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Accurate Sensors Technologies
We measure accurate temperature in extreme conditions
AST EL50
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 EL50
- Page 1 Accurate Sensors Technologies We measure accurate temperature in extreme conditions AST EL50 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 Index 1. Chapter - 1 ........................General information 2. Chapter - 2 ........................Introduction 2.1 Application, range and working principle 3. Chapter - 3 ........................Technical specification 4. Chapter - 4 ........................Setting at the instrument 4.1 Operation 4.2 Adjustment parameters 4.3 Connection diagram 4.4 Pin assignment 5.
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Page 3: General Information
-20° to +70° C. 1.1.6 Warranty AST EL50 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 4: Sensing Head
The AST EL50 pyrometers are especially designed for industrial purposes. They are suitable for high temperature measurement ranging from 0°C to 800°C. The AST EL50 are pyrometers with extended sensor head and equipped with a display which shows in measuring mode the current temperature.The cable & optical head are unaffected by electromagnetically interferences (e.g. -
Page 5: Technical Specifications
Chapter - 3 Technical Specifications Model AST EL50 Measured Temperatures Range 0 °C - 800 °C (Analog output sub range adjustable) Spectral Range 8..14µm Photodetector Type Thermopile Distance to spot size ratio 2:1 or 15:1 Response Time 20msec adjustable upto 10s +/-1.5% of temperature reading or +2°C (Optical head should be... -
Page 6: Operation
Chapter - 4 Setting at the instrument LCD display for measuring temperature and parameterization Function key to select different functions USB output Sensor cable maximum length 15 mtr. 24V DC input, analog & digital output cable Function keys for parameter setting Wall Mounting holes User can power up the unit either by USB input or by using connection cable at 24V DC input. - Page 7 Example : if set point value is 200°C and Hysteresis set to 10. Then relay operation as below mentioned: 1. Relay contact OPEN below 210°C temperature. 2. Relay contact CLOSE above 210°C temperature. 3. Once relay contact CLOSED than relay contact is OPEN's when temperature falls below 190°C. Ana.
- Page 8 Accurate Sensors Technologies 4.4 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 Connector Connector Connector Pin No. 1 Pin No.
- Page 9 Accurate Sensors Technologies Chapter-5 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.
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Page 10: Power Supply Unit
Chapter - 6 Accessories Electrical Accessories 6.1.1 Power supply unit AST E 250/450 PL 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. Power supply unit (Reference no: 9000-02) 6.1.2 Temperature display instrument... - Page 11 6.1.3 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. Device has following specification: Power supply 100 –...
- Page 12 Mechanical Accessories 6.2.1 Adjustable mounting support for sensor head Adjustable mounting for sensor head (Reference no: 8300-04) 6.2.2 Air purge unit for sensor head for 3 mm internal diameter hose M20 x 1.0 Air purge unit for sensor head (Reference no: 8300-03)
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Page 13: 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 14 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 15 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 16 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 &...
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Page 17: Device Information
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 18 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 19 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 20 Chapter - 8 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 21 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 22 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 23 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 in the event of an error, the reply is Byte 1...
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Page 24: Error Codes
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 25: Broadcast Message
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 26: 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... - Page 27 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 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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