AST E 450C PL User Manual

Non-contact infrared pyrometers

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Accurate Sensors Technologies
We measure accurate temperature in extreme conditions
AST E 450C PL
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 Accurate Sensors Technologies We measure accurate temperature in extreme conditions AST E 450C PL 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 3 Accurate Sensors Technologies Index 1. Chapter - 1 ........................General information 2. Chapter - 2 ........................Introduction Application, range and working principle 3. Chapter - 3 ........................Technical specification 4. Chapter - 4 ........................Setting at the instrument Operation Adjustment parameters Connection diagram Pin assignment 5.
  • Page 4: General Information

    -20° to +70° C. 1.1.6 Warranty AST E 450C PL instruments have a warranty of two years from the invoice date. AST will replace defective parts, which arises from design errors or manufacturing faults. In case, if pyrometer is opened, disassembled or modified then the guarantees will loss.
  • Page 5 Chapter - 2 Introduction The AST E450C PL is digital two color pyrometer with extended optical head which uses ratio of two adjacent wavelengths for temperature measurement of target object. It has inbuilt LCD, LED light & keypad for parameterization to provide high performance and low maintenance of non contact temperature measurement in demanding industrial environment.
  • Page 6 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 microprocessor. The applications in which AST pyrometers can be used are Induction heating Ÿ...
  • Page 7: Technical Specifications

    Accurate Sensors Technologies Chapter - 3 Technical Specifications Model AST E 450C PL Measured Temperature Ranges 800° - 2500°C (Analog sub range adjustable) Spectral Range, µm 0.7 ..1.15 µm Photodetector Type Si / Si Distance to spot size ratio...
  • Page 8: Operation

    Wall Mounting holes different functions Fig. 3 AST E450C PL User can power up the unit either by USB input or by using connection cable at 24V DC input. After power up sensor starts an initializing routine for some seconds. After this the object temperature is shown in the display. User has to remove the screw (mark USB in figure) to connect the unit with PC via USB cable.
  • Page 9 Accurate Sensors Technologies ) Emmisivity Slope This parameter will be shown if two color mode(CM2) is selected, Different material has different Emissivity slope ranging from 0.75 to 1.25. ) Set point Instrument is equipped with a relay contact controlled by the measuring signal. The turn on temperature of relay is adjusted within the measuring range.
  • Page 10 Accurate Sensors Technologies Pin assignment Pin No. X Pin No. Y Optional (RS-232 / RS-485) Pin No. Z Connection PCB USB Output Sensor cable 24V DC input analog & digital output cable Connector Pin No. Connector Pin No. 1 Fig. 5 Pin Assignment Connector pin assignment: Pin number Indication...
  • Page 11: Optical Specification

    Sensor head details Material : Stainless steel : 25 mm Length : 72 mm Fig. 6 Sensor Head Fig. 7 Sensor Head Dimensions Optical specification AST E 450C PL Working distance (mm) Spot size (mm) 1.12 Aperture Fig. 8 Spot size calculation * Manufactured working distance (WD) mentioned on the pyrometer.
  • Page 12: Electrical Installation

    Fig. 11 Temperature Indicator (Reference no: 9000-01) Alarm 6.1.4 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 13 Accurate Sensors Technologies Mechanical accessories 6.2.1 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 14: Software Installation

    Accurate Sensors Technologies Chapter - 7 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 (G) Peak Picker Setting Three Pickers are available in Pickers setting menu (Auto, tCL, Smart) & user can switch on any as per requirement, one at a time. (G1) Auto “Auto” mode is used for discontinuous measuring task, such as object being transported on a conveyer belt in such a case the maximum value for each object has to be indicated.
  • Page 17 Accurate Sensors Technologies (G3) Smart If the smart picker is switched on, the highest last temperature value will always be displayed and stored. This feature is particularly useful when object temperature is not uniform across its dimension or the pyrometer is not constantly viewing an object to be measured. Smart Picker Functions Smart picker can be turn ON &...
  • Page 18 Accurate Sensors Technologies (H)Relative energy(for two color pyrometer) The relative energy shows a signal weakening which can be caused by contaminations of the optics or a viewing window or by dust in the field of view or a too small measuring object. Relative energy shows the measured intensity compared to the intensity, a black body radiation source would have at a determined ratio temperature of the pyrometer.
  • 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: Cleaning Lens

    Accurate Sensors Technologies Chapter - 8 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. 8.1 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 22 Accurate Sensors Technologies Chapter - 9 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. Fig.
  • Page 23 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 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 14-15 059D 0000 0x02 0x30, 0x41 0x52, 0x44 0x30,0x35,0x39,0x44 0x30, 0x30, 0x30, 0x30 0x39, 0x43...
  • Page 26: 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 27: 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 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 FOR 6 mm INSIDE DIAMETER HOSE 3 x M5 Ø30 138.50 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 for 3 mm inside...
  • Page 30: Maintenance

    For storage in humid areas or shipment overseas, the device should be placed in welded foil (ideally along with silicone gel) to protect it from humidity. Warranty AST E 450C PL instruments have a warranty of two years from the invoice date. This warranty covers manufacturing defects. User-induced faults are not covered under this warranty. Software warranty The windows compatible software was thoroughly tested on a wide range of windows operating systems.
  • 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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