Cameron NUFLO MC-III EXP Скачать руководство пользователя страница 13

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MC-III™ EXP Flow Analyzer

Section 1

LOG

TEST

SAVE

ENTER

K-FACTOR

MENU

OUTPUT

MENU

DISPLAY

MENU

DISPLAY

MENU

K-FACTOR

MENU

OUTPUT

MENU

RESET TOTAL

LOG

TEST

SAVE

ENTER

Day

Total

Rate

Calibrate instrument

Set flowmeter input sensitivity

Select pulse input

Enable/disable/set up 4-20 mA output

pulse output

Enter slave address

Enter baud rate

Enable/disable/set up

Set engineering units for Total readout

Set engineering units for Rate readout

Set decimal placement for both readouts

During calibration, navigates

between submenus and scrolls

through menu selections
During operation, accesses

daily volume archive

During calibration, incrementally

changes digits and decimal point

position, on/off settings
During operation, tests temperature

and system voltage

During calibration, saves

calibration settings
During operation, saves

Total to nonvolatile memory
Note: To zero the Total

readout, press the LOG (left

arrow) and SAVE (ENTER)

keys simultaneously.

Figure 1.5—MC-III EXP keypad functions

Power Supply—CSA-Approved Units

The CSA-approved MC-III EXP is shipped with either a lithium battery or an alkaline battery pack. Alter-

nately, the MC-III EXP may be powered by an external power source; in this case, the lithium battery or alka-

line battery pack provides a backup power supply, significantly extending battery service life. A low-power

microprocessor enables the MC-III EXP to operate approximately 2 years on a single lithium battery.
Wiring diagrams for connecting an external power supply are provided in

Section 2, page 13

Power Supply—ATEX-Approved Units

The ATEX-approved MC-III EXP is shipped with a lithium battery. Alternately, the MC-III EXP may be

significantly extending battery service life. A low-power microprocessor enables the MC-III EXP to operate

approximately 2 years on a single lithium battery.
Wiring diagrams for connecting an external power supply are provided in

Section 2, page 13

Содержание NUFLO MC-III EXP

Страница 1: ...NUFLO TM MC III EXP Flow Analyzer User Manual Manual No 9A 50165003 Rev 06 Valves Measurement ...

Страница 2: ...strument or connected equipment Important Indicates actions or procedures which may affect instrument operation or may lead to an instrument response which is not planned Symbols Marked on Equipment Attention Refer to manual Protective earth ground Technical Support Contact Information TEL 1 844 226 6327 EMAIL ms services sensiaglobal com WEB https sensiaglobal com Measurement Other company produc...

Страница 3: ...SA Approved Units Only 9 RS 485 IS Barrier CSA Approved Units Only 10 Commonly Used Functions 10 Reading Totals 10 Saving Totals to Memory 10 Resetting the Total 10 Viewing Daily and Hourly Logs 11 Saving and Uploading Configuration Files 11 Exporting Log Data 11 Saving Log Data in a Report 11 Section 2 Installation 13 Hazardous Area Installations ATEX 13 Conditions for Safe Use ATEX 14 Mounting O...

Страница 4: ...tion 42 Changing the Communications Port 43 Software Connection in Multi Device Network 43 Setting Log Download Preferences 45 Configuring the MC III EXP 46 Configuration Wizard 48 MC III Main Screen 50 Buttons and Tools 51 System Setup 54 Time Date Synchronization 54 Contract Hour 54 LCD Contrast Adjustment 54 Security Setup 55 Firmware Version Number 55 Serial Number 55 Communications Port 55 Sl...

Страница 5: ...line Battery Replacement 87 Circuit Assembly Replacement 89 Keypad Replacement 91 Firmware Update 92 MC III Parts List CSA 93 MC III Parts List ATEX 94 Appendix A MC III EXP Hardware Options A 1 Explosion Proof Reset Control Switch A 1 Installation A 1 Operation A 2 Explosion Proof Communications Adapter A 3 Assembly of the Plug Connector A 3 Connecting to the Communications Adapter A 4 Disconnect...

Страница 6: ...2 D 4 Manufacture Date Sales Date registers 1003 1004 D 4 Slave Address register 1009 D 4 Baud Rate register 1010 D 4 Real Time D 5 Input Configuration D 5 Output Configuration D 8 Holding Registers 16 bit Mode D 9 Holding Registers 16 bit Mode Least Significant Word First D 11 Base Units Configured Units D 11 Conversion Factors D 11 Polling Registers D 12 Pointer Daily Event Pointer registers 170...

Страница 7: ...ge 13 it is approved by CSA for use in hazardous areas in Canada and the United States and meets the ATEX IECEx standards for use in hazardous areas worldwide Operation The MC III EXP calculates and displays instantaneous flow rates and accumulated totals based on a turbine flowmeter input signal The MC III s microprocessor circuitry counts the pulses generated by a companion flowmeter converts th...

Страница 8: ... approved device is marked as shown in Figure 1 3 A description of the electrical protection afforded by SIRA certification and associated safety markings are also shown in Figure 1 3 PART SERIAL 167018 Figure 1 2 Serial tag for CSA approved device Equipment Group II Category 2 hazardous conditions are likely to occur in normal operation occasionally 10 1000 hours year Explosive Atmosphere Gas Dus...

Страница 9: ... 30 VDC Load resistance 1100 ohms 30 VDC 200 ohms 12 VDC Operating Temperature Lithium Powered 40 C to 70 C 40 F to 158 F Alkaline Powered CSA only 18 C to 55 C 0 F to 130 F LCD contrast is reduced below 20 C 4 F LCD Display 8 digit Total volume display 7 segment characters 6 digit Rate display 11 segment characters for easy to read prompts 0 3 character height Adjustable contrast and update perio...

Страница 10: ... temperature drift Loop power 8 0 to 30 VDC Zero and full scale engineering values configurable from front panel RS 485 Communications Baud rates 300 600 1200 2400 4800 9600 19200 38400 57600 and up to 115 2K Volumetric Pulse Output Solid state relay Output rating 60 mA max 30 VDC on state drop 1 4 VDC 50 mA 0 25 VDC 10 mA Configurable pulse width duration 10 to 60 000 ms Amp Square Flowmeter Freq...

Страница 11: ...flow rate bottom readout The eight digit total display uses 7 segment characters to form numbers and letters which results in a combination of uppercase and lowercase letters The six digit flow rate display uses 11 segment characters to form numbers and letters for improved readability When the keypad is used to calibrate the MC III EXP the name of the menu option selected appears in the lower rat...

Страница 12: ...orm a basic configuration of the instrument Figure 1 5 page 7 summarizes the functions that can be accessed with each button Most parameters can be configured in seconds by selecting one of the three menu keys K Factor Output or Display navigating settings with the arrow buttons and saving the selections with the Enter key Section 3 page 30 contains procedures for configuring the MC III EXP using ...

Страница 13: ... left arrow and SAVE ENTER keys simultaneously Figure 1 5 MC III EXP keypad functions Power Supply CSA Approved Units The CSA approved MC III EXP is shipped with either a lithium battery or an alkaline battery pack Alter nately the MC III EXP may be powered by an external power source in this case the lithium battery or alka line battery pack provides a backup power supply significantly extending ...

Страница 14: ...communication with interface software or other telemetry equipment When the 4 20 mA rate output feature is used the MC III EXP is powered by the current loop and the lithium battery or alkaline battery pack is used as a backup supply The pulse output and 4 20 mA output features should be turned off when not required for reduced current consumption See Section 2 page 13 for wiring diagrams See Sect...

Страница 15: ...tch press the switch for 1 second and release it Subsequent press and release actions increment the daily index allowing the user to select a specific daily total Additionally when the log viewing function times out the accumulated total is automatically saved to memory Saving the Total When the daily log display times out the MC III EXP will automatically save the accumulated total RS 485 Communi...

Страница 16: ...MC III EXP or from the interface software MC III Main screen The software calculates the flow total and updates the LCD display every 4 seconds by default The user can adjust the calculation period with the interface software See Calculation Period page 61 for more information Saving Totals to Memory Hourly and daily totals are automatically saved to nonvolatile memory A user may save an accumulat...

Страница 17: ...xit the Daily Volume Archive menu After 2 minutes of inactivity the Daily Volume Archive menu will timeout and the total readout will be restored automatically The optional explosion proof reset switch also allows users to view daily log totals For more information see Explosion Proof Reset Control Switch page 9 Saving and Uploading Configuration Files The MC III interface software allows users to...

Страница 18: ...12 Section 1 MC III EXP Flow Analyzer ...

Страница 19: ...meter types For ATEX installation requirements see Hazardous Area Installations ATEX below For CSA installation requirements see Hazardous Area Installations CSA page 17 Cameron recommends that operators configure the device prior to mounting if the instrument is to be installed in a hazardous area The enclosure must be opened to configure the device either via keypad controls or via software WARN...

Страница 20: ...doff tube is fitted it shall be used with turbine meter pick off coil bosses in accordance to those listed in certificate Sira 03ATEX1474U The product may be fitted with a communication adaptor When removing the conduit plug to fit the data transfer socket to the communication adaptor and during data transfer the user installer shall ensure that no explosive atmosphere is present After data transf...

Страница 21: ...el standoff tube is required Figure 2 3 page 16 The 3 4 in to 1 in reducer supplied with the Barton 7000 Series meter is not required when the standoff tube is used Mount the device to a flat vertical surface Remote mount the device to a 2 in pole using a NuFlo hardware kit Figure 2 4 page 16 Pole mount ing may be preferred where limited space or pipe vibration prohibits direct mount installation ...

Страница 22: ...29 236 1 approx 5 71 145 Figure 2 3 Direct mount to a Barton 7000 series flowmeter with 3 4 in to 3 4 in standoff tube ATEX 5 00 127 4 94 125 5 7 45 189 3 6 56 16 7 6 95 17 65 Figure 2 4 Remote mount on a 2 in pole using a NuFlo hardware kit Part No 9A 30028004 ...

Страница 23: ...e CSA approved battery supplied by Cameron Part No 9A 100005111 Replace the optional alkaline battery pack only with the CSA approved battery pack supplied by Cameron Part No 9A 50099002 The lithium battery that powers the MC III EXP is a sealed unit however should a lithium battery develop a leak toxic fumes could escape upon opening the enclosure Ensure that the instrument is in a well ventilate...

Страница 24: ...tion prohibits direct mount installation For best results install the device as near as possible to the meter to minimize the length of explosionproof signal cable that must be used for communications Stranded shielded cable is recommended 5 71 145 6 73 171 1 1 75 44 5 5 00 127 Figure 2 5 Direct mount standard MC III EXP enclosure to NuFlo turbine meter with pipe reducer and union CSA 5 00 127 0 7...

Страница 25: ...pply grease only to the end that threads into the meter c Install the magnetic pickup in the flowmeter 4 Position the MC III EXP above the flowmeter If installing an ATEX approved MC III EXP with a tube adapter make sure the signal cable is disconnected from the MC III circuit board This will prevent the cable from being damaged from twisting when the tube adapter is threaded onto the meter in ste...

Страница 26: ...y keypad assembly from the enclosure making sure the circuit assembly does not contact the enclosure 4 Connect the lithium battery or alkaline battery pack to the J1 connector marked BATTERY near the top of the circuit assembly 5 Connect wiring for external power if appropriate See Figure 2 8 page 21 6 Connect the flowmeter or pulse input wiring to terminal block TB1 See Figure 2 9 page 22 and Fig...

Страница 27: ...e power source extends battery life and helps ensure that timekeeping and volume accumulation will not be interrupted during a power failure External Power Supply The MC III EXP can be connected to a remote power supply by a two conductor cable Figure 2 8 The power supply and cable must be capable of supplying 6 to 30 VDC 10 mA This capability is available only if the 4 20 mA rate output is not us...

Страница 28: ... V D C TB1 PULSE INPUT RESET INPUT TFM A S GND T B 3 EXT POWER TURBINE MAGNETIC PICKUP VMAX 3 9 V J1 J2 RESET SWITCH BATTERY A B Figure 2 9 Flowmeter input wiring Pulse Input The pulse input provides an optically isolated input in systems where a preamplifier is inserted between the sensor and the MC III EXP T B 3 TB1 PULSE INPUT RESET INPUT TFM A S GND EXT POWER 6 3 0 V D C J1 J2 RESET SWITCH BAT...

Страница 29: ... for installation and wiring instructions The reset input reset pulse or local reset switch must be active for 3 seconds to clear the total The explosion proof switch can also be used to view daily logs and to save the accumulated volume to memory without opening the enclosure See Explosion Proof Reset Control Switch page 9 for more information TB1 PULSE INPUT RESET INPUT TFM A S GND T B 3 EXT POW...

Страница 30: ...e Part No 1 5KE56CA must be installed for CE approval For information on configuring the pulse output with the keypad see Configuring the Pulse Output page 38 For information on configuring the pulse output with the interface software see Configuring Pulse Output page 69 TB1 PULSE INPUT RESET INPUT TFM A S GND T B 3 EXT POWER TB2 RS485 SLAVE 4 20 OUT PULSE OUT 6 3 0 V D C J1 J2 RESET SWITCH BATTER...

Страница 31: ...sistance is given For example if a power supply voltage of 24 volts is available to power the current loop the maximum load resistance would be 800 ohms Caution The 4 20 mA rate output and the flowmeter frequency output circuits are not isolated from each other and cannot be used simultaneously When the 4 20 mA output option is used do not connect external power to TB3 For information on configuri...

Страница 32: ...nd cannot be used simultaneously Caution When using the flowmeter frequency output and powering the device from an external power supply make sure both power supplies share a common negative terminal or are totally isolated from each other TB1 PULSE INPUT RESET INPUT TFM A S GND T B 3 EXT POWER TB2 RS485 SLAVE 4 20 OUT PULSE OUT 6 3 0 V D C J1 J2 RESET SWITCH BATTERY Leave this end of shield disco...

Страница 33: ... a CSA approved device the RS 485 output is approved for intrinsically safe installations An intrinsically safe installation requires an intrinsically safe barrier assembly with a conduit seal Figure 2 18 page 28 In such installations only the turbine flowmeter input may be used A B TB1 PULSE INPUT RESET INPUT TFM A S GND T B 3 EXT POWER TB2 RS485 SLAVE 4 20 OUT PULSE OUT 6 3 0 V D C RS 485 Commun...

Страница 34: ...28 Section 2 MC III EXP Flow Analyzer Figure 2 18 Intrinsically safe RS 485 connection based on control drawing 9A 50053010 applicable to CSA approved device only ...

Страница 35: ...29 MC III EXP Flow Analyzer Section 2 ...

Страница 36: ...ed gas measurement or gas or liquid measurement requiring multipoint 2 to 12 point linearization calibration must be performed with the software user inter face see Section 4 page 41 Because the keypad is protected beneath the lid of the instrument the enclosure must be opened to access the keypad For this reason it is important to calibrate the instrument before installing it in a hazardous area ...

Страница 37: ...ted with the calibration factor typically pulses per gallon Press UP ARROW until the correct unit is displayed TEST Enter the decimal point position for the calibration factor Press LEFT ARROW to select the decimal point LOG 00000000 M3 BBL GAL LIT CF CF X1000 X1000 Press UP ARROW to change the position of the decimal point TEST Press LEFT ARROW to save the decimal point position and proceed with ...

Страница 38: ...FACTOR MENU Select no unit of measure Press UP ARROW until no unit is displayed as shown TEST 00000000 M 3 BBL GAL LIT CF CF X1000 X1000 Enter the decimal point position for the calculated divisor Press LEFT ARROW to select the decimal point LOG 00000000 M3 BBL GAL LIT CF CF X1000 X1000 Press UP ARROW to change the position of the decimal point TEST Press LEFT ARROW to save the decimal point posit...

Страница 39: ...he input sensitivity of the MC III EXP may be set to low medium or high when the input will be provided by a turbine flowmeter If the input will be provided in the form of a pulse from a pre amplifier or other device rather than directly from a turbine flowmeter the Pulse In pulse input setting in the Input Sensitivity menu should be selected See Section 2 page 13 for input wiring diagrams To Set ...

Страница 40: ...To clear the display press LEFT ARROW LOG and ENTER SAVE keys simulta neously To Configure the Total Display Enter the Display menu Press DISPLAY MENU DISPLAY MENU Select the unit of measure in which volume will be displayed Press UP ARROW until the correct unit is displayed Note If a calculated divisor was entered select user defined no units visible TEST 00000000 000000 M 3 BBL GAL LIT M 3 BBL G...

Страница 41: ...e desired volume unit of measure is displayed To read rate in terms of thousands of units press UP ARROW until both the unit and X1000 are displayed TEST Note If a calculated divisor was entered select user defined no units visible Enter the time base factor used to express flow rate Ex day in bbl day Press LEFT ARROW The time base factor in the bottom portion of the LCD window should begin blinki...

Страница 42: ...lowmeter The low or zero setting is the flow rate value that will produce a 4 mA output The high or full scale setting is the flow rate value that will produce a 20 mA output Typically the high value is greater than the low value as shown in Figure 3 2 Figure 3 2 4 20 mA output configuration See Analog 4 20 mA Rate Output page 25 for instructions on installing and wiring the 4 20 mA rate output Fl...

Страница 43: ...ARROW to select the next digit to the left Continue pressing UP ARROW and LEFT ARROW alternately to enter all remaining digits LOG Press ENTER The LCD will display the High flow rate and the decimal point in the numeric display will begin blinking SAVE ENTER Enter the decimal point position for the High flow rate The words 4 20 mA HIGH should appear at the bottom of the LCD Press UP ARROW to chang...

Страница 44: ...TPUT MENU Locate the Pulse Output setting Press ENTER repeatedly until the words Pulse Output appear in the lower display SAVE ENTER Enable or disable the pulse output Press UP ARROW to toggle output to on or off TEST Toggles between off and on Press ENTER If the pulse output is enabled the LCD will display Pulse Output Scaler and the decimal point in the numeric display will begin blinking SAVE E...

Страница 45: ...65535 excluding 252 to 255 and 64764 Press UP ARROW until the correct digit is displayed TEST Then press LEFT ARROW to select the next digit to the left Repeat using UP and LEFT arrows to enter all remaining digits LOG Press ENTER SAVE ENTER The Baud Rate menu prompt will appear immediately following the entry of the slave address See Entering the Baud Rate below for the baud rate entry procedure ...

Страница 46: ...40 Section 3 MC III EXP Flow Analyzer ...

Страница 47: ... your CD ROM drive The MC III install screen will load automatically 2 Click Install MC III on the introductory screen 3 Click on Next to initiate the installation and follow the instructions on the screen An MC III icon Figure 4 1 will appear on the desktop of the user s PC or laptop when installation is complete To access the interface software click on the MC III icon on your desktop or go the ...

Страница 48: ... proceed with running the software and configuring the device To connect to the MC III device via software perform the following steps 1 Click on the NuFlo MC III icon on the desktop or select Start Programs NuFlo MC III 2 1 0 MC III 2 1 0 The Welcome screen Figure 4 2 will appear and a Select COM Port window will prompt the user to select the communications port to be used to connect with the MC ...

Страница 49: ...oad previously saved configuration settings A checkbox at the bottom of the Device Autorun Options screen allows the user to bypass the Device Autorun Options screen and perform a selected function each time the software connects to the instrument Example To download all logs on connection select Download all logs from the Device Autorun Options screen and check the Always do checkbox Each time th...

Страница 50: ...the desktop application icon For more information on disabling the express connect feature and changing communications options see Express Connect Option page B 4 Canceling Express Connect To temporarily cancel the express connect function without exiting the software program click in the LCD area of the device on the Welcome screen or choose File Cancel Express Connect from the menu bar Figure 4 ...

Страница 51: ...on Options Select COM Port Figure 4 7 and select the appropriate COM port from the list of ports detected Figure 4 7 COM port selection menu Software Connection in Multi Device Network In most cases the automatic launch or express connect feature is a convenient time saver However if multiple devices are daisy chained together in a network this feature can interfere with the user s ability to conn...

Страница 52: ...rk communications 5 Adjust the time out setting if necessary 6 Click Search The software will scan all addresses specified and display all instruments connected 7 Click on the appropriate address to connect to a device Note In daisy chain configurations verify that each device has a unique slave address Figure 4 8 Automatic detection of all connected devices A user who knows the address of a speci...

Страница 53: ...a user change is made After downloading these logs from the instrument the instrument saves the data in a file By default the logs are saved as csv files The file format of the auto save flow log and event log files is user configurable Users can configure the instrument to download the auto save flow and event logs as Excel xls files by selecting Options Program Options Downloading from the menu ...

Страница 54: ...ure 4 12 page 49 gives users complete access to all configuration param eters The Advanced screen Figure 4 13 page 49 provides access to Modbus registers that can be modified to change configuration parameters recommended only for system configurators and host programmers If the desired configuration settings have been saved previously the configuration file can also be uploaded eliminating the ne...

Страница 55: ...XP Flow Analyzer Section 4 Figure 4 12 MC III Main configuration option for complete access to configurable parameters Figure 4 13 Advanced Access configuration option for system configurators and host programmers ...

Страница 56: ...in the Calibration Wizard are written to the program Previous configuration settings are saved automatically in C NuFlo log data MC III Config Backup Files Using the Pencil Tool The data entry fields in the Configuration Wizard are highly intuitive and most can be completed by clicking in the field and entering new data or selecting a checkbox For data fields that require the user to enter a value...

Страница 57: ... page 60 Rate Display units decimal location Yes Step 5 Turbine Input page 61 Input Type Yes Step 3 Turbine Input page 61 Input Sensitivity Yes Turbine Input page 61 Input Cut off Thresholds Turbine Input page 61 Calculation Period seconds Turbine Input page 61 K Factor Yes Step 4 K Factor Entry page 62 Multipoint K Factor K Factor Entry page 62 Gas Volume Correction K Factor Entry page 64 4 20 mA...

Страница 58: ...ent settings and the LCD displays will automatically update with each poll Live Updates Checkbox The Live Updates option is enabled by default However in the event that slow communication speeds are used or the system times out frequently the user can uncheck the Live Updates checkbox and periodically query the system by clicking on the LCD graphic on the Main screen Reset Flow Total Button The fl...

Страница 59: ...llows the user to close out of a submenu screen without saving new settings and returns the user to the Main screen Pencil Tool for Data Entry The data entry fields in the MC III Main sub menu screens are highly intuitive and most can be completed by clicking in the field and entering new data or selecting a checkbox For data fields that require the user to enter a value such as a K factor and des...

Страница 60: ...54 Section 4 MC III EXP Flow Analyzer Configuration Submenus See Scroll Bar on MC III Main Screen Wellsite Information System Setup Communications Port Turbine Input K Factor Entry 4 20 mA Output ...

Страница 61: ...55 MC III EXP Flow Analyzer Section 4 Configuration Submenus cont d Pulse Output Flow Archive Event Archive ...

Страница 62: ...d on the computer if the time difference exceeds 60 seconds To change the clock synchronization threshold to a value other than 60 seconds see General Options page B 1 A user can synchronize the instrument and computer clocks at any time by clicking the Sync to Computer Time button on the System Setup screen Contract Hour Hourly flow totals are logged in the archive on the hour The contract hour d...

Страница 63: ...s change The firmware version number shown may assist technical support personnel in troubleshooting an operational issue Serial Number The serial number of your MC III EXP can be used to track the history of your unit to include warranty status Communications Port The Communications Port screen Figure 4 18 allows users to change the settings that are required for Modbus communication Figure 4 18 ...

Страница 64: ...on When connected devices are capable of switching baud rates automatically or when devices are directly connected to an MC III EXP a user may configure the MC III interface to automatically negotiate the fastest baud rate during device connection This negotiated baud rate does not replace the configured baud rate but rather provides a temporary boost of baud rate while the computer is connected t...

Страница 65: ...y sufficient Software Communication Options The default timing parameters in the MC III EXP support communication with most radios and Modbus devices However if the MC III EXP is used with a device that has a very slow response time it may be necessary to adjust the timing parameters to enhance performance For information about these parameters see Timing Parameters page B 4 Wellsite Information T...

Страница 66: ...be entered as pulses per unit For more information see Entering a Calculated Divisor page 32 To display the volume in multiples of 1 000 units check the Multiplier checkbox The device will display volumes up to 10 000 000 however a maximum of eight digits including decimals are visible at a time Therefore once the volume including decimals grows beyond eight digits digits on the leading edge of th...

Страница 67: ...guration The MC III EXP accepts either a turbine input or a pulse input When the turbine input is selected the user can also specify one of three sensitivity levels low medium or high to help minimize noise interference in the signal reception A low sensitivity setting will detect a signal of approximately 20 mV peak to peak while a high sensitivity setting will detect only signals that exceed 40 ...

Страница 68: ...of selecting the K Factor unit and type linear or multipoint In selecting the unit users can choose from five preprogrammed units pulses per gallon barrel cubic meter cubic foot or liter If a calculated divisor is to be used pulses per unit should be selected K Factor Type For linear calibration the user need only select the Linear checkbox and enter the K factor of the turbine meter To enter the ...

Страница 69: ...onfiguration parameters the user can restore the last saved set of configuration settings to the instrument Figure 4 25 Prompt to copy previous calibration settings to backup Select yes to save the previous calibration factor to memory The date and time of this backup is displayed next to the Retrieve K Factor Backup button on the K Factor Entry screen Figure 4 26 page 64 Only the last saved backu...

Страница 70: ...ll other Gas Volume Correction data fields will be activated Figure 4 26 Figure 4 26 Gas volume correction settings on K Factor Entry screen Atmospheric pressure is set at 14 73 psia by default but can be adjusted to local conditions To compensate the gas measurement to standard conditions complete the following steps 1 Enter the atmospheric pressure 2 Enter the base pressure and unit The base pre...

Страница 71: ...itions Figure 4 27 To automatically calculate the compressibility factor enter the gas composition and click on Calculate The software will calculate flowing gas compressibility in accordance with the AGA 8 detail method The K Factor Entry screen will reappear and the calculated super compressibility factor will be displayed Figure 4 27 Gas Composition screen ...

Страница 72: ...e Zero and full scale values can be configured to represent any flow rate range within the range of the flowmeter A test mode function is also included allowing a user to calibrate and or verify the output received by an end device Figure 4 28 4 20 mA Output screen The low or zero setting is the flow rate value that will produce a 4 mA output The high or full scale setting is the flow rate value t...

Страница 73: ...ow rate value that will produce a 4 mA output Adjust the decimal position if necessary using the slide bar A flow rate less than or equal to this minimum setpoint will result in an output of 4 mA 3 Click on the pencil icon next to the High Flow Rate field and enter the high or full scale flow rate value that will produce a 20 mA output Adjust the decimal position if necessary using the slide bar A...

Страница 74: ...mA Output button at the bottom of the 4 20 mA Output screen The test page will appear Figure 4 31 and the 4 20 mA Output option will be temporarily disabled To test the output enter a value in the Output Current mA field and press Set Output Figure 4 31 4 20 mA output test screen ...

Страница 75: ...pulse length pulse width determines the length of each output pulse in milliseconds ms 3 Click on the pencil icon next to the scale field to open a data entry window Figure 4 33 page 70 and enter the scale factor Adjust the decimal position if necessary using the slide bar The scale factor sets the volume increment that will cause a pulse output to occur The unit for this factor is determined by t...

Страница 76: ...lows users to test the pulse output by writing a value to the pulse accumulator Such tests can aid in troubleshooting problems with hardware compatibility threshold settings and pulse duration settings To use the test mode press the Test Pulse Output button at the bottom of the Pulse Output screen The test page will appear Figure 4 34 and the Pulse Output option will be temporarily disabled To tes...

Страница 77: ...3 Example config050209133922 mc3 is a configuration file that was downloaded on February 9 2005 at 1 39 22 p m Saving a Configuration File To save current configuration settings for future reference perform the following steps 1 Select File Save Configuration File Figure 4 35 A Save MC3 Configuration File screen Figure 4 36 will appear prompting the user to save the file to the computer hard drive...

Страница 78: ...lowing steps 1 From the Main screen select File Return to Welcome Screen Figure 4 37 2 Click on the LCD to connect to the MC III EXP 3 Click Upload a configuration Figure 4 38 page 73 and click Do It Now A Load MC3 Configuration File window will appear Figure 4 39 page 73 displaying the contents of the MC III folder 4 Click on the appropriate well name folder select the configuration file of your ...

Страница 79: ...73 MC III EXP Flow Analyzer Section 4 Figure 4 38 Upload a Configuration option Figure 4 39 Default directory for configuration files ...

Страница 80: ...dvanced Access option is not required for the routine operation of the MC III EXP and novice users should not access this portion of the software unless instructed to do so by Cameron technical support personnel Data retrieved from the MC III EXP while in Advanced access mode can be logged to a file by enabling the Automatically log data polls checkbox on the Advanced Options screen Figure B 6 pag...

Страница 81: ...75 MC III EXP Flow Analyzer Section 4 ...

Страница 82: ...oad only new logs option is selected from the Device Autorun Options menu and the Always do checkbox is checked the software will download both flow logs and event logs each time the software connects to the MC III EXP Figure 5 1 Figure 5 1 Device Autorun Options screen allows automated log downloads with every connection Auto Save Log Formats The MC III EXP automatically saves daily flow logs on ...

Страница 83: ...er _ date YYYYMMDD _ time hhmmss _ log type indicator where the log type indicator is H for hourly D for daily or E for event Example 16_20050302_102031_H xls is an hourly log file from the MC III EXP serial number 16 that was downloaded on March 2 2005 at 10 20 31 AM Flow Archive The MC III EXP automatically saves daily flow logs on the contract hour and hourly flow logs The Flow Archive screen F...

Страница 84: ...igure 5 4 Download Only New Flow Logs will display only flow logs that have been created since the last download was performed Tabular views of the archive record Figure 5 5 page 79 include a time stamp showing the exact time each log was recorded as well as flow volume run time and supply voltage Trend views Figure 5 6 page 80 show the flow volume and time stamp only Figure 5 4 Menu for downloadi...

Страница 85: ...owhead cursor is paired with dotted circle As the user drags the cursor across the chart the circle s position corresponds with the record displayed at the top of the screen Figure 5 6 page 80 The circle s snap function allows the user to pinpoint transitional points within the trend display the greater the zoom the more precise the navigation Note The interactive cursor cannot be turned off To zo...

Страница 86: ...appropriate tab at the bottom of the Flow Archive screen and press the Print button in the upper right corner of the Flow Archive screen If the display is tabular the button will read Print Table if the display is a chart the button will read Print Chart A Print Preview screen will appear displaying the image to be printed To print the report select File Print from the task bar Figure 5 7 Figure 5...

Страница 87: ...e 5 9 2 Enter a filename The filename extension will be rps 3 Click Save By default log archive reports are saved in C NuFlo log data MC III WELL NAME However the user can specify a new location if desired The wellname folder will bear the well name that appears on the Wellsite Information screen If no well name is entered on this screen the folder will be named NO_WELLNAME Figure 5 9 Save Report ...

Страница 88: ...views in the upper right corner of the screen 2 Select File Load from the task bar at the top of the page Figure 5 10 A Load Report window will open Figure 5 11 3 Click on the report you wish to view A preview of the report will appear in the right portion of the win dow 4 Click Open Figure 5 10 Menu for loading a saved report Figure 5 11 Load Report screen for viewing saved flow log reports ...

Страница 89: ...rs click Save By default exported logs are saved in C NuFlo log data MC III WELL NAME however the user can specify a new loca tion if desired Figure 5 13 page 84 The wellname folder will bear the well name that appears on the Wellsite Information screen If no well name is entered on this screen the folder will be named NO_ WELLNAME Important Users can also specify the file format to be used for al...

Страница 90: ...e Event Archive screen Figure 5 14 allows users to download view export and print up to 345 user event logs Event logs are generated to track user changes such as K Factor changes input setting changes power on and watch dog resets and the flow and frequency cut off settings Figure 5 14 Event Archive screen ...

Страница 91: ...nload Only New Event Logs will display only flow logs that have been created since the last download was performed Tabular views of the archive record Figure 5 16 include a time stamp showing the exact time each log was recorded as well as the name of the register changed and the old and new values assigned to that register Figure 5 15 Menu for downloading event logs from Event Archive screen Figu...

Страница 92: ...nting and saving an event log report is nearly identical to the procedure for printing and saving a flow log report See the flow log screen captures pages 77 and 78 for reference Exporting Event Logs Event logs can be directly exported to an xls or csv file for ease in viewing and distributing To export a file perform the following steps 1 Click the Export Data button near the top of the Event Arc...

Страница 93: ...87 MC III EXP Flow Analyzer Section 5 Figure 5 17 Dropdown menu for exporting log data ...

Страница 94: ...88 Section 5 MC III EXP Flow Analyzer ...

Страница 95: ...nition of hazardous atmospheres do not remove the cover unless the area is void of combustible gas and vapors Replace the battery pack only with battery part number 9A 90099000 WARNING The lithium battery that powers the MC III EXP is a sealed unit however should a lithium battery develop a leak toxic fumes could escape upon opening the enclosure Ensure that the instrument is in a well ventilated ...

Страница 96: ...ssembly 3 Lift the display keypad assembly from the enclosure making sure the circuit assembly does not contact the enclosure 4 Loosen the velcro strap disconnect the battery from the J1 connector on the circuit assembly and remove the battery from the enclosure Figure 6 2 Figure 6 2 Removal replacement of lithium battery ...

Страница 97: ...ttery pack should be replaced WARNING To prevent ignition of hazardous atmospheres do not remove the cover while circuits are alive Under normal conditions the MC III EXP poses no hazard when opened in a safe area Replace the battery pack only with battery pack part number 9A 30099007 Important Press the ENTER SAVE key on the keypad before replacing the alkaline battery to save the accumulated tot...

Страница 98: ...6 3 Removal of faceplate keypad assembly 3 Lift the display keypad assembly from the enclosure 4 Loosen the Velcro strap disconnect it from the J1 connector on the circuit assembly and remove the bat tery from the enclosure Figure 6 4 Figure 6 4 Removal replacement of alkaline battery pack ...

Страница 99: ...tic techniques such as wearing anti static wrist strap or touching metal to establish an earth ground prior to handling a board Important If possible record the accumulated total and all configuration settings before replacing the circuit board This information can be recorded by hand or captured by saving a con figuration file that can be reloaded into the unit after the circuit board is replaced...

Страница 100: ...thumb and forefinger see white arrows in Figure 6 6 below b Squeeze both sides of the clip and gently pull to release the clip from the plastic connector that holds it in place DO NOT PULL on the ribbon cable When the black plastic clip is properly disengaged the cable will release freely Figure 6 6 To release the ribbon cable from the connector press in on the side tabs of the connector white arr...

Страница 101: ...perform the following steps 1 Unscrew the cover of the enclosure counter clockwise until it separates from the main body of the enclo sure 2 Using a small standard blade screwdriver remove the two 4 40 7 8 screws located to the right and left side of the display 3 Lift the display keypad assembly from the enclosure 4 Remove the two 4 40 5 16 screws fastening the circuit assembly to the keypad Figu...

Страница 102: ...hich will erase all configuration settings and log data To clear the EEPROM choose Options Program Options from the menu bar select Advanced from the dropdown options list and click on the Clear EEPROM button Figure 6 7 Technical assistance is typically required for upgrading firmware Contact Cameron s Measurement Systems Division to arrange an upgrade WARNING Clicking the Clear EEPROM button will...

Страница 103: ...05 Desiccant Packet 1 9A 30054001 Assembly Explosion Proof Reset Control Switch with Extension Fits in Female Pipe Thread for Standard Enclosure CSA 1 9A 50053008 Assembly Reset Switch Explosion Proof for Alternate Enclosure Red Rim on Cover CSA 1 9A 50053009 IS Barrier RS 485 CSA 1 9A 90017004 Cable Assembly 3 4 in NPT Explosion Proof Union 2 Pin Connector 10 in for External RS 485 Communications...

Страница 104: ...embly External Explosion Proof Reset Control Switch with Extension Fits 3 4 in Female Pipe Thread ATEX 1 9A 90017008 Cable Assembly 3 4 in NPT Explosion Proof Brass Union 2 Pin Connector 10 in for External RS 485 Communications ATEX 1 9A 101283116 Converter RS 485 to RS 232 9 Pin with 20 ft Cable 1 9A 30025001 Tube Standoff Stainless Steel for Barton 7000 Series Turbine Meters 1 18 in Hex X 3 56 i...

Страница 105: ...99 MC III EXP Flow Analyzer Section 6 ...

Страница 106: ...as a brass adapter Figure A 1 Explosion proof reset control switch CSA approved stainless steel adapter shown The reset control switch assembly mounts in either threaded conduit opening in the instrument housing The CSA approved assembly is available in two variations for use with the standard enclosure shown above and the alternate enclosure shown in Figure 2 6 page 18 The alternate enclosure is ...

Страница 107: ...reset the volume to zero Viewing Daily Logs To view daily logs with the explosion proof switch press and release the switch Do not depress the switch for more than 1 second The words Daily Volume Archive will scroll across the bottom of the LCD and the day index Figure A 3 will display 01 The daily flow total recorded at the last contract hour will appear at the top of the LCD The index number rep...

Страница 108: ...gure A 4 It may be relocated to either conduit opening in the instrument housing Caution This adapter is available in two models a plated steel CSA approved model and a brass ATEX approved model An RS 232 to RS 485 converter cable available from Cameron s Measurement Systems Division is required for connecting the adapter to a laptop computer See MC III Parts List CSA page 97 and MC III Parts List...

Страница 109: ...explosion proof rating applies only when the union nut and blanking plug are secured in place When the union is broken the device is no longer explosion proof WARNING Before disassembling the union nut and blanking plug make sure the area is non hazardous To connect a PC or laptop to the communications adapter perform the following steps 1 Unscrew the union nut to expose the connector socket shown...

Страница 110: ...arately from the MC III EXP Flow Ana lyzer the conduit openings in the enclosure will be sealed with brass or stainless steel plugs Do not remove the plug from the enclosure to install the adapter unless the area is known to be non hazardous To install a communications adapter purchased separately from an MC III EXP perform the following steps 1 Thread the cable of the adapter through a conduit op...

Страница 111: ...er socket a blanking plug and a union nut Figure A 8 A CD includes the software for installing the driver When the USB connection is ordered with an MC III the USB adapter is pre installed at the factory No field wiring is required If the USB adapter is purchased as a kit see Adapter Kit Installation page A 7 for installation instructions Important Do not connect the USB adapter to a computer unti...

Страница 112: ...ea is present ensure the union nut and blanking plug are properly fitted in the conduit opening The explosion proof rating applies only when the union nut and blanking plug are secured in place When the union is broken the device is no longer explosion proof WARNING Before disassembling the union nut and blanking plug make sure the area is non hazardous Covering the Adapter When the USB port is no...

Страница 113: ...ed immediately nest the blanking plug inside the union nut and screw the union nut onto the adapter to cover the USB socket Hand tighten to ensure a snug connection Important Before using the USB adapter for the first time it is necessary to install a USB driver on the computer used to run MC III software The driver is supplied on the MC III software CD provided with the USB adapter kit For step b...

Страница 114: ...A 9 MC III EXP Flow Analyzer Appendix A ...

Страница 115: ...l clock with the time displayed on the user s computer The MC III EXP includes a real time clock for timekeeping and log time stamps and the internal time and date is preset at the factory However if the factory set time and date are inaccurate for the user for example if the user is in a different time zone the program will automatically detect the difference between the device s internal time an...

Страница 116: ...ws the user to automate the selected function each time the software connects to the instrument The Autorun Options screen in the Program Options menu allows a user to terminate all autorun functions or change the autorun selection To change an autorun setting that is to initiate an autorun action to terminate an autorun action or to change to a different autorun action at the next connection sele...

Страница 117: ...ging autorun option selection Communications Options The Communications Options screen Figure B 4 allows users to customize communication parameters for optimizing performance depending on the communication path Figure B 4 Menu for changing communication parameters ...

Страница 118: ...his function is disabled To enable automatic baud rate negotiation on device connect check the Attempt auto negotiation check box in the Communications Option screen Figure B 4 page B 3 and click OK To initiate an immediate search for the fastest baud rate without exiting to the Welcome screen check the Enable auto negotiated baud rate checkbox click the Test Now button to the right of the checkbo...

Страница 119: ...t The optimal setting is recommended when the software is connecting directly to the instrument The fixed timeout type is recommended when data is being transmitted through a radio or other network device serial to TCP IP and there are recognizable delays in the communication system See Figure B 4 page B 3 Timeout Period When a fixed timeout period type is selected the user enters the timeout peri...

Страница 120: ...assistance is typically required for upgrading firmware Contact Cameron s Measurement Systems Division to arrange an upgrade WARNING Clicking the Clear EEPROM button will delete all configuration settings and log records in the MC III EXP memory Figure B 6 Menu for clearing EEPROMs and enabling automatic data logs Automatic Data Logging Data retrieved from the MC III EXP while in Advanced access m...

Страница 121: ...B 7 MC III EXP Flow Analyzer Appendix B ...

Страница 122: ...es The internal component thionyl chloride is hazardous under the criteria of the Federal OHSA Hazard Communica tion Standard 29 CFR 1920 1200 Before shipping a lithium battery or equipment containing a lithium battery verify that the packaging and labeling conforms with the latest version of all applicable regulations The transport of the lithium batteries is regulated by the United Nations Model...

Страница 123: ...C 2 Appendix C MC III EXP Flow Analyzer ...

Страница 124: ...rted by the MC III are as follows Function Code Hex Description 03 Read Holding Registers 05 Preset Boolean for Enron event record acknowledgement 10 Preset Multiple Registers For the read holding and preset multiple registers the instrument supports the full 250 bytes of data in a message This corresponds to 125 registers in 16 bit holding register size and 62 registers in 32 bit holding register...

Страница 125: ...well name is a string of 10 unsigned characters that is implemented as 5 Packed ASCII registers Here is an example of a well name that contains the string Test Well 413 Register Hexadecimal ASCII Characters 210 54 65 Te 211 73 74 St 212 20 57 SPACE W 213 65 6C el 214 6C 20 l SPACE 215 34 31 41 216 33 FF 3 UNUSED Unused characters at the end of each string will report 0xFF hexadecimal Registers Eac...

Страница 126: ...Version 1 00 U16 RO 1003 03EB Manufacture Date MMYY U16 RO 1004 03EC Sales Date MMYY U16 RO 1005 03ED Serial Number 1 U16 RO 1006 03EE Serial Number 2 U16 RO 1007 03EF Power Mode 0 High Power 1 Low Power U16 R W 1 1008 03F0 Internal System Sample Rate Number of seconds to measure temperature and battery voltage U16 R W 3600 1009 03F1 Slave Address 1 65535 not including 252 255 or 64764 U16 R W 1 1...

Страница 127: ...e set at the factory and are read only These registers are formatted as MMYY For example a value of 0905 represents the date September 2005 Slave Address register 1009 The Modbus slave address is an unsigned word U16 data type that has a range of values from 1 to 65535 not including 252 through 255 or 64764 The slave address is configured from a laptop or via the keypad and is stored in nonvolatil...

Страница 128: ...essage The time and date can also be read in the holding register groups as floating point data Input Configuration Register Decimal Register Hex Description Data Type Access Default 2000 07D0 Volume Units Units 0 No Units 1 Gallons 2 Barrels 3 Cubic Meters 4 Cubic Feet 5 Liters Units 1000 16 No Units 17 Gallons 18 Barrels 19 Cubic Meters 20 Cubic Feet 21 Liters U16 R W 2 Standard Units 32 No Unit...

Страница 129: ...6 Cubic Feet 37 Liters Std Units 1000 48 No Units 49 Gallons 50 Barrels 51 Cubic Meters 52 Cubic Feet 53 Liters 2003 07D3 Rate Time Base 0 Second 1 Minute 2 Hour 3 Day U16 R W 3 2004 07D4 Rate Decimal Point Location 0 No digits to the right of the decimal point 1 Tenths 2 Hundredths 3 Thousandths U16 R W 2 2005 07D5 Calculation Period sec U16 R W 4 2006 07D6 Turbine Meter Input Configuration 0 Pul...

Страница 130: ...n Frequency 7 Hz FP R W 1 00 2025 07E9 Calibration Frequency 8 Hz FP R W 1 00 2027 07EB Calibration Frequency 9 Hz FP R W 1 00 2029 07ED Calibration Frequency 10 Hz FP R W 1 00 2031 07EF Calibration Frequency 11 Hz FP R W 1 00 2033 07F1 Calibration Frequency 12 Hz FP R W 1 00 2035 07F3 Calibration Factor 1 pulses per configured factor unit FP R W 900 00 2037 07F5 Calibration Factor 2 pulses per co...

Страница 131: ...trument Therefore Calibration Frequency 1 should be the smallest of all calibration frequencies Output Configuration Register Decimal Register Hex Description Data Type Access Default 4000 0FA0 Pulse Output Source 0 Test Mode Disabled 1 Enabled U16 R W 0 4001 0FA1 Pulse Output Duration time is register value multiplied by 10 ms U16 R W 10 100 mS 4002 0FA2 Pulse Output Decimal Point Location U16 R ...

Страница 132: ...6 4279 1F50 Daily Run Time seconds FP RO 17019 8018 427B 1F52 Hourly Total in terms of configured volume units FP RO 17021 8020 427D 1F54 Hourly Run Time seconds FP RO 17023 8022 427F 1F56 Polling Total in terms of configured volume units FP RO 17025 8024 4281 1F58 Polling Run Time seconds FP RO 17027 8026 4283 1F5A Previous Day Total in terms of configured volume units FP RO 17029 8028 4285 1F5C ...

Страница 133: ...78 Hourly Run Time seconds FP RO 17059 8058 42A3 1F7A Polling Total base unit FP RO 17061 8060 42A5 1F7C Polling Run Time seconds FP RO 17063 8062 42A7 1F7E Previous Day base unit FP RO 17065 8064 42A9 1F80 Previous Day Run Time seconds FP RO 17067 8066 42AB 1F82 Previous Hour base unit FP RO 17069 8068 42AD 1F84 Previous Hour Run Time seconds FP RO 17071 8070 42AF 1F86 Previous Polling Total base...

Страница 134: ...er 2003 For example if the settings for the volume unit is 2 BBL all of the total parameters such as Grand Total 17011 Daily Total 17015 etc will be in terms of barrels The values in these registers will change if the user changes the units of measurement that appear on the LCD The second block is in terms of base units These register values are independent of the configured volume units in the Vo...

Страница 135: ...vious Hour Total 17031 and Previous Polling Total 17035 These totals are available in terms of configured units and base units Refer to Base Units Configured Units page D 11 for details Pulse Output Pulses register 17077 When the pulse output is enabled see Pulse Output Source register 4000 this register indicates the current number of output pulses to be sent to the output relay based on the conf...

Страница 136: ...7005 1B5D Grand Total in terms of configured volume units FP32 RO 7006 1B5E Instantaneous Flow Rate in terms of configured flow rate units FP32 RO 7007 1B5F Daily Total in terms of configured volume units FP32 RO 7008 1B60 Daily Run Time seconds FP32 RO 7009 1B61 Hourly Total in terms of configured volume units FP32 RO 7010 1B62 Hourly Run Time seconds FP32 RO 7011 1B63 Polling Total in terms of c...

Страница 137: ...2 RO 7027 1B73 Hourly Total base unit FP32 RO 7028 1B74 Hourly Run Time seconds FP32 RO 7029 1B75 Polling Total base unit FP32 RO 7030 1B76 Polling Run Time seconds FP32 RO 7031 1B77 Previous Day base unit FP32 RO 7032 1B78 Previous Day Run Time seconds FP32 RO 7033 1B79 Previous Hour base unit FP32 RO 7034 1B7A Previous Hour Run Time seconds FP32 RO 7035 1B7B Previous Polling Total base unit FP32...

Страница 138: ...cters PA RO 220 00DC Site Location 20 characters PA RO 300 012C Site ID 20 characters PA RO 310 0136 Tag Name 10 characters PA RO 315 013B Legal Description 34 characters PA RO 400 0190 Sensor Model Number 20 characters PA RO 410 019A Sensor Serial Number 20 characters PA RO 420 01A4 Measurement Type 20 characters PA RO 500 01F4 User Note 64 characters PA RO These registers provide access to the A...

Страница 139: ...pe Access 32 0020 Enron Modbus Event Log Register Refer to Enron Event Record Format RO 700 02BC Enron Modbus Hourly Log Refer to Enron Hourly Daily Record Format RO 701 02BD Enron Modbus Daily Log Refer to Enron Hourly Daily Record Format RO 7000 1B58 Hourly Pointer 1 to 768 FP32 RO 7001 1B59 Daily Pointer 1 to 384 FP32 RO 7002 1B5A Event Counter 1 to 345 FP32 RO Enron Hourly Daily Record Format ...

Страница 140: ...s Found FP32 As Left FP32 The Event Log status is a 16 bit value used to indicate the reset source in the event log The following table indicates the reset status Reset Status Status Code Value Normal 0 Power On Reset 3 Watch Dog 8 Software Reset 16 Flash Memory Error 32 Log Capacity Log Type Capacity Hourly Logs 768 Daily Logs 384 Event Logs 345 ...

Страница 141: ...D 18 Appendix D MC III EXP Flow Analyzer ...

Страница 142: ... s exclusive remedy in any case of action whether in contract tort breach of warranty or otherwise arising out of the sale or use of any products software supplies or materials is expressly limited to the replacement of such products software supplies or materials on their return to Seller or at Seller s option to the allowance to the customer of credit for the cost of such items In no event shall...

Страница 143: ......

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