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Isotech Pegasus R 970 User Maintenance Manual/Handbook

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PEGASUS R
MODEL 970
User Maintenance Manual/Handbook
Isothermal Technology Limited, Pine Grove, Southport, PR9 9AG, England
Tel: +44 (0)1704 543830 Fax: +44 (0)1704 544799 Internet: www.isotech.co.uk E-mail: info@isotech.co.uk
The company is always willing to give technical advice and assistance where appropriate. Equally, because of the programme of continual
development and improvement we reserve the right to amend or alter characteristics and design without prior notice. This publication is for
information only
Page 1 of 24
Pegasus R Iss.07 – 08/13

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Summary of Contents for Isotech Pegasus R 970

  • Page 1 Isothermal Technology Limited, Pine Grove, Southport, PR9 9AG, England Tel: +44 (0)1704 543830 Fax: +44 (0)1704 544799 Internet: www.isotech.co.uk E-mail: info@isotech.co.uk The company is always willing to give technical advice and assistance where appropriate. Equally, because of the programme of continual development and improvement we reserve the right to amend or alter characteristics and design without prior notice.

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ....................................... 2 GUARANTEE...................................... 3 CAUTIONARY NOTE ..................................4 EMC INFORMATION ..................................5 ELECTRICAL SAFETY ..................................5 Environmental Ratings .................................. 5 Insert Warning ....................................5 HEALTH AND SAFETY INSTRUCTIONS ............................6 INTRODUCTION ....................................7 UNPACKING AND INITIAL INSPECTION ............................7 ELECTRICITY SUPPLY ..................................

  • Page 3: Guarantee

    INTERFERENCE WITH OR FAILURE TO PROPERLY MAINTAIN THIS INSTRUMENT MAY INVALIDATE THIS GUARANTEE RECOMMENDATION The life of your ISOTECH Instrument will be prolonged if regular maintenance and cleaning to remove general dust and debris is carried out. ISOTHERMAL TECHNOLOGY LTD.

  • Page 4: Cautionary Note

    CAUTIONARY NOTE ISOTECH PRODUCTS ARE INTENDED FOR USE BY TECHNICALLY TRAINED AND COMPETENT PERSONNEL FAMILIAR WITH GOOD MEASUREMENT PRACTICES. IT IS EXPECTED THAT PERSONNEL USING THIS EQUIPMENT WILL BE COMPETENT WITH THE MANAGEMENT OF APPARATUS WHICH MAY BE POWERED OR UNDER EXTREMES OF TEMPERATURE, AND ARE ABLE TO APPRECIATE THE HAZARDS WHICH MAY BE ASSOCIATED WITH, AND THE PRECAUTIONS TO BE TAKEN WITH, SUCH EQUIPMENT.

  • Page 5: Emc Information

    The blue conductor should be connected to Neutral and the Brown conductor to Live (Line). Warning: Internal mains voltage hazard. Do not remove the panels. There are no user serviceable parts inside. Contact your nearest Isotech agent for repair. Voltage transients on the supply must not exceed 2.5kV.

  • Page 6: Health And Safety Instructions

    If cased, do not return the apparatus to its carrying case until the unit has cooled. There are no user serviceable parts inside. Contact your nearest Isotech agent for repair. Ensure materials, especially flammable materials are kept away from hot parts of the apparatus, to prevent fire risk.

  • Page 7: Introduction

    Radiance temperature - that is read by a radiation pyrometer is found from the calibration certificate (if supplied). The Pegasus model is part of a range of portable calibrators designed and made by ourselves. Please contact us or visit our website www.isotech.co.uk if you require more information about our other products. UNPACKING AND INITIAL INSPECTION...

  • Page 8: The Basic Workings Of The Pegasus

    THE BASIC WORKINGS OF THE PEGASUS The purpose of the Pegasus 'R' model is to provide an adjustable isothermal enclosure for calibration purposes. The isothermal enclosure consists of a fixed heated furnace. The heated furnace houses a graded heater winding and the control sensor used by the temperature controller to sense the furnace temperature.

  • Page 9: Assembling The Insert

    ASSEMBLING THE INSERT Where the unit is to be used with a standard or special insert, the insert ceramics must be assembled as per the drawing below. Ensure furnace is cool. Slide the long ceramic insulator (970-01-03C) down the furnace tube so that it rests on the base. Carefully lower the smaller ceramic (970-01-03B) inside the furnace to rest on the lower ceramic.

  • Page 10: Initial Testing

    INITIAL TESTING This unit was tested before despatch to you but please check its operation as outlined below and in Appendix 1. After connecting the Pegasus 'R' to the electricity supply, the temperature controller display will show the temperature of the furnace and the last set-point value. The 'R' controller and indicator both go through a self-test sequence first.

  • Page 11: Calibration Using The Temperature Indicated On The Controller

    CALIBRATION USING THE TEMPERATURE INDICATED ON THE CONTROLLER Remove the Pegasus 'R' from its case and visually inspect it for any damage it may have sustained since it was last used. Insert the black body source assembly (see fig 970-20-02) into the furnace tube with the ceramic insulators.

  • Page 12: Tutorial: The Use Of A Pegasus 'R' Calibrated Source To Calibrate Radiation Pyrometers

    TUTORIAL: THE USE OF A PEGASUS 'R' CALIBRATED SOURCE TO CALIBRATE RADIATION PYROMETERS INTRODUCTION The Pegasus 'R' is designed as a source for the calibration of radiation pyrometers over the range 200 C to 1200 C. Most users of radiation pyrometers are unfamiliar with the procedures for calibration and the tutorial below is intended to help new users.

  • Page 13: A Typical Calibration/Evaluation Of An Industrial Pyrometer

    For normal industrial pyrometers a simple bench is quite adequate. My suggestion is a slide piece to enable pyrometers of varying focal length to be calibrated and a holder for the pyrometer which allows 2 freedom of movement i.e. height and lateral position. A Typical Calibration/Evaluation of an Industrial Pyrometer A typical calibration sequence for a optical pyrometer is given below adapted from our UKAS submission.

  • Page 14: Method

    METHOD Evaluation of the Optical Bench The Pegasus 'R' item was set up in the 'normal' position as described above. The controller temperature was set to 1000 C. After stabilisation the 3 freedom of movement were evaluated. Back & Forth The optical pyrometer was moved back &...

  • Page 15: Audit Calibration

    Audit Calibration Having established confidence in the optical bench system and the optical pyrometer. The calibrated source, Pegasus 'R' was set to the first calibration temperature and allowed to stabilise. The optical pyrometer was placed in its holder as shown in fig. 19071. The controller temperature, the indicated source temperature and the optical pyrometer temperatures were noted.
  • Page 16 Table 1: Calibration Results RADIANCE OPTICAL TEMP. READING CONTROLLER T/C INDICATED PYROMETER CORRECTED PEGASUS R TEMP C TEMP SOURCE FROM NPL CERT READING C Standard Standard 448.8 Standard Standard Standard 1000 Page 16 of 24 Pegasus R Iss.07 – 08/13...

  • Page 17: Using The Pc Interface

    The Isotech conversion leads are suitable for maximum combined lead lengths of 10M that is adequate for most applications. CONNECTIONS For RS232 use simply connect the Isotech cable, a 9 to 25 pin converter is included to suit PCs with a 25 pin serial converter. RS422 Connections...

  • Page 18: Cal Notepad

    CAL NOTEPAD Cal Notepad can be used can be used to log and display values from the Dry Blocks and an optional temperature indicator such as the milliK or TTI-10. The software requires Windows 9X, XP, a minimum of 5Mb of free hard drive space and free serial ports for the instruments to be connected.

  • Page 19: How To Install Cal Notepad

    HOW TO INSTALL CAL NOTEPAD Download the ZIP from http://www.isotech.co.uk/downloads (7.6Mb) Extract the files to a temporary folder Run setup.exe Follow the prompts which will install the application, a user manual with setup information and the necessary LabVIEW run time support files.
  • Page 20 FIGURE 1: PEGASUS 'R' PANEL LAYOUT AND FUNCTIONS T/C SOCKET INDICATOR CONTROLLER CALIBRATION AREA Page 20 of 24 Pegasus R Iss.07 – 08/13...
  • Page 21 FIGURE 19071 Page 21 of 24 Pegasus R Iss.07 – 08/13...
  • Page 22 Page 22 of 24 Pegasus R Iss.07 – 08/13...
  • Page 23 Page 23 of 24 Pegasus R Iss.07 – 08/13...

  • Page 24: Appendix 1: Trouble Shooting

    CONTROLLER DISPLAY UNUSUAL Error or system message. Refer to Isotech or your local Agent. HEATER FAIL ON If the temperature of the block increases rapidly with the controller output staying off the relay and sensor are suspect.

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