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Baker Hughes Panametrics Sentinel LCT8 User Manual

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Summary of Contents for Baker Hughes Panametrics Sentinel LCT8

  • Page 1 Sentinel™ LCT8 User’s manual...
  • Page 3 Sentinel™ LCT8 High accuracy ultrasonic liquid flow meter for custody transfer User’s manual 910-314 Rev. A October 2017...
  • Page 4 [no content intended for this page - proceed to next page]...

  • Page 5: Table Of Contents

    Contents Product registration ................. . ix Services .
  • Page 6 2.6 Operation ..................15 2.6.1 Startup .
  • Page 7 Chapter 4. Maintenance ............. . . 75 Software .
  • Page 8 6.3 Meter body specifications ..............109 6.3.1 Meter body materials .

  • Page 9: Product Registration

    Product registration Typographical conventions Thank you for purchasing your Sentinel™ LCT8 from NOTE: These paragraphs provide information that provides a Panametrics. Please register your product at https://info. deeper understanding of the situation, but is not essential to bakerhughes.com/New-Product-Registration-LP.html the proper completion of the instructions. product support such as the latest software/firmware upgrades, product information and special promotions.

  • Page 10: Auxiliary Equipment

    Auxiliary equipment Environmental compliance Local safety standards RoHS The Sentinel™ LCT8 fully complies with RoHS regulations The user must make sure that he operates all auxiliary equipment in accordance with local codes, standards, (Directive 2011/65/EU). regulations, or laws applicable to safety. Waste Electrical and Electronic Equipment (WEEE) Directive Working area Panametrics is an active participant in Europe’s Waste...

  • Page 11: Chapter 1. General Information

    Chapter 1. General information Theory of operation The Sentinel LCT8 measurement system uses ultrasonic transit-time technology. A brief description of transit-time theory follows. For more information about the theory, and the use of Panametrics ultrasonic flow meters for measuring flow, please refer to Ultrasonic measurements for process control by L.C.

  • Page 12: Multi-Path Design

    Multi-path design Unpacking The Sentinel LCT8 is typically packaged in a wooden crate, Multi-path ultrasonic flow meters are designed with more than one pair of transducers to interrogate the flow field the size of which will depend on the size of product ordered. in different locations and more accurately determine the It will be secured by several 2x4 wood blocks to prevent actual flow rate.

  • Page 13: Meter Components

    Meter components Figure 1 on page 3 shows a Sentinel LCT8 system, with items 1-8 as described in Table 1 below. Table 1: Sentinel LCT8 system components Material (ASTM) Component Meter body with flanges SA216 Gr. WCB (carbon steel) SA352 Gr. LCB (low temp carbon steel) SA351 Gr.

  • Page 14: Marking And Labeling

    Marking and Labeling 1.7.1 Tag plates There are four tag plates affixed to the Sentinel LCT8 which panametrics.com provide details about the system. Three are located on the vessel and one is located on the transmitter. Their locations are shown in Figure 2 below. Transmitter tag plate Non-PED Certified (Ref.

  • Page 15: Chapter 2. Installation

    Chapter 2. Installation Installation guidelines This section provides general information with respect to the mechanical and electrical installation, and should be thoroughly reviewed before the system is installed. To ensure safe and reliable operation of the Sentinel LCT8, the system must be installed in accordance with the guidelines established by Panametrics, as explained in this chapter.

  • Page 16: Preparing For Installation

    2.3 Preparing for Installation 2.3.1 Installation precautions 2.3.2 Lifting Instructions Any questions with respect to the installation should be WARNING! addressed prior to beginning the installation. Failure to install the Sentinel LCT8 correctly can increase To avoid possible strain, refer to the Sentinel measurement uncertainty.

  • Page 17: Mechanical Installation

    2.4 Mechanical installation 2.4.1.3 Flow direction - straight pipe run differences For both uni-directional and bi-directional flow, the user Being mindful of the Installation precautions on page 6, must provide the minimum straight pipe runs upstream and complete the following steps: downstream from the flowcell, as shown in Figure 11 below.

  • Page 18: Fluid Requirements

    2.4.2 Fluid requirements 2.4.3 Guidelines for installing pipe insulation Gas - To avoid measurement errors, suitable measures If pipe insulation is required: should be taken to make sure the line is full and the gas • Install all insulation materials and accessories in in the line is kept below 1%.

  • Page 19: Making The Electrical Connections

    2.5 Making the electrical connections 2.5.1 Removing the enclosure covers This section contains instructions for making the necessary electrical connections to the flow transmitter (see Figure 12 below). The wiring between the transmitter and the WARNING! transducers has been installed at the factory, and no further Always disconnect the line power from connections are required on this portion of the wiring.

  • Page 20: Cable Tie-Down Posts

    NOTE: For compliance with the North American and European low voltage directive, this unit requires an external power disconnect device such as a switch or circuit breaker. The disconnect device must be marked as such, clearly visible, directly accessible, and located within 1.8 m (6 ft) of the unit.

  • Page 21: Wiring The Serial Port

    2.5.4 Wiring the serial port The flow transmitter is equipped with a built-in serial communications port. This port is user-selectable to be either an RS232 or RS485 port. For more information on serial communications refer to Panametrics document EIA serial communications (916-054), which is included on the flow manuals CD included with your order.

  • Page 22: Wiring The Modbus Communications Line (Optional)

    2.5.5 Wiring the modbus communications 2.5.7 Wiring the 4-20mA analog input (optional) line (optional) 1. Disconnect the main power to the flow meter and remove the wiring access cover. The Sentinel LCT8 uses the RS485 interface with modbus communications protocol for a maximum line distance 2.
  • Page 23 With external power supply Powered Sentinel LCT8 provides – – transmitter +24VDC for the transmitter 24 VDC AIN3 AIN2 AIN1 AIN3 AIN2 AIN1 power supply – Transmitter Analog input * You can wire to either RTN1 Sensor + IN TB connection. Ain RTN –...

  • Page 24: Wiring The Frequency/Totalizer Output

    2.5.8 Wiring the frequency/totalizer output 2.5.9 Wiring the 4-20 mA analog output Figure 26 below shows sample wiring diagrams of the The standard configuration of the flow transmitter includes frequency/totalizer output circuit for open drain and push- an isolated 4-20 mA analog output. Connections to this pull configurations.

  • Page 25: Operation

    2.6 Operation 2.6.3 Shutdown After the Sentinel LCT8 has been completely installed and wired, proceed to Chapter 3 . Programming on page 21, to While the Sentinel LCT8 is intended for continuous service configure the flow meter. there are occasions where shutdown is required. There are no special requirements specifically for shutdown.
  • Page 26 Front Display Wiring Access Cover Figure 29: SEN898 electronics enclosure - front display and wiring access cover...
  • Page 27 – in/R2 in/R2 in/R2 Aout+ Aout– F/T1+ F/T1– Figure 30: SEN898 electronics enclosure - terminal block layout...
  • Page 28 – RTN1 AIN1 RTN1 RTN2 AIN2 RTN2 RTN3 AIN3 RTN3 T (-) R (+) R (+) T (–) Aout+ Din+ Aout– F/T1+ F/T2+ F/T1– F/T2– Figure 31: SEN898 electronics - wiring diagram (ref. dwg #702-884)
  • Page 29 Figure 32: Wiring LCT8 to SEN898 electronics - cross plane (6” - 24” flowcell), local mount (ref. dwg #702-2041)

  • Page 31: Chapter 3. Programming

    Chapter 3. Programming Introduction The Sentinel LCT8 flow transmitter includes a user program that provides access to the various programmable features of the instrument. This chapter describes step-by-step configuring instructions using the internal keypad shown in Figure 33 below. 3.1.1 HMI features Clear totals key Power indicator...

  • Page 32: Indicator Lights

    3.1.2 Indicator lights The Sentinel LCT8 HMI includes the following indicator lights: • The power indicator is normally lit when the instrument is powered on. • The keypad lock indicator is lit if the internal keypad lock-out switch has been engaged. NOTE: When the keypad lock indicator is lit, the keypad is not functional.

  • Page 33: Navigating Through The Program Options

    3.2 Navigating through the program options 3.2.1 Conventions and guidelines In this manual, menu navigation is illustrated with graphics that represent the Sentinel LCT8 main display. The color of the boxes and arrows used in these illustrations follow the conventions listed in Table 4 below. Table 4: Color code descriptions Color code Monochrome code...

  • Page 34: Security Access Level And Privileges

    3.2.2 Security access level and privileges To prevent unauthorized tampering with either the display or the user program, the Sentinel LCT8 has multiple security access codes which grant different access level privileges (see Table 5 below). Table 5: Security level descriptions Level Security access Default passcode...

  • Page 35: Unlocking The Meter

    3.3.1 Unlocking the meter NOTE: The user needs to enter a valid passcode to unlock 3. After the passcode has been entered, either press the  the meter. ] key to cancel the unlock sequence and return to the  locked measurement view or press the [ ] key to login To unlock the display and/or the user program, refer to...

  • Page 36: Primary

    3.3.2 Primary pages  The meter menu has nine primary pages. It is important 1. From measurement view, press the [ ] key to go to to know how to navigate to these pages, as they provide page 2 (at least user1 access level is required). access to the various features, options and configurations 2.

  • Page 37: Changing The Access Level

    3.3.3 Changing the access level The user can change the access level in two ways: 1. From measurement view, use the [] and [] keys to highlight the security level icon (at least display locked • From measurement view access level is required to make these changes). •...
  • Page 38 3.3.3.2 Changing the access level from user configurations To change the access level from user configurations, refer to Figure 42 below and complete the following steps: NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. 1.

  • Page 39: Programming Menu Options

    3.4 Programming menu options 3.4.1 Channel programming The channel program allows the entry of configuration data 1. Refer to Primary pages on page 26 and navigate and settings adjustments for each physical channel. to page 3: program. 2. Use the [] and [] keys to highlight the desired 3.4.1.1 Activating a channel/path/CHX (status) ...
  • Page 40 3.4.1.2 Entering the signal parameters Use the signal submenu, to set the Sentinel LCT8 transducer Press the [  ] key twice to confirm your choice. signal parameters. 3. Use the [] and [] keys to highlight the signal option. ...
  • Page 41 3.4.1.3 Entering the error limits The error limits option enables setting limits for the acoustic signals. If a signal falls outside these programmed limits, an error code is displayed. To set the error limits, refer to Figure 45 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
  • Page 42 1. Refer to Primary pages on page 26 and navigate to 3.4.1.4 Understanding the error limits Page 3: program. Note the following information about the Sentinel LCT8 error limits: 2. Use the [] and [] keys to highlight the desired channel. ...

  • Page 43: Composite Programming

    3.4.2 Composite programming The composite program allows entry of configuration data that applies to the composite calculations. The composite configurations are appropriately set for the intended application during commissioning. However, these settings should be verified before data is acquired or whenever the meter reports an error. NOTE: Composite programming is accomplished via the program primary page (see Figure 40 on page 26).
  • Page 44 3.4.2.1 Fluid type/tracking configuration It is critical to select the appropriate fluid type/tracking IMPORTANT option for the application. Tracking refers to tracking Consult the factory before choosing either the normal fluid windows, which is used to detect the receive signal when type or preprogrammed tracking options.
  • Page 45 3.4.2.2 Signal parameter configuration 3. At the next screen, use the [] and [] keys to highlight CAUTION!  the signal option. Then, press the [ ] key to confirm The SIGNAL default settings are suitable for  your selection or press the [ ] key to return to the most applications.
  • Page 46 Turning dimensional compensation on enables the meter to 3. At the next screen, use the [] and [] keys to  perform calculations that correct for geometric changes in highlight the signal option. Then, press the [ ] key  the flowcell caused be temperature variations.

  • Page 47: Setting Up The Input Data Feeds

    3.4.3 setting up the input data feeds Use the inputs submenu to select where the temperature, pressure and density inputs are used. To set up the desired inputs, refer to Figure 49 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

  • Page 48: Setting Up The Api

    1. Refer to Primary pages on page 26 and navigate to 5. At the next screen, use the [] and [] keys to highlight  page 3: program. the desired option and press the [ ] key twice to confirm ...
  • Page 49 Use  or  arrow to highlight NOTE: To select composite, “API setup…” if not already highlight the option and highlighted. press  key twice to confirm selection. Once you confirm your selection you will see the next screen. Use  or  arrow to highlight the “API table type”...
  • Page 50 3.4.4.2 Setting the API condition - base condition  To set the API Base condition, refer to Figure 51 below and confirm your selection or press the [ ] key to return to complete the steps on the next page. the previous screen.
  • Page 51 Setting the API condition - flow measurement at To set the API base condition, refer to Figure 52 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend At least user 1 level access required to follow the step.
  • Page 52 1. At the next screen, use the [] and [] keys to highlight 5. To set the alternate conditions:  the API setup option. Then, press the [ ] key to confirm a. Use the [] and [] keys to highlight the alternate ...

  • Page 53: Generic Meter Configuration

    3.5 Generic meter configuration 3.5.1 Selecting the preferred unit type This section describes the procedures for configuring the following: To select the desired units, refer to Figure 53 below and • Units (see below) complete the following steps: • Communication (see Setting up communication NOTE: If necessary, refer to Table 4 on page 23 as a on page 44) reminder about color code meanings.

  • Page 54: Setting Up Communication

    3.5.2 Setting up communication This section described how to configure Panalink and modbus communication. 3.5.2.1 Setting up Panalink communications To set up Panalink communication, refer to Figure 54 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend At least user 3 level access Green...
  • Page 55 1. Refer to Primary pages on page 26 and navigate to d. Use the [] and [] keys to highlight the parity option  page 4: configuration (generic). and press the [ ] key to confirm your selection. Then, select the desired option from the list and press the 2.
  • Page 56 3.5.2.2 Setting up modbus communications - additional option NOTE: Modbus is optional and this section is applicable only selectable parity and number of stop bits (default = 9600 if the modbus option was ordered. bps, even parity and 1 stop bit). To set up modbus communication settings, refer to Figure The Sentinel LCT8 supports digital communications using 55 below and complete the steps on the next page.
  • Page 57 1. Refer to Primary pages on page 26 and navigate to d. Use the [] and [] keys to highlight the baud rate  page 4: configuration (generic). option and press the [ ] key to confirm your selection. Then, select the desired option from the list and press 2.
  • Page 58 To select the units for the volumetric and totalizer output registers, refer to Figure 56 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend Green At least user 3 level access required to follow the step.
  • Page 59 1. Refer to Primary pages on page 26 and navigate to c. Use the [] and [] keys to highlight the std  page 4: configuration (generic) . volumetric option and press the [ ] key to confirm your selection. Then, select the desired option from 2.

  • Page 60: Setting Reset Totals

    3.5.3 Setting reset totals 1. Refer to Primary pages on page 26 and navigate to IMPORTANT Page 4: configuration (generic). If the totalizer lock is enabled, the previous totals will not 2. Use the [] and [] keys to highlight reset totals and be cleared by this process.

  • Page 61: Setting Up Totalizer Error Handling

    3.5.4 Setting up totalizer error handling To select the totalize on errors options, refer to Figure 58 4. Use the [] and [] keys to select either the yes or no  below and proceed as follows: option and press the [ ] key twice to confirm your ...

  • Page 62: Setting The Date And Time

    3.5.5 Setting the date and time To set the date/time, refer to Figure 59 below and proceed 4. If you chose to edit the setting, use the [] and [] keys as follows: to highlight the desired character. Then, use the [] and [] keys to increment or decrement the value for that NOTE: If necessary, refer to Table 4 on page 23 as a character.

  • Page 63: Inputs/Outputs

    3.6 Inputs/outputs Configure the analog and digital inputs/outputs via primary Table 6: Analog output error level options page 5: IO. See the following sections for details: • Setting up an analog output 1 on page 53 Option Output response • Setting up a frequency/totalizer output on page 55 Hold value Holds the last “good”...
  • Page 64 Legend Green At least user 3 level access required to follow the step. Dotted Not all transitional screens are shown (at least user 3 level green access required). Green Option only visible to user 3 or above. Use  or  arrow to highlight the preferred option and press twice...

  • Page 65: Setting Up A Frequency/Totalizer Output

    3.6.2 Setting up a frequency/totalizer output To configure a frequency/totalizer output, refer to Figure 61 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend Green At least user 3 level access required to follow the step.
  • Page 66 1. Refer to Primary pages on page 26 and navigate to The totalizer output can deliver a pulse per unit volume (or page 5: IO. time) at a minimum pulse width of 1ms. This minimum works out to a maximum pulse train frequency of 500Hz. Care 2.
  • Page 67 3.6.2.1 Frequency output termination When driving the Sentinel LCT8 frequency/totalizer output Figure 63 below shows a typical output waveform at the end over distances greater than 100 feet, a 24 AWG twisted- of a terminated I/O cable when driven by the Sentinel LCT8 pair I/O cable is typically used.
  • Page 68 3.6.2.2 Programming a frequency output To program a frequency output, refer to Figure 64 below and complete the following steps: NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend Green At least user 3 level access required to follow the step. Dotted Not all transitional screens are shown (at least user 3 level green...
  • Page 69 1. Navigate to the mode option on the freq/tot status 3.6.2.3 Programming a totalizer output screen (see Setting up a frequency/totalizer output To program a totalizer output, refer to Figure 64 on page on page 55). Then, press the [ ...

  • Page 70: Setting Up An Alarm Output

    3.6.3 Setting up an alarm output To set up an alarm output, refer to Figure 65 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend Green At least user 3 level access required to follow the step.
  • Page 71 1. Refer to Primary pages on page 26 and navigate to 6. Use the [] and [] keys to highlight Latch state and  page 5: IO. press the [ ] key to confirm your selection. Then, use the [] and [] keys to highlight the desired option (Latch, 2.
  • Page 72 3.6.3.1 Understanding the alarm type selection If normal or failsafe was selected as the alarm type, you must then program the parameters listed in Table 11 below. Table 11: Alarm type options Options Parameters Description Level Units This defines the measured units monitored by the alarm Trip point This defines the measured value required to trip the alarm This defines a range of values around the trip point which neither trip nor...

  • Page 73: Setting Up An Analog Input (Optional)

    3.6.4 Setting up an analog input (optional) If an option card with an analog input is installed, to set up the analog input, refer to Figure 66 on page 63 below and complete the steps on the following page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend Green At least user 3 level access required to follow the step.
  • Page 74 1. Refer to Primary pages on page 26 and navigate to 6. Use the [] and [] keys to highlight cal and press the  page 5: IO . ] key to confirm your selection. Then, select either the base trim, span trim, trim base, trim span, or reset trim 2.

  • Page 75: Setting Up An Rtd Input (Optional)

    3.6.5 Setting up an RTD input (optional) If an option card with an RTD input is installed, to set up the RTD input, refer to Figure 67 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend Green At least user 3 level access required to follow the step.
  • Page 76 1. Refer to Primary pages on page 26 and navigate to Calibration instructions: page 5: IO . To calibrate an RTD input, make sure the input is wired per 2. Use the [] and [] keys to highlight slot 1 and press the Figure 25 on page 13, and use a temperature bath and ...

  • Page 77: Configuring The Display

    3.7 Configuring the display To configure the Sentinel LCT8 display, refer to Figure 68 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend At least user 1 level access required to follow the step.
  • Page 78 1. Refer to Primary pages on page 26 and navigate to 6. Use the [] and [] keys to highlight contrast and press  page 6: display. the [ ] key to confirm your selection. Then, adjust the  display contrast as desired and press the [ ] key to 2.

  • Page 79: Calibrating The Analog Output

    3.8 Calibrating the analog output To calibrate the 4-20 loop, refer to Figure 69 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend Green At least user 3 level access required to follow the step.
  • Page 80 7. Use the [] and [] keys to highlight span trim and press IMPORTANT  the [ ] key to confirm your selection and proceed to the Make sure the ammeter used is properly calibrated. next screen. a. If the span trim value is not 20 mA, set it to 20 mA. 1.

  • Page 81: User Configuration Setting

    3.9 User configuration setting To configure the Sentinel LCT8 User settings, refer to Figure 70 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend At least user 1 level access required to follow the step.

  • Page 82: The Edit Passcodes Option

    1. Refer to Primary pages on page 26 and navigate to 3.9.1 The edit passcodes option page 8: user configuration. This user option is available only at the user-admin access 2. Use the [] and [] keys to highlight the edit passcodes, level.

  • Page 83: Factory Status

    3.10 Factory status Attention! Always consult the Panametrics factory before using the default meter and Upgrade options! To configure the Sentinel LCT8 factory settings, see Figure 71 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend At least user 1 level access required to follow the step.
  • Page 84 1. Refer to Primary pages on page 26 and navigate to 7. To turn the meter off and reboot it, use the [] and []  page 9: factory. keys to highlight power cycle meter and press the [ ] key to confirm your choice.

  • Page 85: Chapter 4. Maintenance

    Chapter 4. Maintenance Software If the software code needs to be updated, we do suggest using a trained Panametrics service engineer to make sure that best practices are followed prior to, during and after the new code loading.

  • Page 86: Checking The Software Version Numbers

    4.1.1 Checking the software version numbers An important step when troubleshooting your meter is to 3. Use the [] and [] keys to highlight main and press the make sure the expected software code is installed. This [] key twice to confirm your selection. After recording ...

  • Page 87: Save, Restore Or Delete A Site File

    4.1.2 Save, restore or delete a site file Anytime the meter programming is changed, the current CAUTION! site file should be saved. If a software corruption occurs, this Accidentally saving or deleting a site file can allows the possibility of loading the saved site file to quickly have unintended consequences when you resolve the problem and resume normal operation.
  • Page 88 To save, restore or delete a site file, refer to Figure 74 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. NOTE: Do not use default meter and Legend upgrade or site file options before At least user 1 level access required to follow the step.

  • Page 89: Updating The Instrument Software

    Note the following: • Save: copies the current meter configuration to internal memory, overwriting any existing site file. • Restore: replaces the current meter configuration with the previously saved site file. • Delete: deletes the previously saved site file. Complete the following steps; 1.
  • Page 90 4.1.3.1 Meter software update method 1 To update the meter software from the factory Page, refer to 6. When the Tera Term: XMODEM send file selector window Figure 77 below and complete the following steps. opens (see Figure 79 on page 81), locate and select the .cod extension file from your PC.
  • Page 91 7. After the file transfer is complete, the Tera Term terminal window will appear as in Figure 81 on page 81, and the meter will start up. 8. The meter software update is now complete. Proceed to Post Update recommendations on page 83. Figure 80: XMODEM Send status (left) and meter display file receive status (right) Figure 81: Update complete message in Tera Term...
  • Page 92 4.1.3.2 Meter software update method 2 To update the meter software using the Tera Term software, proceed as follows: 1. Power on the Sentinel LCT8, then launch the Tera Term software and press ESC on your PC keyboard. The Tera Term terminal window indicates that the meter is awaiting your input, as in Figure 82 below.
  • Page 93 4.1.3.3 Post update recommendations To ensure that the Sentinel LCT8 operates correctly, To default the meter, use either of the two following methods: Panametrics recommends defaulting the meter after Method 1: Using the factory menu software updates. Refer to Figure 87 below and complete the step-by-step instructions after the figure.
  • Page 94 Method 2: During power on 1. Press and hold the CLR TOTALS key during power on until the default meter? screen opens, then release the key. Refer to Figure 88 below and complete the step-by-step instructions after the figure. 2. Do one of the following: NOTE: If necessary, refer to Table 4 on page 23 as a •...

  • Page 95: Mechanical

    4.2 Mechanical 4.2.1 Servicing the pipe flange interface WARNING! WARNING! Before opening the pressure vessel, it must be completely de-pressurized! This warning Before opening the pressure vessel, it must applies to all three interfaces described in be completely de-pressurized! this section (flange interface, transmitter connection and sensor ports).

  • Page 96: Servicing The Sensor Ports And Transmitter Connection

    4.2.2 Servicing the sensor ports and transmitter connection 2. Relieve potential pressure build-up by loosening the WARNING! pressure relief plug on the bottom of the upstream “A” Before you open the sensor ports or the plane sensor quadrant (see Figure 91 above), using a transmitter connection, the system must be 10 mm hex drive socket or wrench.

  • Page 97: Spare Parts List

    4.2.3 Spare parts list The Sentinel LCT8 is a high-accuracy calibrated flow meter. Local custody transfer requirements may disallow field replacement of any parts in this flow metering system without a proper calibration of the entire system at an approved calibration facility.

  • Page 99: Chapter 5. Troubleshooting

    Chapter 5. Troubleshooting Introduction The Sentinel LCT8 flow transmitter is a reliable, easy to maintain instrument. When properly installed and operated, as described in Chapter 2, installation, the meter provides accurate flow rate measurements with minimal user intervention. However, if a problem should arise with the electronics enclosure or transducers, this chapter explains how to troubleshoot the Sentinel LCT8.

  • Page 100: Error Codes

    5.2 Error codes 5.2.1 Overview 5.2.2.2 More than one channel in error If more than one channel is in error, the most likely cause is If a problem occurs with the electronics or transducers, a changes in process and/or flow conditions such as: built-in error code message system greatly simplifies the troubleshooting process.
  • Page 101 5.2.2.3 Table of error codes Table 13: Error code descriptions Error code Problem Cause Recommended action No error No error condition This message appears briefly to No action is required. currently exists indicate that the meter is now measuring without errors and any previous errors have now cleared.
  • Page 102 Table 13: Error code descriptions Error code Problem Cause Recommended action Analog The current setting The calculated output value exceeds Verify that the 4-20 mA loop output is outside the the programmed limits. configuration base and span programmed limits. settings are correct for the process. Revise the output range as necessary.
  • Page 103 Table 13: Error code descriptions Error code Problem Cause Recommended action W24: Low SNR The signal to Noise The acoustic signal from the process Refer to the fluid and pipe problems ratio is low. is of very low quality due to excessive and transducer problems sections to noise in the signal.

  • Page 104: Flow Info

    5.3 Flow info The Sentinel LCT8 offers built-in diagnostic parameters to aid in troubleshooting. To view multiple diagnostics for all channels via the flow info form, refer to Figure 92 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. NOTE: The flow info pages are updated with live measurement diagnostics and hence constantly varying.
  • Page 105 1. Refer to Primary pages on page 26 and navigate to d. P4: Use the [] and [] keys to view the current errors page 2: device info. diagnostic data for channels 1-8. 2. Use the [] and [] keys to highlight flow info and press e.

  • Page 106: Fluid And Pipe Problems

    5.4 Fluid and pipe problems • The fluid soundspeed must not vary excessively. If preliminary troubleshooting with the error code messages and the diagnostic parameters indicates a possible The Sentinel LCT8 will tolerate relatively large changes problem, proceed with this section. Measurement problems in the fluid soundspeed, as may be caused by variations fall into two categories: in fluid composition and/or temperature.

  • Page 107: Transducer Problems

    5.5 Transducer problems 5.6 Uncertainty in flow rate for a non-insulated flowcell The Sentinel LCT8 transducers are rugged, reliable devices that do not come into contact with the process fluid. If Dimensional compensation considers the effect on the erratic or inaccurate readings can be tracked to a problem geometrical dimensions of the flowcell due to the material with one or more transducers, such as physical damage, thermal expansion or contraction.

  • Page 108: Manufacturing Tests

    5.7 Manufacturing tests 5.7.1 Frequency output test The procedures for testing certain key functionalities of the Sentinel LCT8 are described in this section. The Sentinel To test a frequency output, refer to Figure 94 below and LCT8 Watchdog test, keypad test, display test and IO test are complete the steps on the following page.
  • Page 109 1. Refer to Primary pages on page 26 and navigate to 5. Use the [] and [] keys to highlight frequency and press   page 1: manufacturing tests. the [ ] key to confirm your choice or press the [ ] key to return to the previous screen.

  • Page 110: Totalizer Output Test

    5.7.2 Totalizer output test To test a totalizer output, refer to Figure 95 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings. Legend Options in requires at least user admin access Options in...
  • Page 111 1. Refer to Primary pages on page 26 and navigate to 5. Use the [] and [] keys to highlight totalizer and press   page 1: manufacturing tests. the [ ] key to confirm your choice or press the [ ] key to return to the previous screen.

  • Page 112: Alarm Output Test

    5.7.3 Alarm output test To test an alarm output, refer to Figure 96 below and complete the following steps. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.  1. Refer to Primary pages on page 26 and navigate to 5.

  • Page 113: Internal Logs

    5.8 Internal logs The Sentinel LCT8 tracks all changes to the programming, a circular log, and it ensures that the user is always viewing meter status (power on, power off), error status, date/time the 1000 most recent event records. changes, etc., and stores the information in the internal The activity types that generate an audit log log file record audit or error logs.

  • Page 114: Error Logs

    5.8.1.2 Formatting and viewing audit log records The audit log records have neatly formatted columns for easy readability. If the record types listed in Table 15 on page 103 contain irrelevant/not applicable column values, they are represented as “---” in the corresponding record column. A typical audit log file record appears as follows: Rec# Date...

  • Page 115: Chapter 6. Specifications

    Chapter 6. Specifications Physical specifications 6.1.1 Flowcell dimensions The Sentinel LCT8 overall dimensions are shown in Figure 97 below and are listed in Table 16 on page 106. Section B-B1 Figure 97: Flowcell assembly for Sentinel LCT8 (6” to 24” pipes)
  • Page 116 Table 16: Flowcell dimensions Dimensions in Dimensions in Pipe diameter Flange class English units (rounded) metric units (rounded) (inches) (lb) L (in.) H2 (in.) A (in.) L (mm) H2 (mm) A (mm) 150# 300# 600# 150# 300# 600# 150# 300# 600# 150# 300#...

  • Page 117: System Weight

    6.1.2 System weight 6.1.3 SEN898 transmitter weight Aluminum: 29 lb. (13.2 kg) WARNING! Stainless steel: 58 lb. (26.3 kg) When working with weights over 45 lb (20.4 kg), it is recommended that a properly rated lifting device be used. Table 17 below lists the worst case dry weights for each vessel size by pressure class.

  • Page 118: Operation And Performance Specifications

    6.2 Operation and performance specifications 6.2.1 Flow rate ranges Maximum and minimum flow rates through the Sentinel LCT8 ultrasonic liquid flow transmitter are based on the pipe diameter and the process fluid pressure. The information in Table 18 below is approximate, and it is based on representative liquid components at a process temperature of 70°F (21°C).

  • Page 119: Fluid Types

    6.2.3 Fluid types 6.3 Meter body specifications Liquid hydrocarbons, crude and refined products, other liquids 6.3.1 Meter body materials • Carbon steel SA216 Gr. WCB (carbon steel) 6.2.4 Calibration • Low temperature carbon steel SA352 Gr. LCB (low temp Each meter is calibrated to meet the OIML R117-1 international carbon steel) standard.

  • Page 120: Electronics (Sen898) Specifications

    6.4 Electronics (SEN898) specifications 6.4.1 Electronics enclosure material 6.4.9 Inputs Standard: Epoxy coated aluminum • Two 4/20 mA analog inputs and one 100 ohm RTD input for temperature, pressure and density input (optional) Optional: Stainless steel A351, Gr 316/316L • Three 4/20 mA analog inputs for temperature, pressure and density input (optional) 6.4.2 Electronics enclosure dimensions Size (L x H x D): 13 x 11 x 9 in.

  • Page 121: Appendix A. Ce Mark Compliance And High Noise Environments

    Appendix A. CE Mark compliance and high noise environments A.1 Introduction For CE Mark compliance, the Sentinel LCT8 flow transmitter must meet the EMC and LVD directives. IMPORTANT CE Mark compliance is required for all units intended for use in EU countries, and is also recommended for installation in high electrical noise environments.
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  • Page 123: Appendix B. Service Record

    Appendix B. Service record Introduction Use this appendix to record information that will be beneficial if the meter needs to be updated or for troubleshooting purposes. Whenever an issue occurs or any service procedure is performed on the Sentinel LCT8, the details should be recorded in this appendix.
  • Page 124 Table 23: Frequency/totalizer output Parameter Freq/total (example) Freq/total #1 Freq/total #2 FT link mode Independent Freq/tot status F/T mode Frequency F/T output drive ctl Open drain F/T channel Composite F/T publisher Volumetric Cubic meters/ F/T units Fbase Fspan 10000 Freq: value (min) Freq: value (max) 2500 Freq: error level...

  • Page 125: Baseline Diagnostics

    B.3 Baseline diagnostics Table 25: Baseline flow rate Diagnostic Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 Ch 7 Ch 8 Velocity Gain ATTEN ATw TW ATw G ATw SNR B.4 Troubleshooting diagnostics NOTE: Make additional copies of this table as needed. Table 26: Baseline flow rate Diagnostic Ch 1...

  • Page 126: Data Entry

    B.5 Data entry Record complete and detailed service data for the Sentinel LCT8 in Service record below. Make additional copies of this table as needed. Table 27: Service record Date Description of service Performed by...

  • Page 127: Appendix C. Modbus Register Map

    Appendix C. Modbus register map NOTE: Grayed out register addresses indicate the register is reserved for future use only. Table 28: Modbus register map Composite Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Reg.
  • Page 128 Table 28: Modbus register map Composite Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Measure- Read/ Category...
  • Page 129 Table 28: Modbus register map Composite Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Measure- Read/ Category...
  • Page 130 Table 28: Modbus register map Composite Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Reg. add. Measure- Read/ Category...
  • Page 131 DECLARATION CONFORMITY DOC-0009, Rev. D1 Panametrics 1100 Technology Park Drive Billerica, MA 01821 declare under our sole responsibility that the Sentinel LCT/LCTX Liquid Custody Transfer Ultrasonic Flow Meter Sentinel LNG Cryogenic Liquids Ultrasonic Flow Meter Sentinel SEN898 Ultrasonic Flow Transmitter to which this declaration relates, is in conformity with the following standards: •...
  • Page 133 Certification & safety statements Certification and safety statements for the Sentinel™ LCT or LCTx ultrasonic flow meter When installing this apparatus, the following requirements must be met: • Field wiring shall be rated at least 10°C above 85°C. • Connecting cables shall be mounted securely and protected from mechanical damage, pulling and twisting. •...
  • Page 134 Special conditions for safe use • Consult the manufacturer if dimensional information on Process the flameproof joints is necessary. Mounting T-code Temperature (TP) • Follow the manufacturer’s instructions to reduce the potential of an electrostatic charging hazard. Local TP ≤ 85°C •...
  • Page 135 Markings • Markings shall appear on the /, as shown below (LCT8 • Markings shall appear on the transmitter tag plate, as shown as an example): shown below (LCT8 shown as an example): Panametrics LLC EXPLOSIONPROOF ONLY (Ex d) EXPLOSIONPROOF with INCREASED SAFETY (Ex d e) •...
  • Page 136 Connection and wiring diagram (ref. dwg. 702-884) – RTN1 AIN1 RTN1 RTN2 AIN2 RTN2 RTN3 AIN3 RTN3 T (-) R (+) R (+) T (–) Aout+ Din+ Aout– F/T1+ F/T2+ F/T1– F/T2–...
  • Page 137 Wiring connections for increased safety Maximum size*: Solid - 4.0 mm (12 AWG) stranded - 2.5 mm (14 AWG) Power connection Number of conductors**: 2 Solid - max 1.5mm (16 AWG) 2 Stranded - max 1.0 mm (18 AWG) Maximum size*: Solid - 4.0 mm (12 AWG) stranded - 2.5 mm (14 AWG)
  • Page 138 Oil & Gas; Energy; Healthcare; Water and Wastewater; Chemical Processing; Food & Beverage and many others. Join the conversation and follow us on LinkedIn linkedin.com/company/panametricscompany Copyright 2021 Baker Hughes Company. All rights reserved. 910-314 Rev. A panametrics.com BHCS39065 (08/2021)

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