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Infrared sensor MICRO-EPSILON MESSTECHNIK GmbH & Co. KG Königbacher Strasse 15 94496 Ortenburg / Germany Tel. +49 (0) 8542 / 168-0 Fax +49 (0) 8542 / 168-90 e-mail info@micro-epsilon.de www.micro-epsilon.com Certified acc. to DIN EN ISO 9001: 2008...
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Products which carry the CE mark satisfy the requirements of the EMC regulation 2004/108/EC ‘Electromagnetic Compatibility’ and the European standards (EN) listed therein. The EC declaration of conformity is kept available according to EC regulation, article 10 by the authorities responsible at MICRO-EPSILON MESSTECHNIK GmbH & Co. KG Königbacher Straße 15...
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The warranty period lasts 12 months following the day of shipment. Defective parts, except wear parts, will be repaired or replaced free of charge within this period if you return the device free of cost to MICRO-EPSILON. This warranty does not apply to damage resulting from abuse of the equipment and devices, from forceful handling or installation of the devices or from repair or modifications performed by third parties.
Description The sensors of the thermometer CTVideo series are noncontact infrared temperature sensors. They calculate the surface temperature based on the emitted infrared energy of objects [► Basics of Infrared Thermometry]. The alignment of the sensor can be done with the integrated video sighting and crosshair laser aiming.
Cautions Avoid abrupt changes of the ambient temperature. In case of problems or questions which may arise when you use the CTVideo, please contact our service department. Model Overview The sensors of the CTVideo series are available in the following basic versions: Model Model code Measurement range...
Factory Default Settings The unit has the following presetting at time of delivery: Smart Averaging means a 0 – 5 V Signal output object temperature dynamic average adaptation Emissivity 1,000 at high signal edges. Transmissivity 1,000 [Activation via software only]. Average time (AVG) inactive [►...
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Lower limit temperature range [°C] Upper limit temperature range [°C] 1000 1500 1800 Lower alarm limit [°C] (normally closed) Upper alarm limit [°C] 1000 1200 (normally open) Lower limit signal output Upper limit signal output Temperature unit °C Ambient temperature compensation internal sensor temperature probe Baud rate [kBaud] Laser...
Technical Data General Specifications Sensor Controller Environmental rating IP 65 (NEMA-4) IP 65 (NEMA-4) Ambient temperature -20 ... 85 °C 0 ... 85 °C Storage temperature -40 ... 85 °C -40 ... 85 °C Relative humidity 10 ... 95 %, non condensing 10 ...
Electrical Specifications 8 – 36 VDC Power Supply Current draw max. 160 mA Aiming laser 635 nm, 1 mW, On/ Off via programming keys or software Video sighting Digital (USB 2.0), 640 x 480 px, FOV 3.1° x 2.4° Output/ analog Selectable: 0/ 4 –...
Measurement Specifications [CTVM-3 models] Temperature range (scalable) 50 ... 400 °C 100 ... 600 °C 150 ... 1000 °C 200 ... 1500 °C Spectral range 2,3 µm 2,3 µm 2,3 µm 2,3 µm Optical resolution 60:1 100:1 300:1 300:1 2) 3) System accuracy ------------------------- ±(0,3 % of reading +2 °C) ----------------------------...
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Measurement Specifications [CTVM-3 models] Temperature range (scalable) 250 ... 1800 °C Spectral range 2,3 µm Optical resolution 300:1 1) 2) System accuracy ±(0,3 % of read. +2 °C) Repeatability ±(0,1 % of read. +1 °C) Temperature resolution 0,1 °C Exposure time (90 % signal) 1 ms Emissivity/ Gain 0,100 ...
Optical Charts The vario optics of the CTVideo allows a smooth focusing of the optics to the desired distance. The sensors are available in two optic versions: Optics Focus adjustable in the range 200 mm til infinity 90 mm til 250 mm The size of the measuring object and the optical resolution of the infrared thermometer determine the maximum distance between sensor and measuring object.
Mechanical Installation The CTVideo 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. CTVideo sensor (Basic version) Make sure to keep the optical path clear of any obstacles.
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CTVideo sensor (High temperature version) thermoMETER CTVideo...
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Controller For an exact alignment of the sensor to the object please activate the integrated video and/ or crosshair laser sighting. [► Operating/ Sighting] Mounting bracket, adjustable in one axis [TM-FB-CTL] – standard scope of supply thermoMETER CTVideo...
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.
Mounting Bracket Mounting bracket, adjustable in two axes [TM-AB-CTL] This adjustable mounting bracket allows an adjustment of the sensor in two axis. thermoMETER CTVideo...
Water Cooled Housing To avoid condensation on the optics an air purge collar is recommended. Water cooled housing [TM-W-CTL] Hose connection: 6x8 mm Thread (fitting): G 1/8 inch The sensor can be used at ambient temperatures up to 70 °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).
Rail Mount Adapter for Controller With the rail mount adapter the CTVideo electronics can be mounted easily on a DIN rail (TS35) according EN50022. Rail mount adapter [TM-RAIL-CTL] ► All accessories can be ordered using the according part numbers in brackets [ ]. thermoMETER CTVideo...
Electrical Installation Cable Connections The CTVideo sensors are equipped with connectors in the backplane. Therefore an opening of the sensor for assembling or disassembling is not necessary. An USB cable (5 m) is already connected on the controller and can be used for linking to a computer. Basic version The standard version of the CTVideo has a 12-pin connector which is integrated in the sensors backplane.
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CTVideo Basic version CTVideo High temperature version thermoMETER CTVideo...
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Designation +8 … 36 VDC Power supply Ground (0 V) of power supply Ground (0 V) of internal in- and outputs Alarm 2 (Open collector output) OUT-TC Analog output thermocouple (J or K) OUT-mV/mA Analog output object temperature (mV or mA) F1-F3 Functional inputs Ground (0 V)
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Cable Assembling The cable gland M12x1,5 of the controller 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.
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 [bottom 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.
Sensor head Calibration Code Every sensor has a specific calibration code, which is printed on the sensor. For a correct temperature measurement and functionality of the sensor this calibration code must be stored into the controller. The calibration code consists of five blocks with 4 characters each. EKJ0 –...
Outputs and Inputs Analog Output This output is used for the object temperature. The selection of the output signal can be done via the programming keys [► Operating]. The software allows the programming of output channel 1 as an alarm output.
Digital Interface The CTVideo sensors are equipped with an USB interface. The interface board is located beside the LCD display. To uninstall the board please disconnect both of the M3x5 screws. Please pay attention to the correct positioning of the pin strip if you install the board.
Alarms All alarms (alarm 1, alarm 2, output channel 1 and 2 if used as The CTVideo has the following Alarm alarm output) have a fixed hysterese of 2 K. features: Output channel 1 To activate the alarm function the output channel has to be switched into digital mode. For this purpose the software is required.
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 [► Alarms/ Visual Alarms]. Sensor Setup The programming keys Mode, Up and Down enable the user to set the sensor on-site.
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Display Mode [Sample] Adjustment Range Laser Sighting [On] ON/ OFF 142.3C Object temperature (after signal processing) [142,3 °C] fixed 127CH Head temperature [127 °C] fixed 25CB Box temperature [25 °C] fixed 142CA Current object temperature [142 °C] fixed 0-20 = 0–20 mA/ 4-20 = 4–20 mA/ MV5 = 0–5 V/ Signal output channel 1 [0-5 V]...
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S ON Activating (ON) and Deactivating (OFF) of the Sighting Laser. By pressing Up or Down the laser can be switched on and off. Selection of the Output signal. By pressing Up or Down the different output signals can be selected (see table).
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V---- Setup of Valley hold. In this mode the sensor waits for ascending signals. The definition of the algorithm is according to the peak hold algorithm (inverted). If the value is set to 0.0 the display will show --- (function deactivated). Signal graph with P---- ▬...
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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 ≥ upper limit the upper limit will be adjusted to [lower limit + 20 K] automatically. n 500.0 Setup of the Upper limit of the temperature range.
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XHEAD Setup of the Ambient temperature compensation. In dependence on the emissivity value of the object a certain amount of 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.
Sighting The CTVideo has an integrated video camera which is using the same optical channel than the IR detector. In addition the sensor has a cross laser aiming which marks the center of the measurement spot at any distance. The combination of video and laser sighting enables a perfect alignment of the sensor to the object.
Focusing and Video Sighting On the back plane of the sensor you will find a rotary button for focusing of the optics. To set the focus to the desired measurement distance you have to connect the sensor with a PC using the USB cable. Please start the software. You will see the video beside the temperature-time diagram.
Error messages The display of the CTVideo sensor can show the following error messages: 1. Digit: No error Sensor temperature probe short circuit to GND Controller temperature too low Controller temperature too high Controller temperature probe disconnected Controller temperature probe short circuit to GND 2.
Software Installation Min. system requirements: Windows XP, Vista, 7, 8 Insert the installation CD into the according drive on USB interface your computer. If the autorun option is activated the Hard disc with at least 30 MByte free space installation wizard will start automatically.
Communication Settings Serial Interface Baud rate: 9,6 ... 115,2 kBaud (adjustable on the unit or via software) Data bits: Parity: none Stop bits: Flow control: Protocol All sensors of the CTVideo series are using a binary protocol. Alternatively they can be switched to an ASCII protocol.
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Saving of parameter settings After power on of the CTVideo 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: HEX:...
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 µ and 20 µm. The intensity of the emitted radiation depends on the material.
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 (ε – Epsilon) is used as a material constant factor to describe the ability of the body to emit infrared energy.
► 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.
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.
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