Operators manual optris CTlaser - E2011-08-A
Contents
1. E Le anakan Temperature resolution 01 C 7 0 1 C 0 1 C 0 1 C Exposure time 90 signal 1 ms Response time 90 signal 10 ms 10 ms 10 ms Emissivity Gain 0 100 1 100 adjustable via programming keys or software Transmissivity 0 100 1 000 adjustable via programming keys or software Signal processing Average peak hold valley hold adjustable via programming keys or software at ambient temperature 2345 C Accuracy for thermocouple output 2 5 C or 1 e 1 Response time 1s at object temperatures gt 300 C with dynamic adaptation at low signal levels N 3 4 al optris CTlaser E2011 08 A 13 Measurement Specifications G5 models Temperature range scalable Spectral range Optical resolution System accuracy a Repeatability 1 Temperature resolution Response time 90 signal Emissivity Gain Transmissivity Signal processing 1 2 3 ne 1 Response time 1s whichever is greater 14 at ambient temperature 23 5 C Accuracy for thermocouple output 2 5 C or 1 G5L G5H 100 1200 C 250 1650 C 5 2 um 5 2 um 45 1 70 1 Ei Cor L ds 0 5 C or 0 5 9 OPC 0 2 C 7 120 ms 80 ms 0 100 1 100 adjustable via programming keys or software 0 100 1 000 adjustable via programming keys or software Average peak hold valley hold adjustable via programming keys or software optr2. Material Dimensions Weight Cable length Cable diameter Ambient temperature cable Vibration Shock EMI Software optional Sensing head Electronic box IP65 NEMA 4 IP65 NEMA 4 20 85 C 20 85 C 40 85 C 40 85 C 10 95 non condensing 10 95 non condensing stainless steel die casting zinc 100 mm x 50 mm M48x1 5 89 mm x 70 mm x 30 mm 600 g 420g 3 m Standard 8m 15 m 5 mm 105 C max High temperature cable optional 180 C IEC 68 2 6 3G 11 200Hz any axis IEC 68 2 27 50G 11ms any axis 89 336 EWG CompactConnect Laser will turn off automatically at ambient temperatures gt 50 C optris CTlaser E2011 08 A Electrical Specifications Power Supply Current draw Aiming laser Outputs analog Channel 1 Channel 2 LT LTF MT F2 F6 G5 only Alarm output Output impedances mA mV Thermocouple Digital interfaces Relay outputs Functional inputs 8 36 VDC max 160 mA 635 nm 1 mW On Off via programming keys or software selectable 0 4 20 mA 0 5 10 V thermocouple J or K or alarm output Signal source object temperature Head temperature 20 180 C as 0 5 V or 0 10 V output or alarm output Signal source switchable to object temperature or electronic box temperature if used as alarm output Open collector output at Pin AL2 24 V 50 mA max loop resistance 500 O at 8 36 VDC min 100 KO load impedance 200 USB RS232
3. Model Overview The sensors of the CTlaser series are available in the following basic versions Model Model code Measurement range spectral typical applications response CTlaser LT LT 50 to 975 C 8 14 um non metallic surfaces CTlaser F LTF 50 to 975 C 8 14 um fast processes CTlaser 1M 1ML 1MH 1MH1 485 to 2200 C 1 um metals and ceramic surfaces CTlaser 2M 2ML 2MH 2MH1 250 to 2000 C 1 6 um metals and ceramic surfaces CTlaser 3M 3ML 3MH H3 50 to 1800 C 2 3 um metals at low object temperatures from 50 C CTlaser MT MT 200 to 1450 C 3 9 um measurement through flames CTlaser F2 F2 200 to 1450 C 4 24 um measurement of CO2 flame gases CTlaser F6 F6 200 to 1450 C 4 64 um measurement of CO flame gases CTlaser G5 G5L G5H 100 to 1650 C 5 2 um measurement of glass In the following chapters of this manual you will find only the short model codes On the 1M 2M 3M and G5 models the whole measurement range is split into several sub ranges L H H1 etc optris CTlaser E2011 08 A Factory Default Settings The unit has the following presetting at time of delivery Smart Averaging means a Signal output object temperature O 5V dynamic average adaptation Emissivity 0 970 LT LTF MT F2 F6 G5 at high signal edges T 1 000 1M 2M 3M Activation via software only Transmissivity 1 000 gt Appendix C Average time AVG 0 2 s 0 1 s LTF MT F2 F6 inactive 1M 2M 3M Smart Averaging inactive LT
4. 3MH1 H3 SF 300 1 D S focus distance 300 1 3 7 mm 1100 mm 3 mm 1100mm D S far field 48 1 20 178 156 134 112 89 67 52 3 7 59 9 1 12 4 VEN 27 4 mm DO 150 300 450 600 750 900 1000 11001200 1350 1500 2200 mm Optics CF2 3MH1 H3 CF2 300 1 D S focus distance 300 1 0 5 mm 150 mm 0 5mm 150mm D S far field 7 5 1 S 20 135 7 05 7 4 142 21 1 89 4 mm DO 50 100 150 200 250 300 800 mm optris CTlaser E2011 08 A 26 Optics CF3 D S focus distance 300 1 0 7mm 200mm D S far field 10 1 Optics CF4 D S focus distance 300 1 1 5mm 450mm D S far field 22 1 3MH1 H3 CF3 300 1 0 7 mm 200 mm S20 152 103 56 07 59 11 1 DO 50 100 150 200 250 300 3MH1 H3 CF4 300 1 1 5 mm 450 mm S 20 18 16 13 9 11 8 98 7 7 56 36 1 5 3 9 DO 50 100 150 200 250 300 350 400 450 500 62 8 mm 800 mm 18 3 mm 800 mm optris CTlaser E2011 08 A 2 IMT F2 F6 G5L E MT SF 45 1 A 22 i MT F2 F6 G5L Optics SF E S 20 20 8 21 7 22 5 23 4 24 2 25 25 9 27 32 5 384 D S focus distance 45 1 27mm 1200mm a D S far field 25 1 27 mm 1200 mm IG5H Optics SF D S focus distance 70 1 17mm 1200mm D S far field 33 1 17mm 1200mm G5HSF 70 1 S 20 19 6 193 19 18 5 18 2 17 8 17 4 17 21 6 26 3 39 5 44
5. 95 0 8 0 95 Concrete SG Glass plate 0 2 0 98 0 85 melt 0 4 0 9 0 9 Gypsum mg 98095 ce H Limestone ae 0 Pan manana 99085 Paper ache os 08 Plastic gt 50 qm non transparent o os Rubber H H HTH 995 Sa OT nou Soi en es os OS Water L9 Wood mwa 000 US optris CTlaser E2011 08 A 63 Appendix C Smart Averaging The average function is generally used to smoothen the output signal With the adjustable parameter time this function can be optimal adjusted to the respective application One disadvantage 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 signal output The function Smart Averaging eliminates this disadvantage by passing those fast events without averaging directly through to the signal output Signal graph without Smart Averaging function optris CTlaser E2011 08 A 64
6. RS485 CAN Profibus DP Ethernet optional plug in modules 2 x 60 VDC 42 VACrwms 0 4 A optically isolated optional plug in module F1 F3 software programmable for the following functions external emissivity adjustment ambient temperature compensation trigger reset of hold functions optris CTlaser E2011 08 A Measurement Specifications LT models LT LTF Temperature range scalable 50 975 C 50 975 C Spectral range 8 14 um 8 14 um Optical resolution 75 1 50 1 System accuracy 2 1 C or 1 96 41 5 C or 1 5 Repeatability 0 5 C or 0 5 1 C or 1 Temperature resolution 0 1 C 0 5 C Response time 90 signal 120 ms 9 ms Warm up time 10 min 10 min Emissivity Gain 0 100 1 100 adjustable via programming keys or software Transmissivity 0 100 1 000 adjustable via programming keys or software Signal processing Average peak hold valley hold adjustable via programming keys or software at ambient temperature 23 5 C whichever is greater Accuracy for thermocouple output 2 5 C or 1 N 3 4 at object temperatures gt 0 C at object temperatures gt 20 C optris CTlaser E2011 08 A Measurement Specifications 1M models Temperature range scalable Spectral range Optical resolution System accurac iio Repeatability We Temperature resolution Exposure time 90 signal Emissivity Gain Transmissivity Sig
7. cable connection Connector version This version has a connector plug integrated in the sensor backplane Please use the original ready made fitting connection cables which are optionally available Please note the pin assignment of the connector see next page For the Cooling jacket the connector version is needed optris CTlaser E2011 08 A 3 Pin assignment of connector plug connector version only PIN designation wire color original sensor cable 1 Detector signal yellow 2 Temperature probe head brown 3 Temperature probe head white 4 Detector signal green 5 Ground Laser grey 6 Power supply Laser pink 7 not used Designation models LT LTF MT F2 F6 G5 8 36VDC Power supply GND Ground OV of power supply GND Ground OV of internal in and outputs mmm OUT AMB Analog output head temperature mV K wd OUT TC Analog output thermocouple J or K Loo TTT OUT mV mA Analog output object temperature mV or mA F1 F3 Functional inputs AL2 Alarm 2 Open collector output 3V SW PINK Power supply Laser GND GREY Ground Laser BROWN Temperature probe head ON 2224000700 TO WHITE Temperature probe head 4 GREEN Detector signal YELLOW Detector signal Opened electronic box LT LTF MT F2 F6 G5 with terminal connections optris CTlaser E2011 08 A 38 Designation models 1M 2M 3M 8 36VDC GND GND AL2 OUT TC OUT
8. mV mA F1 F3 GND 3V SW GND BROWN WHITE GREEN YELLOW Power supply Power supply Ground 0V of power supply Ground OV of internal in and outputs Alarm 2 Open collector output Analog output thermocouple J or K Analog output object temperature mV or mA Functional inputs Ground OV PINK Power supply Laser GREY Ground Laser Temperature probe head NTC Head ground Head power Detector signal ow nnn NN L V 5 V uw E 225252 Opened electronic box 1M 2M 3M with terminal connections Please use a power supply unit with an output voltage of 8 36 VDC which can supply 160 mA CAUTION Please do never connect a supply voltage to the analog outputs as this will destroy the output The CTlaser is not a 2 wire sensor optris CTlaser E2011 08 A 39 Cable Assembling The cable gland M12x1 5 allows the use of 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 strands out Extract about 4 mm of the wire isolation and tin the wire ends Place the pressing screw the rubber washer and the metal washers of the cable gland one after the other onto the prepared cable end Spread the strands and fix the shield between two of the metal washers Insert the cable into the cable gland until the limit stop Screw the cap tight Every single wire ma
9. place a special plastic sticker emissivity dots part number ACLSED onto the measuring object which covers it completely Now set the emissivity to 0 95 and take the temperature of the sticker Afterwards determine the temperature of the adjacent area on the measuring object and adjust the emissivity according to the value of the temperature of the sticker optris CTlaser E2011 08 A 59 b Cove a part of the surface of the measuring object with a black flat paint with an emissivity of 0 98 Adjust the emissivity of your infrared thermometer to 0 98 and take the temperature of the colored surface Afterwards determine the temperature of a directly adjacent area and modify the emissivity 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 Characteristic Emissivities In case none of the methods mentioned above help to determine the emissivity you may use the emissivity tables Appendix A and B These are average values only The actual emissivity of a material depends on the following factors temperature measuring angle geometry of the surface thickness of the material constitution of the surface polished oxidized rough sandblast spectral range of the measurement transmissivity e g with thin films optris CTlaser E2011 08 A 60 Appendix A Emissivity Table Metals MA aca Spectral r
10. 00 5000 6000 6750 mm optris CTlaser E2011 08 A 20 1MH 1MH1 2MH 2MH1 Optics SF D S focus distance 300 1 3 7mm 1100mm D S far field 48 1 1ML 2ML Optics SF D S focus distance 150 1 7 3mm 1100mm D S far field 42 1 1MH 1MH1 2MH 2MH1 Optics CF2 D S focus distance 300 1 0 5mm 150mm D S far field 7 5 1 1ML 2ML Optics CF2 D S focus distance 150 1 1mm 150mm D S far field 7 1 1MH 2MH SF 300 1 3 7 mm 1100 mm o 12 109 YB 66 To 63 52459751 73 GA 13 16 6 mm 7 3 mm 1100 mm 1ML 2MLSF 20 18 3 165 148 13 114 96 8 5 7 3 98 13 5 17 3 150 1 DO 150 300 450 600 750 900 1000 1100 1200 1350 1500 1MH 2MH CF2 s 12 82 44 0 46 89 13 300 1 0 5 mm 150 mm 23 5 1750 46 4 30 mm 2000 mm 54 8 mm 1 mm 150 mm 1ML 2ML CF2 3s20 13773 1 8 15 22 150 1 D 0 50 100 150 200 250 300 optris CTlaser E2011 08 A 92 mm 800 mm 21 1MH 1MH1 2MH 2MH1 Optics CF3 D S focus distance 300 1 0 7mm 200mm D S far field 10 1 1ML 2ML Optics CF3 D S focus distance 150 1 1 3mm 200mm D S far field 10 1 1MH 1MH1 2MH 2MH1 Optics CF4 D S focus distance 300 1 1 5mm 450mm D S far field 22 1 1ML 2ML Optics CF4 D S focus distance 150 1 3mm 450mm D S far field 20 1 22 1MH 2MH CF3 12 92 64 36 07 39 7 1 300 1 0 7 mm 2
11. 00 mm 38 8 mm 1 3 mm 200 mm 1ML 2ML CF3 20 154107 6 1 3 67 12 22 6 33 3 150 1 DO 50 100 150 200 250 300 400 500 1MH 2MH CF4 s 12 109 97 85 74 62 5 39 27 15 3 300 1 1 5 mm 450 mm 3 mm 450 mm 1ML 2ML CFA s 20 18 1 16 3 14 4 125 10 6 87 68 49 3 56 150 1 D O 50 100 150 200 250 300 350 400 450 500 optris CTlaser E2011 08 A 44 600 10 7 600 55 700 15 8 700 65 mm 800 mm 12 mm 21 mm 800 mm MH Optics SF D S focus distance 100 1 11mm 1100mm D S far field 38 1 3ML Optics SF D S focus distance 60 1 18 3mm 1100mm D S far field 30 1 BMH Optics CF1 D S focus distance 100 1 0 7mm 70mm D S far field 3 1 3ML Optics CF1 D S focus distance 60 1 1 2mm 70mm D S far field 3 1 3MH SF 100 1 11 mm 1100 mm far field 38 1 14 12 11 13 16 far field 30 1 18 3 mm 1100 mm 3ML SF S 20 60 1 D 0 3MH CF1 100 1 0 7 mm 70 mm far field 3 1 far field 3 1 1 2 mm 70 mm 20 150 20 20 20 19 19 19 183 19 25 30 300 450 600 750 900 1000 1100 1200 1350 1500 3ML CF1 S 20 9 31 210 3 25 5 40 5 56 60 1 D 0 40 70 100 150 200 250 300 optris CTlaser E2011 08 A 40 1750 53 mm 2200 mm BMH Optics CF2 20 14 7 7 1 5 87 16 D S focus distance 100 1 1 5 mm 150 mm 1 5mm 150mm far field
12. 08 A 33 Mounting Bracket Mounting bracket adjustable in two axes ACCTLAB This adjustable mounting bracket allows an adjustment of the sensor in two axis optris CTlaser E2011 08 A 34 Water Cooled Housing To avoid condensation on the optics an air purge collar is recommended Water cooled housing ACCTLW Hose connection 6x8 mm Thread fitting G 1 8 inch The sensing head can be used at ambient temperatures up to 85 C without cooling For applications where the ambient temperature can reach higher values the usage of the optional water cooled housing is recommended operating temperature up to 175 C The sensor should be equipped with the optional high temperature cable operating temperature up to 180 C optris CTlaser E2011 08 A 35 Rail Mount Adapter for Electronic box With the rail mount adapter the CTlaser electronics can be mounted easily on a DIN rail TS35 according EN50022 35mm rail Rail mount adapter ACCTRAIL b All accessories can be ordered using the according part numbers in brackets optris CTlaser E2011 08 A 30 Electrical Installation Cable Connections Basic version The basic version is supplied with a connection cable connection sensing head electronics For the electrical installation of the CTlaser please open at first the cover of the electronic box 4 screws Below the display are the screw terminals for the
13. 08 A of Basics of Infrared Thermometry Depending on the temperature each object emits a certain amount of infrared radiation A change in the temperature of the object is accompanied by a change in the intensity of the radiation For the measurement of thermal radiation infrared thermometry uses a wave length ranging between 1 u and 20 um The intensity of the emitted radiation depends on the material This material contingent constant is described with the help of the emissivity which is a known value for most materials see enclosed table emissivity Infrared thermometers are optoelectronic sensors They calculate the surface 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 Consequently these products help to measure the temperature of inaccessible or moving objects without difficulties Infrared thermometers basically consist of the following components lens Spectral filter detector electronics amplifier linearization signal processing The specifications of the lens decisively determine the optical path of the infrared thermometer which is characterized by the ratio Distance to Spot size The spectral filter selects the wavelength range which is relevant for the temperature measurement The detector in cooperation with the processing electronics transforms the emitted infrared radia
14. 1 and 2 if used as The CTlaser has the following Alarm features alarm output have a fixed hysterese of 2 K Output channel 1 and 2 channel 2 on LT G5 only To activate the according output channel has to be switched into digital mode For this purpose the software CompactConnect is required Visual Alarms These alarms will cause a change of the color of the LCD display and will also change the status of the optional relays interface In addition the Alarm 2 can be used as open collector output at pin AL2 on the mainboard 24V 50mA From factory side the alarms are defined as follows Both of these alarms will have effect on the LCD color Alarm 1 Norm closed Low Alarm Alarm 2 Norm open High Alarm BLUE alarm 1 active RED alarm 2 active GREEN no alarm active For extended setup like definition as low or high alarm via change of normally open closed selection of the signal source TObj THead TBox a digital interface e g USB RS232 including the software CompactConnect is needed optris CTlaser E2011 08 A 47 Operating After power up the unit the sensor starts an initializing routine for some seconds During this time the display will show INIT After this procedure the object temperature is shown in the display The display backlight color changes according to the alarm settings gt Alarms Visual Alarms Sensor Setup The programming keys Mode and enable the user to set the sensor on site The
15. 300 Optics CF4 D S focus distance 75 1 5 9mm 450mm D S far field 18 1 20 185 17 15 5 14 12 5 11 9 7 5 5 9 D 0 50 100 150 200 250 300 350 400 450 500 optris CTlaser E2011 08 A 800 mm 800 mm 17 LTF Optics SF D S focus distance 50 1 24mm 1200mm D S far field 20 1 LTF Optics CF1 D S focus distance 50 1 1 4mm 70mm D S far field 1 5 1 18 S 20 205 21 21 22 22 23 23 5 24 29 5 35 D 0 150 300 450 600 750 900 1050 1200 1350 1500 i H 1 S 20 10 1 4 11 D 0 40 70100 150 200 250 300 optris CTlaser E2011 08 A 2100 2400 mm LTF Optics CF2 D S focus distance 50 1 3mm 150mm D S far field 6 1 LTF Optics CF3 D S focus distance 50 1 4mm 200mm D S far field 8 1 all WIN optris CTlaser E2011 08 A 103 mm 800 mm 800 mm 19 LTF Optics CF4 D S focus distance 50 1 9mm 450mm D S far field 16 1 AS 18 165 15 14 13 11 5 10 32 mm 50 100 150 200 250 300 350 400 450 500 800 mm 1MH 1MH1 2MH 2MH1 Optics FF 1MH 2MH FF 12 12 12 147 300 1 D S focus distance 300 1 12mm 3600mm 12 mm 3600 mm D S far field 115 1 1ML 2ML Optics FF D S focus distance 150 1 24mm 3600mm D S far field 84 1 24 mm 3600 mm 1ML 2ML FF 20 205 21 215 22 225 23 234 29 41 534 62 5 mm 150 1 D O 450 900 1350 1800 2250 27003000 3600 40
16. 6 5 mm 450 mm G5HCF4 701 S 20 185 17 155 14 125 11 95 8 5 E 27 1 mm D O 50 100 150 200 250 300 350 400 450 500 800 mm optris CTlaser E2011 08 A 30 Mechanical Installation The CTlaser is equipped with a metric M48x1 5 thread and can be installed either directly via the sensor thread or with help of the supplied mounting nut standard and fixed mounting bracket standard to a mounting device available Te a x co t CTlaser sensing head Make sure to keep the optical path clear of any obstacles optris CTlaser E2011 08 A 3 a E J M 12x1 5 max 120 Electronic box For an exact alignment of the head to the object please activate the integrated double laser gt Operating Laser sighting Mounting bracket adjustable in one axis ACCTLFB standard scope of supply optris CTlaser E2011 08 A 32 Accessories Air Purge Collar The lens must be kept clean at all times from dust smoke fumes and other contaminants in order to avoid reading errors These effects can be reduced by using an air purge collar Make sure to use oil free technically clean air only The needed amount of air approx 2 10 I min depends on the application and the installation conditions on site Tol 2 x co t Air purge collar ACCTLAP Hose connection 6x8 mm Thread fitting G 1 8 inch optris CTlaser E2011
17. 7 1 D S far field 7 1 3ML Optics CF2 D S focus distance 60 1 2 5mm 150mm D S far field 6 1 far field 6 1 2 5 mm 150 mm 3ML CF2 S 20 142 84 2 5 10 175 25 100 mm 60 1 DO 50 100 150 200 250 300 800 mm BMH Optics CF3 3MH CF3 20 155 11 6 5 100 1 D S focus distance 100 1 2 mm 200 mm 2mm 200mm far field 9 1 D S far field 9 1 3ML Optics CF3 D S focus distance 60 1 3 4mm 200mm D S far field 8 1 far field 8 1 3 4 mm 200 mm 3ML CF3 S20 16 11 7 7 6 3 4 9 3 15 1 74 mm 60 1 DO 50 100 150 200 250 300 800 mm optris CTlaser E2011 08 A 24 BMH Optics CF4 3MH CF4 S 20 18 3 16 6 14 9 13 2 11 4 97 8 63 45 7 3 100 1 D S focus distance 100 1 4 5 mm 450 mm 4 5mm 450mm far field 19 1 D S far field 19 1 3ML Optics CF4 D S focus distance 60 1 7 5mm 450mm D S far field 17 1 far field 17 1 7 5mm 450 mm 3ML CF4 S 20 18 7 17 3 15 9 14 5 13 1 11 7 103 9 7 5 10 6 23 29 mm 60 1 D O 50 100 150 200 250 300 350 400 450 500 700 800 mm Optics FF 3MH1 H3 FF 300 1 D S focus distance 300 1 12 mm 3600 mm 12mm 3600mm D S far field 115 1 19 18 17 15 14 134 A2 16 5 33 4 40 mm DO 450 900 1350 1800 2250 2700 3000 3600 4000 6000 6750 mm optris CTlaser E2011 08 A 25 Optics SF
18. 8 54 mm D O 150 300 450 600 750 900 1050 1200 1350 1500 1800 2100 2400 mm MT F2 F6 GSL Optics CF1 ES D S focus distance 45 1 1 6mm 70mm LA D S far field 3 1 1 6 mm 70 mm G5H Optics CF1 D S focus distance 70 1 1mm 70mm H D S far field 3 4 1 1 mm 70 mm G5HCF1 70 1 S 20 9 1 10 D O 40 D 0 40 70100 150 200 250 300 400 500 600 700 80 100 150 200 250 300 optris CTlaser E2011 08 A 28 MT F2 F6 G5L Optics CF2 D S focus distance 45 1 3 4mm 150mm D S far field 6 1 IG5H Optics CF2 D S focus distance 70 1 2 2mm 150mm D S far field 6 8 1 MT F2 F6 G5L Optics CF3 D S focus distance 45 1 4 5mm 200mm D S far field 8 1 G5H Optics CF3 D S focus distance 70 1 2 9mm 200mm D S far field 9 2 1 MT CF2 45 1 8 20 145 9 3 4 F2 F6 G5L 3 4mm 150 mm LLLI L 2 2 mm 150 mm G5HCF2 70 1 S 20 14 2 2 9 6 17 24 5 D O 50 100 150 F2 F6 G5L 4 5 mm 200 mm 2 9 mm 200 mm G5HCF3 70 1 S 20 16 72 29 87 144 D 0 50 100 150 200 250 300 optris CTlaser E2011 08 A 89 2 105 mm 99 mm 800 mm 71 6 mm 800 mm 29 AG MT CF4 45 1 y j 2 11 d MT F2 F6 G5L Optics CF4 F4 S 20 19 18 17 15 6 14 5 13 4 12 3 11 1 10 13 4 D S focus distance 45 1 10mm 450mm x D S far field 15 1 10 mm 450 mm G5H Optics CF4 D S focus distance 70 1 6 5mm 450mm D S far field 17 7 1
19. G5 Peak hold inactive Valley hold inactive LT LTF 1ML 1MH 1MH1 2ML 2MH 2MH1 3ML 3MH Lower limit temperature range C 0 485 650 800 250 385 490 50 100 Upper limit temperature range C 500 1050 1800 2200 800 1600 2000 400 600 Lower alarm limit C 30 600 800 1200 350 500 800 100 250 normally closed Upper alarm limit C 100 900 1400 1600 600 1200 1400 300 500 normally open Lower limit signal output OV Upper limit signal output 5 V Temperature unit C Ambient temperature compensation internal head temperature probe on LT and LTF output at OUT AMB as 0 5 V signal Baud rate kBaud 115 Laser inactive optris CTlaser E2011 08 A Lower limit temperature range C Upper limit temperature range C Lower alarm limit C normally closed Upper alarm limit C normally open Lower limit signal output Upper limit signal output Temperature unit Ambient temperature compensation 3MH1 3MH2 150 200 900 1200 350 550 600 1000 OV 5V C internal head temperature probe on MT F2 F6 and G5 output at OUT AMB as 0 5 V signal Baud rate kBaud Laser 115 inactive 3MH3 350 1800 750 1200 MT 200 1450 400 1200 optris CTlaser E2011 08 A F2 200 1450 400 1200 F6 200 1450 400 1200 G5L 100 1200 200 500 G5H 250 1650 350 900 Technical Data General Specifications Environmental rating Ambient temperature Storage temperature Relative humidity
20. aired without further charges The freight costs will be paid by the sender The manufacturer reserves the right to exchange components of the product instead of repairing it If the failure results from misuse or neglect the user has to pay for the repair In that case you may ask for a cost estimate beforehand optris CTlaser E2011 08 A Content Description Scope of Supply Maintenance Cautions Model Overview Factory Default Settings Technical Data General Specifications Electrical Specifications Measurement Specifications LT models Measurement Specifications 1M models Measurement Specifications 2M models Measurement Specifications 3M models Measurement Specifications 3M MT F2 F6 Measurement Specifications G5 models Optical Charts Mechanical Installation Accessories Air Purge Collar Mounting Bracket Water Cooled Housing Rail Mount Adapter for Electronic box Electrical Installation Cable Connections Ground Connection Exchange of the Sensing Head Exchange of the Head Cable Outputs and Inputs Analog Outputs Digital Interfaces Relay Outputs Functional Inputs Alarms Operating Sensor Setup Laser Sighting Error messages Software CompactConnect Installation Communication Settings Basics of Infrared Thermometry Emissivity Definition Determination of unknown Emissivities Characteristic Emissivities Appendix A Emissivity Table Metals Appendix B Emissivity Table No
21. ambient radiation will be reflected from the object surface To compensate this impact this function allows the setup of a fixed value which represents the ambient radiation optris CTlaser E2011 08 A lf XHEAD is shown the ambient temperature value will be taken from the head internal probe To return to XHEAD please press and together Especially if there is a big difference between the ambient temperature at the object and the head temperature the use of Ambient temperature compensation is recommended Setup of the Multidrop address In a RS485 network each sensor will need a specific address This menu item will only be shown if a RS485 interface board is plugged in B 9 6 Setup of the Baud rate for digital data transfer optris CTlaser E2011 08 A 53 Laser Sighting The CTlaser has an integrated double laser aiming Both of the laser beams are marking the exactly location and size of the measurement spot independent from the distance At the focus point of the according optics gt Optical Charts both lasers are crossing and showing as one dot the minimum spot This enables a perfect alignment of the sensor to the object WARNING Do not point the laser directly at the eyes of persons or animals Do not stare into the laser beam Avoid indirect exposure via reflective surfaces The laser can be activated deactivated via the programming keys on the unit or via the software If the laser is activated a yello
22. ate 9 6 115 2 kBaud adjustable on the unit or via software Data bits 8 Parity none Stop bits 1 Flow control off Protocol All sensors of the CTlaser series are using a binary protocol Alternatively they can be switched to an ASCII protocol To get a fast communication the protocol has no additional overhead with CR LR or ACK bytes ASCII protocol To switch to the ASCII protocol please use the following command Decimal 131 HEX 0x83 Data Answer byte 1 Result 0 Binary protocol 1 ASCII protocol optris CTlaser E2011 08 A 56 Saving of parameter settings After power on of the CTlaser sensor the flash mode is active It means changed parameter settings will be saved in the internal Flash EEPROM and will be kept also after the sensor is switched off In case settings should be changed quite often or continuously the flash mode can be switched off by using the following command Decimal 112 HEX 0x70 Data Answer byte 1 Result 1 Data will not be written into the flash memory 2 Data will be written into the flash memory If the flash mode is deactivated all settings will only be kept as long as the unit is powered If the unit is switched off and powered on again all previous settings are lost The command Ox71 will poll the current status You will find a detailed protocol and command description on the software CD CompactConnect in the directory Commands optris CTlaser E2011
23. current measuring value or the chosen feature is displayed With the operator obtains the chosen feature with and 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 automatically shows the calculated object temperature according to the signal processing Display Pressing the Mode button again recalls the last called function on the display The signal processing features Peak hold and Valley hold cannot be selected simultaneously Factory Default Setting O A v To set the CTlaser back to the factory default settings please press at first the IDownl key and then the IMode key and keep both pressed for approx 3 seconds Mode Up Down The display will show RESET for confirmation optris CTlaser E2011 08 A 48 Display Mode Sampe AdjustmentRange S ON asesino onor ooo S oo 1142 3C Object temperature after signal processing 142 3 C BSCE Boxtemperature 25 C e F1 42CA Current object temperature aae ined UO Signal output channel 1 0 5 V O 0 20 0 20 mA D 4 20 4 20 mA O MV5 0 5 V O MV10 0 10 V O TCJ thermocouple type J O TCK thermocouple type K A 0 2 Signal output Average 0 2 s A inactive 0 1 999 9 s IP Signal output Peak hold inactive P inactive 0 1 999 9 s P 00 00 00 00 infinite V inactive 0 1 999 9 s V oo oo oo oo infinite
24. esponse Aom tum sim sum Aluminium non oxidized 0 1 0 2 0 02 0 2 0 02 0 2 0 02 0 1 polished 0 1 0 2 0 02 0 1 0 02 0 1 0 02 0 1 roughened 0 2 0 6 0 1 0 4 0 1 0 3 oxidized 0 4 0 2 0 4 0 2 0 4 polished 0 01 0 05 0 01 0 05 0 01 0 05 roughened 0 4 0 3 0 3 oxidized 0 6 0 5 0 5 polished 0 05 0 03 0 03 0 03 roughened 0 05 0 2 0 05 0 2 0 05 0 15 0 05 0 1 oxidized 0 2 0 9 0 5 0 8 0 4 0 8 0 01 0 1 0 01 0 1 0 01 0 1 0 03 0 3 0 02 0 2 0 6 0 9 0 3 0 8 0 3 0 8 electro polished sandblast 0 3 0 6 oxidized non oxidized 0 05 0 25 0 05 0 2 rusted 0 5 0 8 0 5 0 7 oxidized 0 6 0 9 0 5 0 9 forged blunt 0 9 0 9 molten Iron casted non oxidized oxidized optris CTlaser E2011 08 A 61 Spectralresponse 10um 16um Sim smm polished 0 05 0 2 0 05 0 2 0 05 0 1 roughened 0 6 0 4 0 4 oxidized 0 3 0 7 0 2 0 7 0 2 0 6 Mercury 005 015 005015 005015 Molybdenum non oxidized 0 25 0 35 0 1 0 3 0 1 0 15 0 1 Nickel electrolytic 0 2 0 4 0 1 0 3 0 1 0 15 0 05 0 15 Platinum black o 995 09 09 polished plate 0 1 rustless 0 15 0 8 heavy plate 0 5 0 7 cold rolled 0 8 0 9 oxidized 0 7 0 9 Titanium polished 0 5 0 75 0 3 0 5 0 1 0 3 0 05 0 2 Zinc polished 0 5 0 05 0 03 0 02 oxidized 0 6 0 15 0 1 0 1 optris CTlaser E2011 08 A 62 Appendix B Emissivity Table Non Metals typical Emissivity Spectral response asalt ue 07 non oxidized 8 0 0 8 0 9 0 8 0 9 Carborundum LT 0 95 0 8 0
25. ic box The calibration code consists of five blocks with 4 characters each Example EKJO 0OUD 0A1B A17U 930Z block1 block2 block3 block4 block5 For entering the code please press the and key keep pressed and then the key The display shows HCODE and then the 4 signs of the first block With and each sign can be changed switches to the next sign or next block After you have modified the head code a reset is necessary to activate the change gt Operating optris CTlaser E2011 08 A 42 You will find the calibration code on a label fixed on the head Please do not remove this label or make sure the code is noted anywhere The code is needed if the electronic has to be exchanged Exchange of the Head Cable The sensing head cable can also be exchanged if necessary For a dismantling on the head side please open at first the cover plate on the back side of the head Then please remove the terminal block and loose the connections After the new cable has been installed please do the same steps in reverse order Please take care the cable shield is properly connected to the head housing As exchange cable a cable type with same wire profiles and specification should be used to avoid influences on the accuracy optris CTlaser E2011 08 A 43 Outputs and Inputs Analog Outputs The CTlaser has two analog output channels Output channel 1 This output is used for the object temperature The se
26. ing optris CTlaser E2011 08 A 51 E O SEE O1 Setup of the Lower limit of temperature range The minimum difference between lower and upper limit is 20 K If you set the lower limit to a value 2 upper limit the upper limit will be adjusted to lower limit 20 K automatically Setup of the Upper limit of the temperature range The minimum difference between upper and lower limit is 20 K The upper limit can only be set to a value lower limit 20 K Setup of the Lower limit of the signal output This setting allows an assignment of a certain signal output level to the lower limit of the temperature range The adjustment range corresponds to the selected output mode e g 0 5 V Setup of the Upper limit of the signal output This setting allows an assignment of a certain signal output level to the upper limit of the temperature range The adjustment range corresponds to the selected output mode e g 0 5 V Setup of the Temperature unit C or F Setup of the Lower alarm limit This value corresponds to Alarm 1 gt Alarms Visual Alarms and is also used as threshold value for relay 1 if the optional relay board is used Setup of the Upper alarm limit This value corresponds to Alarm 2 gt Alarms Visual Alarms and is also used as threshold value for relay 2 if the optional relay board is used Setup of the Ambient temperature compensation In dependence on the emissivity value of the object a certain amount of
27. ing keys or software optris CTlaser E2011 08 A 11 Measurement Specifications 3M models 3ML 3MH 3MH1 3MH2 Temperature range scalable 50 400 C 100 600 C 150 900 C 200 1200 C Spectral range 2 3 um 2 3 um 2 3 um 2 3 um Optical resolution 60 1 100 1 300 1 300 1 System accuracy 0 3 96 of reading 2 C Repeatability 7 0 1 96 of reading 1 C Temperature resolution Od C an Exposure time 90 Yo signal nn uu Emissivity Gain 0 100 1 100 adjustable via programming keys or software Transmissivity 0 100 1 000 adjustable via programming keys or software Signal processing Average peak hold valley hold adjustable via programming keys or software TObject THead 25 C at ambient temperature 2345 C 2 Accuracy for thermocouple output 2 5 C or 1 s 1 Response time 1s gt with dynamic adaptation at low signal levels optris CTlaser E2011 08 A 12 Measurement Specifications 3M MT F2 F6 models 3MH3 MT F2 F6 Temperature range scalable 350 1800 C 200 1450 C 200 1450 C 200 1450 C Spectral range 2 3 um 3 9 um 4 24 um 4 64 um Optical resolution 300 1 45 1 45 1 45 1 System accuracy 2 0 3 of read 2 C Pl Press ee Repeatability 0 1 96 of read 1 20
28. is CTlaser E2011 08 A Optical Charts The following optical charts show the diameter of the measuring spot in dependence on the distance between measuring object and sensing head The spot size refers to 90 of the radiation energy The distance is always measured from the front edge of the sensing head The size of the measuring object and the optical resolution of the infrared thermometer determine the maximum distance between sensing head and measuring object In order to prevent measuring errors the object should fill out the field of view of the optics completely Consequently the spot should at all times have at least the same size like the object or should be smaller than that D Distance from front of the sensing head to the object S Spot size Optics SF D S focus distance 75 1 16mm 1200mm D S far field 34 1 20 195 19 185 18 17 5 17 165 16 20 5 25 0 150 300 450 600 750 900 1050 1200 1350 1500 1800 2100 2400 mm optris CTlaser E2011 08 A 15 Optics CF1 D S focus distance 75 1 0 9mm 70mm D S far field 3 5 1 nr S 20 9 0 9 10 D 0 40 70100 150 200 250 300 Optics CF2 D S f dist 75 1 1 9 150 TH focus distance mm mm N I D S far field 2 7 1 i 9 16 5 24 50 100 150 200 250 300 800 mm optris CTlaser E2011 08 A 16 LT Optics CF3 D S focus distance 75 1 2 75mm 200mm D S far field 9 1 7 2 75 85 14 50 100 150 200 250
29. lection of the output signal can be done via the programming keys Operating The CompactConnect software allows the programming of output channel 1 as an alarm output CTlaser board According to the chosen output signal there are different connection pins on the mainboard OUT mV mA or OUT TC Output channel 2 on LT G5 only The connection pin OUT AMB is used for output of the head temperature 20 180 C as 0 5 V or 0 10 V signal The CompactConnect software allows the programming of output channel 2 as an alarm output Instead of the head temperature THead also the object temperature TObj or electronic box temperature TBox can be selected as alarm source optris CTlaser E2011 08 A 44 Digital Interfaces CTlaser sensors can be optionally equipped with an USB RS232 RS485 CAN Bus Profibus DP or Ethernet interface If you want to install an interface 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 electronic box Now press the board down to connect it and use both M3x5 screws for fixing it Plug the preassembled interface cable with the terminal block into the male connector of the interface board INTERFACE o USB a 3 3 d e 2 i The Ethernet interface reguires at minimum 12 V supply voltage Please pay attention to the notes on the according interface
30. manuals Relay Outputs The CTlaser can be optionally eguipped with a relay output The relay board will be installed the same way as the digital interfaces A simultaneous installation of a digital interface and the relay outputs is not possible The relay board provides two fully isolated switches which have the capability to switch max 60 VDC 42 VACrys 0 4 A DC AC red LED shows the closed switch optris CTlaser E2011 08 A 45 The switching thresholds are in accordance with the values for alarm 1 and 2 gt Alarms Visual Alarms The alarm values are set according to the Factory Default Settings To make advanced settings change of low and high alarm a digital interface USB RS232 and the software CompactConnect is needed Functional Inputs The three functional inputs F1 F3 can be programmed with the CompactConnect software only F1 digital trigger a O V level on F1 resets the hold functions F2 analog external emissivity adjustment 0 10 V 0 V gt 0 1 9 V gt c 1 10 V gt c 1 1 F3 analog external compensation of ambient temperature the range is scalable via software 0 10 V gt 40 900 C preset range 20 200 C F1 F3 digital emissivity digital choice via table A non connected input represents F1 High F2 F32Low High level 2 3 V 36 V Low level lt 0 4 V 36 V optris CTlaser E2011 08 A 46 Alarms All alarms alarm 1 alarm 2 output channel
31. n Metals Appendix C Smart Averaging optris CTlaser E2011 08 A Description The sensors of the optris CTlaser series are noncontact infrared temperature sensors They calculate the surface temperature based on the emitted infrared energy of objects gt Basics of Infrared Thermometry An integrated double laser aiming marks the real measurement spot location and spot size at any distance on the object surface The sensor housing of the CTlaser head is made of stainless steel IP65 NEMA 4 rating the sensor electronics is placed in a separate box made of die casting Zinc The CTlaser sensing head is a sensitive optical system Please use only the thread for mechanical installation Avoid mechanical violence on the head this may destroy the system expiry of warranty Scope of Supply CTlaser sensing head with connection cable and electronic box Mounting nut and mounting bracket fixed Operators manual Maintenance Lens cleaning Blow off loose particles using clean compressed air The lens surface can be cleaned with a compounds which contain solvents neither soft humid tissue moistened with water or a water based for the lens nor for the housing glass cleaner PLEASE NOTE Never use cleaning optris CTlaser E2011 08 A Cautions Avoid abrupt changes of the ambient temperature In case of problems or questions which may arise when you use the CTlaser please contact our service department
32. nal processing 1 2 3 4 c 1 Response time 1 s 10 at ambient temperature 2345 C Accuracy for thermocouple output 2 5 C or 1 96 with dynamic adaptation at low signal levels 1ML 1MH 1MH1 485 1050 C 650 1800 C 800 2200 C 1 um 1 um 1 um 150 1 300 1 300 1 0 3 96 of reading 2 C 0 1 of reading HTO eee 0 100 1 100 adjustable via programming keys or software 0 100 1 000 adjustable via programming keys or software Average peak hold valley hold adjustable via programming keys or software optris CTlaser E2011 08 A Measurement Specifications 2M models Temperature range scalable Spectral range Optical resolution System accurac iio Repeatability We Temperature resolution Exposure time 90 signal Emissivity Gain Transmissivity Signal processing 1 2 3 ne 1 Response time 1s at ambient temperature 23 5 C Accuracy for thermocouple output 2 5 C or 1 with dynamic adaptation at low signal levels 2ML 2MH 2MH1 250 800 C 385 1600 C 490 2000 C 1 6 um 1 6 um 1 6 um 150 1 300 1 300 1 0 3 of reading 2 C 0 1 9o of reading 1 6 0 100 1 100 adjustable via programming keys or software 0 100 1 000 adjustable via programming keys or software Average peak hold valley hold adjustable via programm
33. optris CTlaser LT LTF 1M 2M 3M MT F2 F6 G5 Infrared Sensor N y Operators manual tri infrared thermometers CE Conformity C Optris GmbH The product complies with the following standards Ferdinand Buisson Str 14 D 13127 Berlin EMC EN 61326 1 2006 Basic requirements GERMANY EN 61326 2 3 2006 Safety Regulations EN 61010 1 2001 Tel 49 30 500 197 0 Laser safety EN 60825 1 2007 Fax 49 30 500 197 10 The product accomplishes the requirements of the EMC Directive 2004 108 EG E mail info optris de and of the Low Voltage Directive 2006 95 EG Internet www optris com Read the manual carefully before the initial start up The producer reserves the right to change the herein described specifications in case of technical advance of the product References to other chapters are marked as Warranty Each single product passes through a quality process Nevertheless if failures occur please contact the customer service at once The warranty period covers 24 months starting on the delivery date After the warranty is expired the manufacturer guarantees additional 6 months warranty for all repaired or substituted product components Warranty does not apply to damages which result from misuse or neglect The warranty also expires if you open the product The manufacturer is not liable for consequential damage If a failure occurs during the warranty period the product will be replaced calibrated or rep
34. tion into electrical signals optris CTlaser E2011 08 A 58 Emissivity Definition The intensity of infrared radiation which is emitted by each body depends on the temperature as well as on the radiation features of the surface material of the measuring object The emissivity e Epsilon is used as a material constant factor to describe the ability of the body to emit infrared energy It can range between 0 and 100 A blackbody is the ideal radiation source with an emissivity of 1 0 whereas a mirror shows an emissivity of 0 1 If the emissivity chosen is too high the infrared thermometer may display a temperature value which is much lower than the real temperature assuming the measuring object is warmer than 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 chamottes To minimize measuring errors in such cases the handling should be performed very carefully and the unit should be protected against reflecting radiation sources Determination of unknown Emissivities gt First determine the actual temperature of the measuring object with a thermocouple or contact sensor Second measure the temperature with the infrared thermometer and modify the emissivity until the displayed result corresponds to the actual temperature gt If you monitor temperatures of up to 380 C you may
35. u 0 0 Lower imit temperature range 0 C pending on model inactive at TCJ and TOK outpul n 500 0 Upper imit temperature range 500 C de pending on model inactive at To and TGK output 0 00 owerimitsgnaloupuoV Jaccording to the range of the selected output signal 1 5 00 Ubperimitsignalouput BV according to the range of the selected output signal Uc emperature unt PO SS 0 0 rover alarm imit 30 C Berenang en o I 100 0 Upper aiam imtoo depending on model Ambient temperature compensation head temperature XHEAD head temperature 40 0 900 0 C for LT as fixed value for compensation returning to XHEAD head temperature by pressing Up and Down together M O1 Multidrop adress 1 only with RS485 interface 01 32 Baud rate in kBaud 9 6 9 6 19 2 38 4 57 6 115 2 kBaud optris CTlaser E2011 08 A 49 m E e al A Activating ON and Deactivating OFF of the Sighting Laser By pressing or the laser can be switched on and off Selection of the Output signal By pressing or the different output signals can be selected see table Setup of Emissivity Pressing increases the value decreases the value also valid for all further functions The emissivity is a material constant factor to describe the ability of the body to emit infrared energy gt Emissivity Setup of Transmissivity This function is used if an optical component protecti
36. ve window additional optics e g is mounted between sensor and object The standard setting is 1 000 100 if no protective window etc is used Setup of Average time If the value is set to 0 0 the display will show function deactivated In this mode an arithmetic algorithm will be performed to smoothen the signal The set time is the time constant This function can be combined with all other post processing functions Setup of Peak hold If the value is set to 0 0 the display will show function deactivated In this mode the sensor is waiting for descending signals If the signal descends the algorithm maintains the previous signal peak for the specified time After the hold time the signal will drop down to the second highest value or will descend by 1 8 of the difference between the previous peak and the minimum value during the hold time This value will be held again for the specified time After this the signal will drop down with slow time constant and will follow the current object temperature optris CTlaser E2011 08 A ada V Setup of Valley hold If the value is set to 0 0 the display will show function deactivated In this mode the sensor waits for ascending signals The definition of the algorithm is according to the peak hold algorithm inverted Signal graph with 10 00 11 00 1200 1300 14 00 1500 16 00 17 00 18 00 TProcess with Peak Hold Hold time 1s TActual without post process
37. w LED will shine beside temperature display At ambient temperatures gt 50 C the laser will be switched off automatically Error messages The display of the sensor can show the following error messages OVER temperature overflow UNDER temperature underflow CH head temperature to high vvvCH head temperature to low optris CTlaser E2011 08 A 54 Software CompactConnect Installation Min system requirements Insert the installation CD into the according drive on Windows XP your computer If the autorun option is activated the USB interface installation wizard will start automatically Hard disc with at least 30 MByte free space At least 128 MByte RAM Otherwise please start setup exe from the CD ROM CD ROM drive Follow the instructions of the wizard until the installation is finished The installation wizard will place a launch icon on the desktop and in the start menu Start Programs CompactConnect If you want to uninstall the software from your system please use the uninstall icon in the start menu You will find a detailed software manual on the CD Main Features Graphic display for temperature trends and automatic data logging for analysis and documentation Complete sensor setup and remote controlling Adjustment of signal processing functions Programming of outputs and functional inputs optris CTlaser E2011 08 A 55 Communication Settings Serial Interface Baud r
38. y be connected to the according screw clamps according to their colors pressing screw metal washer rubber washer 0343 POKE 0JKH 9 Use shielded cables only The shield sensor shield has to be grounded optris CTlaser E2011 08 A 40 Ground Connection At the bottom side of the mainboard PCB you will find a connector jumper which has been placed from factory side as shown in the picture left and middle pin connected In this position the ground connections GND power supply outputs are connected with the ground of the electronics housing To avoid ground loops and related signal interferences in industrial environments it might be necessary to interrupt this connection To do this please put the jumper in the other position middle and right pin connected If the thermocouple output is used the connection GND housing should be interrupted generally optris CTlaser E2011 08 A 41 Exchange of the Sensing Head From factory side the sensing head has already been After exchanging a head the calibration connected to the electronics Inside a certain model group code of the new head must be entered into an exchange of sensing heads and electronics is possible the electronics Entering of the Calibration Code Every head has a specific calibration code which is printed on the head For a correct temperature measurement and functionality of the sensor this calibration code must be stored into the electron
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