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3

Meter repairs

3.1

Precautions prior to repairs

This section includes discussion of the maintenance of Rosemount 3410 Series Ultrasonic
Meters.

For reference, you may download the MeterLink Quick Start Manual from:

www.emerson.com/en-us/catalog/measurement-instrumentation/meterlink

CAUTION

SURFACE TEMPERATURE HAZARD
The meter body and piping may be extremely hot or cold.
Wear appropriate personal protective equipment when coming in contact with the meter.
Failure to comply may result in injury.

CAUTION

TRANSPORTATION HAZARD
When moving the meter, do not insert the forks of a forklift into the bore.
Inserting the forks may cause the meter to become unstable, resulting in injury or damage
to the bore and sealing face.

CAUTION

TRIPPING HAZARD
Clear all obstacles or obstructions from the work area when transporting, installing or
removing the meter.
Failure to clear the work area may cause injury to personnel.

NOTICE

Prior to lifting the unit, refer to the Rosemount Gas Ultrasonic Flow Meter nameplate or
outline dimensional (general arrangement) drawing for the assembled weight.

Maintenance and Troubleshooting Manual

Meter repairs

00809-0600-3104

April 2022

Rosemount Gas Ultrasonic Flow Meters

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Summary of Contents for Rosemount 3410 Series

Page 1: ...Maintenance and Troubleshooting Manual 00809 0600 3104 Rev AA April 2022 Rosemount 3410 Series Gas Ultrasonic Flow Meters Models 3414 3412 and 3411 ...

Page 2: ...equipment These procedures ensure legal compliance with government transportation agencies and help provide a safe working environment for Emerson employees Emerson will not accept your returned equipment if you fail to follow Emerson procedures Return procedures and forms are available on our web support site at Emerson com or by phoning the Emerson Customer Service department Emerson Flow custom...

Page 3: ...allation 54 3 4 T 200 transducer assembly removal and installation 59 3 5 T 200 transducer capsule assembly removal and installation 63 3 6 T 200 transducer housing removal and installation 67 3 7 Transducer cable removal and installation 70 3 8 Replace the meter electronics 75 3 9 Acquisition Module replacement 85 Appendix A Conversion factors 91 A 1 Conversion factors per units of measurement 91...

Page 4: ...Contents Maintenance and Troubleshooting Manual April 2022 00809 0600 3104 4 Emerson com Rosemount ...

Page 5: ...pment when coming in contact with the meter Failure to comply may result in injury CAUTION TRANSPORTATION HAZARD When moving the meter do not insert the forks of a forklift into the bore Inserting the forks may cause the meter to become unstable resulting in injury or damage to the bore and sealing face CAUTION TRIPPING HAZARD Clear all obstacles or obstructions from the work area when transportin...

Page 6: ...cility safety rules Failure to comply could result in temporary or permanent hearing loss 1 2 Field hydrostatic pressure testing procedures Rosemount 3410 Series Ultrasonic Gas Flow Meters may be supplied with T Slot transducer assemblies which must be removed from the meter before hydrostatic pressure testing T Slot transducer assemblies are available on 4 inch and larger meters for Rosemount 341...

Page 7: ... to marks its location Port locations are marked on the transducer cable as well as on cast meter housings 5 Apply a small amount of Nickel antiseize compound P N 3 9960 134 to the threads of the Hydrotest plug from Hydrotest kit and install it into the mount Required kit part numbers are listed below 6 Repeat Step 3 through Step 5 for the other transducer s being careful to note the location of e...

Page 8: ...er while the line is pressurized 2 Run the field hydrostatic test 1 3 Routine maintenance Routine maintenance operations requires adherence to all applicable regulations and laws and safety training for personnel to perform the maintenance operations Review your organization s best practices procedures before performing routine maintenance Maintenance Maintenance and Troubleshooting Manual April 2...

Page 9: ... collected after an upset in the system In establishing a baseline to be used for the trending of the meter diagnostics it is very helpful if a set of log files are collected immediately after the meter has been installed in the field Preferably collect the log files at several velocities within the operating range of the meter This helps establish that the flow profile is relatively constant thro...

Page 10: ...and noise level may show a shift over time which can be useful in detecting changes in the meter and the installation Maintenance logs or Trend files to be trended must all have matching column headings This means the logs must be in the same units i e U S Customary or Metric must have the same pressure type i e gage or absolute and must have the same time base 1 second 1 minute 1 hour 1 day If no...

Page 11: ...ow Meter with flow conditioner for unidirectional flow Figure 1 5 3410 Series Gas Ultrasonic Flow Meter with flow conditioner for bidirectional flow Straightening vanes or flow profilers must be removed during pipeline cleaning maintenance operations pigging operation If the meter run is pigged with a flow conditioner in line pressure may build up and cause the pipes and flanges to burst and sever...

Page 12: ...ced for liquids leaking It may be audible for gasses leaking Ice may also form at a point of a gas leak 2 Movement of components that should be rigid 3 Excessive noise due to vibration could be sign of a loose component Inspection should be more frequent in systems with a large amount of vibration Maintenance Maintenance and Troubleshooting Manual April 2022 00809 0600 3104 12 Emerson com Rosemoun...

Page 13: ...ter Status LED is red an active alarm exists that requires you to take corrective action Click the Check Status button to display the Status Summary screen The alarms are shown with the primary causes listed first Click the question mark next to the alarm to display a help topic related to the alarm and recommended actions to resolve the issue Figure 2 2 Status summary Maintenance and Troubleshoot...

Page 14: ... Summary A Active alarm conditions from Meter Monitor page B Status summary page with alarm examples Following is a list and a brief description of the types of alarms System Power Loss Field I O Validity Comms Check Status 2 1 2 System alarm The System alarm indicates a failure in the hardware that should be addressed by a service technician This includes memory checksum errors and communication ...

Page 15: ...larm Click the Check Status button for more details on specific alarms The field is grayed out if the Rosemount 3410 Series Ultrasonic Gas Flow Meter does not support this alarm 2 1 5 Validity alarm This alarm indicates that the meter may not be measuring accurately Click Check Status to see a description of which validity alarms are active The validity alarms QMeter and QFlow indicate an issue wi...

Page 16: ...Program Download procedure to install the firmware Cycle power to the meter Replace the Acquisition Module If the Acquisition Module cannot be reprogrammed collect a complete Archive log and contact your local area Emerson Flow service representative Acquisition Module is not compatible with firmware Check Acquisition Module is compatible with Model configured in meter i e 3414 4 path or 3418 8 pa...

Page 17: ...the transformer module that lead to the electronics If the value is over 2 ohms replace the transformer module Measure the resistance across the two pins on the transformer module that lead to the transducer If the value is not between 30 and 40 ohms for the T 21 and T 41 transformer module replace the transformer module If the value is not between 50 and 75 ohms for the T 22 transformer module re...

Page 18: ... you are connecting for the first time refer to the 3410 Series Installation Manual in Wiring and inputs outputs for instructions on initial communication via Ethernet setup Enable the DHCP switch on the CPU Module Verify that the PC has received an IP address from the meter as follows Bring up DOS prompt window Start Run type cmd In the DOS prompt window type ipconfig If you get the following IP ...

Page 19: ..._log_file in the Temp data folder The path of the Temp data folder is shown in the MeterLink About dialog A blocked FTP port will generally not prevent a connection to the meter but will prevent log collections and program downloads A blocked FTP port could prevent a connection in the event the meter is running a newer version of firmware for which MeterLink does not currently have a database conf...

Page 20: ...ltiple meters via Ethernet when they are on the same LAN Configure each meter with a unique user specified IP address following the initial communication quick start instructions the 3414 Installation manual Contact your IT department for valid IP addresses for your LAN and Gateway addresses Disable the DHCP server Connect to multiple meters via Ethernet when they are on the same hub but not conne...

Page 21: ...er has performed a Cold Start Unless the Cold Start occurred after upgrading firmware replace the CPU board If the cold start occurred after a firmware upgrade fully re configure the meter from a previously saved configuration using the Tools Edit Compare Configuration in MeterLink Electronics Temperature is Out of Nominal Range Temperature of the internal electronics is out of nominal operating r...

Page 22: ...st pressure of process fluid to within alarm limits If using an analog pressure device and input reading is 0 check if IsAI1Avail is equal to 1 in the Meter Information dialog in MeterLink If it is not 1 either the I O Board has been removed or is damaged Reinstall or replace the board if this value is 0 If using an analog pressure device verify that the pressure sensor is working properly If usin...

Page 23: ...ature of process fluid to within alarm limits If using an analog temperature device and input reading is 0 check if IsAI1Avail is equal to 1 in the Meter Information dialog in MeterLink If it is not 1 either the I O Board has been removed or is damaged Reinstall or replace the board if this value is 0 If using an analog temperature device verify that the temperature sensor is working properly If u...

Page 24: ...l be prompted to Attempt FTP only connection Click Yes and if successful theMeterLink caption displays Connected to meter name Go to the Tools pull down menu and select Program Download to attempt the firmware upgrade again If the firmware upgrade is successful the meter should start working as normally as the meter s configuration is not normally lost If the configuration is lost use MeterLink To...

Page 25: ...moved for a period of time or the meter restarted itself such as after a firmware upgrade The Audit log in the meter indicates the power fail time If this was an unexpected restart of the meter verify the integrity of the power to the meter and make sure that the voltage level is the in the range of 11 36 VDC at the meter If this was a known power fail or restart of the meter just acknowledge this...

Page 26: ...direction of flow measurement velocity rate units of measurement uncorrected or corrected flow if applicable for your meter and a bar graph for a visual comparison between the velocities for each chord This is the default view displayed when you select Meter Monitor from the toolbar Figure 2 4 Meter Monitor Summary view Run MeterLink and open the Meter Monitor Detailed view to perform a diagnostic...

Page 27: ...he signal to noise ratio for each chord direction Meter Status Alarms provides a visual indication of the meter s status Gas Comp this dialog shows the gas composition that can be used by the AGA8 or AGA10 gas calculations Baseline this dialog shows the meter s flow characteristics in comparison to limits defined for the Continuous Flow Analysis features This dialog is only available for four path...

Page 28: ...e alarms Meter Status LED is green if there are no active alarms This indicates the meter is measuring flow and operating within the calibrated parameters Meter Status LED is red This indicates an active alarm Resolve and acknowledge active alarms as displayed on the Status Summary page Click the Help button beside the alarm description to display information about the alarm and recommended action...

Page 29: ...el values with the values in the Maintenance log Inspection report from the meter flow calibration Check chord average signal amplitudes with the meter base line values in the Maintenance log Inspection report The meter may not be in measurement mode or there are too few operating chords If a chord is hard failed the Check Status LED will change from green to red The issue may be the transducer pa...

Page 30: ...volume from the Field Setup Wizard General Page Meter Monitor Detailed view Monitor Chart Selection list Speed of Sound Compare Speed of Sound deviation from measured SOS relative to the average SOS Check the chord s SOS Check and correct geometry configuration pipe diameter distance between the transducers LA and delay time If present resolve transducer issues failed transducer cabling or debris ...

Page 31: ...ut of range Systems voltages are valid if 1 0V 1 2V 2 5V 3 3V or the Acquisition Module valid voltages are 1 2V 2 5V or 3 3V Replace the CPU Module if one or more of the System Voltages is out of range Replace the Acquisition Module if one or more of the voltages is out of range MeterLink Tools Menu Frequency output Run the Frequency Outputs test If the output reads zero you may require a pull up ...

Page 32: ...ital Outputs test Digital Output Content is in relation to frequency validity and flow direction configuration and polarity Meter Electronics Acquisition Module communications error Check firmware revision and upgrade if necessary using MeterLink Tools Program Download Check for 5V between pins 1 and 2 on I S Barrier cable Troubleshooting Maintenance and Troubleshooting Manual April 2022 00809 060...

Page 33: ...gured correctly to measure flow Unless the cold start occurred after upgrading firmware you may need to replace the CPU Module If the Cold Start occurred after a firmware upgrade you must reconfigure the meter from a previously saved configuration file using the Edit Compare Configuration screen Then clear the latched alarm on the Status Summary page MeterLink Logs Reports Menu Power failure If th...

Page 34: ...e from the MeterLink Monitor Page or using AMS under Service Tools Path performance Remove the transducer and clean the transducer face Transducer removal procedure Security seals Endcap seals Endcaps latches Transmitter Electronics Enclosure Base Enclosure Shroud seals Only authorized personnel may remove security seals Follow your standard operating procedure to report seals that have been tampe...

Page 35: ...using Windows 7 Windows 8 1 or Windows 10 ensure that you do not have more than one modem driver installed to the same COM port Typically this will only be necessary if you use one COM port to talk direct serial communications and use the same COM port to connect to an external modem This is an apparent limitation in Microsoft s Dial up Networking If more than one modem driver is installed for a p...

Page 36: ...iring and configuring the meter for the various communication options refer to the Rosemount 3410 Series Gas Ultrasonic Flow Meters Installation manual Troubleshoot maintenance log files and trend files Files do not appear in workbook Maintenance Log files and Trend files that exist on the PC do not appear in the Microsoft Excel workbooks tree under Trend Maintenance Logs This is most likely cause...

Page 37: ...the Windows default printer to the selected override printer when it starts and will set the Windows default printer back to its original printer when it closes 2 3 3 Maintenance logs or trend files are not created When using Excel 2007 or later some of the worksheets in the Maintenance Logs or Trend files are not created If the Inspection sheet of the Maintenance Log file or the Charts sheet of a...

Page 38: ...your selections Figure 2 7 Excel 2007 Trusted Access Setting a To enable Excel 2007 to work with MeterLink customize the Ribbon to include the Developer tab Figure 2 8 Excel 2007 Tools Menu 4 Select Macro Security to access the Trust Center Troubleshooting Maintenance and Troubleshooting Manual April 2022 00809 0600 3104 38 Emerson com Rosemount ...

Page 39: ...cros not recommended potentially dangerous code can run radio button 6 Place a check mark in Trust access to the VBA project object model 7 Click OK to apply the changes and close the Trust Center dialog Maintenance and Troubleshooting Manual Troubleshooting 00809 0600 3104 April 2022 Rosemount Gas Ultrasonic Flow Meters 39 ...

Page 40: ...Troubleshooting Maintenance and Troubleshooting Manual April 2022 00809 0600 3104 40 Emerson com Rosemount ...

Page 41: ... CAUTION TRANSPORTATION HAZARD When moving the meter do not insert the forks of a forklift into the bore Inserting the forks may cause the meter to become unstable resulting in injury or damage to the bore and sealing face CAUTION TRIPPING HAZARD Clear all obstacles or obstructions from the work area when transporting installing or removing the meter Failure to clear the work area may cause injury...

Page 42: ...ter must be fully depressurized and drained before attempting to remove the T 200 transducer assembly If gas or fluid begins to leak from the T 200 transducer stalk assembly stop immediately and reinstall T 200 stalk assembly Failure to comply could cause serious injury or equipment damage A Transducer holder CAUTION ESCAPING GASES OR FLUIDS HAZARD The purchaser of the meter is responsible for the...

Page 43: ...SHING HAZARD During meter installation or removal always place the unit on a stable platform or surface that supports its assembled weight Failure to comply could allow the meter to roll resulting in serious injury or equipment damage For basic maintenance refer to Field hydrostatic pressure testing procedures 3 2 T Slot transducer removal and installation The T Slot transducer assembly offers imp...

Page 44: ...l Mounts Inconel Holders FKM O ring 1T 21 transducers use W 01 transformers 2T 22 transducers use W 02 transformers 3 2 1 T Slot transducer removal with extractor tool To replace transducers under pressure refer to Ultrasonic Split Clamp Extractor Tool Operation Manual 00809 0200 3417 NOTICE To access the product datasheet from the Rosemount products page above link select the Rosemount Gas Ultras...

Page 45: ...s venting the line pressure prior to removing the transducer s Before removing and installing transducer s connect to the meter using MeterLink and collect and save a Maintenance Log Note The following instructions are for transducer removal and installation without the use of an extractor tool It is recommended that one work on one transducer assembly at a time to reduce the possibility of improp...

Page 46: ...ti Seize 16 oz Brush Top P N 77164 Molykote 111 Shop supplies Shop rags Adhesive stickers for the cable nuts Sharpie Fine Point Permanent Marker Black Series 30000 to label transducers A1 A2 B1 B2 C1 C2 D1 and D2 for SeniorSonic meters A1 A2 B1 and B2 for JuniorSonic meters Liquid leak detection fluid customer supplied item Procedure 1 Blow the line down according to the site standard operating pr...

Page 47: ...P N 1 360 01 978 D Transformer assembly T 21 W 01 P N 1 360 03 090 or T 22 W 02 P N 1 360 03 110 E Transducer holder F Transducer holder O rings G Set screw holes end of transducer holder H Transducer stalk optional I Transducer assembly J Mount and backup O ring 6 Loosen the T Slot transducer holder assembly with a 1 socket Carefully remove the T Slot transducer assembly 7 Loosen the three Allen ...

Page 48: ... of Molykote 111 to the female contacts on the transducer 3 Install the transducer assembly into the transducer holder or into the stalk if required The parts are keyed and can only be assembled one way As the transducers are installed into the holder or stalk assembly they must be labeled with a marker for future reference i e transducer 1 would be A 1 and transducer 2 would be A 2 4 Use a 1 16 h...

Page 49: ...ransducer by dropping it 6 Apply a small amount of nickel anti seize N A S compound P N 2 9 9960 134 to the outer threads of the transducer holder see Figure 3 4 7 Carefully install the transducer holder assembly into the transducer mount Make sure the threads of the holder and mount are correctly aligned Use a 1 socket and screw the transducer assembly into the mount Tighten to securely seat the ...

Page 50: ...he transformer assembly Ensure the retainer threads are aligned correctly and hand tighten Use a 1 wrench and turn clockwise until the transformer assembly is fully seated in the transducer holder Note Do not over tighten the retainer 10 Reconnect the transducer chordset to the transducer holder or the retainer if installing T 21 or T 22 transducers The internal connector of the transducer chordse...

Page 51: ...3 Pull the transformer assembly from the transducer holder assembly 4 Apply a small amount of Molykote 111 to the O rings on the replacement transformer assembly 5 Plug the replacement transformer assembly into the transducer holder assembly The transformer is keyed and can only be installed one way Note T 21 transducers use W 01 transformers and T 22 transducers use W 02 transformers 6 Place the ...

Page 52: ...he lengths of the stalk assemblies transducer holders and mounts are etched on the individual components The length of the meter body is found on the original calibration sheet supplied with the meter Determining the L value The value L is determined by adding the length of the meter body to the lengths of the two mounts and subtracting the lengths of the transducer holders stalk assemblies and tr...

Page 53: ... lengths as shown in Equation 3 1 The transducer lengths are etched on the transducers Likewise the lengths of the mounts stalk assemblies and transducer holders are also etched on the individual components The length of the meter body is found on the original calibration sheet supplied with the meter Maintenance and Troubleshooting Manual Meter repairs 00809 0600 3104 April 2022 Rosemount Gas Ult...

Page 54: ...l and installation WARNING CONTENTS MAY BE UNDER PRESSURE When the meter is under pressure DO NOT attempt to remove or adjust the transducer holder of the T Slot transducer assembly or loosen the screws holding the T 200 transducer assembly Attempting to do so could release pressurize gases resulting in serious injury or equipment damage WARNING CONTENTS MAY BE HAZARDOUS The meter must be fully de...

Page 55: ...ucer holders the following steps detail how to safely remove and reinstall them Before removing and installing the transducer holder connect to the meter using MeterLink and collect and save a Maintenance Log Procedure 1 Blow the line down according to the site standard operating procedures 2 Ensure that the line pressure is down to atmospheric pressure prior to disassembly 3 Disconnect the transd...

Page 56: ...ducer holder length identification 8 Loosen the three Allen setscrews with a 1 16 hex driver securing the transducer assembly and stalk if installed Carefully remove the transducer by pulling it from the T Slot transducer holder or stalk if installed without rotating 9 Clean the holder with a dry cloth 3 3 3 Install the transducer holder with the extractor tool To replace transducer holder while u...

Page 57: ...sducer assembly 3 Replace the O rings and backup rings on the transducer holder Make sure the contoured side of the backup ring faces away the end of the transducer holder that attaches to the transducer It is highly recommended that the O rings be replaced when the transducer is removed from the holder stalk 4 Use a 1 16 hex driver to equally tighten the three Allen set screws on the transducer h...

Page 58: ...r chordset is keyed and will only go on one way Hand tighten the transducer cable nut to secure the chordset onto the transducer holder Figure 3 9 T Slot transducer holder removal A Base enclosure transducer cable glands B Cable ties two locations C 3410 Series Ultrasonic Meter transducer port D Transducer mount and transducer chordset 11 Repeat Step 1 through Step 10 for all transducer holders to...

Page 59: ...rify the meter is optimally performing Save the meter configuration file If communicating with the meter via Modbus or HART manually update the parameters see Modifying the calibration parameters for T Slot transducers 3 4 T 200 transducer assembly removal and installation T 200 transducer assembly see Figure 3 10 offers improved transducer alignment and superior acoustic isolation between the tra...

Page 60: ...lder 3 4 1 T 200 transducer assembly removal This procedure is for removing a T 200 transducer assembly from a meter body Figure 3 11 T 200 transducer assembly installed in a meter body A Meter housing B Captive screw C T 200 transducer stalk assembly D Cable nut E Chordset Procedure 1 Blow the line down according to the site standard operating procedures 2 Ensure that the line pressure is down to...

Page 61: ...ck the label marked on the stalk or the serial number on the stalk assembly to match the intended port number on the meter body 2 Record the lengths of T 200 transducer housing spacer and stalk that come with the transducer assembly calibration sheet 3 Make sure the O ring and backup ring are clean and properly installed Apply a light coat of D C 111 to the O ring 4 Carefully insert the transducer...

Page 62: ...er data points AvgDlyA AvgDlyD DltDlyA DltDlyD 2 Update the chord lengths L of the transducers The lengths of transducer assembly and individual components including housing spacer and stalk are included on the calibration sheet and are etched on the transducer housings spacers and stalks The length of the meter body is found on the original calibration sheet supplied with the meter The value L is...

Page 63: ...ter body The line can be pressurized or at atmospheric pressure Procedure 1 Disconnect transducer cabling and chordset from the T 200 transducer assembly by turning the cable nut counter clock wise 2 Disconnect the transducer cable nut Pull the chordset from the transducer assembly Note Do not twist the chordset as you disconnect it from the transducer assembly 3 Remove the transducer retainer fro...

Page 64: ...a transducer assembly while it is installed in a meter body Procedure 1 Ensure that the transducer stalk retainer and capsule assembly are clean and free of debris 2 Record the serial number of the transducer capsule assembly to be installed and make sure it is correct for the intended transducer assembly Table 3 3 T 200 transducer stalk assembly configuration and capsule setting Stalk assembly co...

Page 65: ...ure that the setting of the transducer capsule assembly matches the stalk assembly configuration see Table 3 3 The setting of a transducer capsule assembly is indicated by the number next to the slot where the tap is located see Figure 3 13 i e 1 2 8 The stalk assembly configuration is labeled on the Maintenance and Troubleshooting Manual Meter repairs 00809 0600 3104 April 2022 Rosemount Gas Ultr...

Page 66: ...face of Kapton tape using the tip of the plastic bottle for the coupling fluid Note Do not press the Kapton tape while spreading the coupling fluid 6 Wait for 30 60 seconds to let the coupling fluid spread more evenly on the surface 7 Insert the transducer capsule assembly into the transducer stalk while aligning the anti rotation pin on the capsule with the slot on the inner surface of the stalk ...

Page 67: ...ng from a T 200 transducer assembly and installing a transducer housing on a transducer stalk assembly If the transducer assembly is installed in a meter body follow the procedure in T 200 transducer assembly removal to remove the transducer assembly from the meter body first After installing or replacing a transducer housing follow T 200 transducer assembly installation to install the transducer ...

Page 68: ...up 3 Remove the transducer retainer from the stalk Do not drop the transducer capsule 4 Carefully pull the transducer capsule out of the stalk and place it in a safe place 5 Hold the transducer stalk vertically with the transducer housing facing up 6 Place the housing removal tool on the top of the transducer housing 7 Press the tool down while using a flat head screw driver to release the retaini...

Page 69: ...re that the setting of the transducer capsule matches the stalk assembly configuration see Table 3 3 The setting of a transducer capsule is indicated by the number next to the slot where the tap is located see Figure 3 13 i e 1 2 8 The stalk assembly configuration is labeled on the stalk see Figure 3 14 next to its serial number i e 01 02 13 If adjustment is needed a Use one hand to hold the top p...

Page 70: ...nt 3410 Series Ultrasonic Gas Flow Meters have blue transducer cables and a transducer cable nut that threads directly into the back of the transducer holder The cables use plastic glands that are installed on the meter s Base Enclosure Note Make a note of the exiting cabling path layout to allow proper tie wrap configuration later in this procedure Figure 3 17 Rosemount 3410 Series Ultrasonic Gas...

Page 71: ...ng a 6mm Allen wrench 6 Lift the Transmitter Electronics Enclosure from the Base Enclosure It may be necessary to remove the ground lug wire and loosen the conduit connections prior to removal 7 Carefully prop the Transmitter Electronics Enclosure to the side 8 Use a flat blade screw driver and disconnect the transducer wiring terminal block from the Acquisition Module see Figure 3 18 9 Place the ...

Page 72: ...clamp on the bare wires and not on the wire insulation Leave the connector plugged into the Acquisition Module while terminating the individual wires 7 Once the transducers are wired correctly tighten the cable gland so that the transducer cable is held securely in place Pull the cable back through the gland to remove the slack and configure the cable to follow the same path of the existing cable ...

Page 73: ...in the Base Enclosure 17 Install the two hex head bolts with a 6 mm Allen wrench to secure the Transmitter Electronics Enclosure to the Base Enclosure 18 Reattach the external ground wire to the ground lug reconnect the conduit and power the meter 19 If required install the security seal wire into and through one of the two holes in the end cap Choose holes that minimize counterclockwise rotation ...

Page 74: ...0 09 inch 2 3mm on the Transducer Cable Connector to the Transducer Cable Nut by rotating the Transducer Cable Nut clockwise compressing the seal on the Transducer Cable Connector see Figure 3 21 Figure 3 21 Transducer cable nut chordset and security seal A Transducer cable nut B Transducer cable chordset C Security wire seal Meter repairs Maintenance and Troubleshooting Manual April 2022 00809 06...

Page 75: ...llowing CPU Module assembly P N 1 360 03 010 Optional I O Module RS 232 or RS 485 I S Barrier Board P N 360 03 004 Power Supply P N 360 03 003 Backplane Board P N 360 03 007 The Rosemount 3410 Series Gas Ultrasonic Flow Meter Base Enclosure consists of the following Acquisition Module P N 1 360 03 008 Acquisition Cable P N 360 01 595 Should the Rosemount 3410 Series Ultrasonic Gas Flow Meter requi...

Page 76: ...smitter Electronics Enclosure see Figure 3 17 loosen the end cap security latches using a 3 mm Allen wrench see Figure 3 18 and remove both end caps from the Transmitter Electronics Enclosure 3 If replacing the CPU Module terminal end of the enclosure or the Optional I O Module use a 6 mm flat blade screw driver and disconnect the CPU Module terminal blocks or the optional I O Module terminal bloc...

Page 77: ...rd E Fuse F Internal chassis ground Figure 3 24 CPU module Type 2 and Type 4 A CPU Module Type 2 side label B CPU Module Type 4 side label 4 Grasp the outer ends of the module you want to replace and pull it out of the enclosure Maintenance and Troubleshooting Manual Meter repairs 00809 0600 3104 April 2022 Rosemount Gas Ultrasonic Flow Meters 77 ...

Page 78: ...ecurity wire seals 8 Adjust the security wire removing all slack and thread into the lead seal 9 Cut wire ends to remove excess wire 10 If replacing other electronics or the fuse continue with Replace the Fuse Backplane replacement I S Barrier Board replacement or Power Supply Board replacement and Acquisition Module replacement before replacing the end caps and sealing the enclosure 11 If you enc...

Page 79: ...ackplane replacement Procedure 1 If replacing the Backplane board remove power to the meter 2 Disconnect the Transmitter Electronics Enclosure security seals loosen the end cap security latches 3mm Allen wrench required and remove both end caps see Figure 3 25 3 Remove the CPU Module and the Optional I O Module if installed See Figure 3 23 for board locations and associated terminal blocks 4 Use a...

Page 80: ...ach the Acquisition Cable terminal block to the new Backplane Board and plug the Power Supply Board and I S Barrier board into the Backplane board 9 Insert the Backplane with the Power Supply and I S Barrier Boards attached to the Backplane into the enclosure 10 Fully seat the CPU Module and Optional I O Module onto the Backplane board 11 Install the four Phillips head screws to secure the Backpla...

Page 81: ...his manual I S Barrier Board replacement Procedure 1 If replacing the I S Barrier board remove power to the meter 2 Disconnect the Transmitter Electronics Enclosure security seals loosen the end cap security latches with a 3mm Allen wrench and remove both end caps see Figure 3 19 3 Use a 3 mm flat head screw driver and remove the terminal blocks from the Power Supply board the CPU Module and the O...

Page 82: ... the enclosure standoffs with the four Phillips head screws If the Local Display Module is installed on the Backplane use a flat blade screw driver and install the four flat head screws into the enclosure standoffs 11 Reinstall the J7 terminal block if removed on the Backplane board Re install the CPU Module Optional I O Module if installed and the Power Supply 12 Recheck the connections wiring an...

Page 83: ...front cover of this manual Power Supply Board replacement Procedure 1 If replacing the Power Supply board remove power to the meter 2 Disconnect the Transmitter Electronics Enclosure security seals loosen the end cap security latches with a 3mm Allen wrench and remove both end caps see Figure 3 25 3 Use a flat head screw driver and remove the terminal blocks from the Power Supply board the CPU Mod...

Page 84: ...board and the Power Supply Board into the enclosure and fully seat the CPU Module and Optional I O Module 8 Attach the Backplane to the enclosure standoffs with the four Phillips head screws If the Local Display Module is installed on the Backplane use a flat blade screw driver and install the four flat head screws into the enclosure standoffs 9 Use a flat blade screw driver and install the termin...

Page 85: ...front cover of this manual 3 9 Acquisition Module replacement WARNING CRUSHING HAZARD During meter installation or removal always place the unit on a stable platform or surface that supports its assembled weight Failure to comply could allow the meter to roll resulting in serious injury or equipment damage Procedure 1 Remove power to the meter 2 If the installation has rigid conduit use a medium s...

Page 86: ... 31 Transmitter Electronics Enclosure and Base Enclosure security seal removal A Transmitter electronics enclosure B Base enclosure bolts and security seals 4 Use a 6 mm Allen wrench and remove the two hex head bolts securing the Transmitter Electronics Enclosure to the Base Enclosure Meter repairs Maintenance and Troubleshooting Manual April 2022 00809 0600 3104 86 Emerson com Rosemount ...

Page 87: ...ase enclosure 5 Use a 3 mm flat head screw driver and disconnect the Acquisition cable terminal block and the transducer wire terminal blocks from the Acquisition Module inside of the Base enclosure Maintenance and Troubleshooting Manual Meter repairs 00809 0600 3104 April 2022 Rosemount Gas Ultrasonic Flow Meters 87 ...

Page 88: ...cquisition Module 3 mm flat head screw driver required for the corresponding chord 3414 four path meters A1 A2 B1 B2 C1 C2 D1 and D2 3412 two path meters A1 A2 B1 B2 or 3411 single path meters A1 and A2 Ensure the transducer wires have good contact with the terminal block and the terminal block screws are tight 9 When you have completed attaching the Transducer wire terminal blocks and the Acquisi...

Page 89: ...closure cover B Security wire seals optional 13 Position the wire to prevent counterclockwise rotation of the screws when the seal wire is taut 14 Feed the security wire beneath the Transmitter Electronics Enclosure and through the adjacent socket head screw Twist the wire removing all slack and seal Maintenance and Troubleshooting Manual Meter repairs 00809 0600 3104 April 2022 Rosemount Gas Ultr...

Page 90: ... security latch D Base Enclosure 15 Cut wire ends to remove excess wire 16 Apply conduit sealing compound according to manufacturer s recommendations 17 Apply power to the meter This completes the Acquisition Module replacement procedure Meter repairs Maintenance and Troubleshooting Manual April 2022 00809 0600 3104 90 Emerson com Rosemount ...

Page 91: ...sion factors Unit of measurement F 32 x 5 9 C C 273 15 K 1 K C 5 9 C F 10 6 MPa Pa 0 006894757 MPa psi 0 1 MPa bar 0 101325 MPa atm 0 000133322 MPa mmHg 0 3048 m ft 0 0254 m in 103 dm3 m3 10 6 m3 cc m3 cm3 0 3048 3 m3 ft3 0 0254 3 m3 in3 3600 s h 86400 s day 103 g kg 0 45359237 kg lbm 231 in3 gal 42 gal bbl barrel 0 0037854 gal m3 6 289811 bbl m3 10 3 Pa s cPoise 1 488 Pa s lb ft s Maintenance and...

Page 92: ...FreqQFullScale frequency full scale volumetric flow rate volume time unit Freq1FullScaleVolFlowRate and Freq2FullScaleVolFlowRate MaxFreq maximum frequency Hz pulses time unit Freq1MaxFrequency and Freq2MaxFrequency TimeUnit time conversion factor depends on the VolFlowRate Time Unit data point volume second 1 s s volume minute 60 s m volume hour 3600 s h volume day 86400 s d Volume where the volu...

Page 93: ...appendix contains the following engineering drawing s for the ultrasonic meter DMC 005324 Rosemount 3410 Series Gas Ultrasonic Flow Meter System Wiring Diagram Maintenance and Troubleshooting Manual Engineering drawings 00809 0600 3104 April 2022 Rosemount Gas Ultrasonic Flow Meters 93 ...

Page 94: ...Engineering drawings Maintenance and Troubleshooting Manual April 2022 00809 0600 3104 94 Emerson com Rosemount ...

Page 95: ...Maintenance and Troubleshooting Manual Engineering drawings 00809 0600 3104 April 2022 Rosemount Gas Ultrasonic Flow Meters 95 ...

Page 96: ...erson com 2022 Emerson All rights reserved Unauthorized duplication in whole or part is prohibited Printed in the USA The Emerson logo is a trademark and service mark of Emerson Electric Co All other trademarks are the property of their respective companies ...

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