SMAR LD302 Instruction Manual
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SMAR LD302 Instruction Manual

Pressure, level and flow transmitter
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Summary of Contents for SMAR LD302

  • Page 3 The LD302 is available as a product of its own, but also replaces the circuit board for the LD301. They both use the same sensor board. Refer to the maintenance section of this manual for instructions on upgrading.
  • Page 4 Smar provides specific training to instruct and qualify such professionals. However, each country must comply with the local safety procedures,...

  • Page 5: Table Of Contents

    PRESSURE TRANSMITTER BLOCK PARAMETER ATTRIBUTES ..................3.3 HOW TO CONFIGURE A TRANSDUCER BLOCK ....................3.4 LOWER AND UPPER TRIM ............................3.5 PRESSURE TRIM - LD302 ............................3.6 THROUGH LOCAL ADJUSTMENT .......................... 3.8 CHARACTERIZATION TRIM ............................ 3.8 SENSOR INFORMATION ............................3.10 TEMPERATURE TRIM ............................
  • Page 6 LD302 - Operation and Maintenance Instruction Manual APPENDIX B – SRF – SERVICE REQUEST FORM................. B.1...

  • Page 7: Section 1 - Installation

    There are, however, ways of reducing the effects of temperature, humidity and vibration. The LD302 has a built-in temperature sensor to compensate for temperature variations. At the factory, each transmitter is submitted to a temperature cycle process, and the characteristics under different pressures and temperatures are recorded in the transmitter memory.
  • Page 8 LD302 - Operation and Maintenance Instruction Manual The pipes should be internally cleaned by using steam or compressed air, or by draining the line with the process fluid, before such lines are connected to the transmitter (blow-down). Do not allow steam in the measuring chamber.
  • Page 9 Installation Figure 1.1 (b) – Dimensional Drawing and Mounting Position - Flanged Pressure Transmitter with Integral Flange...
  • Page 10 LD302 - Operation and Maintenance Instruction Manual Figure 1.1 (c) – Dimensional Drawing and Mounting Position - Flanged Pressure Transmitter with Slip-on Flange...
  • Page 11 Installation Figure 1.1 (d) – Dimensional Drawing and Mounting Position - Flanged Pressure Transmitter with Housing...
  • Page 12 LD302 - Operation and Maintenance Instruction Manual Figure 1.1 (e) – Dimensional Drawing and Mounting Position - Sanitary Transmitter without Extension...
  • Page 13 Installation Figure 1.1 (f) – Dimensional Drawing and Mounting Position - Sanitary Transmitter with Extension...
  • Page 14 Table 1.1 - Location of Pressure Taps WALL OR PANEL MOUNTING (See section 5 – spare parts list for mounting brackets available) Figure 1.2 - Dimensional Drawing and Mounting Position for LD302 Figure 1.3 - Position of the Transmitter and Taps...

  • Page 15: Housing Rotation

    Installation NOTE Except for dry gases, all impulse lines should slope at the ratio 1:10, in order to avoid trapping bubbles in the case of liquids, or condensation from steam or wet gases. Housing Rotation The housing can be rotated in order to get the digital display in better position. To rotate it, releases the Housing Rotation Set Screw see Figure 1.4.
  • Page 16 LD302 - Operation and Maintenance Instruction Manual Figure 1.6 - Terminal Block NOTE Please refer to the General Installation, Operation and Maintenance Manual for more details. The Figure 1.7 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 17: Bus And Tree Topology And Network Configuration

    Many types of Fieldbus devices may be connected on the same bus. The LD302 is powered via the bus. The limit for such devices is 16 for one bus for non-intrinsically safe requirement. In hazardous area, the number of devices may be limited by intrinsically safe restrictions.

  • Page 18: Installation In Hazardous Areas

    LD302 - Operation and Maintenance Instruction Manual Figure 1.9 - Bus Topology Figure 1.10 -Tree Topology Installation in Hazardous Areas Consult the Appendix A for Hazardous Location Approvals. 1.12...

  • Page 19: Functional Description - Sensor

    Section 2 OPERATION The LD302 Series Pressure Transmitters use capacitive sensors (capacitive cells) as pressure sensing elements, as shown in Figure 2.1. This is the same sensor that is used in the LD301 series, the sensor modules are therefore interchangeable.

  • Page 20: Functional Description - Electronics

    Functional Description – Electronics Refer to the block diagram Figure 2.2 - LD302 Block Diagram Hardware. The function of each block is described below. Figure 2.2 - LD302 Block Diagram Hardware Oscillator This oscillator generates a frequency as a function of sensor capacitance.

  • Page 21: The Display

    Operation Fieldbus Modem Monitors line activity, modulates and demodulates communication signals, inserts and deletes start and end delimiters, and checks integrity of frame received. Power Supply Takes power from the loop-line to power the transmitter circuitry. Power Isolation Isolates the signals from the input section, the power to the input section must be isolated. Display Controller Receives data from the CPU, identifying which segments on the liquid crystal Display to turn on.
  • Page 22 LD302 - Operation and Maintenance Instruction Manual...

  • Page 23: Transducer Block

    One of the many advantages of Fieldbus is that device configuration does not depend on the configurator since the technology works with device descriptions and the interoperability concepts. The LD302 may be configured from a third party terminal or an operator console. A particular configurator is therefore not addressed here.
  • Page 24 LD302 – Operation and Maintenance Instruction Manual Parameter Description The method of last sensor calibration. ISO defines several standard methods of SENSOR_CAL_METHOD calibration. This parameter is intended to record that method, or if some other method was used. The location of last sensor calibration. This describes the physical location at SENSOR_CAL_LOC which the calibration was performed.
  • Page 25 Configuration Parameter Description MAXIMUM_OFFSET_DEVIATION Defines the maximum offset before an alarm is generate MAXIMUM_GAIN_DEVIATION Defines the maximum gain before an alarm is generate OVERPRESSURE_LIMIT Defines the maximum overpressure limit before an alarm is generate MAXIMUM_NUMBER_OF_OVERPRESSURE Defines the maximum number of overpressure before an alarm is generate Table 3.1 –...
  • Page 26 LD302 – Operation and Maintenance Instruction Manual Rel. Obj. Initial/Default Parameter Data Type Storage Size Valid Range Units Class View Index Type Value BACKUP_RESTORE Unsigned8 None none SENSOR_RANGE_CODE Unsigned16 none ± INF COEFF_POL0 Float none ± INF COEFF_POL1 Float none ±...

  • Page 27: Lower And Upper Trim

    The TRIM is used to match the reading with the applied pressure. There are two types of trim available: Lower Trim: It is used to trim the reading at the lower range. The operator informs the LD302 of the correct reading for the applied pressure. The most common discrepancy is the lower reading.

  • Page 28: Pressure Trim - Ld302

    After the selection this key should be pressed to complete the operation Figure 3.2 - LD302 SYSCON - Transducer Configuration Screen The following engineering unit's codes are defined for pressure according to Fieldbus Foundation  standard: UNIT CODES to 68°F...
  • Page 29 Figure 3.3 - LD302 SYSCON - Transducer Configuration Screen Let’s take the upper value as an example: Apply the input to the upper value of 5,000mmH2O of pressure and wait for the readout of the parameter PRIMARY_VALUE to stabilize.

  • Page 30: Through Local Adjustment

    LD302 – Operation and Maintenance Instruction Manual WARNING It is recommended that a convenient engineering unit be chosen through the XD_SCALE parameter of the Analog Input Block, considering that the range limits of the sensor must be respected. (100% and 0%).
  • Page 31 The Figure 3.5 shows the SYSCON window to characterize a new curve. Note that CURVE_Y indicates the applied pressure according to the standard pressure source. CURVE_X indicates measured pressure value to LD302. The number of points is configured in the parameter CURVE_LENGTH, being in the maximum of 5 points.

  • Page 32: Sensor Information

    LD302 – Operation and Maintenance Instruction Manual By the list box the user This parameter can enable or disable activates or the Characterization deactivates the Curve, enter the points, Characterization restore or backup the Curve after the curve entered. This...

  • Page 33: Temperature Trim

    Sensor Data Reading When the transmitter LD302 is on, it is verified that the serial number of the sensor in the sensor board is the same as the recorded serial number in the E2PROM in the main board. When these numbers are different (a swap of sensor set or main board was carried through) the data stored in the E2PROM of the sensor board is copied to the E2PROM of the main board.

  • Page 34: Transducer Display - Configuration

    LD302 – Operation and Maintenance Instruction Manual By selecting the This parameter is options contained in used to save or the list box, restore the default operations of factory or user backup and restore configuration data in the sensor stored at the module can be sensor module.

  • Page 35: Display Transducer Block

    "Programming Using Local Adjustment". The resources on this transducer display as well as all of the Series 302 Field Devices from Smar, have the same methodology. Once trained, the user can handle any kind of field devices from Smar. All function block and transducers defined according to F...
  • Page 36 LD302 – Operation and Maintenance Instruction Manual DataType Valid Range/ Default Parameter Units Store Description (length) Options Value These parameters include two options: value and mnemonic. In option value it is possible to display data both in the ALPHA_NUM Unsigned8...
  • Page 37 Configuration Figure 3.13 - Parameters for Local Adjustment Configuration Figure 3.14 - Parameters for Local Adjustment Configuration 3.15...

  • Page 38: Programming Using Local Adjustment

    LD302 – Operation and Maintenance Instruction Manual This parameter The option "update updates the local display" should be adjustment selected in order to programming tree execute the upgrade of configured on each local adjustment device. programming tree. After this step, all the...

  • Page 39: J1 Jumper Connections

    Configuration Figure 3.16 - Local Adjustment Holes Table 3.4 shows the actions on the Z and S holes on the LD302 when Local Adjustment is enabled. HOLE ACTION Initializes and rotates through the available functions. Selects the function shown in the display.
  • Page 40 LD302 – Operation and Maintenance Instruction Manual In order to start the Place the local adjustment, magnetic tool in place the magnetic orifice S and tool in orifice Z and wait for 5 wait until letters MD seconds. are displayed.
  • Page 41 S, it is possible to decrement the lower value. Figure 3.21 - Step 4 - LD302 In order to calibrate the upper value(UPPER), insert In order to the magnetic tool in orifice S...
  • Page 42 LD302 – Operation and Maintenance Instruction Manual 3.20...

  • Page 43: Section 4 - Maintenance Procedures

    It should be grounded at one end only. * Power Supply Check power supply output. The voltage must be between 9 - 32 VDC at the LD302 terminals. Noise and ripple should be within the following limits: a) 16 mV peak to peak from 7.8 to 39 KHz.

  • Page 44: Disassembly Procedure

    LD302 - Operation and Maintenance Instruction Manual If the problem is not stated in the table above, follow the Note below: NOTE The Factory Init should be tried as a last option to recover the equipment control when the equipment presents some problem related to the function blocks or the communication.

  • Page 45: Electronic Circuit

    Maintenance Procedures To remove the sensor from the electronic housing, the electrical connections (in the field terminal side) and the main board connector must be disconnected. Loosen the hex screw (20) and carefully unscrew the electronic housing from the sensor, observing that the flat cable is not excessively twisted.

  • Page 46: Electronic Circuit

    Electronic Circuit Plug sensor connector and power supply connector to main board. Attach the display to the main board. Observe the four possible mounting positions. The SMAR mark indicates the up position. Figure 4.2 - Four Possible Positions of the Display Anchor the main board and display with their screws (3).

  • Page 47: Interchangeability

    The sensor and housing of the LD301 is exactly the same as the LD302. By changing the circuit board of the LD301 it becomes a LD302. The display on the LD301 version 5.XX is the same as on LD302 and can therefore be used with the LD302 upgrade circuit board. With an LD301 version three or earlier, that display cannot be used.
  • Page 48 LD302 - Operation and Maintenance Instruction Manual Figure 4.4 - Exploded View...
  • Page 49 Maintenance Procedures ACCESSORIES ORDERING CODE DESCRIPTION Magnetic Tool for Local Adjustment Fieldbus/RS232 Interface SYSCON System Configurator PS302 Power Supply BT302 Terminator Process Control Interface SPARE PARTS LIST CATEGORY DESCRIPTION OF PARTS POSITION CODE (NOTE 1) HOUSING, Aluminum (NOTE 2) ½ - 14 NPT 304-0130 M20 x 1.5 304-0131...
  • Page 50 LD302 - Operation and Maintenance Instruction Manual Stainless Steel 316 204-1102 ADAPTER Plated Carbon Steel 203-0601 Stainless Steel 316 203-0602 Hastelloy C276 203-0603 Monel 400 203-0604 O’RINGS (NOTE 3) Cover, Buna-N 204-0122 Neck, Buna-N 204-0113 O’RINGS (NOTE 3) Flange, BUNA-N...

  • Page 51: Smar Insulator Kit

    Hydrogen to the diaphragm of the Remote Seal or of the Level Transmitter. The figure 6.3 shows the following parts that constitute the Smar Insulator Kit: Teflon Gasket (6), Nonmetallic Insulating Sleeve (4), Mica Washers (3) and Steel Washers (2).
  • Page 52 LD302 - Operation and Maintenance Instruction Manual Bolt Steel Washer Mica Washer Nonmetallic Isolating Sleeve Sealed Flange Sealing Gasket in Teflon Process Flange Nuts Figure 4.5 – Insulator Kit Mounting 4.10...
  • Page 53 Maintenance Procedures INSULATOR KIT SPARE PARTS: LD300L MODELS WITHOUT MODELS WITH EXTENSION EXTENSION ØN GROUP NORM LD300L / SR301T LD300L / SR301E 400-0861-11X01 400-0861-11X11 1” 400-0861-12X01 400-0861-12X11 400-0861-13X01 400-0861-13X11 400-0861-21X01 400-0861-21X11 1.1/2” 400-0861-22X01 400-0861-22X11 400-0861-23X01 400-0861-23X11 400-0861-31X01 400-0861-31X11 2” 400-0861-32X01 400-0861-32X11 400-0861-33X01 400-0861-33X11...
  • Page 54 LD302 - Operation and Maintenance Instruction Manual SPARE PARTS: LD300L DRAIN GASKET VALVE ØN GROUP NORM STAINLESS TEFLON COPPER GRAFOIL STEEL 316L 400- 1” 0425 400-0426 400-0427 400- 1.1/2” 400-0429 400-0430 0428 400- 2” 400-0432 400-0433 0431 400- 3” 400-0435 400-0436...
  • Page 55 Maintenance Procedures RTJ SPARE PARTS: LD300L (without Extension) DRAIN METALLIC RING VALVE ØN GROUP NORM RING STAINLESS STAINLESS STEEL 316L STEEL 316L 400-0887 400-0888 1” 400-0888 1500 400-0888 2500 400-0889 400-0890 400-0891 1.1/2” 400-0891 1500 400-0891 2500 400-0893 400-0792 ANSI B 16.20 RTJ 400-0892 400-0893 2”...

  • Page 56: Application With Halar

    LD302 - Operation and Maintenance Instruction Manual METALLIC RING ø CLASS NORM Ring 316L SST 1500 400-0899 3” 2500 400-0898 ANSI B 16.20 RTJ 1500 400-0903 4” 2500 400-0902 Table 4.5 - LD300L – Special models for Gasket in Steel – Without Extension...
  • Page 57 Maintenance Procedures Figure 4.8 – TPE Software Screen 4.15...

  • Page 58: Ordering Code For The Sensor

    LD302 - Operation and Maintenance Instruction Manual Ordering Code for the Sensor 204 – 0301 SENSOR FOR DIFFERENTIAL , FLOW, GAGE, ABSOLUTE AND HIGH STATIC PRESSURE TRANSMITTER Range Limits Range Limits Min. Min. COD Type Unit Unit Span Span Min.
  • Page 59 Maintenance Procedures 204-0301 SENSOR FOR FLANGED PRESSURE TRANSMITTER Range Limits Range limits Min. COD. Min. Span Unit Unit Span Min. Max. Min. Max. Note: The range can be extended up to 0.75 LRL and 1.2 URL with small degradation of accuracy. The upper 1.25 -200 0,42...
  • Page 60 LD302 - Operation and Maintenance Instruction Manual 204-0301 SENSOR FOR FLANGED PRESSURE TRANSMITTER (CONTINUATION) CODE Flanges Bolts and Nuts Material Plated Carbon Steel (Default) (16) Hastelloy C276 316 SST Carbon Steel (ASTM A193 B7M) (1) (16) Flange thread for fixing accessories (adapters, manifolds, mounting brackets, etc) CODE 7/16”...
  • Page 61 Maintenance Procedures 204-0301 SENSOR FOR SANITARY PRESSURE TRANSMITTER Range Limits Range Limits Min. COD. Min. Span Unit Unit Span Min. Max. Min. Max. Note: The range can be extended up to 0.75 LRL and 1.2 URL with small degradation of accuracy. The upper 1.25 -200 0,42...
  • Page 62 LD302 - Operation and Maintenance Instruction Manual 204-0301 SENSOR FOR SANITARY PRESSURE TRANSMITTER (CONTINUATION) CODE Flanges Bolts and Nuts Material Plated Carbon Steel (Default) 13) Hastelloy C276 316 SST Carbon Steel (ASTM A193 B7M) (1) (13) Flange thread for fixing accessories (adapters, manifolds, mounting brackets, etc) CODE 7/16”...

  • Page 63: Section 5 - Technical Characteristic

    Field Device Ex n1 IIC T4 (FM, CSA, NEMKO, EXAM, CEPEL) Authorized representative in European Community Smar Gmbh-Rheingaustrasse 9-55545 Bad Kreuzanach PED Directive (97/23/EC) – Pressure Equipment Directive This product is in compliance with the directive and it was designed and manufactured in accordance with sound engineering practice using several standards from ANSI, ASTM, DIN and JIS.
  • Page 64 LD302 – Operation and Maintenance Instruction Manual Functional Specifications From 3.45 kPa abs. (0.5 psia)* to: 70 psi (5 bar) for range 0 1200 psi (80 bar) for range 1 2300 psi (160 bar) for ranges 2, 3 and 4...
  • Page 65 Technical Characteristics Functional Specifications Maximum Temperature Allowed Material Pressure -29 to Group Class Maximum Pressure Allowed (bar) 19.5 17.7 15.8 13.8 12.1 10.2 51.7 51.7 50.7 45.9 42.7 40.5 38.9 38.2 37.6 S31803 68.9 68.9 67.5 61.2 56.9 53.9 51.8 50.9 50.2 Duplex...
  • Page 66 Complies with NEMA 4X/6P, IP66 or IP66W*, IP68 or IP68W*. *The IP66/68W sealing test (immersion) was performed at 1 bar for 24 hours. For any other situation, please consult Smar. IP66/68W tested for 200h to according NBR 8094 / ASTM B 117 standards.
  • Page 67 Technical Characteristics Blank Flange: When flange adapter and Drain/Vent material is carbon steel, blank flange is in carbon steel, otherwise blank flange is in 316 SST-CF8M (ASTM - A351) Level Flange (LD302L): 316 L SST, 304 SST, Hastelloy C276 and Plated Carbon Steel Fill Fluid: Silicone, Fluorolube, Krytox, Halocarbon 4.2 or Fomblim oils Cover O-Rings:...
  • Page 68 Monel is a trademark of International Nckel Co. Foundation is a trademark of Fieldbus Foundation. Viton and Teflon are trademarks of E. I. DuPunt de Nemours & Co. Smar Pressure Transmitters are protected by US patent number 6,433,791 Fluorolube is a trademark of Hooker Chemical Corp.

  • Page 69: Ordering Code

    Technical Characteristics Ordering Code MODEL DIFFERENTIAL , FLOW, GAGE, ABSOLUTE AND HIGH STATIC PRESSURE TRANSMITTER LD302 fieldbus OUNDATION Range Limits Range Limits Min. Min. COD. Type Unit Unit Span Span Min. Max. Min. Max. Differential and Flow 0.05 0,05 NOTE: The range can be extended up to 0.75 LRL* and Differential and Flow 0.13...
  • Page 70 LD302 – Operation and Maintenance Instruction Manual Notes ( 1 ) Meets NACE MR – 01 – 75/ISO 15156 recommendations. (11) O’Ring should be Viton or Kalrez. ( 2 ) Not available for absolute models nor vacuum applications. (12) Not available for range 0.
  • Page 71 Technical Characteristics MODEL FLANGED PRESSURE TRANSMITTERS LD302 F fieldbus OUNDATION Range Limits Range limits Min. COD. Unit Min. Span Unit Span Min. Max. Min. Max. Note: The range can be extended up to 0.75 LRL and 1.2 URL with small degradation of accuracy.
  • Page 72 LD302 – Operation and Maintenance Instruction Manual FLANGED PRESSURE TRANSMITTERS (CONTINUATION) LD302 COD. Flanges Bolts and Nuts Material Plated Carbon Steel (Default) (20) Carbon Steel (ASTM A193 B7M) (1) (20) 316 SST Hastelloy C276 COD Flange Thread for Fixing Accessories (Adapters, Manifolds, Mounting Brackets, etc) 7/16”...
  • Page 73 Technical Characteristics MODEL SANITARY PRESSURE TRANSMITTERS LD302 F fieldbus OUNDATION CODE Range Limits Range Limits Min. Span Unit Min. Span Unit Min. Max. Min. Max. 1.25 -200 0,42 Note: The range can be extended up to 0.75 LRL and 1.2 URL with small -250 2.08...
  • Page 74 LD302 – Operation and Maintenance Instruction Manual SANITARY PRESSURE TRANSMITTERS (CONTINUATION) LD302 CODE Flange Bolts and Nuts Material Plated Carbon Steel (Default) (15) Carbon Steel (ASTM A193 B7M) (1) (15) 316 SST Hastelloy C276 CODE Flange Thread for Fixing Accessories (Adapters, Manifolds, Mounting Brackets, etc) 7/16”...

  • Page 75: Appendix A - Certifications Information

    Consult www.Smar.com for the EC declarations of conformity and certificates. Authorized representative/importer located within the Community: Smar Europe BV De Oude Wereld 116 2408 TM Alphen aan den Rijn Netherlands ATEX Directive 2014/34//EU - "Equipment for explosive atmospheres” (applicable from 20 April 2016) The EC-Type Examination Certificate is released by DNV GL Presafe AS (CE2460) and DEKRA EXAM GmbH (CE0158).
  • Page 76 Maintenance and Repair The instrument modification or replaced parts supplied by any other supplier than authorized representative of Smar is prohibited and will void the Certification. Marking Label The instrument is marked with type of protection options. The certification is valid only when the type of protection is indicated by the user.
  • Page 77 Appendix A Options: IP66/68W or IP66/68 Special Conditions for Safe Use Repairs of the flameproof joints must be made in compliance with the structural specifications provided by the manufacturer. Repairs must not be made on the basis of values specified in tables 1 and 2 of EN/IEC 60079-1. The Essential Health and Safety Requirements are assured by compliance with: EN IEC 60079-0:2018 General Requirements EN 60079-1:2014 Flameproof Enclosures “d”...
  • Page 78 O número do certificado é finalizado pela letra "X" para indicar que para a versão do Transmissor de pressão, intrinsecamente seguro, modelos LD292, LD293, LD302 e LD303 equipado com invólucro fabricado em liga de alumínio, somente pode ser instalado em "Zona 0", se durante a instalação for excluído o risco de ocorrer impacto ou fricção entre o invólucro e peças de ferro/aço.
  • Page 79 Appendix A Identification Plates FM Approvals DNV GL Presafe A/S / DEKRA Testing and Certification GmbH...
  • Page 80 LD302 - Certifications Information CEPEL (Centro de Pesquisa de Energia Elétrica)
  • Page 81 Appendix A FM Approvals...
  • Page 82 LD302 – Certifications Information...
  • Page 83 E-mail: Date: Signature: For warranty or non-warranty repair, please contact your representative. Further information about address and contacts can be found on www.smar.com/contactus.asp. NOTE ® (1) This field should be filled out by the Smar. (3) Required for Wireless HART devices.
  • Page 84 LD303 – Operation and Maintenance Instruction Manual...

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