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Presys TC-512-HP Technical Manual

Temperature calibrator
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PRESYS
Instruments
TEMPERATURE
CALIBRATOR
TC-512-HP
TECHNICAL MANUAL
EM0436-00

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Summary of Contents for Presys TC-512-HP

  • Page 1 PRESYS Instruments TEMPERATURE CALIBRATOR TC-512-HP TECHNICAL MANUAL EM0436-00...

  • Page 2: Important Instructions

    IMPORTANT INSTRUCTIONS:  Keep the calibrator in a dry environment whenever possible.  The fuse for the protection of the current measurement circuit, code 01.02.0277-21, is a special part. So, only replace the fuse by another original from factory.  In case of failure, always send the instrument to the factory for repair.

  • Page 3: Table Of Contents

    Table of Contents 1 - Introduction ................................1 1.1. General Description ............................. 1 1.2. Specifications - Inputs ............................2 1.3. Specifications - Outputs ............................5 2 - Operation .................................. 9 2.1. Parts Identification ............................... 9 2.2. Battery and charger ............................12 2.3.
  • Page 4 2.8.3. STEP Programming ............................ 31 2.8.4. RAMP Programming ........................... 32 2.9. Special Functions .............................. 33 2.9.1. SCALE Function ............................34 2.9.2. CAL Function .............................. 36 2.9.3. SCALE Function ............................38 2.9.4. CONV Function ............................40 2.10. MEM Command ............................... 41 2.11.

  • Page 5: Introduction

    1 - Introduction 1.1. General Description The TC-512-HP High Precision Temperature Calibrator enables measurement and generation of signals used on instrumentation and process control. Provides all features required for easier calibration and adjustment services on process instruments. It is a high-accuracy instrument, having high stability features in temperature changes and long-term aging conditions.

  • Page 6: Specifications - Inputs

    1.2. Specifications - Inputs Input Ranges Resolution Accuracy Remarks  0.005 % FS millivolt -150 mV to 150 mV 0.0001 mV > 10 M input  0.01 % FS -500 mV to -150 mV 0.001 mV auto-ranging  0.01 % FS 150 mV to 2450 mV 0.001 mV ...
  • Page 7 Input Ranges Resolution Accuracy Remarks -210 to 850 C / -328 to 1562 F 0.01 C / 0.01 F  0.1 C /  0.2 F probe* IEC-60751 -210 to 1200 C / -346 to 2192 F 0.01 C / 0.01 F 0.10 C / 0.20 F TC-J IEC-60584...
  • Page 8 TC-E -270 to -150 C / -454 to -238 F 0.01 C / 0.01 F  0.15 C /  0.30 F IEC-60584 TC-E -150 to 1000 C / -238 to 1832 F 0.01 C / 0.01 F  0.05 C /  0.10 F IEC-60584 TC-N -260 to -200 C / -436 to -328 F 0.01 C / 0.01 F...

  • Page 9: Specifications - Outputs

    1.3. Specifications - Outputs Output Ranges Resolution Accuracy Remarks  0.01 % FS < 0.3  millivolt -10 mV to 110 mV 0.0001 mV  0.02 % FS < 0.3  volt -0.5 V to 12 V 0.0001 V  0.02 % FS = 700 ...
  • Page 10 Output Ranges Resolution Accuracy Remarks TC-T -260 to -200 C / -436 to -328 F 0.01 C / 0.01 F  0.60 C /  1.20 F IEC-60584 TC-T -200 to -75 C / -328 to -103 F 0.01 C / 0.01 F ...
  • Page 11 TC-L -200 to 900 C / -328 to 1652 F  0.20 C /  0.40 F 0.01 C / 0.01 F DIN-43710 TC-C 0 to 1500 C / 32 to 2732 F  0.50 C /  1.00 F 0.01 C / 0.01 F W5Re / W26Re TC-C 1500 to 2320 C / 2732 to 4208 F...
  • Page 12 Dimensions: 91 mm x 213 mm x 44 mm (height, width and depth). Weight: 1.0 kg approx. One-year warranty. Notes: 1- TC-512-HP and ISOPLAN are Presys trade marks. 2- Changes can be introduced in the instrument, altering specifications in this manual.

  • Page 13: Operation

    2 - Operation 2.1. Parts Identification Front panel Fig. 01 - Front Panel...
  • Page 14 Left side-view panel Right side-view panel Fig. 02 - Side Panels...
  • Page 15 Ways to use the transport bag Fig. 03 - Ways to use the transport bag Accessories: The bag has two compartments; one is used to house the calibrator and the other is used to keep several accessories such as probes, adaptor to connect thermocouple wires, spare fuse, straps for transport and use in the field, and also the technical manual.

  • Page 16: Battery And Charger

    Optional Items: the following items are optional, including the precision temperature sensor (Probe), the high precision external cold junction compensation block, RS-232/485 interface and the calibration software. The optional items are described in specific manuals. 2.2. Battery and charger The calibrator is supplied with a rechargeable battery which enables up to 8 hours. This autonomy is reduced when the current output or the 24 V power supply for transmitters.
  • Page 17 After the self-test is completed, the display shows the starting menu:  IN EXEC CONF IN / OUT - selects the input/output functions ADJ - selects functions which adjust the calibrator itself (see chapter on Adjustment). Do not enter in ADJ option before reading the warning in section 3 on adjustment. COM - Refers to the communication with the computer, described in an appropriate manual.
  • Page 18 DATE updates the internal date and time of the calibrator. Thus, when it performs a calibration previously programmed by the ISOPLAN software, calibration data is recorded together with their date and time of occurrence. Whenever the calibrator is turned off, these data are not updated any longer. Thus, if you want the date and time to be recorded together with the calibration, one should update these data either by means of the keyboard or automatically via the ISOPLAN software.

  • Page 19: Measurement Or Input Functions

    2.4. Measurement or input functions Select the type of the signal to be measured by using the menus and use the corresponding terminals: Selects the input function and the ENTER key should be pressed.  V Press ENTER to select volt measurement; press , ,  and  to select another signal. IN = x.xxxx V Display indicates volt input.
  • Page 20 For RTD (thermoresistance), you must select the type and connection for the 2-, 3- or 4-wire options. The input in contact (SW) serves to measure the continuity of an external circuit connected to the calibrator RTD1 and RTD4 inputs. When there is continuity, the input indicates CLOSED; otherwise, OPEN is indicated. Its most important application is when it is used together with the calibrator output with the purpose of detecting the setpoint of the alarm trigger of an instrument.
  • Page 21 The OP option refers to the temperature optional module and belongs to both the calibrator input (IN) and output (OUT). Pressing ENTER after selecting OP takes to the sub-menu:  Probe Probe is related to temperature measurement with an optional 4-wire Pt100 probe. When using the Probe, temperatures ranging from –...
  • Page 22 b) Input or measurement connections Fig. 04 - Input Connections...
  • Page 23 Fig. 04 - (Cont.) Input Connections...
  • Page 24 c) Probe Connection (optional) Connect the Probe to calibrator so that polarity identification (white mark) coincide. Refer to figure below. Fig. 05 – Probe Connection...
  • Page 25 d) High accuracy external cold junction compensation block connection – CJCB (optional) Insert the high precision block in the TC input (IN) or TC output (OUT) terminals, and connect the cable which comes out of the block to calibrator Probe connector according to the same polarity described in item c) above. Depending on the block insertion in the TC input or in the TC output, the thermocouple connection will have its input or output cold junction given by the external compensation block.

  • Page 26: Generation Or Output Functions

    For an effective input or output cold junction measurement with the block, Probe option of thermocouple cold junction must be selected and enabled. Select Probe and press ENTER. 2.5. Generation or output functions Select through the menus the type of signal to be generated and use the corresponding terminals: a) OUT Selects the output functions.
  • Page 27 temperature controllers, with an excitation current within the range of 150 µA to 5 mA. For the OHM generations, you should choose between the range of 400  and 2500 . For the thermocouple generation, you should choose the type of thermocouple and the type of cold junction compensation.
  • Page 28 b) Output or generation connections Fig. 07 - Output Connection...
  • Page 29 Fig. 07 - (Cont.) Output Connection...

  • Page 30: Available Power Supplies

    2.6. Available power supplies The calibrator has two power supplies galvanically isolated: TPS and +24 Vdc at the output, both provided with short-circuit protection (current limited to 30 mA). Fig. 08 - Power Supplies...

  • Page 31: Calibration Examples

    2.7. Calibration examples a) Calibration of a temperature transmitter with RTD input and 4-20 mA output. Through the menus, the calibrator is configured for mA input and RTD output. TPS, which stands for Transmitter Power Supply, is a 24 Vdc power supply (rated voltage, which may vary depending on the load) which feeds power to transmitter.
  • Page 32 Fig. 09 - Calibration of a temperature transmitter with RTD 3-wire input.
  • Page 33 b) Calibration of a four-wire temperature transmitter with thermocouple input (TC) and 1-5 Vdc output. Is configured for volt input and TC output (the type of TC should be selected). For the cold junction compensation, you may use the TC compensation wires to set up the connection between the transmitter and the calibrator and program the option for automatic cold junction (Internal), or you may measure the temperature of the transmitter terminal set and then enter this value into the calibrator Manual option, thus avoiding the use of compensation wires.

  • Page 34: Special Programming

    2.8. Special Programming When PRG is selected, the display will show:  INPUT OUTPUT This option allows you to select a number of special programming features for INPUT or OUTPUT. INPUT is provided with FILTER and DECIMAL options. OUTPUT is provided with STEP and RAMP options. 2.8.1.

  • Page 35: Step Programming

    2.8.3. STEP Programming The STEP programming makes the calibrator output vary in pre-defined steps. It is useful in calibrations where some scale points are verified; for example 0% - 25% - 50% - 75% - 100%. The output type must be previously configured, otherwise the Select OUTPUT first message is shown. In this case, press C/CE to go back to the main menu in order to select the input type.

  • Page 36: Ramp Programming

    2.8.4. RAMP Programming By using this programming, the calibrator output varies automatically, thus producing ramps and level marks which may be programmed to actuate once or continuously. The output type must be previously configured, otherwise the Select OUTPUT first message is shown. In this case, press C/CE to go back to the main menu in order to select the input type.

  • Page 37: Special Functions

    2.9. Special Functions Selecting FN the display will show:  INPUT OUTPUT With these options, you may select special functions related to the INPUT or the OUTPUT. INPUT has the SCALE, CAL and NO options. The input type must be previously configured, otherwise the Select INPUT first message is shown. In this case, press C/CE to go back to the main menu in order to select the input type.

  • Page 38: Scale Function

    2.9.1. SCALE Function It estabilishes a linear relationship between the calibrator input signal and what is shown at the display, according to the graphic below. ³ The scaled indication at the display (#) may represent any engineering unit, such as: m/s, m /s, %, etc.
  • Page 39 The number of decimals, up to 4, shown at the display may be configured by using parameter Scale Dec. The value for Input High must be necessarily higher than Input Low. On the other hand, Scale High and Scale Low may have any relationship between themselves: higher than, lower than or equal to, and they may have a signal before them.

  • Page 40: Cal Function

    2.9.2. CAL Function The calibrator may be used to calibrate or adjust any transmitter type. In a typical application, it would generate a thermoresistance signal and would measure the output signal in the current input. Due to reasons of quickness and easiness to compare errors at the input and output of the transmitter, the reading of the calibrator current input may be displayed with the same unit of the generated signal, that is, units of temperature.
  • Page 41 Note that when the CAL function is active, the display will indicate CAL instead of IN as illustrated as follows: CAL = 500.23 °C OUT = 500.00 °C To disable the SCALE or CAL functions, simply select the NO option from the menu below and press ENTER.

  • Page 42: Scale Function

    2.9.3. SCALE Function The scaling of the calibrator output allows it to simulate the functioning of a transmitter. Transmitter input is made directly by keyboard, and one can get any signal generated by the calibrator as the output signal. SCALE output function relates the output signal generated by the calibrator to the value shown on display, according to the figure below: ³...
  • Page 43 Scale Dec parameter configures the number of decimals presented at the display. The value of Output High must always be higher than Output Low. Scale Low and Scale High parameters may have any relationship between them, provided that they are different. Thus direct or reverse relationships may be established.

  • Page 44: Conv Function

    2.9.4. CONV Function By using the CONV function, the calibrator may convert any input signal into any output signal with galvanic isolation. It may therefore behave as a real transmitter. Once the calibrator input and output have been selected, you must fill in the four parameters shown in the graphic below.

  • Page 45: Mem Command

    SCALE and CONV functions may be disabled by selecting the NO option and pressing ENTER, as shown below:  NO SCALE CONV 2.10. MEM Command The calibrator accepts a great amount of programmations and special functions that can be often used. In this case, storage of these configurations in the calibrator saves time.

  • Page 46: Warning Messages

    Any new configuration can be written over an already used memory location. When you want to clear all eight memory locations, select CLEAR ALL and press ENTER. 2.11. Warning Messages Warning Meaning Procedure RAM ERROR Problem in Turn the calibrator off and on. If the READ MANUAL RAM memory error persists, send the instrument...

  • Page 47: Adjustment

    3 - Adjustment Warning: Enter the following options only after understanding them completely. Otherwise, it may be necessary to return the instrument to the factory for readjustment. Select ADJ option from the main menu and press the ENTER key. You should then enter the PASSWORD 9875 to access the adjustment menu.

  • Page 48: Input Adjustment (In)

    Simply note that the thermocouples will only be adjustment after the mV and cold junction (CJC) adjustment have been performed. Only in case of OHM or RTD, you have to perform the mV adjustment first. 3.1. Input adjustment (IN) Select the corresponding mnemonic and apply the signals presented in the tables below. When adjusting inputs, the display shows on the 2 line the value measured by and on the first line the same value is expressed as a percentage.
  • Page 49 Input adjustment for  is performed in two steps: a) Application of mV signal: For the adjustment below, leave terminals RTD3(+) and RTD4(+) short-circuited mV Signal Terminals point point V_OHM3 RTD3(+) and GND IN (-) 90.000 mV 120.000 mV V_OHM4 RTD4(+) and GND IN (-) 90.000 mV 120.000 mV...

  • Page 50: Output Adjustment (Out)

    3.2. Output adjustment (OUT) The output adjustment (except for CJC and Probe) is performed in STEPS. For each STEP the calibrator outputs a signal of the same type selected which must be measured and stored. It is also possible to make a simple verification in the last two STEPS of each selected range, further details will be given below.
  • Page 51 The adjustment of these ranges comprises 5 steps. In steps STEP1 to STEP3, the signals are output and should be measured and stored, by pressing “ENTER”. In steps STEP4 and STEP5, signals are output only for verification purpose and no values are stored. The verification points are listed in the table below. STEP 4 STEP 5 0.00000 V...
  • Page 52 press “ENTER”. After that the adjustment continues. Steps 5 and 6 output signals are only for verification purpose and no values are stored. STEP 9 STEP 10 400  0.00  400.00  2500  0.0  2500.0  Probe adjustment Firstly identify the connector pins for Probe input according to the figure below.
  • Page 53 The PROBE adjustment is performed in two steps: a) Application of mV signal: mV Signal Terminals Bornes point point RTD2(+)* GND OUT (-) 100.000mV 120.000 mV RTD2(+)* GND OUT (-) 120.000mV 600.00 mV (*) RTD2, for PROBE adjustment, refers to the drawing shown above. b) Application of standard resistors: Connect a decade box or standard resistor to the probe connector, at positions RTD1, RTD2, RTD3 and RTD4, as shown above.

  • Page 54: Maintenance

    4 - Maintenance 4.1. Battery pack replacement To have access to the battery pack of the calibrator, do as follows: 1) Remove the support; 2) Remove the four screws of the left side panel; 3) Pull the battery pack outwards (see figure 18); 4) Disconnect the connector;...

  • Page 55: Input Current Fuse Substitution

    4.2. Input current fuse substitution To have access to the current fuse of the calibrator, do as follows: 1) Remove the support; 2) Remove the four screws of the left side panel and the four screws of the right side panel; 3) It is not necessary to open the instrument 180 degrees.

  • Page 56: Notes

    Notes  Adjusting procedures for this calibrator must be performed under the reference conditions of temperature and humidity.  Better calibration results are achieved if warm-up time is at least two hours and if the battery charger remains disconnected from the calibrator since one hour before its usage. ...
  • Page 57 Presys Presys | Instruments Inc. www.presys.com.br...