SMAR LD301 Operation And Maintenance Instruction Manual
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SMAR LD301 Operation And Maintenance Instruction Manual

Intelligent pressure transmitter with control capability
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See also: Operating and Maintenance Instruction Manual
OPERATION AND MAINTENANCE
INSTRUCTION / MANUAL
INTELLIGENT PRESSURE TRANSMITTER
WITH CONTROL CAPABILITY
JAN / 03
LD301
VERSION 6
L D 3 0 1 M E

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Summary of Contents for SMAR LD301

  • Page 1 OPERATION AND MAINTENANCE INSTRUCTION / MANUAL INTELLIGENT PRESSURE TRANSMITTER WITH CONTROL CAPABILITY JAN / 03 LD301 VERSION 6 L D 3 0 1 M E...
  • Page 2 Specifications and information are subject to change without notice. For the latest updates, please visit the SMAR website above. BRAZIL ARGENTINA CHINA FRANCE Smar Equipamentos Ind. Ltda. Smar Argentina Smar China Corp. Smar France S. A. R. L.
  • Page 3 It is based on a field-proven capacitive sensor that provides reliable operation and high performance. The digital technology used in the LD301 enables the choice of several types of transfer functions, an easy interface between the field and the control room and several interesting features that considerably reduce the installation, operation and maintenance costs.
  • Page 4 LD301 - Operation and Maintenance Instruction Manual NOTE This manual is compatible with version 6.XX, where 6 denotes software version and XX software release. The indication 6.XX means that this manual is compatible with any release of software version 6.

  • Page 5: Table Of Contents

    Index Table of Contents 1 INSTALLATION GENERAL................................1.1 MOUNTING ................................1.1 ELECTRONIC HOUSING ROTATION ........................1.3 ELECTRIC WIRING ............................... 1.4 2 OPERATION FUNCTIONAL DESCRIPTION - SENSOR ......................2.1 FUNCTIONAL DESCRIPTION - HARDWARE ....................... 2.2 FUNCTIONAL DESCRIPTION - SOFTWARE ......................2.3 THE DISPLAY................................
  • Page 6 LD301 - Operation and Maintenance Instruction Manual 6 TECHNICAL CHARACTERISTICS FUNCTIONAL SPECIFICATIONS.......................... 6.1 CONFIGURATOR..............................6.3 PERFORMANCE SPECIFICATIONS........................6.3 PHYSICAL SPECIFICATIONS..........................6.4 ORDERING CODE FOR DIFFERENTIAL, MANOMETRIC AND ABSOLUTE TRANSMITTER ......6.6 ORDERING CODE FOR LEVEL TRANSMITTER ....................6.7 APPENDIX A: CONTROL DRAWING ............................6.8...

  • Page 7: Installation

    There are, however, ways of reducing the effects of temperature, humidity and vibration. The LD301 has a built-in temperature sensor to compensate for temperature variations. At the factory, each transmitter is submitted to a temperature cycle, and the characteristics under different temperatures are recorded in the transmitter memory.
  • Page 8 19.1 3” 209.5 168.1 22.2 209.5 168.1 38.7 22.2 228.6 190.5 24.4 19.1 4” 32.2 22.3 215.9 25.4 DIN 2501 / 2526 form D - DIMENSIONS 10/40 10/40 10/16 25/40 Fig. 1.1 – Dimensional Drawing and Mounting Position for LD301...

  • Page 9: Electronic Housing Rotation

    (See section 5 - spare parts list for mounting backets available) Fig. 1.2 – Drawing Mounting of LD301 on the Panel Observe operating safety rules during wiring, draining or blow-down. Some examples of installation, illustrating the position of the transmitter in relation to the taps, are shown in Figure 1.3.

  • Page 10: Electric Wiring

    Explosion proof, nonincendive and intrinsic safety Factory Mutual certification are standards for LD301 (see control drawing in Appendix A). Should other certifications be necessary, refer to the certification or specific standard for installation limitations.
  • Page 11 Avoid routing signal wiring close to power cables or switching equipment. The unused outlet connection should be plugged and sealed accordingly. The LD301 is protected against reverse polarity. The Figure 1.6 - Conduit Installation Diagram, shows the correct installation of the conduit, in order to avoid penetration of water, or other substance, which may cause malfunctioning of the equipment.
  • Page 12 Connection of the LD301 working as a controller should be as indicated in Figure 1.9. Connection of the LD301 in multidrop configuration should be done as in Figure 1.10. Note that a maximum of 15 transmitters can be connected on the same line and that they should be connected in parallel.
  • Page 13 Installation Fig. 1.8 – Wiring Diagram for the LD301 Working as a Transmitter Fig. 1.9 – Wiring Diagram for the LD301 Working as a Controller (Optional) Fig. 1.10 – Wiring Diagram for the LD301 in Multidrop Configuration Fig. 1.11 – Load Curve...
  • Page 14 LD301 – Operation and Maintenance Instruction Manual...

  • Page 15: Operation

    Section 2 OPERATION FUNCTIONAL DESCRIPTION – SENSOR The LD301 Series Intelligent Pressure Transmitters use capacitive sensors (capacitive cells) as pressure sensing elements, as shown in Figure 2.1. Fig. 2.1 – Capacitive Cell Where, and P are the pressures in chambers H and L CH= capacitance between the fixed plate on P side and the sensing diaphragm.

  • Page 16: Functional Description - Hardware

    21 mA, depending on the measurement and sensor status. The ld301, in the transmitter mode, shows failure indication at 3.6 mA if configured for low signal failure; at 21 mA, if configured for high signal failure; 3.8 mA in the case of low saturation;...

  • Page 17: Functional Description - Software

    Operation Power Supply Isolation The sensor power supply is isolated from the main circuit by this module. Display Controller It receives the data from the CPU and actives the LCD segments. Also it actives the back plane and the control signals for each segment. Local Adjustment Two switches that are magnetically activated.
  • Page 18 LD301- manual de Instruções, Operação e manutenção Fig.2.3 – LD301 – Software Block Diagram...

  • Page 19: The Display

    Monitoring During normal operation, the LD301 is in the monitoring mode. In this mode, indication alternates between the primary and secondary variable as configured by the user. See Figure. 2.5. The display indicates engineering units, values and parameters simultaneously with most status indicators.
  • Page 20 INIT The LD301 is in initializing after power on. CHAR The LD301 is characterization mode. See Section 3 – Trim. FAIL SENS Sensor failure. Refer to Section 5 - Maintenance. Current output saturated in 3.6 or 21 mA. See Section 5 – Maintenance.

  • Page 21: Configuration

    Tag, the transmitters addresses may be "0" while, their output current is still being controlled, even in a multidrop configuration. In the case of the LD301, which can be configured both as Transmitter as a Controller; ...

  • Page 22: Configuration Features

    4-20 mA signal, up to 2 km away from the transmitter. Manufacturing Data and Identification The following information about the LD301 manufacturing and identification data is available: TAG – 8 character alphanumeric field for identification of the transmitter.

  • Page 23: Primary Variable Trim - Pressure

    Programming Using Hand-held Terminal MESSAGE - 32-character alphanumeric field for any other information, such as the name of the person who made the last calibration, some special care to be taken, or if a ladder is needed for accessing. FLANGE TYPE - Conventional, Coplanar, Remote Seal, Level 3 in # 150, Level 4 in # 150, Level 3 in # 300, Level 4 in # 300, Level DN80 PN10/16, Level DN80 PN25/40, Level DN100 PN10/16, Level DN100 PN25/40, Level 2 in # 150, Level 2 in # 300, Level DN50 PN10/16, Level DN50 PN25/40, None,...

  • Page 24: Primary Variable Current Trim

    The transmitter will display "CHAR", thus indicating that the characterization process is activated. The LD301 is fitted with an internal feature to enable or disable the use of the Characterization Table.
  • Page 25 This function directly affects the transmitter's 4-20 mA output. It is used to define the transmitter's working range; in this document it is referred to as the transmitter's calibration. The LD301 transmitter includes two calibration features: CALIBRATION WITH REFERENCE: this is used to adjust the transmitter's working range, using a pressure standard as a reference.

  • Page 26: Engineering Unit Selection

    100%, or transmitter mode output equal to 20 mA). The user unit may be selected from a list of options included in the LD301. Table 3.2 makes it possible to associate the new measurement to the new unit so that all ...

  • Page 27: Transfer Function For Flow Measurement

    5 characters Table 3.2 – Available User Units Should a special unit other than those presented on Table 3.2 be required, the LD301 allows the user to create a new unit by entering up to 5 alphanumeric digits. The LD301 includes an internal feature to enable and disable the User Unit.

  • Page 28: Table Points

    TABLE - The output is a curve formed by 16 points. These points may be edited directly on the XY Table of the LD301. For example, it may be used as a camber table for tanks in applications where the tank volume is not linear in relation to the measured pressure.

  • Page 29: Totalization Configuration

    The LD301 includes an internal feature to enable and disable the Linearization Table. TOTALIZATION CONFIGURATION When the LD301 works in flow applications it is often desirable to totalize the flow in order to know the accumulated volume or mass that has flown through the pipe/channel.

  • Page 30: Pid Controller Configuration

    As a PID Controller, the LD301 may run a PID type control algorithm, where its 4 to 20 mA will represent the status of the Manipulated variable (MV). In such a mode, output is 4 mA when the MV = 0% and 20 mA when MV= 100%.

  • Page 31: Equipment Configuration

    Equipment Configuration The LD301 enables the configuration of not only its operational services, but of instrument itself. This group includes services related to: Input Filter, Burn Out, Addressing, Display Indication, Writing Protection and Passwords.

  • Page 32: Equipment Maintenance

    PASSWORDS - this service enables the user to modify the operation passwords used in the LD301. Each password defines the access for a priority level (1 to 3); such configuration is stored in the LD301 EEPROM.
  • Page 33 Circuit Number - This number is unique to every main circuit board and cannot be changed. Sensor Number - The serial number of the sensor connected to the LD301 and cannot be changed. This number is read from the sensor every time a new sensor is inserted in the main board.
  • Page 34 LD301- Operation and Maintenance, Instruction manual BACKUP When the sensor or main circuit is changed, it is necessary, immediately after the assembly, to transfer the data of the new sensor to the main board or the old sensor data for the new main plate.

  • Page 35: Programming Using Local Adjustment

    If the LD301 display is not connected, while the instrument is in the Controller mode, no local adjustment mode will be enabled. When the display is connected, the simple local adjustment procedure in the controller mode is rather different from the one in the transmitter mode.

  • Page 36: Simple Local Adjust

    TOTALIZATION functions. Zero and Span Reranging The LD301 working in the transmitter mode can be very easily calibrated. It requires only Zero and Span adjustment in accordance with the working range. To make these adjustments, the instrument must be configured as "transmitter" (XMTR).

  • Page 37: Complete Local Adjustment

    (S), details of the chosen option are shown. Figure 4.2 - Programming Tree Using Local Adjustment shows the LD301 available options. Fig. 4.2 – Local Adjustment Programming Tree – Main Menu Actuating in (Z) activates local adjustment.

  • Page 38: Operation [Oper]

    LD301 – Operation and Maintenance Instruction Manual OPERATION [OPER] This adjustment option is applicable to the LD301 configured in the Controller mode. It allows the control state to be changed from Automatic to Manual and vice versa, and also to adjust the Setpoint and Manipulated Variable values.

  • Page 39: Tuning [Tune]

    S: Escapes to the MAIN menu. TUNING [TUNE] This adjustment option is applicable to the LD301 configured in the Controller mode. It allows the control loop to be tuned, acting on the Proportional, Integral and Derivative terms, and also to alter the PID mode.
  • Page 40 LD301 – Operation and Maintenance Instruction Manual Kp - Adjust (KP) Z: Moves to the PROPORTIONAL GAIN DECREASE function. S: Increases the proportional gain until the magnetic tool is removed or 100 is reached. Z: Moves to the TR_ADJUSTMENT function.

  • Page 41: Configuration [Conf]

    Digital filter damping time configuration of the readout signal input. Selection of the transference function to be applied to the measured variable. Operational mode selection for the LD301: Transmitter or Controller. Figure 4.5 shows branch CONF with the available options.

  • Page 42: Range (Range)

    LD301 – Operation and Maintenance Instruction Manual CONFIGURATION BRANCH (CONF) Z: Moves to the TOTAL branch. S: Enters the CONFIGURATION branch, starting with function display (LCD_1). Display 1 (LCD_1) Z: Moves to the function Display 2 (LCD_2). S: Starts selection of variable to be indicated as primary display.
  • Page 43 Programming Using Local adjustment RANGE BRANCH (RANGE) Z: Moves to the FUNCT function. S: Enters the RANGE branch, starting with the function UNIT. Unit (UNIT) Z: Moves to the LRV function. S: Starts selection of engineering unit for process variable and setpoint indication. After activating (S), you can move around the options available in the table below by activating (Z).
  • Page 44 LD301 – Operation and Maintenance Instruction Manual Upper Range Value Adjust without Reference {URV} Z: Moves to the URV DECREASE function. S: Increases the Upper Value until the magnetic tool is removed or the maximum for the Upper Value is reached.
  • Page 45 Programming Using Local adjustment Z: Moves to the SAVE function. S: Decreases the damping time constant until the magnetic tool is removed or 0 seconds is reached. Save (SAVE) Z: Moves to the ESCAPE of RANGE menu. S: Saves the LRV, URV, ZERO, SPAN and DAMP values in the transmitter EEPROM. Escape (ESC) Z: Moves to the UNIT function.

  • Page 46: Operation Mode (Mode)

    LD301 – Operation and Maintenance Instruction Manual Escape (ESC) Z: Moves to the LINE function. S: Escapes to the MODE function. OPERATION MODE (MODE) Z: Moves to the ESCAPE to CONF menu. S: This function is protected by a "password," when prompted PSWD, enter the password.

  • Page 47: Pressure Trim [Trim]

    Programming Using Local adjustment TOTALIZATION BRANCH (TOTAL) Z: Moves to the TRIM branch. S: Enters the totalization branch, starting with function Total on/ off. Totalization ON-OFF (TOTAL) Z: Moves to the RESET function. S: Toggles the totalization On to Off or Off to On. Reset Totalization (RESET) Z: Moves to the ESCAPE from the totalization menu.
  • Page 48 LD301 – Operation and Maintenance Instruction Manual Z: Moves to ESC function. S: These functions are protected by a "password." When prompted PSWD activates (S) 2 times to proceed. After entering the password, the TRIM branch starting with the Zero Trim function is accessed.

  • Page 49: Escape Local Adjustment [Esc]

    Programming Using Local adjustment Escape (ESC) Z: Moves to the ZERO TRIM function. S: Escapes to the MAIN menu. ESCAPE LOCAL ADJUSTMENT [ESC] This branch of the main tree is used to leave the Local Adjustment mode, placing the Transmitter or Controller in the monitoring mode Z: Selects the OPERATION branch.
  • Page 50 LD301 – Operation and Maintenance Instruction Manual 4.16...

  • Page 51: Maintenance Procedures

    • Power supply with inadequate voltage. • Software version not compatible between configurator and transmitter. CMD NOT IMPLEMENTED • Configurator is trying to carry out a LD301 specific command in a transmitter from another manufacturer. TRANSMITTER BUSY • Transmitter carrying out an important task, e.g., local adjustment.

  • Page 52: Diagnostic With The Transmitter

    Check if connections are according to wiring diagram. • Ω Check if there is resistance in the 250 line. • Power Supply Check output of power supply. The voltage at the LD301 terminals must be between 12 and 45 • Vdc, and ripple less than 500 mV.
  • Page 53 Check the connection (flat cable, male and female connectors). Type of Sensor Connected to the Main Board Check if the sensor connected to the main board is the one specified for the LD301 model: sensor type shall be hyper - High Performance.

  • Page 54: Disassembly Procedure

    LD301 – Operation and Maintenance Instruction Manual DISASSEMBLY PROCEDURE WARNING: Do not disassemble with power on. Figure 5.1 shows transmitter's exploded view and will help you to visualize the following: SENSOR In order to have access to the sensor (27) for cleaning purposes, the transmitter should be removed from its process connections.
  • Page 55 Maintenance Procedure Fig. 5.1 – Exploded View...

  • Page 56: Reassembly Procedure

    LD301 – Operation and Maintenance Instruction Manual Fig. 5.2 – Sensor Rotation Stopper Pull the main board out of the housing and disconnect the power supply and the sensor connectors. REASSEMBLY PROCEDURE WARNING: Do not assemble with power on. SENSOR When mounting the sensor (27), it is recommended to make use of a new set of gaskets (19 &...

  • Page 57: Electronic Circuit

    Maintenance Procedure Fig. 5.3 – Backup Ring Mounting Should the adapters (26) have been removed, it is recommended to replace gaskets (24) and to connect the adapters to the process flanges before coupling them to the sensor. Optimum torque is 2,5 Kgfm.

  • Page 58: Interchangeability

    MAINT/BACKUP/READ FROM SENSOR. RETURNING MATERIALS Should it become necessary to return the transmitter and/or configurator to SMAR, simply contact our office, informing the defective instrument's serial number, and return it to our factory. In order to speed up analysis and solution of the problem, the defective item should be returned with a description of the failure observed, with as much details as possible.

  • Page 59: Spare Parts List For Transmitter

    Maintenance Procedure SPARE PARTS LIST FOR TRANSMITTER CATEGORY POSITION CODE DESCRIPTION OF PARTS (NOTE 1) . 1/2 - 14 NPT 204-0130 HOUSING, Aluminum (NOTE 2) . M20 x 1.5 204-0131 . PG 13.5 DIN 204-0132 . 1/2 - 14 NPT 204-0133 HOUSING, 316 Stainless Steel (NOTE 2) .
  • Page 60 LD301 – Operation and Maintenance Instruction Manual MODEL SPARE PART NUMBER FOR DIFFERENTIAL, GAGE, ABSOLUTE AND HIGH STATIC PRESSURE TRANSMITTERS LD301 COD. Type and Range (1) Differential 0,125 5 kPa 20 inH Differential 0,417 50 kPa 1,67 200 inH Differential...
  • Page 61 Maintenance Procedure 204-0301- SPARE PART NUMBER FOR LEVEL SENSORS Range ............Level 0.417 ............
  • Page 62 LD301 – Operation and Maintenance Instruction Manual 5.12...

  • Page 63: Technical Characteristics

    Section 6 TECHNICAL CHARACTERISTICS Functional Specifications Process Fluid Liquid, gas or vapor. Output Signal Two-wire, 4-20 mA controlled according to NAMUR NE43 Specification and with superimposed digital communication (HART Protocol). See the figure below. Output Current 21.0 Failure 20.5 Satured 20.0 Set Range Satured...
  • Page 64 LD301 – Operation and Maintenance Instruction Manual Zero Adjustment Limits 0.9915 Calibrated span shall not be less than 0.0085 URL and shall not exceed 2 URL. Low range value shall not be below LRL. Upper range value shall not be greater than URL.

  • Page 65: Configurator

    Technical Characteristics Configurator Hand-Held Terminal Main Features (HT2) An interface and a program datapack for LD301 are necessary for communication. EPROM memory: 128 Kbytes, datapack. Display: 80 characters, 4 lines. Power supply: 9 Vdc. Dimensions(LWD): (142 x 78 x 29.3 mm).

  • Page 66: Physical Specifications

    Plated carbon steel, 316 SST, Hastelloy C276 or Monel 400. . Wetted O-Rings (For Flanges and Adapters) Buna N, Viton or PTFE. Ethylene-Propylene on request. The LD301 is available in NACE MR-01-75 compliant materials. Nonwetted Parts . Electronic Housing Injected aluminum with polyester painting or 316 SST (NEMA 4X, IP67).
  • Page 67 Technical Characteristics Control Characteristics PID. Proportional Gain: 0 to 100. Integral Time: 0.01 to 999 min/rep. Derivative Time: 0 to 999 s. Direct / Reverse Action. Lower and Upper output limits. Output rate-of-change limit: 0 to 100%/s. Power-on safety output. Antireset windup.
  • Page 68 LD301 – Operation and Maintenance Instruction Manual MODEL DIFFERENTIAL, GAGE, ABSOLUTE AND HIGH STATIC PRESSURE TRANSMITTERS LD301 COD. Type and Range (1) Differential 0.125 Differential 0.417 1.67 Differential 2.08 Differential 20.8 2500 Gage 0.125 Gage 0.417 1.67 Gage 2.08 Gage 20.8...
  • Page 69 Technical Characteristics MODEL LEVEL TRANSMITTERS LD301 COD. Range Level 1.25 Note: The upper range limit can be extended up to 1.2 Level 2.08 8.33 1000 times with a small degradation of accuracy. Level 20.8 2500 COD. Diaphragm Material and Fill Fluid (Low Side)
  • Page 70 APPENDIX A...

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