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Operating instructions  

 Infrared temperature sensor 

TW20xx 

706365 / 00

 

03 / 2014

UK

°F °C

Содержание EFECTOR 600 TW20 Series

Страница 1: ...Operating instructions Infrared temperature sensor TW20xx 706365 00 03 2014 UK F C ...

Страница 2: ...shold 7 4 2 Output signal 7 4 3 Upper threshold delay 7 4 4 Lower threshold delay 7 4 5 Switching functions 8 4 6 Internal signal processing 9 4 7 Analogue output 9 5 Electrical connection 10 6 Shielding and Grounding 11 6 1 Equipotential bonding 11 7 Operating controls and display 12 8 Menu 13 8 1 Display of measurement reading 13 8 2 Main menu 13 8 3 Advanced functions 14 9 Menu explanation 15 9...

Страница 3: ...of the configuration parameters in the main menu 21 12 2 Display of the configuration parameters for advanced functions 21 12 3 Ambient temperature 21 12 4 Error indications 21 13 Ways to determine emissivity 22 13 1 Emissivity coefficient tables 23 14 Maintenance 25 14 1 Cleaning the pyrometer lens 25 15 Shipping packaging and disposal 25 15 1 Transport Inspektion 25 15 2 Packaging 26 16 Copyrigh...

Страница 4: ...symbol points out guidelines If you do not observe them the device might be damaged malfunctioning or even fail to operate CAUTION This symbol points out hints and information which should be heeded for efficient and trouble free operation Action This symbol instructs the operator to take action Reaction Result This symbol indicates the result of the action taken 1 2 Liability and Warranty All inf...

Страница 5: ...he use of the infrared temperature sensor for any other purpose beyond what is specified in this manual is prohibited Using the instrument in any other manner will be considered as improper The Manufacturer Authorised Agent shall not be held liable for any dam ages or loss resulting from such unintended or improper use in this case the risk is solely borne by the user 2 2 User s responsiblity The ...

Страница 6: ... contact between the sensor and the hot object The instrument is suitable for the following applications Measurements at moving or hard to reach objects Measurements at surface treated or voltage carrying objects Measurements at sticky materials such as dough or aggressive chemicals Applications requiring fast response times The rugged stainless steel housing enables the instrument to be used in h...

Страница 7: ...diately increases 4 2 Output signal The following switching functions can be selected Normally open contact EF ou1 Hno normally open Normally closed contact EF ou1 Hnc normally closed 4 3 Upper threshold delay Once the sensor has detected a temperature which exceeds the switching threshold SP1 the time delay dS1 starts running When this delay period has elapsed the output OUT1 activates switching ...

Страница 8: ...8 4 5 Switching functions 1 Teperature profile 2 Switch signal Hno 3 Switch signal Hno with upper and lower threshold delay 4 Switch signal Hnc 5 Switch signal Hnc with upper and lower threshold delay ...

Страница 9: ...ty to radiate heat depends on the type of material and its surface properties A description of the calculation of emissivity is in Chapter 13 Page 23 The ability of a body to emit infrared radiation is expressed by a material constant called emissivity coefficient or just emissivity This coefficient lies between 0 and 100 A body with ideal radiation black body has a coefficient of 100 At the same ...

Страница 10: ...ify absence of voltage Connect the instrument according to the following schematic 4 2 1 3 5 Pin 1 BN brown L Pin 2 WH white Analogue output 4 20 mA Pin 5 GY grey Test Input pin Pin 4 BK black Open Collector switching output 1 Imax 150 mA Pin 3 BU blue L The infrared temperature sensor must be protected against high voltage and strong electromagnetic fields Use a shielded cable connecting it via c...

Страница 11: ...en devices through a cable shielded at both ends In this case be sure to install an additional equipotential bonding line To avoid an equalising current the infrared temperature sensor can be mounted electrically insulated The shielding must be connected to the plant s earthing system If the infrared temperature sensor is installed without an insulator and with out potential equalisation the inter...

Страница 12: ...rature 1 to 3 Indicator LEDs LED 1 indicates switching output of the respective output LED 2 temperature in F LED 3 temperature in C 4 Control key Enter Select parameter and confirm setting 5 Control key up and down Adjust configuration parameters 6 Alphanumeric display 4 stellig Indicates temperature value Indicates parameters and configuration Indicates overload at switching output ...

Страница 13: ...13 UK 8 Menu 8 1 Display of measurement reading Main menu 8 2 Main menu Display of measurement reading Advanced functions ...

Страница 14: ...14 8 3 Advanced functions Main menu ...

Страница 15: ...meter Function Comments rEs Factory settings Reset to factory settings dS1 Upper threshold delay Value in sec 10 sec in steps of 0 1 sec dr1 Lower threshold delay Value in sec 10 sec in steps of 0 1 sec ou1 Output function Hno normally opened Hnc normally closed uni Temperature unit Temperature displayed in F or C dAp Damping Damping for the temperature display switch outputs and analogue output P...

Страница 16: ...ly set emissivity coefficient leads to wrong temperature readings Set the emissivity coefficient after connecting the supply voltage or resetting the parameters to factory settings The display then shows three horizontal strokes The emissivity is set as follows Press Enter The display shows EPS1 Press Enter the display shows nonE hold key until the required value is displayed Press Enter The curre...

Страница 17: ...until the required output function is displayed 3 Show parameter value Press Enter Current parameter value is dis played The infrared temperature sensor will display the parameter value for 30 sec After that the display will once again indicate the measurement as a percentage 4 Change parameter value Press or and hold for 3 s displays are first flashing then they are continuously lit Hold key or N...

Страница 18: ...nctions Use parameter EF Select submenu with and press Enter to change to the submenun Back to measurement reading Wait 30 sec or return with or vfrom the submenu to the main menu from the main menu to the measure ment reading 11 3 Test function The infrared temperature sensor features an integrated diagnostics function to check signal processing the switching output and the analogue output It can...

Страница 19: ... without smoothing function 2 Output signal with smoothing function 11 5 Peak hold function It might often be desirable to determine the peak temperature during a defined time period for example when the objects to be measured move past the infrared temperature sensor resulting in temperature readings which would appear to be cyclical In this mode the displayed temperature reading will not drop be...

Страница 20: ...gs with peak hold function 5 Measuring readings without peak hold function 11 6 Reset all parameters to factory settings rES select in menu advanced functions Press Enter or and hold is displayed Press Enter The display shows After a reset to factory settings configure the emissivity coefficient EPSI again to obtain exact measuring results ...

Страница 21: ...s to Run Mode 12 2 Display of the configuration parameters for advanced functions Press Enter Press key until the parameter Ef is displayed Press Enter Press key until the required parameter is displayed Press Enter The display will indicate the parameter value for 30 sec After that it returns to Run Mode 12 3 Ambient temperature The maximum permissible ambient operating temperature for the infrar...

Страница 22: ...materials This information should be used with caution however It is important to know for which temperature and which wavelength the emissivity value is applicable Furthermore the stated emissivity values were obtained under ideal conditions In actual practice the total emissivity of the target object will vary depending on the amount of extraneous radiation transmitted through the object from th...

Страница 23: ...ing again 13 1 Emissivity coefficient tables List of emissivity coefficients of different materials in Model TW2000 Wavelength λ 8 14 μm Black body 100 Aluminium oxide 76 Asphalt 90 98 Baking oven dark colour 96 Concrete 55 65 Bitumem roofing paper 96 Bread in baking oven 88 Ferrous oxide 85 89 Enamel 84 88 Earth 92 96 Paint and varnish bright 92 Paint and varnish pale 94 Gypsum 80 90 Glass 85 95 ...

Страница 24: ... TW2011 TW2002 Wavelength λ 1 1 1 7 μm 0 78 1 06 μm Black body 100 100 Aluminium polished 5 15 Aluminium filed smooth 10 25 Asbestos cement 60 70 Bronze polished 1 3 Bronze filed smooth 15 30 Chromium polished 15 30 Iron heavily scaled 90 95 Iron rolling skin 75 90 Iron liquid 15 30 Gold and silver 1 2 Graphite filed smooth 85 90 Copper oxidised 70 90 Brass oxidised 50 70 Nickel 8 20 Porcelain gla...

Страница 25: ...h clear water while holding the device pointed down Apply as little pressure as pos sible to avoid scratching the lens 15 Shipping packaging and disposal 15 1 Transport Inspektion Unpack and inspect the entire shipment immediately upon receipt to make sure it is complete and undamaged If the container package shows visible signs of dam age please refuse the shipment If this is not possible accept ...

Страница 26: ...ed provided that the following conditions are met Redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer Redistributions in binary form must reproduce the above copyright notice this list of condi tions and the following disclaimer in the documentation and or other materials provided with the distribution Neither the name of the c...

Страница 27: ...SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE 17 Default settings factory settings Parameter Default parameters TW2000 TW2001 TW2002 TW2011 User con figuration OUT1 SP1 250 C 500 C 1000 C 550 C rP1 230 C 480 C 960 C 530 C OUT2 ASP2 0 C 250 C 500 C 300 C ASE2 1000 C 1600 C 2500 C 1600 C EF rES dS1 0 0 s dr1 0 0 s ou1 Hno uni C dAP 0 0 s PhLd 0 EPSI None tESt OFF Weitere Informationen u...

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