Emerson Micro Motion LNG Series Configuration And Use Manual Download Page 42

Page: 42 / 100

Effect of

Temperature Damping

on process measurement

Temperature Damping

affects all processes and algorithms that use temperature data from

the internal sensor RTD.

Temperature compensation

Temperature compensation adjusts process measurement to compensate for the effect of
temperature on the sensor tubes.

Configure process measurement

Micro Motion

LNG Series Meters

Summary of Contents for Micro Motion LNG Series

Page 1: ...Configuration and Use Manual MMI 20032809 Rev AA February 2017 Micro Motion LNG Series Meters ...

Page 2: ...727 Canada 1 303 527 5200 The Netherlands 31 0 704 136 666 New Zealand 099 128 804 Mexico 41 0 41 7686 111 France 0800 917 901 India 800 440 1468 Argentina 54 11 4837 7000 Germany 0800 182 5347 Pakistan 888 550 2682 Brazil 55 15 3413 8000 Italy 8008 77334 China 86 21 2892 9000 Venezuela 58 26 1731 3446 Central Eastern 41 0 41 7686 111 Japan 81 3 5769 6803 Russia CIS 7 495 981 9811 South Korea 82 2...

Page 3: ...on the transmitter configuration 15 3 3 Restore the factory configuration 15 Chapter 4 Configure process measurement 17 4 1 Configure mass flow measurement 17 4 1 1 Configure Mass Flow Measurement Unit 17 4 1 2 Configure Flow Damping 19 4 1 3 Configure Mass Flow Cutoff 20 4 2 Configure volume flow measurement for liquid applications 21 4 2 1 Configure Volume Flow Type for liquid applications 21 4 ...

Page 4: ...ter 6 Integrate the meter with the control system 45 6 1 Configure events 45 6 1 1 Configure an enhanced event 45 6 2 Configure digital communications 46 6 2 1 Configure Modbus RS 485 communications 47 6 2 2 Configure RS 485 terminals 48 6 2 3 Configure Digital Communications Fault Action 49 Chapter 7 Complete the configuration 51 7 1 Back up transmitter configuration 51 7 2 Enable write protectio...

Page 5: ...measurement problems 78 10 6 Check power supply wiring 78 10 7 Check grounding 79 10 8 Check for radio frequency interference RFI 79 10 9 Check for two phase flow slug flow 80 10 10 Check the drive gain 80 10 10 1 Collect drive gain data 81 10 11 Check the pickoff voltage 81 10 11 1 Collect pickoff voltage data 82 10 12 Check for internal electrical problems 82 10 12 1 Check the sensor coils 83 Ap...

Page 6: ...Contents iv Micro Motion LNG Series Meters ...

Page 7: ...Part I Getting Started Chapters covered in this part Before you begin Quick start Getting Started Configuration and Use Manual 1 ...

Page 8: ...Getting Started 2 Micro Motion LNG Series Meters ...

Page 9: ...ation manual The installation complies with all applicable safety requirements The user is trained in applicable safety standards 1 2 Meter model codes Your device can be identified by the model code on the device tag The transmitter model number has the following form LNGM10S N P Z D I N Model codes and device types Table 1 1 Model code Description I O and communications N Standard case One dedic...

Page 10: ...er documentation CD www micromo tion com Modbus host Service port Modbus RS 485 Complete configuration and commissioning None Modbus Interface Tool MIT available at www micromotion com 1 4 Additional documentation Micro Motion provides additional documentation to support the installation and operation of the meter Additional documentation and resources Table 1 3 Topic Document Transmitter installa...

Page 11: ...All documentation resources are available on the Micro Motion web site at www micromotion com cn or on the Micro Motion user documentation DVD Before you begin Configuration and Use Manual 5 ...

Page 12: ...Before you begin 6 Micro Motion LNG Series Meters ...

Page 13: ...ause an explosion 2 Turn on the electrical power at the power supply Postrequisites Although the sensor is ready to measure shortly after power up the electronics can take up to 10 minutes to reach thermal equilibrium Therefore if this is the initial startup or if power has been off long enough to allow components to reach ambient temperature allow the electronics equalize for approximately 10 min...

Page 14: ...ensor it is paired with The characterization parameters also called calibration parameters describe the sensor s sensitivity to flow density and temperature Depending on your sensor type different parameters are required Values for your sensor are provided by Micro Motion on the sensor tag or the calibration certificate Tip If your meter was ordered as a unit it has already been characterized at t...

Page 15: ... any available method Connect to the transmitter with ProLink III and read the value for Mass Flow Rate in the Process Variables panel Postrequisites If the reported mass flow rate is not accurate Check the characterization parameters Review the troubleshooting suggestions for flow measurement issues 2 6 Verify the zero Verifying the zero helps you determine if the stored zero value is appropriate...

Page 16: ...oblem then verify the zero or zero the meter You may verify the zero or zero the meter if a low severity alert is active Procedure 1 Prepare the meter a Allow the meter to warm up for at least 20 minutes after applying power b Run the process fluid through the sensor until the sensor temperature reaches the normal process operating temperature c Stop flow through the sensor by shutting the downstr...

Page 17: ...low rate with no flow damping or mass flow cutoff ap plied An adaptive damping value is applied only when the mass flow rate changes dra matically over a very short interval Unit configured mass flow measurement unit Zero Stability A laboratory derived value used to calculate the expected accuracy for a sensor Under laboratory conditions at zero flow the average flow rate is expected to fall withi...

Page 18: ...Quick start 12 Micro Motion LNG Series Meters ...

Page 19: ...his part Introduction to configuration and commissioning Configure process measurement Configure device options and preferences Integrate the meter with the control system Complete the configuration Configuration and commissioning Configuration and Use Manual 13 ...

Page 20: ...Configuration and commissioning 14 Micro Motion LNG Series Meters ...

Page 21: ...nd you must unlock it before you can change any configuration parameters By default the transmitter is not write protected Tip Write protecting the transmitter prevents accidental changes to configuration It does not prevent normal operational use You can always disable write protection perform any required configuration changes then re enable write protection 3 3 Restore the factory configuration...

Page 22: ...ctory configuration is not a common action You may want to contact Micro Motion to see if there is a preferred method to resolve any issues Introduction to configuration and commissioning 16 Micro Motion LNG Series Meters ...

Page 23: ...re Mass Flow Measurement Unit ProLink III Device Tools Configuration Process Measurement Flow Overview Mass Flow Measurement Unit specifies the unit of measure that will be used for the mass flow rate The unit used for mass total and mass inventory is derived from this unit Procedure Set Mass Flow Measurement Unit to the unit you want to use The default setting for Mass Flow Measurement Unit is g ...

Page 24: ...ounds per day sTon day Long tons 2240 pounds per hour lTon hr Long tons 2240 pounds per day lTon day Special unit special Define a special measurement unit for mass flow ProLink III Device Tools Configuration Process Measurement Flow Special Units Overview A special measurement unit is a user defined unit of measure that allows you to report process data totalizer data and inventory data in a unit...

Page 25: ...ou want to measure mass flow in ounces per second oz sec 1 Set Base Mass Unit to Pounds lb 2 Set Base Time Unit to Seconds sec 3 Calculate Mass Flow Conversion Factor a 1 lb sec 16 oz sec b Mass Flow Conversion Factor 1 16 0 0625 4 Set Mass Flow Conversion Factor to 0 0625 5 Set Mass Flow Label to oz sec 6 Set Mass Total Label to oz 4 1 2 Configure Flow Damping ProLink III Device Tools Configurati...

Page 26: ...40 96 Effect of Flow Damping on volume measurement Flow Damping affects volume measurement for liquid volume data Flow Damping also affects volume measurement for gas standard volume data The transmitter calculates volume data from the damped mass flow data 4 1 3 Configure Mass Flow Cutoff ProLink III Device Tools Configuration Process Measurement Flow Overview Mass Flow Cutoff specifies the lowes...

Page 27: ...w Volume Flow Type controls whether liquid or gas standard volume flow measurement will be used Restriction If you are using the concentration measurement application you must set Volume Flow Type to Liquid Gas standard volume measurement is incompatible with the concentration measurement application Procedure Set Volume Flow Type to Liquid 4 2 2 Configure Volume Flow Measurement Unit for liquid a...

Page 28: ...le 4 2 Unit description ProLink III label Cubic feet per second ft3 sec Cubic feet per minute ft3 min Cubic feet per hour ft3 hr Cubic feet per day ft3 day Cubic meters per second m3 sec Cubic meters per minute m3 min Cubic meters per hour m3 hr Cubic meters per day m3 day U S gallons per second US gal sec U S gallons per minute US gal min U S gallons per hour US gal hr U S gallons per day US gal ...

Page 29: ...f measure that allows you to report process data totalizer data and inventory data in a unit that is not available in the transmitter A special measurement unit is calculated from an existing measurement unit using a conversion factor Procedure 1 Specify Base Volume Unit Base Volume Unit is the existing volume unit that the special unit will be based on 2 Specify Base Time Unit Base Time Unit is t...

Page 30: ... Flow Label to pints sec 6 Set Volume Total Label to pints 4 2 3 Configure Volume Flow Cutoff ProLink III Device Tools Configuration Process Measurement Flow Overview Volume Flow Cutoff specifies the lowest volume flow rate that will be reported as measured All volume flow rates below this cutoff are reported as 0 Procedure Set Volume Flow Cutoff to the value you want to use The default value for ...

Page 31: ...olume Flow Type to Gas Standard Volume 4 3 2 Configure Standard Gas Density ProLink III Device Tools Configuration Process Measurement Flow Overview The Standard Gas Density value is used to convert the measured flow data to the standard reference values Prerequisites Ensure that Density Measurement Unit is set to the measurement unit you want to use for Standard Gas Density Procedure Set Standard...

Page 32: ...Cubic Feet per Minute Tip If the measurement unit you want to use is not available you can define a special measurement unit Options for Gas Standard Volume Flow Measurement Unit The transmitter provides a standard set of measurement units for Gas Standard Volume Flow Measurement Unit plus one user defined special measurement unit Different communications tools may use different labels for the uni...

Page 33: ... user defined unit of measure that allows you to report process data totalizer data and inventory data in a unit that is not available in the transmitter A special measurement unit is calculated from an existing measurement unit using a conversion factor Procedure 1 Specify Base Gas Standard Volume Unit Base Gas Standard Volume Unit is the existing gas standard volume unit that the special unit wi...

Page 34: ... thousands of standard cubic feet per minute 1000 cubic feet per minute b Gas Standard Volume Flow Conversion Factor 1 1000 0 001 4 Set Gas Standard Volume Flow Conversion Factor to 0 001 5 Set Gas Standard Volume Flow Label to KSCFM 6 Set Gas Standard Volume Total Label to KSCF 4 3 4 Configure Gas Standard Volume Flow Cutoff ProLink III Device Tools Configuration Process Measurement Flow Overview...

Page 35: ...he value you want to use You can configure two flow directions The first flow direction is configured and applied to the first totals The default setting is Forward The second flow direction is configured and applied to the second totals The default setting is Reverse 4 4 1 Options for Flow Direction Options for Flow Direction Table 4 4 Flow direction setting from ProLink III Relationship to Flow ...

Page 36: ...ange Reverse Totals do not change Totals do not change Totals increase Bidirectional Totals increase Totals do not change Totals decrease Absolute Value Totals increase Totals do not change Totals increase Negate Forward Totals do not change Totals do not change Totals increase Negate Bidirectional Totals decrease Totals do not change Totals increase 4 5 Configure density measurement The density m...

Page 37: ...g l Grams per milliliter g ml Kilograms per liter kg l Kilograms per cubic meter kg m3 Pounds per U S gallon lbs Usgal Pounds per cubic foot lbs ft3 Pounds per cubic inch lbs in3 API gravity degAPI Short ton per cubic yard sT yd3 4 5 2 Configure two phase flow parameters ProLink III Device Tools Configuration Process Measurement Density Overview The two phase flow parameters control how the transm...

Page 38: ... a two phase flow condition to clear before posting the alert The default value for Two Phase Flow Timeout is 0 0 seconds meaning that the alert will be posted immediately The range is 0 0 to 60 0 seconds Detecting and reporting two phase flow Two phase flow gas in a liquid process or liquid in a gas process can cause a variety of process control issues By configuring the two phase flow parameters...

Page 39: ... Density Damping to the value you want to use The default value is 1 28 seconds The range is 0 to 60 seconds Tips A high damping value makes the process variable appear smoother because the reported value changes slowly A low damping value makes the process variable appear more erratic because the reported value changes more quickly Whenever the damping value is non zero the reported measurement w...

Page 40: ...urement Gas standard volume values are always calculated from the value configured for Standard Gas Density 4 6 Configure temperature measurement The temperature measurement parameters control how temperature data from the sensor is reported 4 6 1 Configure Temperature Measurement Unit ProLink III Device Tools Configuration Process Measurement Temperature Overview Temperature Measurement Unit spec...

Page 41: ...les compensations and corrections that use temperature data from the sensor Procedure Enter the value you want to use for Temperature Damping The default value is 4 8 seconds The range is 0 0 to 38 4 seconds Tips A high damping value makes the process variable appear smoother because the reported value changes slowly A low damping value makes the process variable appear more erratic because the re...

Page 42: ... processes and algorithms that use temperature data from the internal sensor RTD Temperature compensation Temperature compensation adjusts process measurement to compensate for the effect of temperature on the sensor tubes Configure process measurement 36 Micro Motion LNG Series Meters ...

Page 43: ...s Measurement Response Calculation Speed Overview Calculation Speed is used to apply a different algorithm to the calculation of process variables from the raw process data Calculation Speed Special produces faster and noisier response to changes in the process Tip You can use Calculation Speed Special with either setting of Update Rate The parameters control different aspects of flowmeter process...

Page 44: ... default value is 0 seconds The range is 0 to 60 seconds If you set Fault Timeout to 0 fault actions are performed as soon as the alert condition is detected The fault timeout period begins when the transmitter detects an alert condition During the fault timeout period the transmitter continues to report its last valid measurements If the fault timeout period expires while the alert is still activ...

Page 45: ... LED if available changes to red or yellow depending on alert se verity Actions when alert clears Outputs return to normal behavior Digital communications return to normal behavior The status LED if available returns to green and may or may not flash Informa tional Actions when fault is detected The alert is posted to the Alert List The status LED if available changes to red or yellow depending on...

Page 46: ...ault No A030 Incorrect Board Type Fault No A033 Insufficient Right Left Pick off Signal Fault Applies only to flowmeters with the enhanced core processor Yes A102 Drive Overrange Informational Yes A104 Calibration in Progress Informational Can be set to either Informational or Ignore but cannot be set to Fault Yes A105 Slug Flow Informational Yes A107 Power Reset Occurred Informational Normal tran...

Page 47: ...that the sensor index is correct Procedure Enter the cable length unit m in the RTD 1 2 Cable Length field Related information Configure the sensor index 5 3 3 Configure Sensor Serial Number ProLink III Device Tools Configuration Informational Parameters Sensor Overview Sensor Serial Number lets you store the serial number of the sensor component of your flowmeter in transmitter memory This parame...

Page 48: ...s not used in processing and is not required Procedure 1 Obtain your sensor s liner material from the documents shipped with your sensor or from a code in the sensor model number To interpret the model number refer to the product data sheet for your sensor 2 Set Sensor Liner Material to the appropriate option 5 3 6 Configure Sensor Flange Type ProLink III Device Tools Configuration Informational P...

Page 49: ...ory This parameter is not used in processing and is not required Procedure Enter a short message for the transmitter or device Your message can be up to 32 characters long 5 3 9 Configure Date ProLink III Device Tools Configuration Informational Parameters Transmitter Overview Date lets you store a static date not updated by the transmitter in transmitter memory This parameter is not used in proce...

Page 50: ...Configure device options and preferences 44 Micro Motion LNG Series Meters ...

Page 51: ...anced event occurs is ON if the real time value of a user specified process variable moves above HI or below LO a user defined setpoint or in range IN or out of range OUT with respect to two user defined setpoints You can define up to five enhanced events Procedure 1 Select the event that you want to configure 2 Specify Event Type Options Description HI x A The event occurs when the value of the a...

Page 52: ...III None default None Start sensor zero Start Sensor Zero Start stop all totalizers Start Stop All Totalization Reset mass total Reset Mass Total Reset volume total Reset Volume Total Reset gas standard volume total Reset Gas Std Volume Total Reset all totals Reset All Totals 6 2 Configure digital communications The digital communications parameters control how the transmitter will communicate usi...

Page 53: ...Order to match the byte order used by your Modbus host Code Byte order 0 1 2 3 4 1 3 4 1 2 2 2 1 4 3 3 4 3 2 1 See Table 6 2for the bit structure of bytes 1 2 3 and 4 Bit structure of floating point bytes Table 6 2 Byte Bits Definition 1 SEEEEEEE S Sign E Exponent 2 EMMMMMMM E Exponent M Mantissa 3 MMMMMMMM M Mantissa 4 MMMMMMMM M Mantissa 3 Optional Set Additional Communications Response Delay in...

Page 54: ...ion Communications RS 485 Terminals Overview Modbus RS 485 communication parameters control Modbus communication with the transmitter s RS 485 terminals RS 485 terminal parameters include Baud rate Parity Stop bits Procedure 1 Set Baud Rate as appropriate for your network The following baud rates are supported 4800 9600 19200 38400 2 Set Parity as appropriate for your network The following parity ...

Page 55: ...le Upscale Process variable values indicate that the value is great er than the upper sensor limit Totalizers stop incrementing Downscale Downscale Process variable values indicate that the value is lower than the lower sensor limit Totalizers stop incrementing Zero IntZero All 0 Flow rate variables go to the value that represents a flow rate of 0 zero Density is reported as 0 Temperature is repor...

Page 56: ...Integrate the meter with the control system 50 Micro Motion LNG Series Meters ...

Page 57: ...uration using ProLink III 1 Choose Device Tools Configuration Transfer Save or Load Configuration Data 2 In the Configuration groupbox select the configuration data you want to save 3 Click Save then specify a file name and location on your computer 4 Click Start Save The backup file is saved to the specified name and location It is saved as a text file and can be read using any text editor 7 2 En...

Page 58: ...Complete the configuration 52 Micro Motion LNG Series Meters ...

Page 59: ...II Operations maintenance and troubleshooting Chapters covered in this part Transmitter operation Measurement support Troubleshooting Operations maintenance and troubleshooting Configuration and Use Manual 53 ...

Page 60: ...Operations maintenance and troubleshooting 54 Micro Motion LNG Series Meters ...

Page 61: ...igured The status LED is red The A027 Security Breach alert is active When the switch is on The transmitter works under custody transfer secured mode The transmitter cannot be configured Unless there are alarms the status LED is green 8 2 Record the process variables Micro Motion suggests that you make a record of specific process variable measurements including the acceptable range of measurement...

Page 62: ...iables and other data using ProLink III Section 8 3 1 8 3 1 View process variables and other data using ProLink III Monitor process variables diagnostic variables and other data to maintain process quality ProLink III automatically displays process variables diagnostic variables and other data on the main screen Tip ProLink III allows you to choose the process variables that appear on the main scr...

Page 63: ... or the transmitter detects a fault condition You can view active alerts and you can acknowledge alerts Acknowledging alerts is not required View and acknowledge alerts using ProLink III Section 8 5 1 8 5 1 View and acknowledge alerts using ProLink III You can view a list containing all alerts that are active or inactive but unacknowledged From this list you can acknowledge individual alerts or ch...

Page 64: ...alert condition clears Related information Alert data in transmitter memory 8 5 2 Alert data in transmitter memory The transmitter maintains three sets of data for every alert that is posted For each alert occurrence the following three sets of data are maintained in transmitter memory Alert List Alert Statistics Recent Alerts Alert data in transmitter memory Table 8 2 Alert data structure Transmi...

Page 65: ...iple totalizer resets 8 7 Start and stop totalizers and inventories ProLink III Device Tools Totalizer Control Totalizer and Inventories Start All Totals Device Tools Totalizer Control Totalizer and Inventories Stop All Totals Overview When you start a totalizer it tracks process measurement In a typical application its value increases with flow When you stop a totalizer it stops tracking process ...

Page 66: ...Device Tools Totalizer Control Totalizer and Inventories Reset Mass Inventory Device Tools Totalizer Control Totalizer and Inventories Reset Volume Inventory Device Tools Totalizer Control Totalizer and Inventories Reset Gas Inventory Device Tools Totalizer Control Totalizer and Inventories Reset All Inventories Overview When you reset an inventory the transmitter sets its value to 0 It does not m...

Page 67: ...data points low and high and an external measurement for each Tips To prove the meter against a regulatory standard or to correct measurement error use meter validation and meter factors Before performing a field calibration contact Micro Motion to see if there is an alternative In many cases field calibrations have a negative effect on measurement accuracy 9 2 Zero the meter Zeroing the meter est...

Page 68: ...fy that the process fluid is not flashing or condensing and that it does not contain particles that can settle out f Remove or reduce sources of electromechanical noise if appropriate g Observe the drive gain temperature and density readings If they are stable check the Live Zero or Field Verification Zero value If the average value is close to 0 you should not need to zero the meter 2 Choose Devi...

Page 69: ...mponents 9 2 2 Record the zeros ProLink III Device Tools Diagnostics Zero Log Overview Record the zero values from the zero log The zero log stores the last twenty zero values for each sensor including the time stamp maximum minumum temperature maximum minimum density and maximum minimum drive gain Note The maximum and minimum values are the values stored while the meter was calibrating each zero ...

Page 70: ...to calculate the meter factor for volume flow from the meter factor for density See Section 9 3 1 for instructions on this method Obtain a reference device external measurement device for the appropriate process variable Important For good results the reference device must be highly accurate Procedure 1 Determine the meter factor as follows a Use the flowmeter to take a sample measurement b Measur...

Page 71: ... when a volume flow reference is not available but a density reference is available Procedure 1 Calculate the meter factor for density using the standard method see Section 9 3 2 Calculate the meter factor for volume flow from the meter factor for density MeterFactorVolume 1 MeterFactorDensity Note The following equation is mathematically equivalent to the first equation You may use whichever vers...

Page 72: ...ation fluid and flow through the sensor must be at the lowest rate allowed by your application This is usually accomplished by closing the shutoff valve downstream from the sensor then filling the sensor with the appropriate fluid D1 and D2 density calibration require a D1 low density fluid and a D2 high density fluid You may use air and water The calibrations must be performed without interruptio...

Page 73: ...D1 and D2 density calibration using ProLink III Figure 9 1 Measurement support Configuration and Use Manual 67 ...

Page 74: ...Measurement support 68 Micro Motion LNG Series Meters ...

Page 75: ...e view the alert list to identify the alerts then take appropriate action to correct the alert condition Status LED states Table 10 1 Condition LED Blinking parameter LED behavior Normal operation no alert N A Solid green Unacknowledged corrected condition no alert Enabled Flashing green Disabled Solid green Acknowledged low severity alert outputs con tinue to report process data N A Solid yellow ...

Page 76: ...ration parameters Verify that internal wiring is secure and that there are no internal electrical problems Check the wiring between the sensor and the transmitter Contact Micro Motion A005 Mass Flow Rate Overrange The measured flow rate is greater than the maximum flow rate of the sensor ΔT greater than 200 µs If other alerts are present resolve those alert conditions first If the current alert pe...

Page 77: ...tically If other alerts are present resolve those alert conditions first If the current alert persists continue with the recommen ded actions Verify that the tubes are full of process fluid Check the wiring between the sensor and the transmitter Verify that the transmitter is receiving sufficient power If it is not correct the problem and cycle power to the meter If it is this suggests that the tr...

Page 78: ... too much process insta bility during the calibration proce dure This alert will not clear until you cy cle power to the meter Remove or reduce sources of electro mechanical noise e g pumps vibra tion pipe stress cycle power to the meter then retry the procedure A014 Transmitter Failure Many possible causes Ensure that all wiring compartment covers are installed correctly Ensure that all transmitt...

Page 79: ...een switched from secure mode to unsecure mode In unsecured mode the transmitter configuration can be changed Secure the transmitter by setting the CT switch to ON Note that additional procedures may be required to return the device to secured mode A030 Incorrect Board Type The loaded software is not compati ble with the programmed board type Contact Micro Motion A033 Insufficient Pickoff Signal T...

Page 80: ...w tubes are full A104 Calibration in Pro gress A calibration procedure is in proc ess Allow the procedure to complete For zero calibration you may abort the calibration set Zero Time to a lower val ue and restart the calibration A105 Two Phase Flow The line density is outside the user defined two phase flow limits Check for two phase flow A107 Power Reset Occur red The transmitter has been restart...

Page 81: ...ntation Wiring problem Vibration in pipeline at rate close to sensor tube frequency Damping value too low Mounting stress on sensor Verify that the sensor orientation is appro priate for your application refer to the sensor installation manual Check the drive gain and the pickoff volt age If the wiring between the sensor and the transmitter includes a 9 wire segment verify that the 9 wire cable sh...

Page 82: ...als Check for sources of vibration Verify damping configuration Verify that the measurement units are con figured correctly for your application Check for two phase flow Check for radio frequency interference Contact Micro Motion Inaccurate flow rate or batch total Wiring problem Inappropriate measurement unit Incorrect flow calibration factor Incorrect meter factor Incorrect density calibration f...

Page 83: ...g Plugged or coated sensor tube Incorrect density calibration factors Incorrect temperature measurement RTD problem In high frequency meters this can indicate erosion or corrosion In low frequency meters this can indicate tube fouling Ensure that all of the calibration parame ters have been entered correctly See the sensor tag or the calibration sheet for your meter Verify all of the characterizat...

Page 84: ...or is within the temperature speci fication for the sensor there is no prob lem If the temperature measurement is outside the specification contact Micro Motion The temperature of the fluid may be changing rapidly Allow sufficient time for the sensor to equalize with the process flu id The electrical connection between the RTD and the sensor may be damaged This may require replacing the sensor 10 ...

Page 85: ...over removed Reapplying power to the transmitter while the housing cover is removed could cause an explosion 7 Test the voltage at the terminals If there is no power contact Micro Motion customer service 10 7 Check grounding The sensor and the transmitter must be grounded Prerequisites You will need Installation manual for your sensor Installation manual for your transmitter remote mount installat...

Page 86: ...wo Phase Flow High Limit to a higher value or Two Phase Flow Timeout to a higher value 10 10 Check the drive gain Excessive or erratic drive gain may indicate any of a variety of process conditions or sensor problems To know whether your drive gain is excessive or erratic you must collect drive gain data during the problem condition and compare it to drive gain data from a period of normal operati...

Page 87: ...a tion Verify the characterization or calibration parameters Erratic drive gain Possible causes and recommended actions for erratic drive gain Table 10 6 Possible cause Recommended actions Foreign material caught in sen sor tubes Purge the sensor tubes Replace the sensor 10 10 1 Collect drive gain data Drive gain data can be used to diagnose a variety of process and equipment conditions Collect dr...

Page 88: ...sensor is damaged or sensor mag nets may have become demagnetized Replace the sensor 10 11 1 Collect pickoff voltage data Pickoff voltage data can be used to diagnose a variety of process and equipment conditions Collect pickoff voltage data from a period of normal operation and use this data as a baseline for troubleshooting Procedure 1 Navigate to the pickoff voltage data 2 Observe and record da...

Page 89: ...emote core processors Procedure 1 Disconnect power to the transmitter CAUTION If the transmitter is in a hazardous area wait 5 minutes before continuing 2 Unplug the terminal blocks from the terminal board on the core processor 3 Using a digital multimeter DMM check the pickoff coils by placing the DMM leads on the unplugged terminal blocks for each terminal pair See Table 10 9 for a list of the c...

Page 90: ...inals except the red one b Test the red terminal against all other terminals except the brown one c Test the green terminal against all other terminals except the white one d Test the white terminal against all other terminals except the green one e Test the blue terminal against all other terminals except the gray one f Test the gray terminal against all other terminals except the blue one g Test...

Page 91: ...nections Modbus RS 485 8 bit connections Modbus RTU A 1 2 Connect with ProLink III to the service port Prerequisites ProLink III installed and licensed on your PC One of the following RS 232 to RS 485 signal converter USB to RS 485 signal converter An available serial port or USB port Adapters as required for example 9 pin to 25 pin Procedure 1 Attach the signal converter to the serial port or USB...

Page 92: ...sed on your PC ProLink III v3 5 installed and licensed on your PC One of the following RS 232 to RS 485 signal converter USB to RS 485 signal converter An available serial port or USB port Adapters as required for example 9 pin to 25 pin Procedure 1 Attach the signal converter to the serial port or USB port on your PC 2 To connect over the RS 485 network a Attach the leads from the signal converte...

Page 93: ...ddress of the transmitter Ensure that you have specified the correct port on your PC Check the wiring between the PC and the transmitter Increase or decrease resistance For long distance communication or if noise from an external source interferes with the signal install 120 Ω W terminating resistors in parallel with the output at both ends of the communication segment Ensure that there is no conc...

Page 94: ...Using ProLink III with the transmitter 88 Micro Motion LNG Series Meters ...

Page 95: ...eset values are 1 5 nor mal For gas applications Micro Motion recommends a minimum value of 2 56 Flow calibration factor 1 00005 13 Mass flow units kg min Mass flow cutoff Sensor specific value set at factory For most sensors the typical set ting is 0 05 to 0 10 of the sen sor s rated maximum flow rate For some sensors the setting may be higher For some applications such as empty full empty batchi...

Page 96: ...igh limit 5 0 g cm3 0 0 10 0 g cm3 Slug duration 0 0 sec 0 0 60 0 sec Temperature Temperature damping 4 8 sec 0 0 80 sec User entered value is corrected to nearest lower value in list of preset values Temperature units Deg C Temperature calibration factor 1 00000T0 00 00 RTD cable length 3 m 0 350m Enter the correct cable length for more accurate temperature reading Pressure Pressure units PSI Flo...

Page 97: ... seconds 0 0 60 0 sec Modbus address 1 sensor 1 2 sensor 2 1 127 ex cluding 111 Address 1 or any other modified address will always correspond to sensor1 address 2 or any oth er modified address will always correspond to sensor2 Modbus baud rate 9600 4800 to 38400 Modbus parity None None Odd Even Default values and ranges Configuration and Use Manual 91 ...

Page 98: ...Default values and ranges 92 Micro Motion LNG Series Meters ...

Page 99: ...Default values and ranges Configuration and Use Manual 93 ...

Page 100: ...777 8211 F 65 6770 8003 Micro Motion United Kingdom Emerson Automation Solutions Emerson Process Management Limited Horsfield Way Bredbury Industrial Estate Stockport SK6 2SU U K T 44 0870 240 1978 F 44 0800 966 181 Micro Motion Japan Emerson Automation Solutions 1 2 5 Higashi Shinagawa Shinagawa ku Tokyo 140 0002 Japan T 81 3 5769 6803 F 81 3 5769 6844 2017 Micro Motion Inc All rights reserved Th...

Search results

Summary of Contents for Micro Motion LNG Series

Reviews:

Related manuals for Micro Motion LNG Series

Brands by name

Popular brands

Emerson Micro Motion LNG Series, Configuration And Use Manual

Search results

Summary of Contents for Micro Motion LNG Series

Reviews:

Related manuals for Micro Motion LNG Series

Brands by name

Popular brands