AST T3-814 User Manual
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AST T3-814 User Manual

Non-contact infrared pyrometers
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Accurate Sensors Technologies
We measure accurate temperature in extreme conditions
AST T3-814
Non-contact Infrared Pyrometers
USER MANUAL
AST - Accurate Sensors Technologies
Misgav Industrial Park
, Misgav 20173, Israel
Tel: +972-4-9990025, Fax: +972-4-9990031
Email: info@accuratesensors.com
Web: www.accuratesensors.com

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Summary of Contents for AST T3-814

  • Page 1 Accurate Sensors Technologies We measure accurate temperature in extreme conditions AST T3-814 Non-contact Infrared Pyrometers USER MANUAL AST - Accurate Sensors Technologies Misgav Industrial Park , Misgav 20173, Israel Tel: +972-4-9990025, Fax: +972-4-9990031 Email: info@accuratesensors.com Web: www.accuratesensors.com...
  • Page 2 Accurate Sensors Technologies...
  • Page 3 Accurate Sensors Technologies Index 1. Chapter - 1 ........................General information 2. Chapter - 2 ........................Introduction Product Key Features, Application and Range Technical specification Optics 3. Chapter - 3 ........................Basics & Installation of Pyrometer Basics of Infrared temperature measurement of an object Installation Location Selection Mechanical Accessories...

  • Page 4: General Information

    AST reserves the right to revise this document and to make change from time to time in the content hereof without obligation to notify any person or persons of such revisions or changes AST instruments have a warranty of two year from the invoice date.

  • Page 5: Product Key Features

    The pyrometer sensor detects the amount of infrared radiation emitted by the measured object (target). The infrared signal is analyzed and the temperature it represents is analyzed by built-in micro controller. AST T3-814 work in 2-wire technology.

  • Page 6: Technical Specifications

    Accurate Sensors Technologies 2.2 Technical Specifications Model T3-814 PL Temperature Range 0°C….1000°C (Analog sub-range adjustable) 75°C…1000°C Spectral Range µm ...14 µm Photodetector Type Thermopile 50:1 Distance to Spot Size Ratio 100:1 Emissivity (ε) 0.1….1.0 adjustable Response Time 60 msec adjustable upto 10sec T <...
  • Page 7 For example, if factory made working distance is 500 mm & pyrometer is AST T3-814PL (0 - 1000°C) then spot size is 5mm (as given in table). If user installed this pyrometer at 1000mm then spot size is not 10mm (as given in table), user should have to Fig.

  • Page 8: Installation

    Accurate Sensors Technologies Chapter - 3 Basics & Installation of the Pyrometer Basics of Infrared temperature measurement of an object Each and every object emit definite amount of infrared radiation and its intensity varies according to the temperature of object. Wavelength of infrared radiation lies approximately between 8.0µm to 14 µm depending on the material and properties of object.
  • Page 9 Accurate Sensors Technologies 3.2.2 Distance of pyrometer from object The desired spot size on the target will determine the maximum measurement distance and the focal length of the optical module. To avoid wrong readings the spot size of target must contain entire field view of the pyrometer.

  • Page 10: Location Selection

    Accurate Sensors Technologies 3.3 Location Selection Qualified operating person should do the installation. Location should be good enough so that pyrometer should get continuous infrared radiation. Pyrometer distance from object is according to below points:- 1. Pyrometer spot size should be small than object size.(read 3.2.2 & 3.2.3) 2.

  • Page 11: Mechanical Accessories

    Accurate Sensors Technologies 3.4 Mechanical Accessories 3.4.1 Water Cooling Jacket This accessory is very important in order to use pyrometer at higher temperature. A normal pyrometer can withstand a temperature of 0-70°C. For higher temperature applications the device must be used with water cooling jacket upto 200°C.( for mechanical drawing refer Appendix C.) Water pressure <...

  • Page 12: Power Supply

    Accurate Sensors Technologies 3.4.6 Combination of Accessories Air Purge Unit Pyrometer Mounting Pyrometer Clamp Mounting Clamp Fig. 10 Mounting Clamp + Pyrometer Fig. 11 Air purge unit + Mounting Clamp + (Reference no: 8500-04 ) Pyrometer (Reference no: 8700-01 + 8500-04) Water inlet/outlet Air purge Cooling Jacket...
  • Page 13 Accurate Sensors Technologies 3.5.3 Wire connections of Pyrometer Following diagram & table shows proper wiring connection. Power Supply White 4..20 mA Display / Brown T3-250PL/T3-450PL Indicator Fig. 15 Connecting pyrometer with supply and display / indicator Table 2 : Color code COLOR INDICATION DESCRIPTION...

  • Page 14: Display Instrument

    In order to connect pyrometers with computer orange wire should be connected to 2 pin, red wire to 3 pin and blue wire to 4 pin of infralink USB interface. Orange Computer AST Pyrometer Blue “Infralink” USB Interface Fig. 18 Pyrometer to PC Connection 3.5.9 Display Instrument...

  • Page 15: Software Installation

    Accurate Sensors Technologies Chapter - 4 Software Installation Using AST software(Infrasoft) user can set all the parameters like response time, clear time, communication mode. This software provide all necessary information about pyrometer. 4.1 Installation Install the pyrometer software using the installation guide file on CD ROM & restart your PC as per guidelines provided for installation.

  • Page 16: Parameter Setting

    Accurate Sensors Technologies For communication of multiple pyrometers, select different com port and address. 4.2.2 Temperature It shows the temperature measured by the pyrometer 4.2.3 Parameter Setting All user selectable device parameters can be set by using the software in the Panel "Parameter" (A) Response time The desired response time can be chosen in the panel Parameter by clicking the appropriate list box (as per the values available in the drop box of response time from...

  • Page 17: Device Information

    Accurate Sensors Technologies Peak-Picker: If the peak picker is switched on, the highest last temperature value will always be displayed and stored. As such, it may be beneficial to periodically clear and reset the stored values in order to obtain new temperature readings & it will reset whenever the pyrometer goes outer(below sub range begin(lower)) the measuring range of temperature.
  • Page 18 Accurate Sensors Technologies Record will be saved as .txt format and the name of file will be user define. To record emissivity, click on Record Emissivity button. If user wants file in Spreadsheet format, user can export by choosing Excel Spreadsheet in file menu.
  • Page 19 Accurate Sensors Technologies File will be stored in .xls format named as “export”. This “export.xls” file will be saved where the software is installed. To see previous record open the file by clicking on menu File open. Screen containing historical trend & historical data will appear.
  • Page 20 Accurate Sensors Technologies Temperature graph of connected pyrometer is displayed on right side of the screen. This shows the measured temperature corresponding to the time. Note: After connecting the pyrometer right click on the graph screen and choose "Set to default" option from pop-up menu.
  • Page 21 Accurate Sensors Technologies Chapter - 5 Calculate Spot Size To calculate Spot Size click on Utility Calculate Spot Size This option is used to calculate the spot size at installed working distance of the Pyrometer. When you click on calculate spot size the new window will open. Manufactured working distance in (mm).

  • Page 22: Maintenance

    Accurate Sensors Technologies Chapter - 6 Maintenance In case of any queries, questions regarding repair, solutions to problems, calibration and assistance you may contact our sales representatives. Most of problems can be solved telephonically. 6.1 Cleaning Lens The lens should be kept clean all the time as it aims at center of target object. When cleaning lens care should be taken and it can be done as follows : Firstly blow off lightly loose particles with “canned air”...
  • Page 23 AST sensors always operate as Slave devices. Using RS485 serial communication option allows connecting more than one sensor to Master device. AST sensors always perform delay of 5 ms before sending an answer on Master request to meet RS485 hardware requirement.
  • Page 24 Accurate Sensors Technologies Device model number (read '0E00' '01' 10 bytes “AST450C “', if less than 10 byte pad with space at end only) Firmware version '1300' '01' Firmware version number of device (read only) Sensor serial number (read 6 bytes in hex, if less than 6 bytes pad with '0' at start. Only numbers '1400' '01' only)
  • Page 25 Accurate Sensors Technologies Reply to above command if address '0000' contains value 1497 and address '0001' contains value 0000. Byte 1 Bytes 2, 3 Bytes 4, 5 Bytes 6-9 Bytes 10-13 Byte 14 Byte 15-16 059D 0000 0x02 0x30, 0x41 0x52, 0x44 0x30,0x35,0x39,0x44 0x30, 0x30, 0x30, 0x30...
  • Page 26 Accurate Sensors Technologies Error Codes Error Code Description Comments Invalid check sum See how to calculate a check sum Unknown command Protocol uses only RD (Batch Read) and WD (Batch Write) commands Data length error Number of items in WD (Batch Write) command doesn't match number of data bytes ETX not found ETX (0x03) not present in command...
  • Page 27 Accurate Sensors Technologies Appendix A DATA Comments Status code '0000' : No error '0001' : Signal is lower than sensor sensitivity '0002' : Out of range due to T brightness minimum '0003' : Too low energy '0004' : Signal is higher than sensor sensitivity '0006' : Sharp brightness jump '0007' : Non stable object measurement '0011' : Internal temperature warning...
  • Page 28 Accurate Sensors Technologies Appendix B Typical emissivity values for various materials available: All the emissivity values shown in the table are only approximate, as it depends various parameters and it may affect the emissivity of a material. These parameters are as under: Temperature Thickness of material Angle of measurement...

  • Page 29: Mechanical Drawings

    Accurate Sensors Technologies Appendix C Mechanical Drawings Water Cooling Jacket Water Cooling Jacket with Adjustable Flange PL Water Cooling Jacket with Adjustable Flange TL (Reference no: 8000-02) (Reference no: 8000-06) Air Purge Unit Adjustable Mounting Stand ° 3 x M6 THRU AT 120 FOR 6 mm INSIDE DIAMETER HOSE GRUB SCREW FOR...

  • Page 30: Packing Instructions

    Liability regarding any direct or indirect damage caused by this software is excluded. Limit of liability AST not liable for any damages that arise from the use of any examples or processes mentioned in this manual. Specifications are subject to change without notice...
  • Page 31 AST reserves the right to make changes, without further notice, to any products herein to improve reliability, function, or design. AST does not assume any liability arising out of the application or use of any product described herein, neither does it convey any license under its patent rights nor the rights of others.
  • Page 32 Based on these technologies, AST/3T has bought to the market a line of pyrometers for the remote measurement of target temperatures using no physical contact. AST/3T pyrometers use a totally new approach for remote temperature measurement achieving high accuracy.

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