SMAR TT302 Installation, Operation & Maintenance Instruction Manual

SMAR TT302 Installation, Operation & Maintenance Instruction Manual

Fieldbus temperature transmitter
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Summary of Contents for SMAR TT302

  • Page 2 BRAZIL CHINA FRANCE GERMANY MEXICO Smar Equipamentos Ind. Ltda. Smar China Corp. Smar France S. A. R. L. Smar GmbH Smar Mexico Av. Dr. Antonio Furlan Jr., 1028 3 Baishiqiao Road, Suite 30233 1, bld de l'Oise Robert-Koch-Strasse 35 11, Poniente, No. 1314-1 PB Sertãozinho SP 14160-000...
  • Page 3: Table Of Contents

    SENSOR WIRING ..........................3.2 JUMPER ONFIGURATION......................3.2 SENSOR CONFIGURATION ......................3.3 HOW TO CONNECT TWO SENSORS TO TT302 .................3.5 COMPENSATION OF LEAD RESISTANCE FOR RTD or Ohm .............3.6 COMPENSATION OF LEAD RESISTANCE FOR RTD or Ohm Double Sensors ......3.6 CALIBRATION IN TT302 BY THE USER ..................3.6 CHANGING UNITS IN TEMPERATURE SENSORS..............3.6...
  • Page 4 FIGURE 3.10 – PARAMETERS FOR LOCAL ADJUSTMENT CONFIGURATION ......3.10 FIGURE 3.11 – PARAMETERS FOR LOCAL ADJUSTMENT CONFIGURATION ......3.11 FIGURE 3.12 – STEP 1 – TT302 .......................3.11 FIGURE 3.13 – STEP 2 – TT302 .......................3.12 FIGURE 3.14 – STEP 3 – TT302 .......................3.12 FIGURE 3.15 –...
  • Page 5: Introduction

    Introduction Introduction The TT302 is from the first generation of FIELDBUS devices. It is a transmitter mainly intended for measurement of temperature using RTDs or thermocouples, but can also accept other sensors with resistance or mV output such as: pyrometers, load cells, resistance position indicators, etc.
  • Page 6 TT302 – Fieldbus Temperature Transmitter WARNING This Manual is compatible with version 3.XX, where 3 denote software version and XX software release. The indication 3.XX means that this manual is compatible with any release of software version 3.
  • Page 7: Installation

    Section 1 Installation General The overall accuracy of temperature and other measurements depends on several variables. Although the transmitter has an outstanding performance, proper installation is essential in order to maximize its performance. Among all factors which may affect transmitter accuracy, environmental conditions are the most difficult to control.
  • Page 8: Network Wiring

    TT302 – Fieldbus Temperature Transmitter Network Wiring Access the terminal block by removing the Electrical Connection Cover. This cover can be locked closed by the cover locking screw (See Figure 1.1 - Cover Locking).To release the cover, rotate the locking screw clockwise.
  • Page 9: Figure 1.3 - Dimensional Drawing And Mounting Positions

    All devices are connected in parallel along the same pair of wires. Various types of Fieldbus devices may be connected on the same bus. The TT302 is powered via the bus. The limit for such devices is 16 for one bus for non-intrinsically safe requirement.
  • Page 10: Bus Topology And Network Configuration

    TT302 – Fieldbus Temperature Transmitter Bus Topology and Network Configuration WARNING HAZARDOUS AREAS In hazardous zones with explosion proof requirements the covers must be tightened with at least 7 turns. In order to avoid moisture or corrosive gases, hand tighten the covers until the O- rings are compressed.
  • Page 11: Figure 1.5 - Tree Topology

    Installation TT2EM105.CDR Figure 1.5 - Tree Topology...
  • Page 12 TT302 – Fieldbus Temperature Transmitter...
  • Page 13: Operation

    Section 2 Operation The TT302 accepts signals from mV generators such as thermocouples or resistive sensors such as RTDs. The criterion is that the signal is within the range of the input. For mV, the range is -50 to 500 mV and for resistance, 0-2000 Ohm.
  • Page 14: Figure 2.2 - Lcd Indicator

    TT302 – Fieldbus Temperature Transmitter (CPU) Central Processing Unit, RAM, PROM and EEPROM The CPU is the intelligent portion of the transmitter, being responsible for the management and operation of measurement, block execution, self-diagnostics and communication. The program is stored in a PROM. For temporary storage of data there is a RAM.
  • Page 15: Temperature Sensor

    Resistance Temperature Detectors, most commonly known as RTD’s, are based on the principle that the resistance of metal increases as its temperature increases. Standardized RTDs, whose tables are stored in the memory of the TT302, are the following: JIS [1604-81] (Pt50 & Pt100) IEC, DIN, JIS [1604-89] (Pt50, Pt100 &...
  • Page 16: Figure 2.3 - Two-Wire Connection

    This is particularly important at locations where the ambient temperature changes constantly. The TT302 permits a 2-wire connection that may cause measuring errors, depending on the length of connection wires and on the temperature to which they are exposed. (See Figure 2.3 - Two-Wire Connection).
  • Page 17: Figure 2.5 - Four Wire Connection

    Operation In a 4-wire connection, terminals 2 and 3 are high impedance inputs. Thus, no current flows through those wires and no voltage drop is caused. The resistance of the other two wires is not of interest, since there is no measurement registered on them. Hence the voltage V2 is directly proportional to the RTD resistance.
  • Page 18 TT302 – Fieldbus Temperature Transmitter...
  • Page 19: Configuration

    Configuration One of the many advantages of Fieldbus is that device configuration is independent of the configurator. The TT302 may be configured by a third party terminal or operator console. Any particular configurator is therefore not addressed here. The TT302 contains two input transducer blocks, one resource block, one display transducer block and other function blocks.
  • Page 20: Sensor Wiring

    TT2EM301.CDR Figure 3.1 - Sensor Wiring Jumper Configuration In order to work properly, the jumpers J1 and J3 located in the TT302 main board must be correctly configured. J1 is responsible to enable the AI block simulate mode. W1 is responsable to enable the local adjustment.
  • Page 21: Sensor Configuration

    TT2EM302.CDR Figure 3.2 - Temperature Calibration - TT302 It is possible to configure connection and sensor type by means of parameters SENSOR_TYPE and SENSOR_CONNECTION. The connection and sensor types available are listed in the tables Table 3.1 - Sensor Type Table and Table 3.2 - Type of Connection Table, as well as the corresponding value.
  • Page 22: Figure 3.4 - Temperature Calibration - Tt302

    Sensor Type chosen as described above. TT2EM304.CDR Figure 3.4 - Temperature Calibration - TT302 SENSOR_TYPE Pt 100 IEC Pt 100 JIS Pt 500 IEC Ni 120 DIN Cu 10 CE Pt 50 IEC...
  • Page 23: How To Connect Two Sensors To Tt302

    FOUR WIRE Table 3.2 - Type of Connection Table How to Connect Two Sensors Transmitter series TT302 are capable of operating simultaneously with two sensors, using two transducer blocks, if necessary. Configuration types in two sensors operation are as follows: Differential –...
  • Page 24: Compensation Of Lead Resistance For Rtd Or Ohm

    For this reason, 3 or 4 wire sensors are usually preferred. With TT302 is possible to connect two sensors to the terminal block. Due to space limitations in the terminal block, it is only possible to connect two 2-wire sensors. In order...
  • Page 25: Transducer Display - Configuration

    Configuration Transducer Display – Configuration Using the SYSCON is possible to configure the Display Transducer block. As the name described it is a transducer due the interfacing of its block with the LCD hardware. The Transducer Display is treated as a normal block by SYSCON. It means, this block has some parameters can be configured according to customer's needs.
  • Page 26: Definition Of Parameters And Values

    "Programming Using Local Adjustment". The resources on the transducer display, as well as for all the Series 302 field devices from SMAR, has the same methodology to handle with it. So, since the user has learned once, he is capable to handle all kind of field devices from SMAR.
  • Page 27: Figure 3.7 - Parameters For Local Adjustment Configuration

    Configuration Alpha_Num These parameters include two options: value and mnemonic. In option value, it is possible to display data both in the alphanumeric and in the numeric fields; this way, in the case of a data higher than 10000, it will be shown in the alphanumeric field. In option mnemonic, the display may show the data in the numeric field and the mnemonic in the alphanumeric field.
  • Page 28: Figure 3.9 - Parameters For Local Adjustment Configuration

    TT302 – Fieldbus Temperature Transmitter TT2EM309.CDR Figure 3.9 - Parameters for Local Adjustment Configuration TT2EM310.CDR Figure 3.10 - Parameters for Local Adjustment Configuration 3-10...
  • Page 29: Programming Using Local Adjustment

    Place the magnetic In order to start the tool in orifice S and local adjustment, wait during 5 place the magnetic seconds. tool in orifice Z and wait until letters MD are displayed. TT2EM312.CDR Figure 3.12 - Step 1 - TT302 3-11...
  • Page 30: Figure 3.13 - Step 2 - Tt302

    S once from orifice S. more and LOC ADJ should be displayed. TT2EM313.CDR Figure 3.13 - Step 2 - TT302 Place the magnetic tool In this option the in orifice Z. In case this first variable (P_VAL) is is the first configuration,...
  • Page 31: Figure 3.16 - Step 5 - Tt302

    S up to set the value desired. TT2EM316.CDR Figure 3.16 - Step 5 - TT302 In order to configure the In order to connection(CONN), decrement the simply insert the magnet...
  • Page 32 TT302 – Fieldbus Temperature Transmitter 3-14...
  • Page 33: Maintence Procedures

    Check if the sensor is correctly connected to the TT302 terminal block. Check if the sensor signal is reaching the TT302 terminal block by measuring it with a multimeter at the transmitter- end. For mV and thermocouples test can be done with connected and disconnected to the transmitter.
  • Page 34: Disassembly Procedure

    TT302 – Fieldbus Temperature Transmitter Disassembly Procedure Refer to Figure 4.2 - Exploded View. Make sure to disconnect the power supply before disassembling the transmitter. Sensor If the sensor is mounted on the transmitter, first disconnect the wires in order to prevent the wires from breaking.
  • Page 35: Interchangeability

    EEPROM. In the case of one board being faulty, both must be replaced. Returning Materials Should it become necessary to return the transmitter to SMAR, simply contact your local agent or SMAR office, informing the defective instrument’s serial number, and return it to our factory.
  • Page 36 TT302 – Fieldbus Temperature Transmitter SPARE PARTS LIST DESCRIPTION OF PARTS POSITION CODE HOUSING, Aluminum (NOTE 2) . ½ - 14 NPT 314-0130 . M20 x 1.5 314-0131 . PG 13.5 DIN 314-0132 HOUSING, 316 SS (NOTE 2) . ½ - 14 NPT 314-0133 .
  • Page 37 Maintenance Procedures NOTE For category A, it is recommended keep, in stock, 25 parts installed for each set, anf for category B, 50. It includes Terminal holder insulator, bolts (cover lock, grounding and terminal holder insulator) and identification plate without certification. 0-Rings are packaged in packs of 12 units.
  • Page 38 TT302 – Fieldbus Temperature Transmitter...
  • Page 39: Technical Characteristics

    Section 5 Technical Characteristics Functional Specifications Inputs Signal Options see following table. Output Signal Digital only. Foundation Fieldbus 31.25 kbit/s voltage mode with bus power. Power Supply Bus power: 9 to 32 V DC. Current consumption: quiescent 12 mA. Output impedance: non-intrinsic safety from 7.8 kHz to 39 kHz should be greater or equal to 3 kOhm.
  • Page 40: Performance Specifications

    TT302 – Fieldbus Temperature Transmitter Performance Specifications Accuracy See the following tables. Ambient Temperature Effect For a 10 ºC variation: mV (-6...22 mV), TC (NBS: B, R, S, T): ±0.03% of reading or 0.002 mV whichever is greater. mV (-10...100 mV), TC (NBS: E, J, K, N; DIN: L, U): ±0.03% of reading or 0.01 mV whichever is greater.
  • Page 41 Technical Characteristics 2, 3 or 4 WIRES DIFFERENTIAL MINIMUM ACCURACY MINIMUM ACCURACY RANGE (° ° ° ° C) RANGE (F) RANGE (° ° ° ° C) SENSOR TYPE RANGE (F) SPAN (° ° ° ° C) (° ° ° ° C) SPAN (°...
  • Page 42 TT302 – Fieldbus Temperature Transmitter MODEL TEMPERATURE TRANSMITTER TT302 CODE Local Indicator Without Indicator With Digital Indicator CODE Mounting Bracket for 2" Pipe Mounting Without Bracket Carbon Steel Bracket 316 SST Bracket CODE Electrical Connections 1/2-14 NPT M20 x 1.5 Pg 13.5 DIN...
  • Page 43 Technical Characteristics TT2EM402.CDR...
  • Page 44 TT302 – Fieldbus Temperature Transmitter...

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