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Emissivity

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This  figure  is  showing  the  typical  temperature  reading  of  a  ratio  thermometer  optris  CTratio  in  both  the  1-
color-  and  the  2-color-mode  in  addiction  of  increasing  contamination  of  the  optical  transmission  path  in-
between the target and the ratio thermometer. Due to the ratio principle the 2 channel signal (upper curve)
stays very stable over a wide range of attenuation up to over 90 %. The signal of the 1 channel mode (lower
curve),  acting  like  in  a  standard  pyrometer  with one  measuring  wavelength only,  is  decreasing  rapidly  with
the contamination of the transmission path.

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Содержание CTratio 1M Series

Страница 1: ...Operator s Manual optris CTratio 1M 2M Fiber Optics Ratio Thermometer...

Страница 2: ...Optris GmbH Ferdinand Buisson Str 14 13127 Berlin Germany Tel 49 30 500 197 0 Fax 49 30 500 197 10 E mail info optris global Internet www optris global...

Страница 3: ...tion 7 1 1 Description 7 1 2 Warranty 9 1 3 Scope of Supply 9 1 4 Maintenance 10 1 5 Safety Note 10 1 6 Cautions 10 1 7 Factory Default Settings 11 2 Technical Data 13 2 1 General Specifications 13 2...

Страница 4: ...anical Installation 20 3 1 Accessories 23 3 2 Laser Sighting 25 4 Electrical Installation 26 4 1 Cable Connections 26 4 2 Ground Connection 28 5 Outputs and Inputs 29 5 1 Analog Output 29 5 2 I O pins...

Страница 5: ...tio Connect 40 8 1 Installation 40 8 2 Communication Settings 42 8 2 1 Serial Interface 42 8 2 2 Protocol 42 9 Basics of Infrared Thermometry 43 9 1 The Ratio Principle 44 10 Emissivity 46 10 1 Defini...

Страница 6: ...e Values 48 10 5 Determination of unknown Slope values 48 10 6 Attenuation 48 Appendix A Emissivity Table Metals 50 Appendix B Emissivity Table Non Metals 52 Appendix C Smart Averaging 53 Appendix D D...

Страница 7: ...ctronics die casting zinc box 1 color mode 1C The 1 color mode is best for measuring the temperature of objects in areas where no sighting obstructions solid gases or dust exist The measurement object...

Страница 8: ...the head this may destroy the system expiry of warranty If you have any problems or questions please contact our service department Read the manual carefully before the initial start up The producer r...

Страница 9: ...r is not liable for consequential damage or in case of a non intended use of the product If a failure occurs during the warranty period the product will be replaced calibrated or repaired without furt...

Страница 10: ...fety Note The CTratio is equipped with an integrated laser that serves to align the optics with the target 3 2 Laser Sighting 1 6 Cautions Avoid static electricity The fiber optical cable has a minimu...

Страница 11: ...Emissivity 1 000 Slope 1 000 Averaging AVG 0 02 s Smart Averaging inactive Hold mode Peak Valley hold inactive 1ML 1MH 1MH1 2ML 2MH 2MH1 Lower limit temperature range C 525 700 1000 275 400 550 Upper...

Страница 12: ...12 Smart Averaging means a dynamic average adaptation at high signal edges activation via software only Appendix C Smart Averaging...

Страница 13: ...ensing Material stainless steel die casting zinc Dimensions length 40 mm thread M18x1 89 mm x 70 mm x 36 6 mm Weight 210 g incl fiber optics 3 m 420 g Fiber optics Single mode fiber stainless steel ar...

Страница 14: ...al 2x 0 4 20 mA 16 bit isolated Digital I O pins 3 programmable in outputs usable as Alarm output open collector output 24 V 1 A Digital input for triggered signal output and peak hold function Output...

Страница 15: ...y 1 2 3 0 3 of reading Temperature resolution 0 1 K Response time 90 signal 4 1 ms 10 s Emissivity 0 050 1 000 adjustable via programming keys or analog input Slope 0 800 1 200 adjustable via programm...

Страница 16: ...2 3 0 3 of reading Temperature resolution 0 1 K Response time 90 signal 4 1 ms 10 s Emissivity 0 050 1 000 adjustable via programming keys or analog input Slope 0 800 1 200 adjustable via programming...

Страница 17: ...ed distances The spot size refers to 90 of the radiation energy The distance is always measured from the front edge of the sensing head As an alternative to the optical diagrams the spot size calculat...

Страница 18: ...nt distance mm 300 500 750 1000 1500 2000 2500 5000 2MH D S 50 1 Spot size mm 6 10 15 20 30 40 50 100 Measurement distance mm 300 500 750 1000 1500 2000 2500 5000 1MH 1MH1 2MH1 D S 100 1 Spot size mm...

Страница 19: ...optics completely Consequently the spot should at all times have at least the same size like the object or should be smaller than that Sensor placement 2C mode In the 2 color mode the sensing head ca...

Страница 20: ...ad or with help of the hex nuts 1 piece included in scope of supply to the mounting bracket available Various mounting brackets which make the adjustment of the sensing head easier can be additionally...

Страница 21: ...Mechanical Installation 21 Electronic box The electronic box is also available with closed cover display and programming keys with no access from outside ACCTCOV...

Страница 22: ...e sensor loosen the knurled screw 1 on the head Now you can focus the device on the head 2 After alignment retighten the knurled screw This secures the focus By turning the rotary button clockwise you...

Страница 23: ...clean at all times from dust smoke fumes and other contaminants in order to avoid reading errors in the 1 color mode These effects can be reduced by using an air purge collar Make sure to use oil fre...

Страница 24: ...24 Rail Mount Adapter for Electronic box With the rail mount adapter the CTratio electronics can be mounted easily on a DIN rail TS35 according EN50022 ACCTRAIL...

Страница 25: ...beside temperature display 4 Electrical Installation 6 Operating At ambient temperatures 50 C inside the electronic box the laser will switch off automatically Do not point the laser directly at the...

Страница 26: ...ease open at first the cover of the electronic box 4 screws Below the display are the screw terminals for the cable connection Designation 8 30 VDC Power supply Opened electronic box with terminal con...

Страница 27: ...f cables with a diameter of 3 to 5 mm Remove the isolation from the cable 40 mm power supply 50 mm signal outputs 60 mm functional inputs Cut the shield down to approximately 5 mm and spread the stran...

Страница 28: ...grounded 4 2 Ground Connection On the mainboard PCB you will find a black wire which is connecting factory default the ground connections GND power supply outputs with the ground of the electronics h...

Страница 29: ...Ratio Connect 8 Software Ratio Connect or the IRmobile app 7 IRmobile app Please do never connect a supply voltage to the analog outputs as this will destroy the output The CTratio is not a 2 wire sen...

Страница 30: ...s the object temperature as long as there is a High level at the I O pin After discontinuation of the High level the last value will be held Hold input digital The last value will be held if there is...

Страница 31: ...y available interfaces plug the interface board into the place provided which is located beside the display In the correct position the holes of the interface match with the thread holes of the electr...

Страница 32: ...nterface The relay board provides two fully isolated switches which have the capability to switch max 60 VDC 42 VACRMS 0 4 A DC AC A red LED shows the closed switch The switching thresholds are in acc...

Страница 33: ...his case the pin acts as an open collector output 24 V 1 A The following signal sources can be selected TProc TRatio T1 T2 Attenuation TDet TBox For a setup of the alarm values selection of the signal...

Страница 34: ...obtains the chosen feature with Up and Down the functional parameters can be selected a change of parameters will have immediate effect If no key is pressed for more than 10 seconds the display autom...

Страница 35: ...6 C fixed SLOPE 0 993 Emissivity ratio 0 993 0 8 1 2 EMISS 1 000 Emissivity 1 000 0 050 1 100 AVG 0 020 Signal output Average 0 020 s AVG 0 000 inactive 0 1 999 9 s MAX A 80 0 Maximum Attenuation 0 1...

Страница 36: ...o 0 0 the function is deactivated HOLD Setup of signal processing By pressing Up or Down the mode can be selected PEAK Setup of Peak hold In this mode the sensor is waiting for descending signals If t...

Страница 37: ...um values which are higher than their predecessors will only be taken over if the temperature has exceeded the Threshold value beforehand If Hysteresis is activated a minima in addition must increase...

Страница 38: ...nd analyse your infrared temperature measurement on a connected smartphone or tablet This app works on most Android devices running 5 0 or higher with a micro USB or USB C port supporting USB OTG On T...

Страница 39: ...the alarm output Change of temperature unit Celsius or Fahrenheit Saving loading of configurations and T t diagrams Restore factory default sensor settings Integrated simulator Supported for Optris p...

Страница 40: ...ink https www optris global downloads software The installation wizard will place a launch icon on the desktop and in the start menu Start Programs RatioConnect If you want to uninstall the software f...

Страница 41: ...tures Graphic display for temperature trends and automatic data logging for analysis and documentation Complete sensor setup and remote controlling Adjustment of signal processing functions Programmin...

Страница 42: ...8 2 Communication Settings 8 2 1 Serial Interface Baudrate 115 2 921 6 kBaud Data bits 8 Parity none Stop bits 1 Flow control off 8 2 2 Protocol All sensors of the CT series are using a binary protoc...

Страница 43: ...ace temperature on the basis of the emitted infrared radiation from an object The most important feature of infrared thermometers is that they enable the user to measure objects contactless Consequent...

Страница 44: ...t spatial peak picking instead of an average temperature A 2 color sensor can be mounted farther away even if the target does not fill the resulting spot size The convenience is that you are not force...

Страница 45: ...less critical with 2 color sensors Low or Changing Emissivity If the emissivity in both wavelengths colors were the same as they would be for any blackbody emissivity 1 0 or greybody emissivity 1 0 b...

Страница 46: ...n its surroundings A low emissivity reflective surfaces carries the risk of inaccurate measuring results by interfering infrared radiation emitted by background objects flames heating systems chamotte...

Страница 47: ...issivity until the measured value corresponds to the temperature of the colored surface CAUTION On all three methods the object temperature must be different from ambient temperature 10 3 Characterist...

Страница 48: ...ermination of unknown Slope values Basically you can use the same methods to determine an unknown slope as described under 10 2 Determination of unknown Emissivity As the CTratio is dedicated for high...

Страница 49: ...f the optical transmission path in between the target and the ratio thermometer Due to the ratio principle the 2 channel signal upper curve stays very stable over a wide range of attenuation up to ove...

Страница 50: ...0 05 0 15 0 05 0 1 oxidized 0 2 0 8 0 2 0 9 0 5 0 8 0 4 0 8 Chrome 0 4 0 4 0 03 0 3 0 02 0 2 Gold 0 3 0 01 0 1 0 01 0 1 0 01 0 1 Haynes alloy 0 5 0 9 0 6 0 9 0 3 0 8 0 3 0 8 Inconel electro polished...

Страница 51: ...ic 0 2 0 4 0 1 0 3 0 1 0 15 0 05 0 15 oxidized 0 8 0 9 0 4 0 7 0 3 0 6 0 2 0 5 Platinum black 0 95 0 9 0 9 Silver 0 04 0 02 0 02 0 02 Steel polished plate 0 35 0 25 0 1 0 1 rustless 0 35 0 2 0 9 0 15...

Страница 52: ...Ceramic 0 4 0 8 0 95 0 8 0 95 0 95 Concrete 0 65 0 9 0 9 0 95 Glass plate 0 2 0 98 0 85 melt 0 4 0 9 0 9 Grit 0 95 0 95 Gypsum 0 4 0 97 0 8 0 95 Ice 0 98 Limestone 0 4 0 98 0 98 Paint non alkaline 0 9...

Страница 53: ...tage of the average function is that fast temperature peaks which are caused by dynamic events are subjected to the same averaging time Therefore those peaks can only be seen with a delay on the signa...

Страница 54: ...54 Appendix D Declaration of Conformity...

Страница 55: ......

Страница 56: ...optris CTratio MA E2019 12 A...

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