Cameron NUFLO 1141C User manual

Manual No. 30165009, Rev. 01
NUFLOTM
Scanner 1141 RTU
Hardware User Manual

NuFlo is a trademark of Cameron International Corporation (“Cameron”).
Barton, Scanner, ScanWin, and MVX are trademarks or registered trademarks of Cameron.
Modbus is a registered trademark of the Modbus Organization, Inc.
Windows is a registered trademark of Microsoft Corporation in the U.S.A. and other countries.
Acrobat Reader is a registered trademark of Adobe Systems Incorporated.
© 2007 Cameron International Corporation (“Cameron”). All information contained in this
publication is confidential and proprietary property of Cameron. Any reproduction or use of these
instructions, drawings, or photographs without the express written permission of an officer of
Cameron is forbidden.
All Rights Reserved.
Printed in the United States of America.
Manual No. 30165009, Rev. 01
July 2007

iii
Warranty
The Company warrants all products of its manufacture and bearing its nameplate for a period of one
year after date of shipment from its factory to be free from defects in material and workmanship
subject to the following:
The Company’s liability under this warranty is limited, in the sole and absolute discretion of the
Company, to refunding the purchase price, to repairing, or to replacing parts shown to the
satisfaction of the Company to have been defective when shipped and then only if such defective
parts are promptly delivered to its factory, transportation charges prepaid. This warranty is void if
written notification is not given by Purchaser to Company within one year after said date of
shipment.
This warranty applies only if the products have been installed, operated and maintained in
accordance with the Company’s recommendations and the products have not been misused,
neglected, damaged by flood, fire or act of God, or modified or repaired, other than by the Company.
Where the Company has manufactured the products to a design of the purchaser, no liability is
accepted by the Company for design errors, which remain the responsibility of the Purchaser.
This warranty is expressly in lieu of all other warranties, obligations, conditions or liabilities,
expressed or implied by the Company or its representative. All statutory or implied warranties and
conditions, other than title, are hereby expressly negated and excluded. The Company’s liability as
stated herein cannot be altered, enlarged or extended except in writing by an officer of the Company.
The Company shall be under no liability in contract or otherwise for any loss, damage, death or
injury arising directly or indirectly out of the supply, failure to supply, or use of the products.
Replacement parts will be invoiced in the regular way with invoices subject to adjustment after the
parts claimed defective are examined at our factory. The Company reserves the right to make such
changes in details of design, construction of product arrangement as shall, in its judgment, constitute
any warranty of the Company’s supplier of such products.
The Company and its representatives will furnish, upon request, data and engineering services
relating to the application or use of its products. It will not be responsible and it does not assume
any liability whatsoever for damages of any kind sustained either directly or indirectly by any person
in the adoption or use of such data, any errors or omissions in such data, or engineering services in
whole or in part.
Warranty Limitation
The Company manufactures products which satisfy the exact definition of Quality, that is, they meet
the specifications as advertised or as stated by our customer. The products are intended to be used in
accordance with the specification and applications described in this document.
A limited warranty applies to products manufactured by Cameron’s Measurement Systems Division.
The Company will assume responsibilities for obligations, related to its products, which are
specifically noted within the written warranty for a specific product. However, the Company will
not be liable for any loss, damage, cost of repairs, incidental or consequential damages of any kind,

Scanner 1141 Hardware User Manual
iv
WARNING
CAUTION
whether or not they are based upon expressed or implied warranty, contract, negligence, or strict
liability arising in connection with the design, manufacture, sale, use, or repair of the products, if
they are used outside the constraints of recommended usage as set forth herein.
Any use or application that deviates from the stated performance specification is not recommended
and could render the instrument unsafe.
The Company should be advised of any apparent deviation or deficiency from specifications
including safety-related deficiencies. A return authorization will be issued where applicable for
goods returned for inspection, calibration or repair, under warranty.
Product Warranty Statement
The warranty applicable to this product is stated at the beginning of this manual.
Should any problem arise after delivery, contact Cameron’s Measurement Systems Division
HelpDesk at 1-877-805-7226 or the Customer Service department during normal business hours at
[phone].
Before installing the instrument, carefully read the installation instructions in this manual.
Also, be aware of the following important notices that appear throughout the manual:
WARNING notes indicate the presence of a hazard that, if ignored, can cause severe
personal injury, death or substantial property damage.
CAUTION notes indicate the presence of a hazard that, if ignored, will or can cause
minor personal injury or property damage.
Please be aware that the above notices appear on the following pages:
15, 20, 25, 42, 55, 57, 58 and 63

Table of Contents
v
TABLE OF CONTENTS
CHAPTER 1: OVERVIEW AND SPECIFICATIONS..............................................................9
Overview of the Scanner®1141........................................................................................................................9
Enclosures.......................................................................................................................................................10
Standard Display.............................................................................................................................................11
Autoscroll.....................................................................................................................................................12
Scanner Software............................................................................................................................................13
Scanner Firmware...........................................................................................................................................13
IGas .............................................................................................................................................................13
NGas............................................................................................................................................................13
NFlo .............................................................................................................................................................14
Audit Trail ........................................................................................................................................................14
CHAPTER 2: INSTALLATION ............................................................................................15
Securing the Enclosure ...................................................................................................................................16
Unpacking the Scanner...................................................................................................................................18
Mounting the Scanner .....................................................................................................................................20
Connecting the Scanner to Piping...............................................................................................................20
Installing and Connecting a Solar Panel .........................................................................................................22
Connecting the Power Supply / Charge Controller .........................................................................................23
Integral Charge Controller ...........................................................................................................................23
CHAPTER 3: MAIN CIRCUIT BOARD WIRING..................................................................27
Major Components..........................................................................................................................................27
Switches, Jumpers, and Potentiometers.........................................................................................................29
Field Wiring Termination..................................................................................................................................37
Wiring Diagram Summary ...............................................................................................................................39
MVT/RTD Input............................................................................................................................................40
RTD Inputs ......................................................................................................................................................41
MVT RTD.....................................................................................................................................................41
Main Circuit Board RTD...............................................................................................................................42
Analog Inputs...................................................................................................................................................42
Analog 1-5 VDC Transmitter........................................................................................................................43
Analog 4-20 mA Transmitter........................................................................................................................44
Frequency Pulse Inputs...................................................................................................................................44
Frequency Pulse Input DIP Switch Summary..............................................................................................44

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Status Inputs and Outputs .............................................................................................................................. 49
Analog 4-20 mA Output (Optional).................................................................................................................. 50
Console Serial Port......................................................................................................................................... 50
Auxiliary Serial Ports....................................................................................................................................... 51
RS-232C Auxiliary Serial Port..................................................................................................................... 52
RS-485 Auxiliary Serial Port DIP Switches................................................................................................. 53
TTL Auxiliary Serial Port.............................................................................................................................. 54
CHAPTER 4: STARTUP AND CONFIGURATION ............................................................. 55
Startup Procedure........................................................................................................................................... 55
Superbooting the Scanner........................................................................................................................... 55
Setup Steps................................................................................................................................................. 57
MVT Calibration........................................................................................................................................... 58
CHAPTER 5: TROUBLESHOOTING.................................................................................. 59
Tools Required................................................................................................................................................ 59
Problems and Solutions.................................................................................................................................. 60
Transmitter Voltage......................................................................................................................................... 62
Test Voltages.................................................................................................................................................. 63
NVRAM Lithium Battery Voltage..................................................................................................................... 64
NVRAM Battery Change Procedure............................................................................................................ 64
Returning the Scanner to Cameron’s Measurement Systems Division.......................................................... 65
Replacing the Sealed Lead Acid Battery ........................................................................................................ 65
CHAPTER 6: PARTS LIST AND ORDER CODE ............................................................... 67
Scanner 1141C............................................................................................................................................... 67
Scanner 1141L................................................................................................................................................ 68
Scanner 1141G............................................................................................................................................... 69
APPENDIX A: SPECIFICATIONS ...................................................................................... 77
General Specifications.................................................................................................................................... 77
Environmental ............................................................................................................................................. 77
Enclosures................................................................................................................................................... 77
Computer..................................................................................................................................................... 77
Display......................................................................................................................................................... 78
System Board.............................................................................................................................................. 79
Communications Port.................................................................................................................................. 80
Communications Port (cont’d)..................................................................................................................... 81

Table of Contents
vii
MVT/RTD Input............................................................................................................................................81
RTD Element ...............................................................................................................................................82
RTD (Analog) Inputs....................................................................................................................................83
Analog Inputs...............................................................................................................................................83
Pulse Inputs.................................................................................................................................................83
Discrete Inputs/Outputs...............................................................................................................................85
Analog Output..............................................................................................................................................85
Expansion Board Interface ..........................................................................................................................86
Transmitter and Auxillary Power Supply......................................................................................................86
Power Supply & Battery Charge Controller.................................................................................................87
Accessories .....................................................................................................................................................90
Firmware..........................................................................................................................................................90
Outline Dimensions .........................................................................................................................................91
Scanner 1141C............................................................................................................................................91
Scanner 1141L (Front and Side Views).......................................................................................................92
Scanner 1141L (Bottom View of Enclosure)................................................................................................93
Scanner 1141G............................................................................................................................................94
APPENDIX B: CONTROL DRAWINGS...............................................................................95
Drawing 1141-11012: Installation, Class I, Division 2.....................................................................................95
APPENDIX C: PRINCIPLES OF OPERATION: ................................................................103
Central Processing Unit (CPU)..................................................................................................................103
Memory......................................................................................................................................................103
FPGA.........................................................................................................................................................103
Clocks and Timers.....................................................................................................................................104
Power Management...................................................................................................................................104
Analog Inputs.............................................................................................................................................105
RTD Inputs.................................................................................................................................................106
Pulse Inputs...............................................................................................................................................106
APPENDIX D: INPUT/OUTPUT EXPANSION BOARD.....................................................107
MIO2 Expansion Board .................................................................................................................................107
Specifications ................................................................................................................................................108
General......................................................................................................................................................108
Serial Port..................................................................................................................................................108
Analog Output............................................................................................................................................108
Status In/Status Out/Pulse Outputs...........................................................................................................108

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Pulse Inputs............................................................................................................................................... 109
I/O Termination ............................................................................................................................................. 110
Configuration Switches................................................................................................................................. 111
Status Input/Output and Pulse Output Circuits ......................................................................................... 111
Serial Port Switches.................................................................................................................................. 111
Pulse Input Switches................................................................................................................................. 111
Analog Output Switch................................................................................................................................ 112
MIO2 Expansion Board Installation............................................................................................................... 112
APPENDIX E: FLASHING THE SCANNER...................................................................... 113
Preparing to Flash......................................................................................................................................... 113
Flashing with WinsLoad ............................................................................................................................ 114

Chapter 1: Overview and Specifications
9
Chapter 1: Overview and Specifications
Overview of the Scanner
®
1141
The Scanner®1141 is an economical, single-stream or dual-stream measurement Remote Terminal
Unit (RTU) with flow and pressure control capability. It offers a powerful alternative to chart
recorders in gathering data for natural gas production and includes a full range of operator-selectable
mass, energy, and volume algorithms. The Scanner 1141 is Class I, Div. 2 certified by CSA (US and
Canada) for use in hazardous areas.
A serial MVT (multi-variable transducer) mounts directly to the Scanner 1141 to provide accurate,
low-cost measurement of static pressure, differential pressure, and temperature in a single device.
The MVT is connected to the Scanner 1141 with an interconnect board that also provides an RTD
input.
The 1141 also accepts static pressure, differential pressure, and temperature inputs from the NuFlo
MVX®-II multi-variable transmitter, as well as inputs from low-power (1-5 VDC) and 4-20 mA
transmitters, RTDs, and pulse-producing devices such as the NuFlo and Barton turbine meters.
The Scanner 1141 stores up to 60 days of flow history in nonvolatile memory with an audit trail of
all events, alarms, and user changes. A separate replaceable lithium backup battery secures this
information against power failures. Stored data can be downloaded on-site or communicated to a
central location.
An integral rechargeable battery module uses a solar panel and contains a temperature-compensated
charge controller and a 6V or 12V air-transportable, sealed lead acid (SLA) battery.
See Battery Charge Indicator, page 89, for a description of the four basic states or stages of battery
charging.
The Scanner 1141 provides battery/power voltage for powering transmitters and communication
devices. A 12Vdc supply for powering transmitters and a 5-VDC, 200-mA supply is optionally
available for low-power radios. The Scanner 1141 communicates with local gas chromatographs,
and supports ScanCom and Modbus. Other custom protocols may also be supported. For remote
communications, the Scanner 1141 supports radio, modem, phone, and satellite access. An optional
lightning arrestor is also available. Currently, remote communication devices and lightning arrestors
require CSA special acceptance.
The power management system ensures that the Scanner 1141 consumes minimum power while
collecting and processing data.
Standard communications and status/pulse inputs are easily expanded.

Scanner 1141 Hardware User Manual
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The following features in the Scanner 1141 provide convenient and flexible operation:
Configurable Memory - A full set of menu-selectable calculation options are stored in Flash
memory in each Scanner 1141. As new industry standards are adopted, new programs are easily
loaded from a PC with WinsLoad or ScanFLASH Utility software (See Appendix E: Flashing
the Scanner, page 113).
Security - Five security levels and selectable display options provide easy access to core functions
while maintaining full protection of configuration and flow history.
Power Supplies - Choose from line power or various battery configurations with thermoelectric or
solar charging options to minimize installation costs and meet site and hazardous area safety
requirements.
Sampling Frequency - Select end-device sampling rates that optimize the Scanner 1141’s ability to
simultaneously measure/control flow and pressure while conserving power.
Calibration - A variety of methods are available for linearizing end devices to maintain the highest
accuracy. A detailed record of calibration information is stored automatically in the Scanner
user change log and can be used to monitor and diagnose transmitter performance.
Controls – Two types of controllers are available: (1) a basic proportional/integral controller and (2)
an IEC 61131 programmable controller called ScanPLC. Various control options are easily
configured using simple menus with input/output selections for both throttling and ON/OFF
control. Four status input/outputs and an analog output make the Scanner 1141 ideal for:
•proportional integral control
•emergency shutdown
•run switching
•programmable logic status
•well optimization
Enclosures
The Scanner is available in three enclosure designs:
•1141C— NEMA 4 or optional 4X, fiberglass-reinforced plastic, 14 1/2 in. wide x 16 1/2 in. high
x 8 1/3 in. deep (shown on the manual cover, left)
•1141L—NEMA 3, painted steel, 12 in. wide x 12 in. high x 8 in. deep (shown on the manual
cover, right)
•1141G—Chassis for mounting in an enclosure or panel (ideal for integrators and
engineering/construction firms), 9.6 in. wide x 10.1 in. high x 2.5 in. deep

Chapter 1: Overview and Specifications
11
Standard Display
The standard display on the Scanner 1141 is a large 2-line × 16-character liquid crystal display
(LCD) with optional backlighting.
To save power, the display can be configured to shut off automatically after a user-specified time
period (usually about 30 seconds). For the backlight option, an LCD PwrSav jumper can be
configured to turn off both the display and the backlight (jumper is in the ON position), or to turn
off only the backlight (jumper is in the OFF position) when the Display Timeout is reached.
The Scanner 1141 is equipped with a button that is pressed to “wake-up” the display (Figure
1.1).

Scanner 1141 Hardware User Manual
12
Figure 1.1—Display “wake-up” button
Auto-scroll
The display “auto-scrolls” through a list of user-definable readouts. Each item is held on the
display for a configurable amount of time and is then replaced by the next item in the list. An
operator can pause the auto-scroll on any displayed item by pressing the “wake-up” button.
The following is a sample of an auto-scroll screen:
Run 1 Pf On
492.00000 PSI
While in auto-scroll, the following unit status screen is displayed each time the Scanner
completes a loop through the list:
Time= 09:00 ML
Date= Jan 01/95

Chapter 1: Overview and Specifications
13
The display will shut off automatically after a configurable amount of time (usually about 30
seconds). To “wake-up” the display, press the “wake-up” button.
Scanner Software
ScanWin Lite is a Windows™-based software program for monitoring, configuring and
downloading Scanner Measurement RTU data on-site. ScanWin Lite’s “wizards” guide the
operator through the setup of hardware, flow runs, and primary devices as well as the collection
of hardware, system, and flow run data. Reports can be exported and printed from ScanWin.
ScanWin Lite also facilitates the upload and download of configuration settings.
ScanWin Pro, an optional upgrade from ScanWin Lite, combines all of the functionality of
ScanWin Lite with a flow run catalog and a relational database that stores historical information
for off-line review. ScanWin Pro also supports the configuration of advanced control and data
capture functions and various connection methods for remote communication with the Scanner
1141.
Scanner Firmware
The Scanner 1141 supports current NGas, NFLo and IGas firmware. Gas calculations meet both
North American (NGas/NFLo) and international measurement standards (IGas).
All three programs accept signals from orifice or turbine meter inputs and RTD temperature
inputs. Gas composition values can be automatically updated through a gas chromatograph
interface using the RS-232 communications port, or they can be manually entered.
All calculations are performed in SI metric units. The Unit Manager automatically converts other
units as required.
IGas
The international standard (IGas) includes ISO-5167, which supports a variety of differential
pressure meters, venturi and flow nozzles. ISO-T30SC1088 is supported for turbine meter
measurement.
NGas
NGas firmware solves Manual of Petroleum Measurement Standards (MPMS), and American
Gas Association (AGA) (Reports 3 (1992), 5, and 7) calculations including volume, mass, and
energy. The calculation speeds meet or exceed API standards for flow computers. The
supercompressibility calculations performed include:
•AGA-8 (1992)
•Redlich-Kwong
•Standing Katz

Scanner 1141 Hardware User Manual
14
•An interpolation method
•GERG Virial Equation for Field Use
•Standard GERG Virial Equation
NFlo
NFLo performs the same calculations as NGas, plus liquid properties calculations based on the
API Manual of Petroleum Measurement Standards (MPMS) chapters 11.2.1, 11.2.2, 11.2.3 and
API 2540.
Audit Trail
The Scanner 1141 maintains a detailed audit history of all configuration records, user changes
and system alarms. It also maintains a history of events including hourly and daily flow history.
The Event log operates as a circular buffer that contains 100 typical events. Each new event
added to the log causes the oldest event to be discarded. If the User Change log is full, it will not
accept any further changes or inputs until the user downloads the log. This feature ensures that
the audit trail is continuous. Up to 60 days of history records can be maintained in nonvolatile
memory.

Chapter 3: Main Circuit Board Wiring
15
WARNING
CAUTION
Chapter 2: Installation
CAUTION
ALWAYS TURN OFF POWER TO THE SCANNER 1141 BEFORE REMOVING ANY
ELECTRONIC CIRCUIT BOARDS. FAILURE TO DO SO CAN DAMAGE THE SCANNER.
CIRCUIT BOARDS ARE SUBJECT TO DAMAGE IF EXPOSED TO STATIC ELECTRICITY.
CIRCUIT BOARDS MUST BE HANDLED AND INSTALLED IN AN ENVIRONMENT FREE OF
STATIC ELECTRICITY AND THE OPERATOR MUST BE GROUNDED.
WHEN REMOVING CIRCUIT BOARDS FROM THE SCANNER 1141, ALWAYS PLACE THEM IN PROTECTIVE
CONDUCTIVE ENVELOPES.
NEVER SUBJECT THE RTU TO AMBIENT OR OPERATING TEMPERATURES BEYOND -40°C to +60°C
(-40°F to +140°F). FOR ADDITIONAL INSTRUMENT SPECIFICATIONS, SEE APPENDIX A.
Note: Circuit boards returned to Cameron’s Measurement Systems Division factory for repair must be
properly packed for static protection. If they are not, the boards will not be covered by the
Cameron warranty.
WARNING—EXPLOSION HAZARD
ENSURE THAT THE AREA IS NON-HAZARDOUS BEFORE CONNECTING A PC TO A
SERIAL PORT, OPENING THE ENCLOSURE OR ADDING OR REMOVING ANY WIRES.
FOR CLASS I, DIVISION 2 INSTALLATIONS, ACCESS TO THE INSIDE OF THE
ENCLOSURE MUST REQUIRE A TOOL. ACCEPTABLE LOCKING DEVICES ARE TIE-
WRAP, SEAL WIRE, A LOCK OR A NUT AND BOLT.

Scanner 1141 Hardware User Manual
16
Securing the Enclosure
Figures 2.1 through 2.4 show examples of materials that are appropriate for securing the 1141 enclosure
for Class I, Division 2 installations so that a tool is required to gain access. A lock may also be used to
secure the enclosure.
The seal wire, shown in Figures 2.3 and 2.4, must be used for custody transfer applications where
government regulation agencies such as Measurement Canada require the seal.
Figure 2.1—1141L with a tie-wrap fastener
Figure 2.2—1141C with a nut and bolt fastener

Chapter 3: Main Circuit Board Wiring
17
Figure 2.3—Seal wire installation on an 1141C latch (left) and an 1141L latch (right)
Figure 2.4—Seal wire installation on an 1141C hinge (left) and an 1141L hinge (right)

Scanner 1141 Hardware User Manual
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The following chart outlines the sequence of steps required for installing the Scanner 1141 RTU:
Table 2.1—Installation Summary
Step Description Reference Section
1 Unpacking the Scanner Page 18
2 Mounting the Scanner Page 199
3 Connecting the Scanner to piping Page 20
4 Connecting the power supply and charge controller Page 23
Unpacking the Scanner
The Scanner 1141 is carefully inspected during manufacturing and before shipment. However, to ensure
that no damage occurred during shipment, inspect the equipment as you unpack it. The following items
should be included with each shipment:
•Scanner 1141, completely assembled (Figures 2.5 and 2.6)
•Battery (optional)
•RTD (optional)
•Solar panel (optional)
•ScanWin Lite software CD
To remotely configure or collect data from the Scanner 1141, an IBM-compatible PC with Microsoft
Windows operating system and ScanWin Lite (or ScanWin Pro) user interface software is required.

Chapter 3: Main Circuit Board Wiring
19
Figure 2.5—Components of 1141C
Figure 2.6—Components of 1141L

Scanner 1141 Hardware User Manual
20
CAUTION
CAUTION
MOUNT BATTERY TERMINALS TOWARD THE FRONT OF THE ENCLOSURE TO HELP
PREVENT THE TERMINALS FROM CONTACTING THE INTERNAL METAL BRACKETS.
Mounting the Scanner
A universal 2-in. bracket is used to mount the Scanner 1141C and 1141L to a wall or a pipe. The 1141G
is surface-mounted using the four holes on the mounting plate. See Outline Dimensions, page 91 for
size and location of brackets.
Connecting the Scanner to Piping
All piping connections are made in accordance with standard practices. For orifice meters, consult API
Chapter 14.3, Part 2 or AGA-3, Part 2 (1991) for more information. For turbine meters, consult API
Chapter 5.3 or AGA-7.