AST IR-CAST 2C User Manual
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AST IR-CAST 2C User Manual

Non-contact infrared pyrometers
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A
ccurate ensors echnologies
S
T
We measure accurate temperature in extreme conditions
AST IR-CAST 2C
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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  • Page 1 We measure accurate temperature in extreme conditions AST IR-CAST 2C 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 Index 1. Chapter - 1 ........................General information 2. Chapter - 2 ........................Introduction 2.1 Application, range and working principle 2.2 Technical specification 2.3 Optics 3. Chapter - 3 ........................Installation of pyrometer 3.1 Installation 3.1.1 Location selection 3.1.2 Correct positioning of pyrometer 3.1.3 Mounting of pyrometer 3.1.4 Ambient temperature...

  • Page 3: 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 4 2.1 Application, Range and Working Principle The digital AST IR-CAST 2C pyrometer use ratio method in which 2 adjacent wave lengths are used for measurement of temperature. They are suitable for high temperature measurement ranging from 700°C to 1700°C.

  • Page 5: Technical Specifications

    Accurate Sensors Technologies 2.2 Technical Specifications Model AST IR-CAST 2C Measured Temperature Range 700° - 1700°C (Analog sub range adjustable) Emissivity Range 0.1….1 adjustable (for single color mode) Emissivity slop 0.75….1.25 slop adjustable (for two color mode) Spectral Range single colour (1.0..1.15µm) two colour (0.7 ..1.15µm &...
  • Page 6 Accurate Sensors Technologies 2.3 Optics The pyrometer measure temperature by receiving heat radiation from the object whose temperature has to be measured. This heat radiation is passes through the lens to the sensor and is then converted to an electrical signal. The farther the measured object is from the pyrometer, the larger the area that will be measured by the pyrometer.
  • Page 7 For example, if factory made working distance is 1000mm & pyrometer is AST IR-CAST 2C(700° - 1700°C) then spot size is 6mm (as given in table). If user installed this pyrometer at 5000mm then spot size is not 30mm (as given in table), user should have to calculate as given method..

  • Page 8: Installation Of The Pyrometer

    Accurate Sensors Technologies Chapter - 3 Installation of the Pyrometer Installation 3.1.1 Location selection Qualified operating personnel 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:- The minimum width of the pouring stream must be 33% of the width of the horizontal measuring width.

  • Page 9: Mechanical Accessories

    Accurate Sensors Technologies 3.2 Mechanical accessories Water Cooling Jacket with Adjustable Flange PL (Reference no: 8000-02) Water pressure : < 10 bar Air pressure : < 0.5 bar Air consumption : 2...3 m³/h Ambient temperature : < 200°C Metal : Stainless steel Weight : 2.75 Kg Water Cooling Jacket with Adjustable Flange TL...

  • Page 10: Electrical Accessories

    Adjustable mounting support (Reference no: 8000-05) 3.3. Electrical Accessories AST IR CAST 2C is powered by 24V DC (well stabilized ripple max 50mV).The input power supply is 110/230v AC check the polarity before connecting the device. Device has following specifications Power supply I/P : 100 - 240VAC, 0.9A...
  • Page 11 Accurate Sensors Technologies Colour Indication Used for + 24 V DC In Power supply White Ground Blue TxD (RS-232) / D- (RS-485) Pink RxD (RS-232) / D+ (RS-485) RS-232/ RS-485 communication Black RS-232 communication Yellow (-) 4-20mA / 0-20mA Analog current output Violet (+) 4-20mA / 0-20mA Brown...
  • Page 12 230V, AC Cable) 4-20 mA(+) Yellow Violet Earth +24 V DC 9 8 7 6 White Pink Computer AST Pyrometer with Female Male Female Digital Output RS-485 Blue RS-232 Connector RS-232 Connector RS-232 Connector AST 12-core cable Ref. No.: 9000-03...
  • Page 13 Alarm Temperature indicator (Reference no: 9000-01) 3.3.5 Display & parameterizer AST P-120 is a high precision LED indicator for non contact temperature measurement. With indication of measured temperature user can easily parameterize a connected AST digital pyrometer without any PC.

  • Page 14: Software Installation

    Accurate Sensors Technologies Chapter - 4 Software Installation The provided AST software “InfraSoft” offers digital PC interface RS-232 & RS-485. Using this software we can set all the parameters like response time, analog scale, emissivity, clear time, communication mode. This software provide all necessary information about pyrometer.
  • Page 15 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) Emissivity settings The emissivity can be set by clicking on "Parameters”...
  • Page 16 Accurate Sensors Technologies (E)Switch off level% ( for two color pyrometer) The switch of level is the function that is used to avoid measurement errors caused by signals, which are too low. Although factory default is set to 15 %, the switch off limit can be adjusted between 2 and 50%.

  • Page 17: Device Information

    Accurate Sensors Technologies (lll) Reset Below Temperature(RBT) The user can set RBT within the limit of pyrometer sub range. This function sets the temperature above which peak picker action starts. When the target temperature matches or is below the selected value, the sensor indicates temperature without picking action. Time Time RBT with Decay Rate...
  • 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 Calculate Spot Size To calculate Spot Size click on Utility 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 Slave device. The request contains an address of polling “Slave” device. Slave device reply only on the requests issued by Master. Each Slave has its own address to recognize the issued request. AST sensors always operate as Slave devices. Using RS485 serial communication option allows connecting more than one sensor to Master device.
  • Page 23 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 24 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 14-15 059D 0000 0x02 0x30, 0x41 0x52, 0x44 0x30,0x35,0x39,0x44 0x30, 0x30, 0x30, 0x30 0x39, 0x43...

  • Page 25: Error Codes

    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 26: Broadcast Message

    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 27: Maintenance

    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 Copyright: ©...
  • Page 28 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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