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Appendix C: Principles of Operation

105

Power is further conserved through cycling and duty-cycling the end device’s sampling and
calculation frequencies. The RS-232C interface is software-controlled and manages power supplied
to a radio or modem for minimum power consumption.

Analog Inputs

The analog input circuits read voltages from 0 to 5 VDC. Input devices with 1-5V outputs are
connected to analog inputs and scaled from 0 to 100% by software. If 4-20 mA devices are used,
optional precision load resistors can be installed.

Each input signal is connected to an input port on the analog multiplexer (MUX), which routes each
signal sequentially to the input port of the A/D converter (see Figure C.1). The sampling interval is
software-controlled (see Chapter 4 of the ScanWin Lite manual or Chapter 11 of the ScanWin Pro
manual for information on Averaging Delay).

One of the MUX input ports is connected to a precision voltage reference and another port is
connected to ground. This forms the basis for autocalibration. The CPU uses the readings from these
ports to establish internal correction factors for the transmitter signals. Autocalibration corrects drift
in the analog circuitry due to component age, temperature-induced gain variations, cross-channel
leakage in the MUX, assorted component leakage, and other errors. Further corrections determined
from the loop calibration data are applied to account for the end-device characteristics including
static offset, linearity and hysteresis. Various checks ensure that the corrections are “reasonable.”

All analog inputs are single-ended (common ground). Therefore, some method of isolation may be
required to share an analog signal with another device.

Analog to

Digital

conversion

CPU

16 bit

Analog

Input

protection

& filtering

RTD Input

protection

and

filtering

etc...

Auto-cal zero.

Precision

reference

Auto-cal fullscale

+

Zero and Fullscale
references converted
periodically for use by
auto-cal correction
routines.

Transmitter

Power

Analog In

GND

Vtx

etc...

RTD C1

RTD C2

RTD R

(common)

Multiplexer

+

Figure C.1—Routing of analog input signals for conversion to digital readout

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Содержание NUFLO 1141C

Страница 1: ...Manual No 30165009 Rev 01 NUFLOTM Scanner 1141 RTU Hardware User Manual ...

Страница 2: ...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 Re...

Страница 3: ...nlarged 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 ou...

Страница 4: ...ction 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 403 291 4814 Before installing the instrument carefully read the in...

Страница 5: ...ner 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 4...

Страница 6: ...ibration 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 ...

Страница 7: ...nner 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 BOA...

Страница 8: ... 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 ...

Страница 9: ...s 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 ...

Страница 10: ...ty 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 ScanPL...

Страница 11: ...gured 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 u...

Страница 12: ...figurable 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 ...

Страница 13: ...ection 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 ga...

Страница 14: ...ns 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...

Страница 15: ...CTIVE 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 ENS...

Страница 16: ...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 ...

Страница 17: ...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 ...

Страница 18: ...cking 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 conf...

Страница 19: ...Chapter 3 Main Circuit Board Wiring 19 Figure 2 5 Components of 1141C Figure 2 6 Components of 1141L ...

Страница 20: ...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 turbin...

Страница 21: ...adio or modem for Class I Div 2 installations integral communications Note Solar panels must be installed in accordance with Div 2 wiring methods using TECK cable or conduit See control drawing 2 on page 97 The radio antenna must be installed per Div 2 wiring methods See control drawing 3 on page 98 ...

Страница 22: ...el Mount the solar panel on a post facing the equator or mount it directly to a flat surface see chart below for tilt angles At the equator the mounting surface should face upward Mount the panel high enough above the ground to prevent damage or tampering Site Latitude Optimum Tilt Angle 0 10 5 20 Latitude 5 21 45 Latitude 10 46 65 Latitude 15 66 75 80 ...

Страница 23: ...information about installation in a hazardous location Integral Charge Controller For installation in Class I Division 2 hazardous locations the charge controller power input are integral to the Scanner 1141 main board CAUTION This caution is only applicable when a battery is connected to terminals 2 3 BATT BATT The power supply must be current limited to 10 Amps maximum and also be short circuit ...

Страница 24: ...sure connecting the red wire to terminal 2 and the black wire to terminal 3 as shown in Figure 2 8 For an 1141G it is acceptable to wire directly to the Power and Power terminals terminals 2 and 3 in the top right corner of the main circuit board Fig 2 10 Figure 2 10 Barrier terminal block for wiring a solar panel or power supply to the Scanner 1141 2 Open the ScanWin program and navigate to Setup...

Страница 25: ...RE SUPPLYING POWER TO THE UNIT MAKE SURE THE LEADS FROM BATT TERMINALS ARE NOT TOUCHING METAL OR EACH OTHER 3 Connect a 6V or 12V battery to the Batt and Batt terminals terminals 4 and 5 as follows a Connect the factory installed wire containing a 10 amp inline x 1 in ABC 10 ceramic fast blow fuse extending from the Batt terminal terminal 4 to the positive terminal of the battery A label including...

Страница 26: ... wire extending from the Batt terminal terminal 5 to the negative terminal of the battery Figure 2 13 Figure 2 13 Battery connections on the main circuit board See Chapter 3 Main Circuit Board Wiring for additional wiring information See Appendix B Control Drawings for information about installation in a hazardous location ...

Страница 27: ...g the Scanner to utilize various input outputs This section will describe each of the primary switches involved in configuring the operation of the Scanner 1141 Figure 3 1 provides a quick reference for locating switches terminals and other connectors In addition to the main board an optional multipurpose I O expansion board can be added to provide an additional MVT RTD TTL serial port a 1 5V 4 20...

Страница 28: ...Scanner 1141 Hardware User Manual 28 Figure 3 1 Scanner 1141 main circuit board ...

Страница 29: ...s to many items in flow run configuration Tighten the screw to lock the switch See Config Lock SW11 page 31 SW9 Pwr Supplies power to the Scanner in the On position provides for properly supervised system shutdown in the Off position Move switch in the down position to turn power off Move switch in the up position to turn the power on SW8 Display Wakeup Turns on the display when it has timed out a...

Страница 30: ...le turning power on CN11 RAM Size select Determines how the system s base 256 Kbytes of memory is partitioned Move jumper to high or top position to select 96K RAM and 164 Kbytes of NVRAM move jumper to low or bottom position to select 64K RAM and 192 Kbytes of NVRAM SW2 Serial Port A21 RS 485 termination and pullup pulldown resistors See Auxiliary Serial Ports pg 51 SW1 Pulse Input A14 Supports f...

Страница 31: ...fixed above a push button switch When the screw is tightened the spring depresses the switch As long as this button is depressed the Scanner cannot be superbooted and most items in the flow run configuration cannot be changed To LOCK the switch tighten the screw until a click is heard Continue tightening the screw until it is possible to insert the sealing wire through the hex barstock screw Figur...

Страница 32: ...is enabled Power on restarts are logged in the event log The display will show Power on Restart Display Wakeup SW8 If the display is configured to timeout and turn off pressing the SW8 button will turn on the display See Figure 3 3 Contrast P3 The LCD display contrast is adjusted by turning the screw See Figure 3 3 Bklight P2 This potentiometer adjusts the brightness of a backlit display available...

Страница 33: ...t be replaced If the computer is stored without power for extended periods i e a week or more set the jumper CN20 to OFF Serial Port A02 SW6 Serial port A02 shown in Figure 3 5 is one of two auxiliary serial ports see also Serial Port A21 that can be software configured to support either RS 485 or RS 232C communications depending on which hardware options are installed Refer to the ScanWin manual ...

Страница 34: ... one of two auxiliary serial ports see also Serial Port A02 that can be can be software configured to support either RS 485 or RS 232C communications refer to the ScanWin manual Chapter 7 About the System For RS 485 communications Resource A21 uses SW2 with terminals 46 and 47 if these terminals are not present the RS 485 option is not installed For RS 232 communications Resource A21 uses SW2 and ...

Страница 35: ...1 is turned on a superboot occurs A superboot erases all configuration and flow data and is required when first commissioning the unit after turning the NVRAM battery switch CN21 on A superboot is required for changes to the RAM Size jumper CN11 settings to become effective See RAM Size description on page 36 When the SW4 is not pressed and the Scanner 1141 is turned on a normal restart occurs as ...

Страница 36: ...quency Pulse Input DIP Switch Summary page 44 for DIP switch settings and wiring diagrams for various electrical interfaces Analog Output Mode CN3 CN3 is for an optional single 4 20 mA analog output Figure 3 6 The output is wired to terminals 39 and 40 If these terminals are not present on the main circuit board the 4 20 mA analog output option is not installed When the Scanner is turned off and t...

Страница 37: ...TS input 13 DGnd Digital ground 14 RS 485 A02 Serial Port 15 RS 485 A03 Status I O 16 SIO Status input output 17 SIO Status input output A04 Status I O 18 DGnd Signal common A05 Status I O 19 SIO Status input output 20 SIO Status input output 21 DGnd Signal common A06 Status I O 22 VTx1 Power for transmitters 23 Pin Pulse input positive 24 Pin Pulse input negative A07 Pulse Input 25 VTx2 Power for...

Страница 38: ...S RS 232C request to send RTS output 44 CTS Auxiliary serial port clear to send CTS input 45 DGnd Digital ground 46 RS 485 A21 Serial Port 47 RS 485 48 VTx1 power for transmitters 49 Pin Pulse input positive A14 Pulse Input 50 Pin Pulse input negative Table 3 3 Inputs Requiring Connectors Source Location A01 Serial Port 4 pin Molex connector adjacent to terminals 12 15 A08 RTD RTD as part of seria...

Страница 39: ...Chapter 3 Main Circuit Board Wiring 39 Wiring Diagram Summary Figure 3 7 Main circuit board wiring summary ...

Страница 40: ...connector CN28 on the Scanner 1141 main board connects to the round interconnect SI assembly with a keyed 20 conductor ribbon cable The SI board and interconnect board are joined via a connector and a ribbon cable as shown in Figure 3 8 The MVT connects to the round SI board in back of the interconnect board Figure 3 8 Serial MVT connections Figure 3 9 MVT to interconnect board connections ...

Страница 41: ...t MVT sensor The MVT comes with an interconnect board that accepts two wire three wire and four wire 100 ohm RTDs When two or three wire RTDs are used jumper wires must be installed Figure 3 10 The RTD wiring is connected to terminal block TB2 on the interconnect board Figure 3 10 RTD connections via MVT interconnect board ...

Страница 42: ...0 00385 Ω Ω C DIN or by performing a loop calibration at a single point or three or more points For more information refer to the ScanWin manual Chapter 3 Calibrate Verify Devices Platinum 2 wire RTDs can be used by jumping the lead line compensation terminals together Figure 3 11 Wiring diagram for platinum 3 wire RTDs Analog Inputs Each main circuit board RTD can be configured as two analog inpu...

Страница 43: ...load resistors Figure 3 13 Power for the circuit is normally obtained from the Scanner s internal power supply but may also be drawn from an external source The configuration is non incendive when used with an approved transmitter Refer to Appendix B Control Drawings for a list of approved transmitters VTx Anin AGnd 1 5 VDC Out Figure 3 13 Wiring diagram for 1 5 VDC transmitter ...

Страница 44: ...N9 Frequency Pulse Inputs The Scanner 1141 frequency pulse inputs interface with a variety of pulse producing sources including turbine magnetic pickups preamplified turbine signals as well as open collector and contact closures with a debounce filter Each of these input types are discussed on the following pages Frequency Pulse Input DIP Switch Summary A six position DIP switch at the left edge o...

Страница 45: ...ff 3 Connects the high level signal from Pin to the comparator circuit that squares up the waveform Closed On Open Off 4 For turbine meter magnetic pickup coil signals connects the Pin terminal to an amplifier Open Off Closed On 5 For turbine meter magnetic pickup coil signals connects the output of the flow computer s pulse preamplifier to signal comparator for low level signals Open Off Closed O...

Страница 46: ... Turbine Barton 818 0 5V Input This is suitable for use with the Barton 818A preamplifier configured for voltage output mode This preamplifier provides a transmission of up to 30 mA Figure 3 15 DIP switch settings and wiring diagram for 818A preamplifier output ...

Страница 47: ...am for pre amplified turbine 0 5V output NOTE If the preamplifier can be powered by 12v at less than 30mA the Scanner 1141 s VTX2 transmitter supply may be used to power the preamplifier VTX1 can be used if the preamplier input can be the higher of the power input and the battery voltage ...

Страница 48: ...collector transistor or open drain MOSFET Figure 3 17 DIP switch settings and wiring diagram for an open collector output without bounce Dry Contact with Bounce In this mode the pulse input is connected to any device that provides a passive contact closure such as a reed relay or microswitch Excitation is provided by the Scanner 1141 Debouncing circuitry limits the input frequency to 15 Hz maximum...

Страница 49: ... a passive input is selected an internal power source attempts to drive a 50 mA current through the circuit The voltage through this circuit is limited to 3 2 VDC When an active input is selected the user can select a voltage threshold of 2 7 or 10 volts Below the threshold the input will be false off above the threshold the input will be true on Outputs are used for status e g alarms or pulse tra...

Страница 50: ...nput Output Expansion Board page 103 Console Serial Port The console port is accessed through the 4 pin A01 connector CN34 located on the underside of the main board on the terminal block side This port is wired to a connector accessed from the bottom of the enclosure and is typically used with a console device such as a PC As shown in Figure 3 22 the console serial port connector is protected by ...

Страница 51: ...led For RS 232 communications Resource A02 uses SW 6 and terminals 9 through 12 resource A21 uses SW 2 and terminals 41 through 44 If these terminals are not present the RS 232 option is not installed For TTL communications Resource A02 uses connector CN33 resource A22 uses connector CN29 If these connectors are not present the TTL option is not installed These serial ports can be used with a mode...

Страница 52: ...mitters are powered down allowing these inputs to transition from on to off to wake up the serial port RS 232C Auxiliary Serial Port When resource A02 or A21 is configured to support RS 232 communications the following wiring diagrams can be used to connect to a modem or radio DCE or directly to a PC DTE Figure 3 24 Wiring diagram for connecting auxiliary serial port A02 or A21directly to a PC usi...

Страница 53: ...485 Auxiliary Serial Port DIP Switches Table 3 7 Functions and Settings for RS 485 Auxiliary Serial Ports SW2 and SW6 SW Position Description ON OPEN OFF SWx 1 AC couple 100 ohm termination resistor1 Selected Deselected SWx 2 Pull up resistor Selected Deselected SWx 3 Pull down resistor Selected Deselected SWx 4 Not used 1 Can be used if Scanner 1141 is the last device on the loop but not normally...

Страница 54: ...A02 or A22 is configured to support TTL communications the following wiring diagram can be used to connect the Scanner 1141 to a 3V or 5V TTL communication device For TTL communications Resource A02 uses connector CN33 resource A22 uses connector CN29 If these connectors are not present along the right edge of the mainboard the TTL option is not installed Eight pin inline connectors and cable are ...

Страница 55: ...e Power switch SW9 and watching the local display until it scrolls to the firmware version The typical firmware version will be NFLo or IGas X4 3 4G or higher where X identifies firmware options such as M for Modubs or P for ScanPLC If the firmware needs to be updated follow the procedure in Appendix D Flashing the Scanner 7 Perform a superboot see the procedure below and continue to set up the Sc...

Страница 56: ...e switch SW11 is UNLOCKED The position of this switch is not detectable via observation alone but can be verified from the System screen of ScanWin If the Configuration Lock is in an unlocked position the CFG Lockout Status field will be marked with an X if it is in a locked position the field will be marked with a checkmark See Config Lock SW11 page 31 for more information on the Configuration Lo...

Страница 57: ...uperboot may be incomplete and the unit may not function properly CAUTION SUPERBOOTING ERASES ALL CONFIGURATION AND HISTORY DATA SAVE ALL CONFIGURATION AND HISTORY DATA BEFORE SUPERBOOTING THE SCANNER RTU Setup Steps 1 Start ScanWin and set the time and date at the prompt See the ScanWin manual for instructions 2 If it is necessary to add new hardware to the Scanner RTU perform the following steps...

Страница 58: ...e switch and seal it see Config Lock SW11 page 31 MVT Calibration Local installation effects such as instrument positioning tubing and site elevation require local calibration of both the differential pressure and the static pressure to obtain custody transfer quality accuracy It is recommended that the differential pressure and static pressure be verified upon installation and recalibrated if req...

Страница 59: ...t any of the following In Canada 877 805 7226 Scanner Help Desk or 403 291 4814 In the US 800 654 3760 In the UK 44 1243 826741 Tools Required As a minimum requirement for troubleshooting and performing minor maintenance on the Scanner 1141 the following tools should be available to the user Laptop PC and ScanWin software version 3 0 0 or higher Scanner cable 10 ft cable CS08 338 01 50 ft cable CS...

Страница 60: ... 1141 should display the message Power on restart B The Scanner display will not power up 1 Press the Display Wakeup button 2 Adjust the Contrast potentiometer in the upper left part of the mainboard With a small slotted screwdriver rotate the control clockwise to increase the contrast to the point where all of the display pixels are blackened out If this works turn the contrast back to the desire...

Страница 61: ...lled wire connecting the positive battery terminal to the mainboard The 10 amp inline ceramic fast blow fuse is x 1 in ABC 10 3 Although the voltage seems sufficient there may not be enough current to sustain the Scanner s operation over a long period of time If this is suspected remove one of the input power leads coming from the charging device e g solar panel Using a current meter measure the a...

Страница 62: ... that there is no voltage between transmit and ground or receive and ground After it has been awakened the receive line terminal 10 should be at 8 VDC with reference to ground except when data is being received when it should toggle up and down briefly between 8V and 8V If this is not the case a hardware problem may exist F The MVT cell is not providing process signals to the flow run 1 Check to e...

Страница 63: ...r A D system if Analog and or RTD inputs are present VBB 5V 5 Powers NVRAM and real time clock 3V when not powered VCC3 3 3V 3 Powers 3 3 volt circuits including MVTs VLCD 5V 5 Power for LCD display only when display is on Class I Div 2 with integral 6V or 12V battery charge controller Table 5 3 Voltage Generated by Control Signals Signal Voltage Description IBKL 0 95 to 2 V Constant current contr...

Страница 64: ...ow voltage warning A NVRAM battery voltage above 2 0 VDC indicates the configuration is still backed up a voltage of zero means that the battery is dead not installed or the jumper is missing NVRAM Battery Change Procedure The following steps outline the procedure for changing the NVRAM lithium backup battery in the Scanner 1141 The battery will last between 7 and 10 years under normal usage 1 Use...

Страница 65: ...uit board The main circuit board is removed by undoing the six screws or standoffs that connect it to the base plate NOTE Circuit boards should be shipped in antistatic bags and a well protected package Replacing the Sealed Lead Acid Battery A label mounted inside the enclosure lists batteries certified for use with the Scanner 1141 Figure 5 3 An operator can determine which batteries are suitable...

Страница 66: ...Scanner 1141 Hardware User Manual 66 ...

Страница 67: ...Chapter 6 Parts List and Order Code 67 Chapter 6 Parts List and Order Code Scanner 1141C ...

Страница 68: ...Scanner 1141 Hardware User Manual 68 Scanner 1141L ...

Страница 69: ...Chapter 6 Parts List and Order Code 69 Scanner 1141G ...

Страница 70: ...0 32 X 5 8 ST CP 0116 0005J SS brackets use Slot 10 32 X 5 8 SS 0119 0038J 7 Washer Flat 10 SS 0003 0047K 2 8 Hole Seal 3 4 0192 1029T 1 9a Dataplate Scanner CSA Div 2 1141 1012G 01 1 1 1 9b Label Wiring Connections 1141 1141 1007G 1 1 1 9c Label Battery 1141 1141 1018G 1 1 9d Label Warning Sign 1141 1019G 1 1 10 Terminal Crimp Ring Tongue 1 4 14 16Awg 0109 9015T 1 1 11 Stud 1 4 20 X 1 1 2 SS 0007...

Страница 71: ... 8 SS 0320 1007J 2 2 25 RTD Probe Armored Sheath 4 Wire 1 1 10 Foot 1100 1010C 10 30 Foot 1100 1010C 30 26 Stand off FXF 10 32 X 3 4 AL 0152 9015T 4 30 Connector Console Port 1141C 1140 1054B 1 1141L 0109 1310T 1 30a Gasket Console Port Connector Silicone 1140 1031R 1 1 Base Console Port Connector 1100 1011C 1 1 30b 30c Cap Sealing Console Port Connector 0090 9001T 1 1 30d Gasket Console Port Conn...

Страница 72: ... 2 2 44 SI Cable Flat Assy Ribbon 20 Cond 26 1141 1009C 1 1 45 SI Board included with MVT 99160000A 1 1 46 SI Interconnect Board 30160002A 1 1 47 Lockwasher Internal Tooth 6 SS 0003 0070K 2 2 48 Screw Ph Pn Hd 6 32 X 1 4 SS 0119 1013J 2 2 49 Wire Tip Ferrule Blue H2 5 14 1130 4666T 4 4 1 50 Terminal Ring type Size 16 Blue 0109 9006T 2 2 Battery 1 51 32 Ah 0130 9022T 1 55 Ah 0130 9024T 52a Fuse 10A...

Страница 73: ...rd 2X16 Display 1141 1000C 1 1 1 74 Stand off Snap X Snap X 2mm Plastic 1141 1015T 4 4 75 Display 1 1 1 LCD 2 X 16 1141 0400C Backlit LCD 2 X 16 1141 0401C 76 Stand off MXF 6 32 X 1 4 Al 0152 0036T 4 77 Decal Scanner 1141 1141 1006C 1 1 80 Mounting Plate Top 1141G 2 X 16 Display 1141 1008C 1 81 DB9 Female solder Body CS08 338 113 1 82 Stand off M X F 4 40 X3 16 Lg Al Kit CS08 607 114 2 83 Stand of...

Страница 74: ... 100PSIA 30IN H20 NACE 55168016 MVT 300PSIA 200IN H20 NACE 55168011 MVT 300PSIA 840IN H20 NACE 55168013 MVT 500PSIA 200IN H20 NACE 55168017 MVT 1500PSIA 200IN H20 NACE 55168012 MVT 1500PSIA 300IN H20 NACE 55168015 MVT 1500PSIA 400IN H20 NACE 55168018 MVT 1500PSIA 840IN H20 NACE 55168014 MVT 3000PSIA 200IN H20 NACE 55168077 MVT 3000PSIA 300IN H20 NACE 55168078 MVT 3000PSIA 400IN H20 NACE 55168079 M...

Страница 75: ... noted 1b Larger Enclosure battery available with special acceptance approval 2 SOLAR PANEL Bracket Cable Approval None None n a 00 Adj 10 Div 2 10 Adj 10 Div 2 20 Adj 10 Div 2 30 Vertical 10 Div 2 50 Vertical None Div 2 80 NOTE 2a All brackets are for 2 pipe 2b For non standard solar panels please consult factory 3 DISPLAY None applicable to all models 00 2 lines X 16 character LCD Display D2 2 l...

Страница 76: ...P5 1000 P6 1500 P7 3000 P8 5000 P9 NOTE 8a Integral mounted transducers are not available for the 1141G 8b Pressure transducers indicated are not custody transfer MC approved 8c Use IM or PT codes when multiple transducers are mounted on unit Ranges also stocked in Houston 9 RTD Armored 4 wire 100 Ohm Platinum None R0 10 foot R1 30 foot R3 NOTE 9a For non standard lengths please consult factory 10...

Страница 77: ...o be derated by 10 C 18 F degrees below the rated temperature of the component Relative Humidity 0 to 95 Non condensing Enclosures Fiberglass reinforced plastic Dimensions 8 1 3 deep x 14 1 2 wide x 16 1 2 high 1141C NEMA 4 or optional 4X Supports integral battery Painted steel Dimensions 8 deep x 12 wide x 12 high 1141L NEMA 3 Supports integral battery Chassis for mounting in other enclosures or ...

Страница 78: ...tes Memory Backup Battery powers the clock and maintains the contents of the NVRAM during power outages For Class I Division 2 applications a user replaceable button cell lithium battery CR2032 provides backup NVRAM for 1 year at 40 C and 1 5 years at 20 C Manufacturer Model 20 mm dia X 3 2 mm thick Panasonic CR2032 or BR2032 Duracell DL2032 Energizer CR2032 or BR2032 Toshiba CR2032 or BR2032 Rayo...

Страница 79: ...rface circuitry for the display and up to four serial ports Class I Division 2 configurations also include a charge controller integral to the system board This board provides analog I O and status pulse I O to support up to two natural gas or liquid flow runs with proportional integral control Connection of I O to the system board is provided by up to 50 terminals with cage type screw termination...

Страница 80: ...powered from the higher of the battery and power input voltages Approximately 50 mA on Vtx1 12VL 12V 30 mA Voltage Limited Transmitter Supply Outputs the higher of the battery and power input voltages less 0 25V to a maximum of 12V on Vtx2 12V Stepup 12V 30 mA Stepup Transmitter Supply Outputs 12V regardless of battery and power input voltages recommended for 6V systems with 12V transmitters on Vt...

Страница 81: ...ure to the Scanner EFM RTU This configuration can be used in Class I Division 2 applications MVT Inputs Quantity 2 1 static pressure and 1 differential pressure Accuracy Differential Pressure Accuracy 30 In H2O 0 10 Differential Pressure Accuracy 200 to 840 In H2O 0 05 Static Pressure Accuracy 0 05 Temperature Performance 0 25 of full scale over full operating temperature range Effect on different...

Страница 82: ...M 500 3 4 750 5 1 B7 or 316 SS B7M 1500 10 2250 15 B7 or 316 SS B7M 3000 20 4500 31 B7 or 17 4 SS 718 Inconel 5300 36 5800 40 B7 718 Inconel a URL is upper range limit the highest pressure the transducer can measure b SWP is the highest pressure that can be applied to the transducer without damage RTD Input with MVT Quantity 1 Type 100Ω 4 wire lead compensation Range 200 C to 850 C 325 F to 1560 F...

Страница 83: ...ntity 6 maximum 2 on the main board plus each RTD input can be configured as two analog inputs Type 1 5V or 4 20 mA with 250Ω load resistor Accuracy 0 050 of span max error 25 C 77 F Temperature Effect 0 3 over entire Scanner operating range Impedance 10 MΩ 1 5V input approximately 250Ω 4 20 mA input Over Voltage Protection 30 VDC A D Resolution 16 Bit Linearity Error 0 020 Max 0 010 typical Pulse...

Страница 84: ...requency Range Input Impedance Square Wave 0 8V 2 2V 0 8 kHz 100 kΩ Open Collector 2 kΩ 200 kΩ 0 10 kHz N A Contact Closure 2 kΩ 200 kΩ 0 15 Hz N A Minimum Signal Levels Impedance Magnetic Pick up 20 mV p p 20 Hz 20 mV p p 100 Hz 200 mV p p 1000 Hz 400 mV p p 2000 Hz 1000 mV p p 5000 Hz 10 KΩ at 1 kHz ...

Страница 85: ...ers etc Nominal Threshold Maximum Low Level Signal Minimum High Level Signal 2 0V 0 5V 3 5V 7 0V 5 0V 9 0V 10 0V 8 0V 12 0V Contact In 2 KΩ 200 KΩ Analog Output The analog output is user assignable to any rate function flow rate temperature control etc Quantity 1 Types 4 20 mA optically isolated externally powered Maximum Voltage 40 VDC Status Pulse Out Max on state current 100 mA Maximum Pulse Ou...

Страница 86: ...he typical cutoff voltage for a 12V SLA battery This solution is not suited to 6V battery powered systems that require a transmitter supply VTx2 on order code input options B1 and M1 12V 30mA Stepup Transmitter Supply 12V For 6V battery systems the charge pump is required to provide an adequate transmitter supply down to the lowest battery voltage of operation For 12V battery systems transmitters ...

Страница 87: ...circuit protected All solar panels are short circuit capable and can therefore be used with the 1141 provided they do not exceed 10 amps In normal operation the 1141 s charging module will allow electrical current to flow to the battery unrestricted The amount of current flow will vary depending on size of the battery and present charge level voltage of the battery and the voltage of the power sup...

Страница 88: ... charging current has fallen to a preset level as programmed according to the size of the battery being charged At this charge termination point the charger is switched to float mode and the programmed float voltage is maintained by delivering charge to the battery as necessary The trickle state exists when battery voltage is severely discharged to a point below a preset level called vTrickle When...

Страница 89: ...s a battery is charged it progresses through up to four stages or states The LED in the upper left corner of the circuit board indicates the state of the battery charge by the frequency of blinks it emits The table below shows how the blink pattern of the LED corresponds to the state of the voltage charge The faster the LED blinks the lower the voltage that is retained by the battery For example w...

Страница 90: ...ating temperature must be reduced to 50 C 122 F Lightning arrestors are also available for radio antenna connections Since these devices are rated up to 50 C 122 F the Scanner 1141 operating temperature must be reduced to 40 C 104 F Currently remote communication devices and lightning arrestors require CSA special acceptance Firmware The Scanner 1141 supports version 4 3 5 and higher of the standa...

Страница 91: ...Appendix A Specifications 91 Outline Dimensions Scanner 1141C ...

Страница 92: ...Scanner 1141 Hardware User Manual 92 Scanner 1141L Front and Side Views ...

Страница 93: ...ecifications 93 Scanner 1141L Bottom View of Enclosure Notes 1 All dimensions in inches Tolerances Fraction 1 32 Decimals 0 XX 0 01 0 XXX 0 005 3 1 4 in 2 in 6 in 10 in Drill Ø 1 4735 Drill Ø 0 875 Hole Ø 0 640 8 in ...

Страница 94: ...Scanner 1141 Hardware User Manual 94 Scanner 1141G ...

Страница 95: ...Drawings Drawing 1141 11012 Installation Class I Division 2 Class I Div 2 Control Drawings 1 Installation 96 2 Power Supply 97 3 Communications Serial Ports 98 4 Status Pulse Inputs Outputs 99 5 RTD Inputs Analog Inputs Outputs 100 6 Analog Outputs 101 ...

Страница 96: ...Scanner 1141 Hardware User Manual 96 Drawing 1 Installation ...

Страница 97: ...Appendix B Control Drawings 97 Drawing 2 Power Supply ...

Страница 98: ...Scanner 1141 Hardware User Manual 98 Drawing 3 Communications Serial Ports ...

Страница 99: ...Appendix B Control Drawings 99 Drawing 4 Status Pulse Inputs Outputs ...

Страница 100: ...Scanner 1141 Hardware User Manual 100 Drawing 5 RTD Inputs Analog Inputs Outputs ...

Страница 101: ...Appendix B Control Drawings 101 Drawing 6 Analog Outputs ...

Страница 102: ...Scanner 1141 Hardware User Manual 102 ...

Страница 103: ...for large blocks of vital data e g configuration data logs etc that must be protected if there is a power failure NVRAM power is backed by a small replaceable on board lithium battery If a loss of voltage is detected the system immediately saves all necessary data in the NVRAM When power is restored the computer resumes exactly where it stopped when the power failed The NVRAM is guarded against ch...

Страница 104: ...attery The watchdog timer prevents the microprocessor from stalling in a loop e g the processor waits for an input signal that never arrives If a loop occurs the Watchdog Timer resets the program to the initial start point and normal operation continues Watchdog Timer resets are logged in the Event log Power Management The Scanner 1141 uses a sophisticated power management system to optimize measu...

Страница 105: ...connected to ground This forms the basis for autocalibration The CPU uses the readings from these ports to establish internal correction factors for the transmitter signals Autocalibration corrects drift in the analog circuitry due to component age temperature induced gain variations cross channel leakage in the MUX assorted component leakage and other errors Further corrections determined from th...

Страница 106: ...ts Pulse Inputs The Scanner 1141 optional pulse inputs are designed to interface with a wide variety of devices including variable reluctance magnetic pick up coils and signals from turbine preamplifiers and simple contact closures DIP switches select the type of signal to be used for each pulse input In all modes the pulses are accumulated in a hardware register that is periodically read by the m...

Страница 107: ... switch selectable In addition the board provides four ports that can be individually configured via software for operation as a status input status output or pulse output The MIO2 installs in the Scanner 1141 s expansion slot and terminal blocks for field wiring termination are soldered onto the expansion board The configuration switches for the analog output and pulse input are located at the op...

Страница 108: ... VDC 1 5V Maximum Voltage 40 VDC Minimum load 1 5V mode 10KΩ D A Resolution 12 bits Calibration Zero and full scale software calibration Settling Time 100 msec to 0 1 of span for a full scale step change Status In Status Out Pulse Outputs The MIO2 board provides four maximum digital I O channels that can be individually software configured as status inputs status outputs or pulse outputs Each of t...

Страница 109: ...onfigured via on board DIP switch Over Voltage Protection 40 VDC Pulse Type Maximum Low Level Signal Minimum High Level Signal Frequency Range Input Impedance Square Wave 3 V 3 7 V 0 8 kHz 10 KΩ Open Collector 2 KΩ 200 KΩ 0 10 kHz N A Contact Closure 2 KΩ 200 KΩ 0 10 Hz N A Minimum Signal Levels Impedance Magnetic Pickup Coil 20 mV p p 20 Hz 20 mV p p 100 Hz 20 mV p p 1000 Hz 400 mV p p 2000 Hz 10...

Страница 110: ...CTS input or RS422 Tx B01 Serial Port 5 DGnd Digital ground 6 SIO Status input output 7 SIO Status input output 8 DGnd Signal common 9 SIO Status input output 10 SIO Status input output B03 Status I O B04 Status I O B05 Status I O B06 Status I O 11 DGnd Signal common 12 VTx1 Power for transmitters 13 Pin Pulse input positive B02 Pulse Input 14 Pin Pulse input negative 15 AnOut Analog output 16 Vou...

Страница 111: ...e software selected Hence there are no switches to set Serial Port Switches The serial port s configuration is controlled by both a 2 bit DIP switch and a multi pole slide switch see dotted area of Figure D 2 The slide switch selects between an RS 232C interface left hand position and an RS 422 RS 485 interface right hand position DIP switch 1 selects between RS 422 open OFF and RS 485 closed ON i...

Страница 112: ...ical data from the Scanner RTU 2 Turn off the Scanner 1141 RTU by moving switch SW11 to the down position 3 Disconnect the power supply to the Scanner 1141 4 Remove screws or standoffs as follows For the 1141G remove the cover plate and four lower standoffs For the 1141C and 1141L enclosures remove the four lower screws that hold the mainboard 5 Install 6 32 x 7 16 in standoffs on the four lower m...

Страница 113: ... change the firmware installed in the Scanner s Flash memory a PC with the WinsLoad or ScanFLASH program is required 1 Connect the PC to the Scanner 1141 s console port Figure E 1 PC Scanner Cable Console Port Figure E 1 PC to console connection for flashing firmware 2 Start ScanWin 3 Download all history configuration and calibration data HIGHLY RECOMMENDED 4 Exit ScanWin 5 With the Power switch ...

Страница 114: ...e version Flashing with WinsLoad IMPORTANT Before the Scanner 1141 firmware can be upgraded you must have the WinsLoad software loaded on your PC laptop and located in its own directory Installing WinsLoad 1 Locate the WINSLOAD files on the ScanWin Lite or ScanWin Pro CD or obtain the WinsLoad files from Cameron s Measurement Systems Division Keep pressing Program Erase switch SW3 while power swit...

Страница 115: ...dingly Using WinsLoad 1 Using Windows Explorer drag the binary firmware file icon onto the appropriate WINSLOAD icon pif bat or exe If COM1 is the communication port on your PC drag and drop the binary file onto WINSLOAD1 PIF WINSLD1 BAT or WINSLOAD EXE If COM2 is the communication port on your PC drag and drop the binary file onto the WINSLOAD2 PIF or WINSLD2 BAT icon Example In this case NGN410R...

Страница 116: ... back to the ON position to power up the Scanner 4 WinsLoad will begin to erase the ROM When this process is complete the program will upload the new firmware to the Scanner 1141 while displaying the percentage of the file that has been transferred 5 When the dialog reports Transmission completed close the window 6 Move the Power switch SW9 to the OFF position 7 Superboot the Scanner 1141 RTU as d...

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