Presys T-1200PH Technical Manual

Dry block calibrator

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Dry Block Calibrator
T-1200PH
Technical Manual
EM0354-00

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Table of Contents
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Summary of Contents for Presys T-1200PH

  • Page 1 Dry Block Calibrator T-1200PH Technical Manual EM0354-00...
  • Page 3 WARNING! Avoid electric shock risk when touching the equipment: - Use only suitable power cable with earth connection; - Never power the equipment to the mains socket with no earth connection. WARNING! High voltage is present inside this equipment. It can cause great damages and injuries. Do not make any repair service inside the equipment without removing the plug from the supply.
  • Page 4 CAUTION! Before first use, after transportation and whenever the dry block is not used within a 10-day period, the instrument should be heated to 600 °C for 1 or 2 hours. CAUTION! This equipment contains ceramic fiber components. Persons in direct contact with surch materials should take preventive measures when handling them.
  • Page 5: Table Of Contents

    1.4 - Instruction for use of the optional Black Body insert ..........4 1.5 - Order Code ......................5 1.6 - Accessories ......................6 2 - T-1200PH Calibrators Operation ................7 2.1 - Menu IN ........................ 8 2.1.1 - Input Connections Diagrams ................9 2.2 - Menu CONF ......................
  • Page 7: Introduction

    T-1200PH 1 - Introduction T-1200PH T-1200PH dry block calibrators control temperature of an insert in order to calibrate thermocouples, thermoresistances, glass thermometers, thermoswitches etc. Besides providing high accuracy temperature values, they also allow the measurement of signals generated by thermo-elements like thermocouples, thermoresistances and thermoswitches, which are being calibrated.
  • Page 8: Technical Specifications

    T-1200PH have also many other features, such as:  The electric signal calibrator is independent from the dry block function.  Internal buzzer beeps when the temperature reaches the desired value.
  • Page 9: Input Technical Specifications

     Technical Manual. 1.3 - Mounting the insert inside the furnace The core of the T-1200PH consists of a ceramic tube. Thus, for safety reasons, the insert and isolators are separate. To mount the assembly, you must first slide the rear insulator smoothly through the ceramic tube.
  • Page 10: Instruction For Use Of The Optional Black Body Insert

     Connect the terminals of the thermocouple type N to the auxiliary input side of the furnace T-1200PH and set the reading of the IN input to N type thermocouple. The combination constitutes an excellent mounted cavity blackbody with emissivity above 0,95 and an effective target of Ø...
  • Page 11: Order Code

    PRESYS  Instruments T-1200PH Observe the distance of the pyrometer to be calibrated against the background of the black body cavity and the size of the actual target (Ø 20 mm) as specified in the technical manual optical pyrometer. Remember that the area targeted by the pyrometer to be calibrated must be less than or equal to the effective target spot size of the blackbody in order to not introduce measurement errors.
  • Page 12: Accessories

    PRESYS  Instruments T-1200PH 1.6 - Accessories  Insert: Holes (insert external diameter: 1”) Inserts Order Code BP01 1 x 3/4" 06.04.0031-00 BP02 1 x 1/2" 06.04.0032-00 BP03 1 x 6.0 mm and 3 x 1/4" 06.04.0033-00 BP04 3 x 6.0 mm and 1 x 1/4"...
  • Page 13: T-1200Ph Calibrators Operation

    T-1200PH 2 - T-1200PH Calibrators Operation The T-1200PH calibrators keep the block temperature controlled and allow the reading of a thermo-element connected to its terminals. It is possible to verify the thermocouple, thermoresistances, temperature transmitters etc together with the block temperature value and temperature setpoint.
  • Page 14: Menu In

    PRESYS  Instruments T-1200PH 2.1 - Menu IN  mV, mA, SW: selects millivolt, milliampere or switch input, respectively. OHM: selects ohms input. Following, choose from the menu the wiring in 2, 3 or 4- wire.  2-WIRE 3-WIRE 4-WIRE TC: selects thermocouple input.
  • Page 15: Input Connections Diagrams

    PRESYS  Instruments T-1200PH 2.1.1 - Input Connections Diagrams Page 9...
  • Page 16: Menu Conf

    PRESYS  Instruments T-1200PH 2.2 - Menu CONF  CF: Selects the temperature unit between ºC or ºF. The ITS-90 or IPTS-68 temperature scales are selected for both the thermo-element and for the internal block reference readings purpose.  ºC-90 ºF-90...
  • Page 17 PRESYS  Instruments T-1200PH TU: Menu that configures the PID control parameters for the heating side. More details in section 6 - PID Control Parameters.  FACT K: Proportional gain I: Integral gain D: Derivative gain FACT: Restore the control parameters to the factory values.
  • Page 18 SCALE HIGH: 100.0 # SCALE LOW: 0.0 # MEM: The T-1200PH calibrators allow many special programs and functions that can be of frequent use. In situations like this, it would be useful to store the current configuration in memory in order to save time. Up to 8 configurations can be stored in memory.
  • Page 19: Manual Operating Mode

    PRESYS  Instruments T-1200PH 2.3 - Manual Operating Mode The display shows the selected temperature value of the block and also the current block temperature or thermo-element temperature value. There are 4 ways in which the information are shown, covering the calibrator input value (IN), the block temperature (PROB) and the temperature setpoint (SET).
  • Page 20: Automatic Operating Mode

    The automatic calibration begins when the option EXEC from menu COM is selected. All the operations are automatically performed by the T-1200PH calibrators. The keypad does not work until the end of the calibration. At the end of the stabilization time, the calibrator stores the thermo-element reading in memory and goes to the next point, in case some input signal has been previously configured in the menu IN and connected to the calibrator terminals.
  • Page 21 PRESYS  Instruments T-1200PH The first message in option VERIF informs the calibration result, with the number of points that have succeeded. Following, press ENTER to verify each one of the   readings performed by the calibrator. The keys...
  • Page 22: Recommendations As Regards Accuracy Of Measurements

    T-1200PH 3 - Recommendations as regards Accuracy of Measurements PRESYS dry block temperature calibrators are instruments of high accuracy level, requiring the observation of all the procedures described in this section, in order to achieve the necessary conditions to get the accuracy levels during the calibrations.
  • Page 23: Safety Instructions

    EEPROM ERROR Problem in EEPROM Same as the previous item READ MANUAL memory Level of battery voltage is Check the T-1200PH LOW BATTERY calibrator power supply Input signal out of See item 1.1.1 on Input UNDER / OVER specifications or scaling...
  • Page 24: Pid Control Parameters

    PRESYS  Instruments T-1200PH 6 - PID Control Parameters The T-1200PH temperature calibrators have a PID control algorithm to calculate the block control output. The dry block stability and response time features are related to the PID parameters, explained below: The K parameter (proportional gain) amplifies the error signal between the setpoint and the block temperature to establish the output signal.
  • Page 25: Calibration

    PRESYS  Instruments T-1200PH 7 - Calibration Warning: Enter the following options only after understanding them completely. Otherwise, it may be necessary to return the instrument to the factory for recalibration! Select CAL option from the main menu and press the ENTER key. You should then enter the password (PASSWORD) 9875 to access the calibration menu.
  • Page 26: Probe Calibration

    PRESYS  Instruments T-1200PH Input calibration for  is performed in two steps: a) Application of mV signal: For the calibration below, leave terminals RTD3 (+) and RTD4 (+) short-circuited. mV Signal Terminals point point V_OHM3 RTD3(+) and mV(-) 90.000 mV 120.000 mV...
  • Page 27 PRESYS  Instruments T-1200PH superthermometer (ST). Now, go back to the option Calibration/ Probe / ºC and record the values indicated by the superthermometer. For T-1200PH: Setpoint of the Initial value to New value to temperature indication record (ºC) indication record generated (ºC)
  • Page 28: Maintenance

    8 - Maintenance 8.1 - Instructions for Hardware There are no parts or components in the T-1200PH temperature calibrators that can be repaired by the user. Only the 6Amp fuse, placed within the socket on the rear can be replaced by the user (10Amp fuse for model T-1200PH 220VAC).
  • Page 29 Presys www.presys.com.br...

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