optris® CSlaser LT/ 2M ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Infrared Sensor Operators manual
CE-Conformity The product complies with the following standards: EMC: Safety: Laser Safety: EN 61326-1:2006 (Basic requirements) EN 61326-2-3:2006 EN 61010-1:2001 EN 60825-1:2007 The product accomplishes the requirements of the EMC Directive 2004/108/EG and of the Low Voltage Directive 2006/95/EG. Optris GmbH Ferdinand-Buisson-Str. 14 D – 13127 Berlin GERMANY Tel.: +49-30-500 197-0 Fax: +49-30-500 197-10 E-mail: info@optris.de Internet: www.optris.
Content Page Description Scope of Supply Maintenance Cautions Model Overview Factory Default Settings Technical Data General Specifications Electrical Specifications Measurement Specifications Optical Charts Mechanical Installation Accessories Mounting Brackets Air Purge Collar Water Cooled Housing Electrical Installation Cable Connections Analog Mode Digital Mode Digital and Analog mode combined Maximum Loop Impedance Emissivity Setting 3 3 3 4 4 5 6 6 7 8 9 14 15 15 16 17 18 18 20 20 21 22 23 Page Laser
Description The sensors of the optris CSlaser series are noncontact infrared temperature sensors. They calculate the surface temperature based on the emitted infrared energy of objects [► 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 CSlaser head is made of stainless steel (IP65/ NEMA-4 rating). The CSlaser sensing head is a sensitive optical system.
Cautions Avoid abrupt changes of the ambient temperature. In case of problems or questions which may arise when you use the CSlaser, please contact our service department.
Factory Default Settings The unit has the following presetting at time of delivery: Signal output object temperature Emissivity (switches) Emissivity (via software) Transmissivity Average time (AVG) Smart Averaging Peak hold Valley hold 4-20 mA 0,970 [LT] 1,000 [2MH] 1,000 1,000 0,2 s [LT] 0,1 s [2M] inactive [LT] active [2MH] inactive inactive LT Lower limit temperature range [°C] Upper limit temperature range [°C] Lower limit signal output Upper limit signal output Temperature unit Ambient temperature c
Technical Data General Specifications Environmental rating Ambient temperature 1) Storage temperature Relative humidity IP65 (NEMA-4) -20...85 °C -40...85 °C 10...95 %, non condensing Material Dimensions Weight stainless steel 100 mm x 50 mm, M48x1,5 600 g Cable length 3 m, 8 m, 15 m (on connector version only) Cable diameter Ambient temperature cable 5 mm 105 °C max.
Electrical Specifications Power Supply 5–28 V DC Current draw (laser) 45 mA @ 5 V 20 mA @ 12 V 12 mA @ 24 V Aiming laser 635 nm, 1 mW, On/ Off via external switch (needs to be installed by user before start-up) or software Output/ analog 4–20 mA current loop Alarm output Programmable open collector output at RxD pin [0-30 V/ 500 mA] Output impedance max.
Measurement Specifications LT 2MH Temperature range (scalable) -50...975 °C 385...1600 °C Spectral range Optical resolution 8...
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.
LT Optics: CF1 D:S (focus distance) = 50:1/ 1,4mm@ 70mm D:S (far field) = 1,5:1 LT Optics: CF2 D:S (focus distance) = 50:1/ 3mm@ 150mm D:S (far field) = 6:1 optris CSlaser – E2010-07-B 10
LT Optics: CF3 D:S (focus distance) = 50:1/ 4mm@ 200mm D:S (far field) = 8:1 LT Optics: CF4 D:S (focus distance) = 50:1/ 9mm@ 450mm D:S (far field) = 16:1 optris CSlaser – E2010-07-B 11
2MH Optics: FF D:S (focus distance) = 300:1/ 12mm@ 3600mm D:S (far field) = 115:1 2MH Optics: SF D:S (focus distance) = 300:1/ 3,7mm@ 1100mm D:S (far field) = 48:1 2MH Optics: CF2 D:S (focus distance) = 300:1/ 0,5mm@ 150mm D:S (far field) = 7,5:1 optris CSlaser – E2010-07-B 12
2MH Optics: CF3 D:S (focus distance) = 300:1/ 0,7mm@ 200mm D:S (far field) = 10:1 2MH Optics: CF4 D:S (focus distance) = 300:1/ 1,5mm@ 450mm D:S (far field) = 22:1 optris CSlaser – E2010-07-B 13
Mechanical Installation The CSlaser 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. CSlaser sensing head Make sure to keep the optical path clear of any obstacles.
Accessories Mounting Brackets Mounting bracket, adjustable in two axes [ACCTLAB] For an exact sensor alignment to the object please activate the integrated double laser.
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 l/ min.) depends on the application and the installation conditions on-site.
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 CSlaser 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).
Electrical Installation Cable Connections Basic version The basic version is supplied without connection cable. To connect the CSlaser please open at first the sensor backplane (4 screws). Please use a 4-wire shielded cable which you have to conduct through the cable gland. During assembling please make sure the shield gets a safe electrical contact to the sensor housing. For an easier connection the terminal block can be removed from the PCB by pulling off.
Designation (sensor terminal block) RXD TXD LOOP + LOOP – LASER – LASER + Receive data (digital) Transmit data (digital) Current loop (+) Current loop (–) Power supply laser (–) Power supply laser (+) Above the terminal block you will find two rotary switches for [►Emissivity Adjustment].
Analog Mode If the CSlaser is used as analog device the sensor provides beside the 4-20 mA signal in addition an alarm output (open-collector) on the RxD pin. To activate the alarm output and set the alarm threshold value the software (optional) is needed. The supply line for the sighting laser must be led via a switch or pushbutton, which has to be installed max. 2m away from installation site of the sensor.
For a digital communication the optional USB programming kit is required. Please connect each wire of the USB adapter cable with the same coloured wire of the sensor cable by using the terminal block. Press with a screw driver as shown in the picture to loose a contact. Alternatively the USB cable can also be connected directly on the sensor [► Cable Connections].
Maximum Loop Impedance The maximum impedance of the current loop depends on the supply voltage level: optris CSlaser – E2010-07-B 22
Emissivity Setting After opening of the sensor backplane [► Cable Connections] both of the emissivity switches are accessible. For an emissivity setting of 1,00 please turn both switches to 0. Values below 0,10 are not adjustable. For all other switch positions the following applies: 0, S1 S2. Therefore the adjustment range is 0,10...1,09.
Laser Sighting The CSlaser 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 [► 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.
Software CompactConnect Installation Insert the installation CD into the according drive on your computer. If the autorun option is activated the installation wizard will start automatically. Otherwise please start setup.exe from the CD-ROM. Follow the instructions of the wizard until the installation is finished.
Communication Settings Serial Interface Baud rate: Data bits: Parity: Stop bits: Flow control: 9600 baud 8 none 1 off Protocol All sensors of the CSlaser series are using a binary protocol. To get a fast communication the protocol has no additional overhead with CR, LR or ACK bytes. To power the sensor the control signal „DTR“ has to be set.
Digital Command Set CSlaser Commands Decimal HEX 1 2 3 4 5 9 14 15 129 130 132 133 0x01 0x02 0x03 0x04 0x05 0x09 0x0E 0x0F 0x81 0x82 0x84 0x85 Binary/ ASCII Command binary binary binary binary binary binary binary binary binary binary binary binary READ Temp - Target READ Temp - Head READ current Temp - Target READ Emissivity READ Transmission READ Processor Temperature READ Serial number READ FW Rev.
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. 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.
► 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.
Appendix A – Emissivity Table Metals Material Aluminium Brass Copper Chrome Gold Haynes Inconel Iron Iron, casted Spectral response non oxidized polished roughened oxidized polished roughened oxidized polished roughened oxidized alloy electro polished sandblast oxidized non oxidized rusted oxidized forged, blunt molten non oxidized oxidized typical Emissivity 1,0 μm 0,1-0,2 0,1-0,2 0,2-0,8 0,4 0,35 0,65 0,6 0,05 0,05-0,2 0,2-0,8 0,4 0,3 0,5-0,9 0,2-0,5 0,3-0,4 0,4-0,9 0,35 0,7-0,9 0,9 0,35 0,35 0,9
Material Lead Spectral response polished roughened oxidized Magnesium Mercury Molybdenum Monel (Ni-Cu) Nickel Platinum Silver Steel Tin Titanium Wolfram Zinc typical Emissivity 1,0 μm 0,35 0,65 0,3-0,8 non oxidized oxidized electrolytic oxidized black polished plate rustless heavy plate cold-rolled oxidized non oxidized polished oxidized polished polished oxidized 0,25-0,35 0,5-0,9 0,3 0,2-0,4 0,8-0,9 0,04 0,35 0,35 0,8-0,9 0,8-0,9 0,25 0,5-0,75 0,35-0,4 0,5 0,6 1,6 μm 0,05-0,2 0,6 0,3-0,7 0,05-0,3 0
Appendix B – Emissivity Table Non Metals Material Spectral response Asbestos Asphalt Basalt Carbon Carborundum Ceramic Concrete Glass Grit Gypsum Ice Limestone Paint Paper Plastic >50 μm Rubber Sand Snow Soil Textiles Water Wood typical Emissivity 1,0 μm 0,9 non oxidized graphite 0,4 0,65 plate melt 2,2 μm 0,8 0,8-0,9 0,8-0,9 0,95 0,8-0,95 0,9 0,2 0,4-0,9 5,1 μm 0,9 0,95 0,7 0,8-0,9 0,7-0,9 0,9 0,8-0,95 0,9 0,98 0,9 0,95 0,4-0,97 0,4-0,98 non alkaline any color non transparent 0,95 0,95 0,9 0,9 0,95
