculation parameters (AGA8 parameters) are required for flow-profile effect correction (for models 3410, 3420 and
3450) and for flow condition to base condition conversion.
Beginning with v3.62, the AGA8 calculations can be performed externally (such as in a flow computer) with the results (e.g., flow-condition mass density, flow-condition compressibility, and base-condition compressibil­ity) specified to the DFI via Modbus registers. The base-condition temperature and pressure must be specified as described in the "Base Condition" paragraph below. The flow-condition temperature and pressure must be either input or specified as described in Section 4.1.3.
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The HCH_Method register is used to specify external AGA8 calculations as described in the HCH Calculation Method paragraph below.
Base Condition
Specify the base (contract) temperature and pressure via the TBase and PBase Modbus registers (Block 54) respectively. The units for these specifications are determined by the selected system of units (refer to
Section 5.8). The base pressure is expected to be absolute pressure.
HCH Calculation Method
Select the AGA8 gross characterization method (for calculating the equivalent hydrocarbon molar gross heating value) via the HCH_Method Modbus register (Block 54) as either the first gross characterization method (1) or the second gross characterization method (2).
Beginning with v3.62, if the AGA8 calculations are to be performed externally (with the results specified to the DFI), then set the HCH_Method Modbus register to 0. The DFI expects the flow-condition mass density, the flow-condition compressibility, and the base-condition compressibility to be specified as described below. The base-condition temperature and pressure must also be specified as described in the "Base Condition" paragraph above. The flow-condition temperature and pressure must be either input or specified as described in Section 4.1.3.
Measured Volumetric Gross Heating Value
If the first gross characterization method is selected (HCH_Method=1, see above), then specify the measured volumetric gross heating value and the reference temperature via the MeasVolGrossHeatingValue and RefTemperatureHV Modbus registers (Block 54), respectively. The units for these specifications are determined by the selected system of units (refer to Section 5.8).
Specific Gravity
Specify the specific gravity of the natural gas mixture via the SpecificGravity Modbus register (Block 54). Specify the reference condition (temperature and pressure) for the specific gravity via the RefTemperatureGr and RefPressureGr Modbus registers (Block 54). The
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units for these specifications are determined by the selected system of units (refer to Section 5.8). The reference pressure is expected to be absolute pressure.
Molar Density Reference Condition
If the first gross characterization method is selected (i.e., HCH_Method=1; see above), then specify the molar density reference condition (temperature and pressure) via the RefTemperatureMolarDensity and RefPressureMolarDensity Modbus registers (Block 54). The units for these specifications are determined by the selected system of units (refer to Section 5.8). The reference pressure is expected to be absolute pressure.
Gas Composition
Specify the gas composition in mole fractions of carbon dioxide, hydrogen, and carbon monoxide via the Modbus registers MoleFractionCO2, MoleFractionH2, and MoleFractionCO (Block 54), respectively. If the second gross characterization method is selected (HCH_Method=2, see above), then specify the mole fraction of nitrogen via the Modbus register MoleFractionN2Method2 (Block 54). (The mole fraction of nitrogen is calculated for the first gross characterization method.) Note that the gas composition is specified in terms of mole fractions not percentages. For example, if the gas is composed of 0.5956 percent carbon dioxide, then specify MoleFractionCO2=0.005956.
Ensure that you specify the gas composition in terms of mole fractions rather than percentages.
Flow-Condition Mass Density
If the AGA8 calculations are performed externally (HCH_Method=0, see above), then specify the flow-condition gas mass density via the SpecRhoMixFlow Modbus register (Block 53). The unit for this specification is determined by the selected system of units (refer to
Section 5.8).
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Flow-Condition Compressibility
If the AGA8 calculations are performed externally (HCH_Method=0, see above), then specify the flow-condition compressibility via the dimensionless SpecZFlow Modbus register (Block 53).
Base-Condition Compressibility
If the AGA8 calculations are performed externally (HCH_Method=0, see above), then specify the base-condition compressibility via the dimensionless SpecZBase Modbus register (Block 53).

4.1.5 Set Expansion Correction Parameters

Expansion Correction due to Temperature and Pressure
The volumetric flow rate can be corrected for expansion due to temperature and pressure effects upon the pipe. The corrections can be independently enabled (1) or disabled (0) via the EnableExpCorrTemp (for temperature) and EnableExpCorrPress (for pressure) registers (Block
56). The temperature effect expansion correction requires that the temperature input be enabled or specified (via EnableTemperatureIn­put); similarly, the pressure effect expansion correction requires that the pressure input be enabled or specified (via EnablePressureInput).
Linear Expansion Coefficient
The linear expansion coefficient is required for the calculation of the temperature-effect expansion correction factor. Specify the linear expansion coefficient via the LinearExpansionCoef register and the reference temperature for the coefficient via the RefTempLinearExpCoef register (both in Block 54). The units for these specifications are determined by the selected system of units (refer to Section 5.8).
Pipe Outside Diameter
The pipe outside diameter is required for the calculation of the pressure­effect expansion correction factor. Specify the pipe outside diameter via the PipeOutsideDiameter register (Block 54). The unit for this specification is determined by the selected system of units (refer to
Section 5.8).
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Pipe Inside Diameter
The pipe inside diameter is required for the calculation of the pressure­effect expansion correction factor. This value should already have been specified (via the CPU PipeDiam register in Block 11) as it is essential to the volumetric flow rate measurement.
Young's Modulus
The Young's Modulus value is required for the calculation of the pressure­effect expansion correction factor. Specify Young's Modulus via the YoungsModulus register (Block 54). The unit for this specification is determined by the selected system of units (refer to Section 5.8).
Poisson's Ratio
The Poisson's Ratio value is required for the calculation of the pressure­effect expansion correction factor. Specify Poisson's Ratio via the PoissonsRatio register (Block 54). The unit for this specification is determined by the selected system of units (refer to Section 5.8).

4.1.6 Reynolds Number and Flow-Profile-Effect Correction Parameters

Reynolds Number
This is a dimensionless value which represents the nature of the gas flow within the pipe. Although the primary reason for calculating Reynolds Number is for flow-profile-effect correction, it is calculated for all meter types regardless of whether the flow-profile-effect correction factor is calculated. The meter-reported volumetric flow rate must be valid in order for Reynolds Number to be calculated. In addition, the calculation requires the flow-condition gas mass density and the gas viscosity as discussed below. The Reynolds Number calculation is described in Section A.4.6.
Flow-Condition Gas Mass Density
If the AGA8 calculations are performed by the DFI (HCH_Method =1 or
2), then the flow-condition temperature and pressure must both be valid
(specified or input) and the AGA8 base calculations must be valid in order for the flow-condition gas mass density to be calculated or estimated. If
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the AGA8 calculations are performed externally (HCH_Method=0), then specify the flow-condition gas mass density via the SpecRhoMixFlow Modbus register (Block 53) for calculating Reynolds Number. The unit for this specification is determined by the selected system of units (refer to SectionA.1).
Gas Viscosity
Specify the gas viscosity via the Viscosity Modbus register (Block 54). The unit for this specification is determined by the selected system of units (see Appendix A).
For meter models 3410, 3420, and 3450, the volumetric flow rate requires correction for flow-profile-effect due to the location of the transducers. This correction is not required by other meter models. For firmware prior to v3.73, this correction factor is either calculated (based upon a calculated Reynolds Number, see above) or set to a default value; for firmware v3.73 and later, the correction factor must either be specified (via the SpecCorrectionFactor register in Block 53), calculated (if Spec­CorrectionFactor is equal to 0.0 and temperature and pressure are both enabled/specified) or set to the default (if SpecCorrectionFactor is equal to
0.0 and either temperature or pressure is disabled). The correction factor calculation is described in Appendix A.1.
SpecCorrectionFactor
If flow-profile-effect correction is required and the correction factor is to be specified (v3.73+), then specify the value via the SpecCorrectionFactor register (Block 53). (Note that pipe wall roughness does not need to be specified in this case. The gas viscosity is not required either but may be specified if the user wants Reynolds Number to be calculated.) Otherwise, the SpecCorrectionFactor register should be set to zero so that the correction factor is either calculated or set to the default.
Pipe Wall Roughness
If flow-profile-effect correction is required and the correction factor is to be calculated, then specify the pipe wall roughness via the WallRoughness Modbus register (Block 54). The unit for this specification is determined by the selected system of units (see Appendix A).
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4.1.7 Set Frequency and Current Outputs

Flow Rate Condition
Select the flow rate condition indicated by the frequency and current outputs via the FreqFlowRateCondition Modbus register (Block 51). The outputs can indicate the volumetric flow rate at either the flow condition (0) or the base (contract) condition (1).
Frequency Flow Direction
Select the flow direction to be represented by the frequency outputs 1 and 2 via the Freq1Content and Freq2Content Modbus registers (Block 51) as either reverse flow (0), forward flow (1), or absolute flow (2).
For DFI boards with firmware prior to v3.73 or with an FPGA prior to v1.2, the "B" phase frequency outputs are set to zero whenever the frequency output is invalid (including when in the Test mode). For DFI boards with v3.73 or later firmware and a v1.2 or later FPGA, the user can elect to not zero the "B" phase frequencies when the frequency output is invalid. In that case, in addition to the three options for Freq1Content and Freq2Content (0, 1, and 2), the user has an additional three options: non-zero Phase B reverse flow (4), non-zero Phase B forward flow (5), and non-zero Phase B absolute flow (6).
Maximum Frequency Output
Select the maximum frequency output via the MaxFrequency Modbus register (Block 51) as either 1000 Hz (1000) or 5000 Hz (5000).
Frequency Output Full Scale Volumetric Flow Rate
Specify the volumetric flow rate represented by the maximum frequency output (specified above) via the FreqFullScaleVolFlowRate Modbus register (Block 53).
Frequency Feedback
Select the frequency feedback via the EnableFreqFeedback Modbus register (Block 51) as either enabled (1) or disabled (0). It is highly recommended that the frequency feedback always be enabled.
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Frequency Feedback Correction
Specify the percentage of the frequency output correction indicated by the frequency feedback via the FreqFeedbackCorrectionPct Modbus register (Block 51). It is highly recommended that this parameter be set to the default value.
Current Flow Direction
Select the flow direction to be represented by the current output via the CurrContent Modbus register (Block 51) as either reverse flow (0), forward flow (1), or absolute flow (2).
Current Output Full Scale Volumetric Flow Rate
Specify the volumetric flow rate represented by the maximum current output (20 mA) via the CurrFullScaleVolFlowRate Modbus register (Block 53).

4.2 CALIBRATING TEMPERATURE AND PRESSURE INPUTS

The DFI uses a two-point calibration (offset and gain) for each of the enabled analog inputs (temperature and pressure). The system calibration values currently used by the DFI can be read via the Modbus registers TempOffsetValue, TempGainCoefficient, PressOffsetValue, and PressGainCoefficient in Block 66. The default offsets are 0 K for temperature and 0.0 MPa for pressure; the default gains are one. Note that the corresponding ADC is re-calibrated as part of the offset calibration. The ADC calibration values can be read via the Modbus registers TempADCZeroScaleCalReg, TempADCFullScaleCalReg, PressADCZeroScaleCalReg, and PressADCFullScaleCalReg in Block 65.
The procedure for performing an analog input signal calibration is outlined below. Note that only enabled analog input signals can be calibrated. If neither analog input signal is enabled, the Maintenance Mode cannot be entered. Enabled analog input signals cannot be calibrated if the memory protect jumper (JP2) is installed.
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See Section 5 for additional detailed specifications regarding this
operation.
For proper analog input calibration, the offset calibration must be performed before the gain calibration.
1. Enter the Maintenance Mode Read Inputs Submode by writing the value 2 to the Mode Modbus register and the value 0 to the Mainte­nanceSubmode Modbus register (Block 50). Note that if the NonNormalModeTimeout Modbus register (Block 51) is set to a non­zero value, the following steps must be completed in the number of minutes specified by this register.
2. Specify the number of readings to be averaged for calculating the calibration points via the SysCalArraySize Modbus register (Block 56). It is recommended that this register be set to the maximum value of 64 (the default value) for the most accurate calibration point calculation.

3. Perform the offset calibration as follows (assumes a calibrator is being used):

(a) Set the analog input signal to be calibrated (temperature or
pressure) to precisely 4 mA or 1 V, depending on which PFC board is installed.
(b) Change the MaintenanceSubmode Modbus register (Block 51) to 1
if calibrating the temperature input offset or to 3 if calibrating the pressure input offset.
(c) When the offset calibration is completed, the DFI automatically
returns to the Read Inputs Submode. Verify the end of the offset calibration by repetitively reading the MaintenanceSubmode Modbus register until its value is 0 (indicating the Read Inputs Submode).

4. Perform the gain calibration as follows (assumes a calibrator is being used):

(a) Set the analog input signal to be calibrated (temperature or
pressure) to as close to 20 mA or 5 V as possible, depending on which PFC board is installed.
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AUG 2004 CALIBRATING TEMPERATURE AND PRESSURE INPUTS
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(b) Calculate the temperature or pressure indicated by the analog
input current or input voltage set in the previous step using the appropriate equation below.
For Temperature Gain Calibration:
InputCurrent 4mA
⎛⎞
(1)
(2)
----------------------- ------------------------------
⎝⎠
MinInputTemperature
⎞ ⎝
MinInputTemperature
16m A
OR
InputVoltage 1V
⎛⎞
------------------------ ------------------------
⎝⎠
4V
MaxInputTemperature MinInputTemperature()×
MaxInputTemperature MinInputTemperature()×
+
+
For Pressure Gain Calibration:
(3)
(4)
InputCurrent 4mA
⎛⎞
⎛⎞
---------------------- ---------------------------- ---
⎝⎠
⎝⎠
MinInputPressure
OR
⎛⎞
⎛⎞
⎝⎠
⎝⎠
MinInputPressure
16mA
InputVoltage 1V
--------------------- ---------------------------
4V
MaxInputPressure MinInputPressure()×
MaxInputPressure MinInputPressure()×
+
+
where InputCurrent (mA) or InputVoltage (V) is the value from the previous step and MinInputTemperature, MaxInputTemperature, MinInputPressure, and MaxInputPressure are the Modbus register values (Block 53).
(c) Write the value calculated above to the CalGainTemperature
Modbus register if performing a temperature gain calibration or to the CalGainPressure Modbus register if performing a pressure gain calibration (Block 53).
(d) Change the MaintenanceSubmode Modbus register (Block 51) to 2
if calibrating the temperature input gain or to 4 if calibrating the pressure input gain.
(e) When the gain calibration is completed, the DFI automatically
returns to the Read Inputs Submode. Verify the end of the gain
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CALIBRATING TEMPERATURE AND PRESSURE INPUTS AUG 2004
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calibration by repetitively reading the MaintenanceSubmode Modbus register until its value is 0 (indicating the Read Inputs Submode).

5. Return to the Normal Mode by writing 0 to the Mode Modbus register (Block 50).

To reset a calibration value to its default value, change to the Maintenance Mode (if not already in that mode) by writing 2 to the Mode Modbus register (Block 50). Next, write the appropriate value (see Table 4-1) to the MaintenanceSubmode Modbus register (Block 50). When the specified calibration value is reset, the DFI automatically returns to the Read Inputs Submode. Verify the end of the calibration reset by repetitively reading the MaintenanceSubmode Modbus register until its value is 0 (indicating the Read Inputs Submode). Finally, return to the Normal Mode by writing 0 to the Mode Modbus register (Block 50).

Table 4-1 Calibration Reset Submodes

Mainte nance
Submode Value
101 Temp er ature Of fset
101 Temp er ature Of fset
102 Temp erature Gain
102 Temp erature Gain
103 Pressure Offset
103 Pressure Offset
104 Pressure Gain
104 Pressure Gain
While in the Maintenance Mode, the temperature and pressure inputs are considered invalid since they are not expected to represent the flow condition.
Calibration V alue
to Re set
The compressibility (AGA8) and Reynolds number calculations use the last flow condition temperature and pressure values (prior to entering the Maintenance Mode). These values can be read via the Modbus registers FlowTemperature and FlowPressure in Block 62. While in the Maintenance Read Inputs Submode, the present temperature and pressure readings can be read via the Modbus registers MaintTempera­ture and MaintPressure in Block 64.
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AUG 2004 CALIBRATING TEMPERATURE AND PRESSURE INPUTS
4-16 METER CONFIGURATION, FIRMWARE
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4.3 CALIBRATING CURRENT OUTPUT SIGNAL

See Section 5 for detailed specifications regarding this function.The
procedure for performing the current output signal calibration is outlined below:
1. Enter the Current Calibration Mode Zero Scale Submode by writing the value 3 to the Mode Modbus register and the value 0 to the Cur­rentCalSubmode Modbus register (Block 50). Note that if the NonNor­malModeTimeout Modbus register (Block 51) is set to a non-zero value, the following steps must be completed in the number of minutes specified by this register.
2. Measure the output current in mA and write the measurement value to the ZeroScaleCurrent Modbus register (Block 53). The calculated current offset value can be read from the CurrOffsetValue Modbus register (Block 66).
For proper current output calibration, the zero scale current value must be specified before the full scale current value.
3. Change to the Full Scale Submode by writing the value 1 to the Cur­rentCalSubmode Modbus register (Block 50).
4. Measure the output current in mA and write the measurement value to the FullScaleCurrent Modbus register (Block 53). The calculated current gain coefficient can be read from the CurrGainCoefficient Modbus register (Block 66).
5. Exit from the Current Calibration Mode to the Normal Mode by writing the value 0 to the Mode Modbus register (Block 50).
The zero-scale current can be reset to its default value (4.0 mA) while in the Current Calibration Mode either by setting the CurrentCalSubmode Modbus register to 100 or by setting the ZeroScaleCurrent Modbus register to 4.0. If the CurrentCalSubmode Modbus register is set to 100, then the DFI automatically returns to the Zero Scale Submode after the zero-scale current has been reset.
The full-scale current can be reset to its default value (20.0 mA) while in the Current Calibration Mode either by setting the CurrentCalSubmode
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CALIBRATING CURRENT OUTPUT SIGNAL AUG 2004
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Modbus register to 101 or by setting the FullScaleCurrent Modbus register to 20.0. If the CurrentCalSubmode Modbus register is set to 101, then the DFI automatically returns to the Zero Scale Submode after the full-scale current has been reset.

4.4 CONFIGURING EVENT AND DATA LOGGING

Although the hourly and daily log records are not configurable, the format in which some of the record data is transmitted is configurable via Modbus registers. Also, the contract hour (i.e., the hour at which a daily record is to be logged) is specified via a Modbus register. See Section 5, Theory of Operation, for detailed specifications regarding this configuration.

4.4.1 Specifying the Contract Hour

Specify the contract hour in military format (0-23 hours) via the ContractHour Modbus register (Block 56).

4.4.2 Selecting the Log Date and Time Format

Select the format in which log record date and time information is to be transmitted via the LogDateTimeFormat Modbus register (Block 56). The encoding for this register is shown in Table 4-2 on page 4-18.

4.4.3 Selecting the Daily Log Volume Format

Select the format in which the daily log record volume information is to be transmitted via the LogDailyVolumeFormat Modbus register (Block
56) as either 32-bit floating point (0) or 32-bit integer (1). The default format is floating point. The 32-bit integer format should be selected if the daily volumes (flow-condition and base-condition) are expected to require more than seven digits of precision. The daily record volumes are reported in either cubic meters or cubic feet depending upon the units specified by the UnitsSystem register (see Section 4.1.2).
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AUG 2004 CONFIGURING EVENT AND DATA LOGGING
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Table 4-2 Date and Time Formats per LogDataTimeFormat Value
Tim e (H HM M SS,
Tim e (H HM M SS,
m ilita r y form at)
m ilita r y form at)
Exam ple
Exam ple
3:45:30pm
3:45:30pm
LogDateTimeForm at
LogDateTimeForm at
Value
Value
0
0
(d efa ult)
(d efa ult)
1
1
2
2
3
3
4
4
5
5
Data
Data Typ e
Typ e
32 bit,
32 bit, flo a tin g
flo a tin g point
point
32 bit,
32 bit, lon g
lon g integ e r
integ e r
32 bit,
32 bit, flo a tin g
flo a tin g point
point
32 bit,
32 bit, lon g
lon g integ e r
integ e r
32 bit,
32 bit, flo a tin g
flo a tin g point
point
32 bit,
32 bit, lon g
lon g integ e r
integ e r
Date
Date
Example
For mat
For mat
MMDDYY 70499.0 154530.0
MMDDYY 70499.0 154530.0
MM DDYYYY 7041999 154530
MM DDYYYY 7041999 154530
DDMMYY 40799.0 154530.0
DDMMYY 40799.0 154530.0
DDM MYYYY 4071999 154530
DDM MYYYY 4071999 154530
YYMMDD 990704.0 154530.0
YYMMDD 990704.0 154530.0
YYYYMM DD 19990704 154530
YYYYMM DD 19990704 154530
Example
July 4, 1999
July 4, 1999

4.4.4 Selecting the Hourly Log Volume Format

Select the format in which the hourly log record volume information is to be transmitted via the LogHourlyVolumeFormat Modbus register (Block
56) as either 32-bit floating point (0) or 32-bit integer (1). The default
format is floating point. The 32-bit integer format should be selected if the hourly volumes (flow-condition and base-condition) are expected to require more than seven digits of precision. The hourly record volumes are reported in either cubic meters or cubic feet depending upon the units specified by the UnitsSystem register (see Section 4.1.2).
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CONFIGURING EVENT AND DATA LOGGING AUG 2004
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