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MI
Miniature Infrared Sensor
Operating Instructions
Rev. F 04/2006
54301
Related Manuals for RayTek MI Miniature Infrared Sensor
Summary of Contents for RayTek MI Miniature Infrared Sensor
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Page 1: Operating Instructions
Miniature Infrared Sensor Operating Instructions Rev. F 04/2006 54301…
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Page 2
Declaration of Conformity for the European Community This instrument conforms to: EMC: Safety: IEC/EN 61326‐1 EN 61010‐1:1993 / A2:1995 … -
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Europe Raytek GmbH 13127 Berlin, Germany Blankenburger Str. 135 Tel: +49 30 478008 – 0 +49 30 478008 – 400 Fax: +49 30 4710251 raytek@raytek.de United Kingdom Tel: +44 1908 630800 Fax: +44 1908 630900 ukinfo@raytek.com Raytek China Company Beijing, China Tel: +86 10 6439 2255 Fax: +86 10 6437 0285 info@raytek.com.cn Internet: http://www.raytek.com/ © Raytek Corporation. Raytek, the Raytek Logo, and DataTemp are registered trademarks of Raytek Corporation. All rights reserved. Specifications subject to change without notice. Contacts USA Raytek Corporation CA 95061 – 1820, Santa Cruz 1201 Shaffer Rd. PO Box 1820 Tel: +1 831 458 – 1110 or +1 800 227 – 8074 … -
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The manufacturer warrants this instrument to be free from defects in material and workmanship under normal use and service for the period of two years from date of purchase. This warranty extends only to the original purchaser. This warranty shall not apply to fuses, batteries, or any product that has been subject to misuse, neglect, accident, or abnormal conditions of operation. In the event of failure of a product covered by this warranty, the manufacturer … -
Page 5: Table Of Contents
ABLE OF 1 SAFETY INSTRUCTIONS…1 2 DESCRIPTION …3 3 TECHNICAL DATA …4 3.1 M EASUREMENT 3.2 O PTICAL 3.3 E LECTRICAL 3.4 E NVIRONMENTAL 3.5 D IMENSIONS 3.6 S COPE OF 4 BASICS …11 4.1 M EASUREMENT OF 4.2 E MISSIVITY OF 4.3 A MBIENT 4.4 A TMOSPHERIC 4.5 E LECTRICAL 5 INSTALLATION …14 5.1 P OSITIONING 5.1.1 Distance to Object…14 5.2 W …15 IRING 5.2.1 Sensor Head Cable …15 5.2.2 Cable Preparations …16 5.3 O …18…
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5.3.1 Signal Output… 19 5.3.2 Head Ambient Temp. / Alarm Output … 20 5.3.3 Thermocouple Output… 22 5.4 I FTC… 23 NPUTS 5.4.1 Emissivity Setting (analog controlled) … 24 5.4.2 Emissivity Setting (digital controlled) … 25 5.4.3 Ambient Background Temperature Compensation … 26 5.4.4 Trigger and Hold Function… 28 5.5 C ONNECTING TO THE 5.6 I NSTALLING OF 6 OPERATION… 34 6.1 C ONTROL 6.2 S ETTING OF 6.3 S ETTING THE 6.4 P OST ROCESSING 6.4.1 Averaging … 38 6.4.2 Peak Hold… -
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8 ACCESSORIES …46 8.1 O VERVIEW 8.2 A DJUSTABLE 8.3 F IXED OUNTING 8.4 A IR URGING 8.5 A IR OOLING 8.6 R IGHT NGLE 8.7 B …58 OX 8.8 P ROTECTIVE 9 MAINTENANCE …60 9.1 T ROUBLESHOOTING 9.2 F ‐S AFE 9.3 S ENSING 10 SOFTWARE …65 11 PROGRAMMING GUIDE …66 11.1 T RANSFER 11.2 G ENERAL 11.3 D EVICE … -
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11.6.2 Analog Output, Scaling … 73 11.6.3 Alarm Output… 73 11.6.4 Factory default values… 73 11.6.5 Lock Mode… 74 11.6.6 Mode Setting for the Digital Input FTC3… 74 11.6.7 Changing the Sensing Head Calibration Data74 11.6.8 Ambient Background Temperature Compensation … 74 11.7 M ULTIPLE 11.8 C OMMAND 12 APPENDIX… 81 12.1 D ETERMINATION OF 12.2 T YPICAL INDEX … 87 NITS ULTIDROP … 77 MISSIVITY MISSIVITY ALUES , RS485) … 76 … -
Page 9: Safety Instructions
Safety Instructions 1 Safety Instructions This document contains important information, which should be kept at all times with the instrument during its operational life. Other users of this instrument should be given these instructions with the instrument. Eventual updates to this information must be added to the original document. The instrument should only be operated by trained …
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Page 10
Safety Instructions Operating Instructions The following symbols are used to highlight essential safety information in the operation instructions: Helpful information regarding the optimal use of the instrument. Warnings concerning operation to avoid instrument damage. Warnings concerning operation to avoid personal injury. Pay particular attention to the following safety instructions. Use in 110 / 230 VAC electrical systems can result in electrical … -
Page 11: Description
2 Description The miniature infrared sensors MI are noncontact infrared temperature measurement systems. They accurately and repeat ably measure the amount of energy emitted from an object and convert that energy into a temperature signal. The following outputs are available: • J‐Thermocouple • K‐Thermocouple • 0 ‐ 5 Volt • 0 ‐ 20 mA or 4 ‐ 20 mA • 10 mV / °C head ambient temperature signal • RS232 interface • optional: RS485 interface The sensing head is protected by a rugged IEC 529 (IP 65, NEMA‐4) stainless steel housing, and is connected to the electronic box with a …
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Page 12: Technical Data
Technical Data 3 Technical Data 3.1 Measurement Specifications Temperature Range LT Spectral Response LT Response Time All models Accuracy LT LT TC outputs At ambient temperature 23°C ±5°C (73°F ±9°F) Repeatability All models 4 ‐40 to 600°C (‐40 to 1112°F) for J‐Thermocouple: ‐25 to 600°C (‐13 to 1112°F) 8 to 14 μm 150 ms (95% response) ± 1% or ± 1°C (± 2°F) whichever is greater ± 2°C (± 4°F) for target temp. < 20°C (68°F) ± 1% or ± 2.5°C (± 5°F) whichever is greater ± 0.5% or ± 0.5°C (± 1°F) whichever is greater MI …
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Page 13
Temperature Resolution LT * For a zoomed temperature span of 300°C (600°F) ** For the full temperature range of the unit Temperature Coefficient MIC MIH MIC, MIH MID Box Thermal Shock (within 20 min.) LT Emissivity All models Transmission All models MI ± 0.1 K (± 0.2°F)* ± 0.25 K (± 0.5°F)** ± 0.05 K per K or ± 0,05% / K whichever is greater, at ambient: 23 to 125°C (73 to 185°F) ± 0.05 K per K or ± 0,05% / K whichever is greater, at ambient: 23 to 180°C (73 to 356°F) ± 0.1 K per K or ± 0.1% per K whichever is greater, at ambient: 0 to 23°C (32 to 73°F) ± 0.15 K per K or ± 0.15% per K whichever is greater, at ambient: 0 to 85°C (32 to 185°F) ± 0.1 K per K or ± 0.1% per K whichever is greater ± 3.5 K at ΔT = 25 K (45°F) ambient at target temperature of 50°C (45°F) 0.100 to 1.100 0.100 to 1.000 Technical Data 5 … -
Page 14: Optical Specifications
Technical Data 3.2 Optical Specifications Optical Resolution D:S MID, MIC; MIH MID, MIC; MIH MID, MIC At 90% energy in minimum and distance 400 mm (15.7 in.) 6 22:1 (typ.), 21:1 (guaranteed) 10:1 2:1 Figure 1: Spot Size Chart MI …
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Page 15: Electrical Specifications
3.3 Electrical Specifications Power Supply Voltage Current Outputs 1. Output (OUT) 0 to 20 mA, or 2. Output (AMB) 0 to 5 V output for head ambient temperature mA Output 0 to 5 V Outputs min. load impedance 100 kΩ (a lower load Thermocouple MI 12 to 26 VDC 100 mA 4 to 20 mA, or 0 to 5 V, or Thermocouple (J or K) (0 to 500°C, 32 to 932°F) or output for alarm relay (software enabled, only in conjunction with RS232/485) recommended loop impedance see Figure 9 on page 19. impedance deteriorates the accuracy) output impedance 100 Ω short circuit resistant output impedance 20 Ω short circuit resistant Technical Data 7 …
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Page 16: Environmental Specifications
Technical Data 3.4 Environmental Specifications Ambient Temperature MIH sensing head MIC sensing head MID sensing head MID with air cooling Electronics box Storage Temperature Rating (Head) Rating (Box) Relative Humidity EMC Vibration (Head) Shock (Head) Weight (Head) Weight (Box) Head Cable Material MID/MIC MIH Teflon develops poisonous gasses when it comes into contact with flames! 8 0 to 180°C (32 to 356°F) 0 to 125°C (32 to 257°F) 0 to 85°C (32 to 185°F) ‐18 to 200°C (0 to 392°F) 0 to 65°C (32 to 150°F) ‐10 to 85°C (14 to 185°F) IP 65 (NEMA‐4), not for models with an optical resolution of 2:1 IP 65 (NEMA‐4) 10% to 95% non‐condensing …
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Page 17: Dimensions
Technical Data 3.5 Dimensions Standard cable length 1 m (3 ft.) MID/MIC: Ø 5 mm (0.2 in) MIH: Ø 3 mm (0.12 in) Figure 2: Dimensions of Sensing Head 2 mounting holes, Ø 4.5 mm (0.17 in) MI 9 …
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Page 18: Scope Of Delivery
Technical Data Figure 3: Dimensions of Electronic Box 3.6 Scope of Delivery The scope of delivery includes the following: • Sensing head • 1 m head cable • Mounting nut • Electronic box • Operating instructions 10 MI …
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Page 19: Basics
As the intensity of the emitted infrared radiation is dependent on the material, the required emissivity can be selected on the sensor. The biggest advantage of the infrared thermometer is its ability to measure temperature without touching an object. Consequently, surface temperatures of moving or hard to reach objects can easily be measured. …
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Page 20: Emissivity Of Target Object
Basics 4.2 Emissivity of Target Object To determine the emissivity of the target object refer to section 12.1 Determination of Emissivity on page 81. If emissivity is low, measured results could be falsified by interfering infrared radiation from background objects (such as heating systems, flames, fireclay bricks, …
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Page 21: Electrical Interference
4.5 Electrical Interference To minimize electrical or electromagnetic interference or “noise” be aware of the following: • Mount the unit as far away as possible from potential sources of electrical interference such as motorized equipment producing large step load changes. • Use shielded wire for all input and output connections. • Make sure the shield wires are earth grounded at one point. • Sensor head shield braid should make direct contact around the cable circumference. …
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Page 22: Installation
Installation 5 Installation 5.1 Positioning Sensor location depends on the application. Before deciding on a location, you need to be aware of the ambient temperature of the location, the atmospheric quality of the location, and the possible electromagnetic interference in that location, according to the sections described above. If you plan to use air purging, you need to have an air connection available. Wiring and conduit runs must be considered, including computer wiring and connections, if used. …
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Page 23: Wiring
Sensor Target greater than spot size Target equal to spot size Figure 4: Proper Sensor Placement 5.2 Wiring 5.2.1 Sensor Head Cable The manufacturer preinstall’s the sensor head cable between sensor head and electronic box. It may be shortened but not lengthened. Shortening the cable length by 1 m (3 ft.) causes a temperature error of – 0.1 K / m! Do not bend the sensor head cable tighter than 25 mm / 1 in. (MID/MIC) and 15 mm / 0.6 in. (MIH) respectively! …
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Page 24: Cable Preparations
Installation 5.2.2 Cable for Power Supply and Outputs You need to connect the power supply (12 to 26 VDC) and the signal output wires. Use only cable with outside diameter from 4 to 6 mm (0.16 to 0.24 in), AWG 24. The cable must include shielded wires. It should not be used as a strain relief! 1. Cut about 40 mm (1.5 in) of the cable sheath (7) from the end of the cable. Caution: Do not cut into the shield! 2. Cut the shield (5) so about 5 mm (0.2 in) remains exposed from under the cable sheath (7). Separate the shield and spread …
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Page 25
Output signal and power connector block Cable that has to be installed by the user Figure 6: Connecting of Cables to the Electronic Box 5. Put the following on the cable (as shown in the figure above): the cap (1), the plastic compression fitting (2), the rubber washer (3) and one of the metal washers (4). 6. Spread the cable shield (5) and then slip the second metal washer (4) on the cable. Note that the shield must make good … -
Page 26: Outputs
Installation 5.3 Outputs Electronic Box Signal Output Head Ambient Temp. or Alarm Power Figure 7: Signal Outputs and Power Supply 18 J or K 0 to 5 V 0 to 5 V 12 to 26 VDC 4 to 20 mA 0 to 20 mA MI …
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Page 27: Signal Output
Installation 5.3.1 Signal Output Signal Signal Power + Power – Ground Output Figure 8: Wiring of the Signal Output (mA or V) The signal output can be configured either as current or as voltage output. The minimum load impedance for the 0 to 5 V output must be 100 kΩ. The maximum current loop impedance for the 0/4 to 20 mA output can be 500 Ω, and the power supply and loop impedance must be matched as shown below. …
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Page 28: Head Ambient Temp. / Alarm Output
Installation 5.3.2 Head Ambient Temp. / Alarm Output This output can be configured either as output for the head ambient temperature (default configuration) or as an alarm output. Power + Power – Ground Head Ambient Temp. Figure 10: Wiring the Output for Head Ambient Temperature The output range for the head ambient temperature is 0 to 500°C (32 to 932°F) with 10 mV /°C. In case of an alarm the output switches between 0 V and 5 V. The alarm …
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Page 29
Installation You may use a solid state relay for the alarm output. The output is short circuit resistant with 100 Ω output impedance. The alarm output is only enabled through the DataTemp MultiDrop software, see the software help for set up instructions. MI 21 … -
Page 30: Thermocouple Output
Installation 5.3.3 Thermocouple Output If you are using a J‐ or K‐ thermocouple you must install a compensation cable. The cable is available as an accessory (XXXCI1CB25 for Type J, XXXCI2CB25 for Type K) with a cable length of 7.5 m (24.6 ft.) Connect the wires according to the following table: J-Thermocouple white Table 1: Wiring the Thermocouple J Compensation Cable …
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Page 31: Inputs Ftc
5.4 Inputs FTC The three inputs FTC1, FTC2, and FTC3 are used for the external control of the unit. All input functions are enabled through the DataTemp MultiDrop software only, see the software help for complete set up instructions! Emissivity (analog control) Emissivity (digital control) Ambient Background Temperature Compensation Trigger Hold Function Table 3: Overview to the FTC Inputs …
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Page 32: Emissivity Setting (Analog Controlled)
Installation 5.4.1 Emissivity Setting (analog controlled) The input FTC1 can be configured to accept an analog voltage signal (0 to 5 VDC) to provide real time emissivity setting. The following table shows the relationship between input voltage and emissivity. U in V Emissivity Table 4: Ratio between Analog Input Voltage and Emissivity Example: The process requires the setting of emissivity: • for product 1: 0.90 • for product 2: 0.40 Following the scheme below, the operator needs only to switch to position “product 1” or “product 2”. …
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Page 33: Emissivity Setting (Digital Controlled)
5.4.2 Emissivity Setting (digital controlled) The sensor’s electronics contains a table with 8 pre‐installed settings for emissivity. To activate these emissivity settings, you need to have the inputs FTC1, FTC2, and FTC3 connected. According to the voltage level on the FTC inputs, one of the table entries will be activated. 0 = Low signal (0 V) 1 = High signal (5 V) A non‐wired input is considered as “High”! Table entry Emissivity Figure 15: Digital Selection of Emissivity with FTC Inputs The values in the table can only be changed by means of the DataTemp MultiDrop software. …
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Page 34: Ambient Background Temperature Compensation
Installation 5.4.3 Ambient Background Temperature Compensation The sensor is capable of improving the accuracy of target temperature measurements by taking into account the ambient or background temperature. This feature is useful when the target emissivity is below 1.0 and the background temperature is significantly …
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Page 35
• Ambient background temperature compensation from a second temperature sensor (infrared or contact temperature sensor) ensures extremely accurate results. For example, the output of the second unit, set for mV output, could be connected to the FTC2 analog input (0 to 5 VDC corresponding to low end and high … -
Page 36: Trigger And Hold Function
Installation 5.4.4 Trigger and Hold Function The FTC3 input can be used as external trigger in conjunction with the software trigger mode setting “Trigger” or “Hold”. External switch: — contact relay, — transistor, — TTL gate, … Figure 17: Wiring of FTC3 as External Input Trigger: A logical low signal at the input FTC3 will reset the peak or valley hold function. As long as the input is kept at logical low level the software will transfer the actual object temperatures toward the output. …
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Page 37
Hold: This mode acts as external generated hold function. A transition at the input FTC3 from logical high level toward logical low level will transfer the current temperature toward the output. This temperature will be written to the output until a new transition from high to low occurs at the input FTC3. Temp Figure 19: FTC3 for Holding the Output Temperature MI Installation object temperature output temperature Trigger Time… -
Page 38: Connecting To The Pc Via Rs232
Installation 5.5 Connecting to the PC via RS232 The RS232 interface comes with each model. Connect a single unit with a RS232 COM port by using the connection kit RAYMISCON. to the computer’s COM port Figure 20: Connecting the RS232 cable 30 Sub-D 9 pin Transfer Mode: • 9600 kBit/s • 8 data bits • 1 stop bit • no parity •…
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Page 39: Installing Of Multiple Sensors Via Rs485
5.6 Installing of Multiple Sensors via RS485 The distance between the sensor and a computer can be up to 1200 m (4000 ft.) via RS485 interface. This allows ample distance from the harsh environment where the sensing head is mounted to a control room or pulpit where the computer is located. The RS232/485 adapter comes with a power supply: RAYMINCONV2 for 230 VAC RAYMINCONV1 for 110 VAC Connect the signal line as shown: RS232/485 Adapter RxB RxA Do not run power supply in the same conduit as the RxA/RxB wires! …
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Page 40
Installation For an installation of two or more sensors in a RS485 network, each sensor is wired parallel to the others. You may connect up to 32 units. Make sure to deactivate the preset shunt resistor for all units except for the last one. The position of the switch to deactivate the shunt you can see on the electronic board in the figure above. Before units are in a network the multidrop address needs to be defined. Each sensor must have a unique address! The following figure illustrates the wiring of sensors in a multidrop installation. unit 1 RS232/485 Adapter Figure 22: Wiring the RS485 Network The address setting can be done either through buttons or through software alternatively Addressing through Buttons … -
Page 41
Go to the menu <Setup> <Sensor Setup>, and then select the register <Advanced Setup>. Use <Polling Address> for selecting the requested address. Step‐by‐step instructions for addressing RS‐485 MI units: 1. Power the unit. 2. Using either the buttons or software, assign unique address to the sensor. 3. Power down the unit. 4. Repeat until all sensors have a unique address. 5. On the last unit in the network, activate the shunt resistor after the unit has been powered down. Failure to use shielded RS‐485 wire or activation of the shunt … -
Page 42: Operation
Operation 6 Operation Once you have the sensor positioned and connected properly, the system is ready for continuous operation. The operation of the sensor can be done by means of the built‐in control panel on the sensor’s electronic board or by means of the software that came with your sensor optionally. 6.1 Control Panel …
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Page 43: Setting Of Modes
Operation 6.2 Setting the Output Jumper In addition to the set mode in the unit, see section 6.3 Setting of Modes, on page 36, the unit’s outputs must be configured by switching the <Output> jumper in accordance to the requested output function (mA, mV, TC). E.g. for the “4 to 20 mA” output, the <Output> jumper must be set to the bottom position labeled with “mA”. …
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Page 44
Operation 6.3 Setting of Modes You can easily determine the unit’s mode or parameter by doing the following: Press the <Mode> button until the symbol for the actual set mode appears in the display, e.g. <T> for setting the transmission, see Table 5: Available Modes, on page 37. Use the <Down/Up> buttons until the requested value comes into view. 36 MI … -
Page 45
Display Mode C Target Temperature* (effected by signal processing) A Head Ambient Temperature T Target Temperature (not effected by signal processing) Output Mode Emissivity Transmission Signal processing: Average Signal processing: Peak Hold Signal processing: Valley Hold Low end of range High end of range Temperature Unit Multidrop Address… -
Page 46: Post Processing
Operation 6.4 Post Processing 6.4.1 Averaging Averaging is used to smooth the output signal. The signal is smoothed depending on the defined time basis, whereby the output signal tracks the detector signal with significant time delay but noise and short peaks are damped. Use a longer average time for more accurate damping behavior. The average time is the amount of time the output signal needs to reach 90% magnitude of an object temperature jump. …
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Page 47
Operation object), the output signal reaches only 90% magnitude of the actual object temperature after the defined average time. MI 39 … -
Page 48: Peak Hold
Operation 6.4.2 Peak Hold The output signal follows the object temperature until a maximum is found. Once the hold time is exceeded the output signal, tracks and output the actual object temperature and the algorithm will start over again. The range for the hold time is 0.1 to 998.9 s. Temp hold time A defined hold time of 999 s (symbol “∞” in the display) will put the device into continuous peak detection mode. A low level input (GND) at external input FTC3 will promptly interrupt the hold time and will start the maximum detection again. 40 Figure 26: Peak Hold output temperature object temperature hold time Time MI …
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Page 49: Valley Hold
6.4.3 Valley Hold The output signal follows the object temperature until a minimum is found. Once the hold time is exceeded the output signal, tracks and output the actual object temperature and the algorithm will start over again. The range for the hold time is 0.1 to 998.9 s. Temp hold time A defined hold time of 999 s (symbol “∞” in the display) will put the device into continuous valley detection mode. A low level input (GND) at external input FTC3 will promptly interrupt the hold time and will start the minimum detection again. MI Figure 27: Valley Hold Operation output temperature object temperature hold time Time 41 …
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Page 50: Advanced Peak Hold
Operation 6.4.4 Advanced Peak Hold This function searches the sensor signal for a local maximum (peak) and writes this value to the output until a new local maximum is found. Before the algorithm restarts searching for a local maximum, the object temperature has to drop below a predefined threshold. If the object temperature raises above the held value which has been written …
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Page 51: Advanced Valley Hold
6.4.5 Advanced Valley Hold This function works similar to the advanced peak hold function, except it will search the signal for a local minimum. 6.4.6 Advanced Peak Hold with Averaging The output signal delivered by the advanced peak hold functions tends to jump up and down. This is due to the fact, that only maximum points of the otherwise homogenous trace will be shown. The user may combine the functionality of the peak hold function with …
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Page 52: Factory Defaults
Operation 6.5 Factory Defaults For activating the unit’s factory default values press the <Mode/Up> buttons on the electronic board simultaneously. The factory default values are to be found in section 11.8 Command Set on page 77. 44 MI …
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Page 53: Options
7 Options Options are items that are factory installed and must be specified at time of order. The following are available: • Longer cable lengths: 3 m / 9.8 ft. (…CB3), 8 m / 26.2 ft. (…CB8), 15 m / 49.2 ft. (…CB15) • RS485 serial interface (…4), for multidrop networks or long distances • Box lid with view port (…V) MI Options 45 …
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Page 54: Accessories
Accessories 8 Accessories 8.1 Overview A full range of accessories for various applications and industrial environments are available. Accessories include items that may be ordered at any time and added on‐site: • Adjustable Mounting Bracket (XXXMIACAB) • Fixed Mounting Bracket (XXXMIACFB) • Air Purging Jacket (XXXMIACAJ) • Air Cooling (XXXMIACCJ) or with 2.8 m (9.2 ft.) air hose (XXXMIACCJ1) • Right Angle Mirror (XXXMIACRAJ, XXXMIACRAJ1) • Box Lid (XXXMIACV) • Protective Window (XXXMIACPW) •…
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Page 55
Accessories Adjustable Bracket Electronic Box Sensing Head Fixed Bracket Figure 30: Standard Mounting Accessories MI 47 … -
Page 56: Adjustable Mounting Bracket
Accessories 8.2 Adjustable Mounting Bracket Figure 31: Adjustable Mounting Bracket (XXXMIACAB) 48 MI …
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Page 57: Fixed Mounting Bracket
Accessories 8.3 Fixed Mounting Bracket Figure 32: Fixed Mounting Bracket (XXXMIACFB) MI 49 …
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Page 58: Air Purging Jacket
Accessories 8.4 Air Purging Jacket The air purge jacket is used to keep dust, moisture, airborne particles, and vapors away from the sensing head. Clean, oil free air is recommended. The air purge jacket withstands ambient temperatures up to 180°C (356°F) and should not be used for cooling purposes. The recommended air flow rate is 30 to 60 l / min (0.5 to 1 cfm). The max. pressure is 5 bar. Figure 33: Air Purging Jacket (XXXMIACAJ) 50 Hose with inner diameter of 3 mm (0.12 in), outside 5 mm (0.2 in) MI …
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Page 59
Figure 34: Mounting the Air Purge Jacket 1. Remove the sensor (1) and cable from the electronic box by disconnecting the wires from the electronic box. 2. Open the Air Purging Jacket (3, 4) and screw the white plastic fitting (2) onto the sensor up to the end of the threads, do not over tighten! 3. Slip the cable (6) through the backside (4) of the jacket. 4. Close the Air Purging Jacket (3, 4) and reconnect the wires to the electronic box and apply the mounting nut (5). MI Accessories 51 … -
Page 60: Air Cooling System
Accessories 8.5 Air Cooling System The sensing head can operate in ambient temperatures up to 200°C (392°F) with the air‐cooling system. The air‐cooling system comes with a T‐adapter including 0.8 m / 31.5 in (optional: 2.8 m / 110 in) air hose and insulation. The T‐adapter allows the air‐cooling hose to be installed without interrupting the connections to the box. The air‐cooling jacket may be combined with the right angle mirror. max. ambient 200°C (392°F) Sensing Head Air cooling (max. 35°C / 95°F) Figure 35: Air Cooling System T-Adapter Hose to sensing head…
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Page 61
Figure 37: Maximum Ambient Temperature depending on Note: “Hose Length“ is the length of hose exposed to high ambient temperature (not the overall length of the hose). MI Air Flow: 60 l / min (2.1 cubic feet per minute) 50 l / min (1.8 cfm) 40 l / min (1.4 cfm) Air Flow and Hose Length Accessories Hose Length … -
Page 62
Accessories Figure 38: Air Cooling System: Purging Jacket The Air Cooling System consists of: (1) sensing head (2) inner plastic fitting (air purging jacket) (3) front part of the air‐purging jacket (4) back part of the air‐purging jacket (5) mounting nut (6) preinstalled cable between sensor and box, leading through the T‐adapter (7) hose connecting nut (8) inner hose (9) outer hose (10) T‐adapter (11) rubber washer (12) plastic compression fitting (13) cap 54 MI … -
Page 63
Accessories Figure 39: Air Cooling System: T‐Adapter MI 55 … -
Page 64
Accessories Hose: inner Ø: 9 mm (0.35 in) outer Ø: 12 mm (0.47 in) Figure 40: Dimensions of Air Cooling System 56 MI … -
Page 65: Right Angle Mirror
8.6 Right Angle Mirror The right angle mirror comes in two different versions: XXXMIACRAJ right angle mirror as accessory for air purging jacket or air cooling system XXXMIACRAJ1 right angle mirror with integrated air purging Figure 41: Right Angle Mirror XXXMIACRAJ (left), Right Angle Mirror with Air Purging XXXMIACRAJ1 (right) The right angle mirror withstands ambient temperatures up to 180°C (356°F). For mounting the right angle mirror (XXXMIACRAJ) see section 8.4 Air Purging Jacket on page 50. However, instead of using the front part of the air purging jacket (3), mount the right angle mirror. …
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Page 66: Box Lid
Accessories 8.7 Box Lid Figure 43: Box Lid with View Port for Post Installations (XXXMIACV) 58 MI …
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Page 67: Protective Window
8.8 Protective Window The protective window can be used to protect the sensing head from dust and other contamination. This should be applied especially for sensors without a lens. These are all models with an optical resolution of 2:1. The protective window is made from non‐poisonous zinc sulfide, with a transmission factor of 0.75 ± 0.05. It has an outer diameter of 17 mm (0.67 in). The protective window can be directly screwed to the …
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Page 68: Maintenance
Maintenance 9 Maintenance Our sales representatives and customer service are always at your disposal for questions regarding application assistance, calibration, repair, and solutions to specific problems. Please contact your local sales representative if you need assistance. In many cases, problems can be solved over the telephone. If you need to return equipment for servicing, calibration, or repair, please contact our Service Department …
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Page 69: Fail -Safe Operation
9.2 Fail‐Safe Operation The Fail‐Safe system is designed to alert the operator and provide a safe output in case of any system failure. The sensor is designed to shutdown the process in the event of a set‐up error, system error, or a failure in the sensor electronics. The Fail‐Safe circuit should never be relied on exclusively to protect critical processes. Other safety devices should also be used to supplement this function! When an error or failure does occur, the display indicates the possible …
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Page 70
Maintenance Error Codes via RS232/485 Output T—— T>>>>>> T<<<<<< Table 8: Error Codes (via RS232/485) Error Codes for the LCD Display Display —-C H-ERR B-ERR OVER UNDER 2.15 Table 9: Error Codes (LCD Display) 62 Error Code Description Invalid temperature reading Temperature over range Temperature under range Error Code Description Invalid temperature reading Wrong sensing head Wrong parameter setting (box) Temperature over range Temperature under range Firmware revision number, after reset of… -
Page 71: Sensing Head Exchange
9.3 Sensing Head Exchange Sensing heads and electronic boxes can only be interchanged in accordance to the following table! MID02 MIC02 MID02 MIC02 MID10 MIC10 MIH10 MID20 MIC20 MIH20 The head exchange requires to type in the new sensing head calibration data printed on the cable as follows: 1. To exchange the sensing head, disconnect the power of the unit. …
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Page 72
Maintenance <Down/Up> buttons. Activate your settings by pressing the <Mode> button. Figure 45: Sensing Head Calibration Data printed on the Cable (e.g. Head with two blocks of 4 numbers) For MIH models and specially modified models (like G5 or MTB), four blocks of four characters are used. Alternatively you also can use the DataTemp MultiDrop software for typing in the new sensing head calibration data. 64 MI … -
Page 73: Software
10 Software For use with RS232 or RS485 models, DataTemp MultiDrop software allows access to the extended digital features of the MID with an easy‐to‐use interface. Compatible with WIN 95/98/NT/2000/XP, DataTemp MultiDrop provides for sensor setup, remote monitoring, and simple data logging for analysis or to meet quality record‐ keeping requirements. Additional features configurable with optional RS232 or optional RS485 communications and DataTemp MultiDrop Software: …
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Page 74: Programming Guide
Programming Guide 11 Programming Guide This section explains the sensor’s communication protocol. A protocol is the set of commands that define all possible communications with the sensor. The commands are described along with their associated ASCII command characters and related message format information. Use them when writing custom programs for your applications or when communicating with your sensor with a terminal program. …
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Page 75: Transfer Modes
11.1 Transfer Modes The unit’s serial interface is either RS232 or RS485, depending on the model. Settings: transfer rate: 9.6 kBaud, 8 data bits, 1 stop bit, no parity, flow control: none (half duplex mode). There are two possible transfer modes for the serial interface: Poll Mode: By user interface control, a parameter will be set or requested. Burst Mode: A pre‐defined data string (“burst string“) will be transferred as fast as possible as long as the burst mode is activated. The data will be transferred in one direction only, from the unit to the user interface. …
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Page 76: General Command Structure
Programming Guide 11.2 General Command Structure Requesting a parameter (Poll Mode) ?ECR “?“ is the command for “Request“ “E“ is the parameter requested “CR“ (carriage return, 0Dh) is closing the request. Remark: It is possible to close with “CR“ “LF“, 0Dh, 0Ah, but not necessary. Setting a parameter (Poll Mode) The parameter will be stored into the device EEPROM. E=0.975CR “E“ is the parameter to be set “=“ is the command for “set a parameter“ “0.975“ is the value for the parameter “CR“ (carriage return, 0Dh) is closing the request Remark: It is possible to close with “CR“ “LF“, 0Dh, 0Ah, but not necessary. …
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Page 77: Device Information
After switching the power to “ON“, the device is sending a notification: #XICRLF “#“ is the parameter for “Notification“ “XI“ is the value for the notification (here “XI“; unit switches to “ON”) “CR“ “LF“ (0Dh 0Ah) is closing the answer. Error message *Syntax Error “*“ is the character for “Error“ 11.3 Device Information This information is factory installed, read only. Command Description Device name Remark (e.g., for specials) Serial Number Firmware Revision Number Maximum Temp.
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Page 78: Device Setup
Programming Guide 11.4 Device Setup 11.4.1 Temperature Calculation U=C unit for the temperature value E=0.950 Emissivity setting (Caution: according to the settings for “ES”, see section 11.4.2 Alarm Setpoints on page 70.) XG=1.000 Setting for transmission For the calculation of the temperature value, it is possible to set an offset (relative number to be added to the temperature value), and a gain value. DG=1.0000 Gain adjustment for the temperature signal DO=0 Offset adjustment for the temperature signal In case the ambient temperature is not requested by the internal head …
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Page 79
There are eight entries possible for emissivity setting (1) and a related set point (threshold) (2). To be able to write or read these values, use the following commands: EP=2 set pointer for table entry, e.g. to line 2 (3) RV=0.600 set the emissivity value for line 2 to 0.600 (4) SV=220.0 set the set point (threshold) for line 2 to 220.0 (5) Figure 46: Table for Emissivity and Set Points To activate these emissivity settings, you need to have the 3 external inputs (FTC) connected. According to the digital combination on the FTC wires, one of the table entries will be activated, see section 5.4.2 Emissivity Setting via Digital Selection on page 25. MI Programming Guide 71 … -
Page 80: Post Processing
Programming Guide 11.4.3 Post Processing The following parameters can be set to determine the post processing mode, see section 6.4 Post Processing on page 38. P=5 peak hold, hold time: 5 s F=12.5 valley hold, hold time: 12.5 s G=10 averaging, average time (90%): 10 s XY=3 advanced peak hold, hysteresis: 3 K XY=‐2 advanced valley hold, hysteresis: 2 K Advanced Peak/Valley Hold with Averaging: C=250 threshold: 250°C AA=15 averaging time (90%): 15 s 11.5 Dynamic Data All temperature related information is calculated 128 times a second. To request the dynamic data, following commands are available: ?T target temperature ?I internal temperature of the sensing head ?XJ internal temperature of electronics housing ?Q energy value of the infra‐red temperature ?XT trigger set point (active/inactive) for the FTC3 input To check for resets (e.g. power shut down) use the command XI. Notice, after a reset the unit is new initialized. …
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Page 81: Device Control
11.6 Device Control 11.6.1 Output for the Target Temperature The signal output can be set to 4 – 20 mA, 0 – 20 mA or mV. If current output is activated, the output can provide a predefined current: XO=4 output mode to 4 – 20 mA O=13.57 output of a constant current at 13.57 mA O=60 switches back to the temperature controlled output 11.6.2 Analog Output, Scaling According to the temperature range of the model, it is possible to set a maximum voltage/current value according to a temperature value (e.g., the maximum current 20 mA shall represent 200°C / 392°F). The same setting is possible for the minimum value. H=500 the maximum current/voltage value is set to 500°C L=0 the minimum current/voltage value is set to 0°C Remark: You cannot set this value for thermocouple output. The minimum span between the maximum / minimum settings is 20 K. 11.6.3 Alarm Output The second output channel can be set in different modes, see section 5.3.2 Head Ambient Temp. / Alarm Output on page 20. …
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Page 82: Lock Mode
Programming Guide XF factory default values will be set 11.6.5 Lock Mode The access to the unit is possible via serial interface (software) and via the direct user input (mode buttons, LCD display). It is possible to lock the buttons. This allows access the unit only via software. J=L direct user input via mode buttons denied Alternatively the unit can be unlocked by pressing the <Mode/Up> buttons simultaneously for three seconds. …
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Page 83
AC=2 compensation with an external voltage signal at the analog input FTC2 (0 V – 5V corresponds to low end and high end of temperature range), current ambient temperature is readable with command A. Note: The mode AC = 2 does not function in case of setting the command ES = D! … -
Page 84: Multiple Units (Multidrop Mode , Rs485)
Programming Guide 11.7 Multiple Units (RS485 Multidrop Mode) Up to 32 units can be connected within a RS485 network, see section 5.6 Installing of Multiple Sensors via command to one unit among the 32 possible, it is necessary to „address“ a command. Therefore, a 3‐digit number is set prior the command. The 3‐digit number is determined between 001 and 032. Exception: Broadcast command. …
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Page 85: Command Set
11.8 Command Set Description Char Format Poll parameter Set parameter Set parameter without EEPROM storage Multidrop addressing Error message Acknowledge message Burst string format Ambient background temp. compensation Advanced hold with AA nnn.n average Control ambient AC n background temp. compensation Advanced hold threshold Currently calculated CE n.nnn emissivity…
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Page 86
Programming Guide Description Char Format Source: emissivity / ES X setpoint for alarm output Presel. emissivity value EV n.nnn Valley hold time(4) Average time Top of mA/mV range Sensor / head ambient Switch panel lock Alarm output control Bottom of mA/mV range Output voltage Output current Peak hold time (4) -
Page 87
Description Char Format Presel. setpoint / relay SV nnn.n function Target temperature Temperature unit Poll / Burst mode Burst string contents Multidrop address XA nnn Bottom temperature of XB nnn.n range Restore factory defaults Transmission XG n.nnn High temperature of XH nnn.n range Sensor initialization… -
Page 88
Programming Guide (3) $ = UTQE (4) setting average / peak / valley / advanced hold cancels all other hold modes (6) LT: 23°C (73°F) (7) LT: 500°C (932°F) (8) LT: 0°C (32°F) (9) XZ = 0123 4567 89AB CDEF set command checks format! Firmware restart by unit (10) E0=1.100, E1=0.500, E2=0.600, E3=0.700, E4=0.800, E5=0.970, E6=1.000, E7=0.950 XS0=200, XS1=210, XS2=220, XS3=230, XS4=240, XS5=250, XS6=260, XS7=270 En / XSn set via command EP = n (n = 0 … 7) 80 Table 2: Command Set MI … -
Page 89: Appendix
12 Appendix 12.1 Determination of Emissivity Emissivity is a measure of an object’s ability to absorb and emit infrared energy. It can have a value between 0 and 1.0. For example a mirror has an emissivity of < 0.1, while the so‐called “Blackbody“ reaches an emissivity value of 1.0. If a higher than actual emissivity value is set, the output will read low, provided the target temperature …
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Page 90
Appendix 0.95. Finally, measure the temperature of an adjacent area on the object and adjust the emissivity until the same temperature is reached. This is the correct emissivity for the measured material. 82 MI … -
Page 91: Typical Emissivity Values
12.2 Typical Emissivity Values The following table provides a brief reference guide for determining emissivity and can be used when one of the above methods is not practical. Emissivity values shown in the table are only approximate, since several parameters may affect the emissivity of a material. These include the following: 1. Temperature 2. Angle of measurement 3. Geometry (plane, concave, convex) 4. Thickness 5. Surface quality (polished, rough, oxidized, sandblasted) 6. Spectral range of measurement 7. Transmission (e.g. thin films plastics) …
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Page 92
Appendix Material Aluminum Unoxidized Oxidized Alloy A3003, Oxidized Roughened Polished Brass Polished Burnished Oxidized Chromium Copper Polished Roughened Oxidized Gold Haynes Alloy Inconel Oxidized Sandblasted Electropolished Iron Oxidized Unoxidized Rusted Molten Iron, Cast Oxidized Unoxidized Molten Iron, Wrought Dull Lead 84 … -
Page 93
Polished Rough Oxidized Magnesium Mercury Molybdenum Oxidized Unoxidized Monel (Ni-Cu) Nickel Oxidized Electrolytic Platinum Black Silver Steel Cold-Rolled Ground Sheet Polished Sheet Molten Oxidized Stainless Tin (Unoxidized) Titanium Polished Oxidized Tungsten Polished Zinc Oxidized Polished Tab. 10: Typical Emissivity Values for Metals MI 0.05-0.2 0.05-0.2 0.2-0.7 0.2-0.7 0.03-0.15 0.03-0.15… -
Page 94
Appendix Material Asbestos Asphalt Basalt Carbon Unoxidized Graphite Carborundum Ceramic Clay Concrete Cloth Glass Plate “Gob” Gravel Gypsum Limestone Paint (non-al.) Paper (any color) Plastic, greater 500 µm (0.02 in) thickness Rubber Sand Snow Soil Water Wood, Natural Tab. 11: Typical Emissivity Values for Non‐Metals 86 … -
Page 95: Index
Index Accessories Accuracy Air pressure Air Purge Air Purge Jacket Ambient Temperature Average Control Panel Emissivity Loop impedance Maintenance Mirror Network Noise Optical Resolution Power Supply Repeatability Response Time Sensing Head Exchange Spectral Response Spot Size Temperature Coefficient Temperature Resolution Thermal Shock Transmission Transmission…
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MI
Miniature Infrared Sensor
Operating Instructions
Rev. F 04/2006
54301
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Declaration of Conformity for the European Community This instrument conforms to: EMC: IEC/EN 61326‐1 Safety: EN 61010‐1:1993 / A2:1995
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Contacts Europe USA Raytek GmbH Raytek Corporation 13127 Berlin, Germany CA 95061 – 1820, Santa Cruz Blankenburger Str. 135 1201 Shaffer Rd. PO Box 1820 Tel: +49 30 478008 – 0 Tel: +1 831 458 – 1110 or +49 30 478008 – 400 +1 800 227 – 8074 Fax: +49 30 4710251 Fax: +1 831 458 – 1239 raytek@raytek.de automation@raytek.com United Kingdom France Tel: +44 1908 630800 Tel: 0800 888 244 Fax: +44 1908 630900 ukinfo@raytek.com info@raytek.fr Raytek China Company
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WARRANTY The manufacturer warrants this instrument to be free from defects in material and workmanship under normal use and service for the period of two years from date of purchase. This warranty extends only to the original purchaser. This warranty shall not apply to fuses, batteries, or any product that has been subject to misuse, neglect, accident, or abnormal conditions of operation. In the event of failure of a product covered by this warranty, the manufacturer will repair the in
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TABLE OF CONTENTS 1 SAFETY INSTRUCTIONS……………………………………..1 2 DESCRIPTION………………………………………………………3 3 TECHNICAL DATA………………………………………………4 3.1 MEASUREMENT SPECIFICATIONS………………………….4 3.2 OPTICAL SPECIFICATIONS……………………………………6 3.3 ELECTRICAL SPECIFICATIONS………………………………7 3.4 ENVIRONMENTAL SPECIFICATIONS……………………
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5.3.1 Signal Output……………………………………………19 5.3.2 Head Ambient Temp. / Alarm Output………….20 5.3.3 Thermocouple Output…………………………………22 5.4 INPUTS FTC……………………………………………………..23 5.4.1 Emissivity Setting (analog controlled)………….24 5.4.2 Emissivity Setting (digital controlled)………….25 5.4.3 Ambient Background Temperature Compensation………………………………………..
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8 ACCESSORIES…………………………………………………….46 8.1 OVERVIEW……………………………………………………….46 8.2 ADJUSTABLE MOUNTING BRACKET…………………….48 8.3 FIXED MOUNTING BRACKET………………………………49 8.4 AIR PURGING JACKET………………………………………..50 8.5 AIR COOLING SYSTEM……………………………………….52 8.6 RIGHT ANGLE MIRROR……………………………………..57
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11.6.2 Analog Output, Scaling……………………………73 11.6.3 Alarm Output………………………………………….73 11.6.4 Factory default values……………………………….73 11.6.5 Lock Mode……………………………………………….74 11.6.6 Mode Setting for the Digital Input FTC3…….74 11.6.7 Changing the Sensing Head Calibration Data74 11.6.8 Ambient Background Temperature Compensation………………………………………………
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Safety Instructions 1 Safety Instructions This document contains important information, which should be kept at all times with the instrument during its operational life. Other users of this instrument should be given these instructions with the instrument. Eventual updates to this information must be added to the original document. The instrument should only be operated by trained personnel in accordance with these instructions and local safety regulations. Acceptable Operation
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Safety Instructions Operating Instructions The following symbols are used to highlight essential safety information in the operation instructions: Helpful information regarding the optimal use of the instrument. Warnings concerning operation to avoid instrument damage. Warnings concerning operation to avoid personal injury. Pay particular attention to the following safety instructions. Use in 110 / 230 VAC electrical systems can result in electrical haza
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Description 2 Description The miniature infrared sensors MI are noncontact infrared temperature measurement systems. They accurately and repeat ably measure the amount of energy emitted from an object and convert that energy into a temperature signal. The following outputs are available: • J‐Thermocouple • K‐Thermocouple • 0 ‐ 5 Volt • 0 ‐ 20 mA or 4 ‐ 20 mA • 10 mV / °C head ambient temperature signal • RS232 interface • optional: RS485 interface The sensing head is protect
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Technical Data 3 Technical Data 3.1 Measurement Specifications Temperature Range LT ‐40 to 600°C (‐40 to 1112°F) for J‐Thermocouple: ‐25 to 600°C (‐13 to 1112°F) Spectral Response LT 8 to 14 μm Response Time All models 150 ms (95% response) Accuracy LT ± 1% or ± 1°C (± 2°F) whichever is greater LT ± 2°C (± 4°F) for target temp. < 20°C (68°F) TC outputs ± 1% or ± 2.5°C (± 5°F) whichever is greater At ambient temperature 23°C ±5°C (73°F ±9°F) Repeatability All models ± 0.5%
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Technical Data Temperature Resolution LT ± 0.1 K (± 0.2°F)* ± 0.25 K (± 0.5°F)** * For a zoomed temperature span of 300°C (600°F) ** For the full temperature range of the unit Temperature Coefficient MIC ± 0.05 K per K or ± 0,05% / K whichever is greater, at ambient: 23 to 125°C (73 to 185°F) MIH ± 0.05 K per K or ± 0,05% / K whichever is greater, at ambient: 23 to 180°C (73 to 356°F) MIC, MIH ± 0.1 K per K or ± 0.1% per K whichever is greater, at ambient: 0 to 23°C (32 to 73°F
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Technical Data 3.2 Optical Specifications Optical Resolution D:S MID, MIC; MIH 22:1 (typ.), 21:1 (guaranteed) MID, MIC; MIH 10:1 MID, MIC 2:1 At 90% energy in minimum and distance 400 mm (15.7 in.) Figure 1: Spot Size Chart 6 MI
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Technical Data 3.3 Electrical Specifications Power Supply Voltage 12 to 26 VDC Current 100 mA Outputs 1. Output (OUT) 0 to 20 mA, or 4 to 20 mA, or 0 to 5 V, or Thermocouple (J or K) 2. Output (AMB) 0 to 5 V output for head ambient temperature (0 to 500°C, 32 to 932°F) or output for alarm relay (software enabled, only in conjunction with RS232/485) mA Output recommended loop impedance see Figure 9 on page 19. 0 to 5 V Outputs min. load impedance 100 kΩ (a lower load impedan
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Technical Data 3.4 Environmental Specifications Ambient Temperature MIH sensing head 0 to 180°C (32 to 356°F) MIC sensing head 0 to 125°C (32 to 257°F) MID sensing head 0 to 85°C (32 to 185°F) MID with air cooling ‐18 to 200°C (0 to 392°F) Electronics box 0 to 65°C (32 to 150°F) Storage Temperature ‐10 to 85°C (14 to 185°F) Rating (Head) IP 65 (NEMA‐4), not for models with an optical resolution of 2:1 Rating (Box) IP 65 (NEMA‐4) Relative Humidity 10% to 95% non‐condensing EM
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Technical Data 3.5 Dimensions Standard cable length 1 m (3 ft.) MID/MIC: Ø 5 mm (0.2 in) MIH: Ø 3 mm (0.12 in) Figure 2: Dimensions of Sensing Head 2 mounting holes, Ø 4.5 mm (0.17 in) MI 9
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Technical Data Figure 3: Dimensions of Electronic Box 3.6 Scope of Delivery The scope of delivery includes the following: • Sensing head • 1 m head cable • Mounting nut • Electronic box • Operating instructions 10 MI
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Basics 4 Basics 4.1 Measurement of Infrared Temperature All surfaces emit infrared radiation The intensity of this infrared radiation changes according to the temperature of the object. Depending on the material and surface properties, the emitted radiation lies in a wavelength spectrum of approximately 1 to 20 μm. The intensity of the infrared radiation (”heat radiation”) is dependent on the material. For many substances this material‐dependent constant is known.
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Basics 4.2 Emissivity of Target Object To determine the emissivity of the target object refer to section 12.1 Determination of Emissivity on page 81. If emissivity is low, measured results could be falsified by interfering infrared radiation from background objects (such as heating systems, flames, fireclay bricks, etc. close beside or behind the target object). This type of problem can occur when measuring reflective surfaces and very thin materials such as plastic films and gl
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MI
Miniature Infrared Sensor
Operating Instructions
Rev. F 04/2006
54301
RAYMI31001MSF3 – датчик пирометра
Назначение серии пирометров Raytek MI3
Серия компактных термометров Raytek MI3
На смену серии ИК стационарных термометров Thermalert MID, Raytek выпустил серию компактных термометров MI3, с расширенными возможностями и улучшенными техническими характеристиками. Преемственность старых моделей MID и новых MI3 сохранена.
Наличие USB интерфейса в стандартном комплекте поставки, расширенный диапазон температуры и дополнительные функции обработки сигнала, позволяют встраивать датчики MI3 в системы автоматизации производственных процессов, использовать их в комплексном оборудовании.
Система MI3 состоит из датчика MI3 и блока электроники (защита IP65). Датчик и блок заказываются отдельно!
Особенности серии пирометров Raytek MI3
- Подключение до 8 датчиков к одному блоку электроники
- Концепция быстрого подключения Plug & Play
- Работа до 120 °C /180 °C без охлаждения
- Различные спектральные диапазоны
- Расширенный температурный диапазон (для LT до 1000 °C)
- Новая модель G5 до 1650 °C (5 мкм) для стекла
- Пятно измерения от 0,5 мм (“ Close Focus“)
- Модели “Fast» с временем отклика 10 мс
- Промышленный кабель (полиуретан): устойчив к маслам, кислотам и щелочам
- Лазерный прицел для 1M/2M
Технические характеристики датчика RAY MI3 100 1M SF3
Общие данные |
|
Диапазон измерения |
500… 1800°C |
Спектральный диапазон |
1 μm |
Оптическое разрешение1 |
100:1, фокус 2 мм@2200 мм |
Точность2 |
±(0,5% измер±2°C) 4 |
Воспроизводимость |
±(0,25% измер. ±1°C) |
Температурный коэффициент |
±0,05% /K от измер. |
Время отклика6 |
130 мс |
Коэффициент излучения |
0,100 … 1,100 |
Коэффициент пропускания |
0,100 … 1,100 |
Обработка сигнала |
Расчет и фиксация макс., мин. и средних значений, настройка по времени до 998 с |
Температура работы |
0 … 120°C, laser — автоматическое выключение при 65°C |
Температура хранения |
-20 … 120° |
Стандарт защиты |
IP65 |
Защита от электромагнитных полей |
EN 61326-1:2006 |
1 90% энергии 2 при окружающей температуре 23°C ± 5°C, ε = 1.0 3 что больше 4 ± 2°C при температуре < 20°C 5 для масштабируемого интервала < 500°C 6 90% |
Комплектация датчика Raytek MI3
- Датчик пирометра;
- Руководство по эксплуатации.
Дополнительная комплектация датчика Raytek MI3
- Длина кабеля: 3 м, 8 м, 15 м, 30 м
- Датчик для OEM систем, не требующий блока электроники
- Регулируемый монтажный кронштейн
XXXMIACAB для LT, G5 / XXXMI3100ADJB 1M, 2M - Корпус воздушного охлаждения (XXXMIACCJ: 0,8 м, XXXMIACCJ1: 2,8
Технические параметры (спецификация) и комплект поставки товара могут быть изменены производителем без предварительного уведомления.
Информация носит справочный характер и не является публичной офертой, определяемой положениями Статьи 437 Гражданского кодекса Российской Федерации.
Документы, файлы, паспорт, инструкция Raytek MI3 100 1M SF3
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RayTek MI Miniature Infrared Sensor — page 1
MI Miniature Infrared Sensor Operating Instructions Rev. F 04/2006 54301 …
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RayTek MI Miniature Infrared Sensor — page 2
Declaratio n of Conformity for the European Communit y This instrument conforms to: EMC: IEC/EN 61326 ‐ 1 Safety: EN 61010 ‐ 1:1993 / A2:1995 …
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RayTek MI Miniature Infrared Sensor — page 3
Contacts Europe Raytek GmbH 13127 Berlin, German y Blankenburger Str. 135 Tel: +49 30 478008 – 0 +49 30 478008 – 400 Fax: +49 30 4710251 raytek@raytek.de USA Raytek Corporation CA 95061 – 1820, Santa …
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RayTek MI Miniature Infrared Sensor — page 4
W ARRANTY The manufacturer warrants this ins trument to be free from defects in material and workmans hip under normal use and service for the period of two years fr om date of purchase. This warranty extends o …
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RayTek MI Miniature Infrared Sensor — page 5
T ABLE OF C ONTENTS 1 SAFETY INSTRUCTIONS…………………………………….. 1 2 DESCRIPTION ……………………………………………………… 3 3 TECHNICAL DATA ……………………………………………… 4 3.1 M EASUREMENT S PECIFICATIONS ……………………… …
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RayTek MI Miniature Infrared Sensor — page 6
5.3.1 Signal Output …………………………………………… 19 5.3.2 Head Ambient Temp. / Alarm Out p ut …………. 20 5.3.3 Thermo couple Output ………………………………… 22 5.4 I NPUTS FTC…………………………………………………….. 23 5.4.1 …
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RayTek MI Miniature Infrared Sensor — page 7
8 ACCESSORIES ……………………………………………………. 46 8.1 O VERVIEW ………………………………………………………. 46 8.2 A DJUSTABLE M OUNTING B RACKET ……………………. 48 8.3 F IXED M OUNTING B RACKET ……………………………… 49 8.4 A IR ? …
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RayTek MI Miniature Infrared Sensor — page 8
11.6.2 Analog Output, Scaling …………………………… 73 11.6.3 Alarm Output…………………………………………. 73 11.6.4 Factory defaul t values ………………………………. 73 11.6.5 Lock Mode ………………………………………………. 74 11.6.6 Mode …
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RayTek MI Miniature Infrared Sensor — page 9
Safety Instru ctions MI 1 1 Safety Instructions This document contains important infor mation, which should be kept at all times with the instrumen t during its operational life. Other users of this instrument should be ? …
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RayTek MI Miniature Infrared Sensor — page 10
Safety Instru ctions 2 MI Operating In struc tions The following symbols are used to highlight essential safe ty information in the operation in structions: Helpful information regarding the optimal use of the instrume nt. Warnings ? …
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RayTek MI Miniature Infrared Sensor — page 11
Description MI 3 2 Description The miniature infrared sensor s MI are noncontact infrared temperature me asurement sys tems. They accurately and repeat ably measure the amoun t of energy emitted from an object and convert …
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RayTek MI Miniature Infrared Sensor — page 12
Technical Data 4 MI 3 Technical Data 3.1 Measur ement Specif ications Temperature Range LT ‐ 40 to 600°C ( ‐ 40 to 1112°F) for J ‐ Thermocouple: ‐ 25 to 600°C ( ‐ 13 to 1112°F) Spectral Response LT 8 to 14 ? …
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RayTek MI Miniature Infrared Sensor — page 13
Technical Data MI 5 Temperature Resolution LT ± 0.1 K (± 0.2°F)* ± 0.25 K (± 0.5°F)** * For a zoomed temperat ure spa n of 300°C (600°F) ** For the full temperature range of the unit Temperature …
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RayTek MI Miniature Infrared Sensor — page 14
Technical Data 6 MI 3.2 Optica l Specifications Optical Resolution D:S MID, MIC; MIH 22:1 (typ.), 21:1 (guaranteed) MID, MIC; MIH 10:1 MID, MIC 2:1 At 90% energy in minimum and distanc e 400 mm (15.7 in.) F …
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RayTek MI Miniature Infrared Sensor — page 15
Technical Data MI 7 3.3 Electric al Specifications Power Supply Voltage 12 to 26 VDC Current 100 mA Outputs 1. Output (OUT) 0 to 20 mA, or 4 to 20 mA, or 0 to 5 V, or Thermocouple (J or K) 2 …
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RayTek MI Miniature Infrared Sensor — page 16
Technical Data 8 MI 3.4 Environmental Specif ications Ambient Temperature MIH sensing head 0 to 180°C (32 to 356°F) MIC sensing hea d 0 to 125°C (32 to 257°F) MID sensing head 0 to 85°C (32 to 185°F) …
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RayTek MI Miniature Infrared Sensor — page 17
Technical Data MI 9 3.5 Dimensions Figure 2: Dim ensions of Se nsing Head Standard cable length 1 m (3 ft.) MID/MIC: Ø 5 mm (0.2 in) MIH: Ø 3 mm (0.12 in) 2 mounting holes, Ø 4.5 mm ( 0.17 in ) …
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RayTek MI Miniature Infrared Sensor — page 18
Technical Data 10 MI Figure 3: Dim ensions of Ele ctronic Box 3.6 Scope of Delivery The scope of delivery includes the following: • Sensing head • 1 m head cable • Mounting nut • Electronic box • Operating in …
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RayTek MI Miniature Infrared Sensor — page 19
Basics MI 11 4 Basics 4.1 Measur ement of Infr ared Temperature All surfaces emit infrared rad iation The intensity of this infr ared radiation changes according to the temperatur e of the object. Depending on the materia …
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RayTek MI Miniature Infrared Sensor — page 20
Basics 12 MI 4.2 Emissivity of Target Object To determine the emissivity of the target object refer to section 12.1 Determination of Emissivity on page 81. If emissivity is low, measured results could be falsified …
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RayTek MI Miniature Infrared Sensor — page 21
Basics MI 13 4.5 Electric al Interference To minimize electrical or electromagnetic interference or “noise” be aware of the following: • Mount th e unit as far away as possible from potential sources of electrical in …
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RayTek MI Miniature Infrared Sensor — page 22
Installation 14 MI 5 Installation 5.1 Positio ning Sensor location depends on the application. Before deciding on a location, you need to be aware of the ambient temp erature of the location, the atmospheric quality of …
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RayTek MI Miniature Infrared Sensor — page 23
Installation MI 15 Figure 4: Proper Sensor Placement 5.2 Wiring 5.2.1 Sensor Head Cable The manufacturer preinstall’s the sensor head cable between sensor head and electronic box. It may be shortened but not leng …
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RayTek MI Miniature Infrared Sensor — page 24
Installation 16 MI 5.2.2 Cable for Power Supply and Outputs You need to connect the power supply (12 to 26 VDC) and the signal output wires. Use only cable with outside diameter from 4 to 6 mm (0.16 …
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RayTek MI Miniature Infrared Sensor — page 25
Installation MI 17 Figure 6: Connecting of Cables to the Electronic Box 5. Put the following on the cable (as shown in the figure above): the cap (1), the plastic compression fitting (2), the rubber washer …
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RayTek MI Miniature Infrared Sensor — page 26
Installation 18 MI 5.3 Outputs Figure 7: Signal Outputs and Power Supply Electronic Box Signal Output Head Ambient Temp. or Alarm Power 0 to 5 V J or K 0 to 5 V 4 to 20 m A 0 to 20 m A 12 to 26 VDC …
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RayTek MI Miniature Infrared Sensor — page 27
Installation MI 19 5.3.1 Signal Output Figure 8: Wiring of the Signal Output (mA or V) The signal output can be configured either as current or as voltage output. The minimum load impedance for the 0 to …
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RayTek MI Miniature Infrared Sensor — page 28
Installation 20 MI 5.3.2 Head Ambient Temp. / Alar m Output This output can be configured either as output for the head ambient temperature (default configuration) or as an alarm output. Figure 10: Wiring the Outpu …
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RayTek MI Miniature Infrared Sensor — page 29
Installation MI 21 You may use a solid state relay for the alarm output. The outp ut is short circuit resistant with 100 Ω out put imped ance. The alarm output is only enabled through the DataTemp MultiDrop soft …
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RayTek MI Miniature Infrared Sensor — page 30
Installation 22 MI 5.3.3 Thermocouple Output If you are using a J ‐ or K ‐ thermocouple you must inst all a compensation cable. The cable is available as an accessory (XXXCI1CB25 for Type J, XXXCI2CB25 fo r Type …
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RayTek MI Miniature Infrared Sensor — page 31
Installation MI 23 5.4 Inputs FTC The three inputs FTC1, FTC2, and FTC3 are used for the external control of the unit. All input funct ions are enabled through the Data Temp MultiDrop software only, see the sof …
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RayTek MI Miniature Infrared Sensor — page 32
Installation 24 MI 5.4.1 Emissivity Setting (a nalog contr olled) The input FTC1 can be configured to accept an analog voltage signal (0 to 5 VDC) to provide real time emissivi ty setting. The following table show s ? …
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RayTek MI Miniature Infrared Sensor — page 33
Installation MI 25 5.4.2 Emissivity Setting ( digital controlle d) The sensor’s electronics contains a table with 8 pre ‐ installed settings for emissivity. To activate the se emissi vity settings, you need to have the inputs …
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RayTek MI Miniature Infrared Sensor — page 34
Installation 26 MI 5.4.3 Ambient Background Temperature Compensatio n The sensor is capable of improving the accuracy of target temperature me asurements by taking into account the ambient or background temperature. This featu re …
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RayTek MI Miniature Infrared Sensor — page 35
Installation MI 27 • Ambient background temperatu re compensation from a second temperature sensor (infrared or contact te mperature sensor) ensures extremely accurate results. For example, the outpu t of the second unit, set fo …
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RayTek MI Miniature Infrared Sensor — page 36
Installation 28 MI 5.4.4 Trigger and Hold Function The FTC3 input can be used as ex ternal trigger in conjunction with the software trigger mo de setting “Trigger” or “Hold”. Figure 17: Wiring of FTC3 as ? …
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RayTek MI Miniature Infrared Sensor — page 37
Installation MI 29 Hold: This mode acts as external generated hold function. A transition at the input FTC3 from logical high level to ward logical low level will transfer the current temperature toward the output. …
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RayTek MI Miniature Infrared Sensor — page 38
Installation 30 MI 5.5 Connec ting to the PC via RS232 The RS232 interface comes with each model. Connect a single unit with a RS232 COM port by using the connection kit RAYMISCON. Figure 20: Connecting the …
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RayTek MI Miniature Infrared Sensor — page 39
Installation MI 31 5.6 Installin g of Multiple Sensors vi a RS485 The distance between the sensor and a computer can be up to 1200 m (4000 ft.) via RS485 interface. This allows ample distance from the harsh …
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RayTek MI Miniature Infrared Sensor — page 40
Installation 32 MI For an installation of two or more sensor s in a RS485 network, each sensor is wired parallel to the othe rs. You may connect up to 32 units. Make sure to deactiva te the preset shunt …
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RayTek MI Miniature Infrared Sensor — page 41
Installation MI 33 Go to the menu <Setup> <Sensor Setup>, and then select the register <Advanced Setup>. Use <Polling Address> for selecting the requested address. Figure 23: Address Settin g Step ‐ by ? …
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RayTek MI Miniature Infrared Sensor — page 42
Operation 34 MI 6 Operation Once you have the sensor positioned and connected properly, the system is ready for continuous operation. The operation of the sensor can be done by means of the built ‐ in control …
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RayTek MI Miniature Infrared Sensor — page 43
Operation MI 35 6.2 Setting the Output Jumper In addition to the set mode in the unit, see section 6.3 Setting of Modes , on page 36, the unit’s outputs must be configured by switching the <Ou tput > ? …
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RayTek MI Miniature Infrared Sensor — page 44
Operation 36 MI 6.3 Setting of Modes You can easily determine the unit’s mode or parameter by doing the following: Press the <Mode> butto n until the symbol for the actual set mode appears in the displa …
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RayTek MI Miniature Infrared Sensor — page 45
Operation MI 37 Display Mode Range C Target Temperature* (effected by signal processing) not adjustable A Head Ambient Temper ature not adjustable T Target Temperature (not effected by signal processing) not adjustable Output Mode mV mV output (default) TCK thermocouple type K output TCJ thermocouple type J output 4 — 20 4 — 20 …
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RayTek MI Miniature Infrared Sensor — page 46
Operation 38 MI 6.4 Post Processing 6.4.1 Averaging Averaging is used to smooth the output signal. The signal is smoothed depending on the defined time basis, whereby the outp ut signal track s the detector signal …
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RayTek MI Miniature Infrared Sensor — page 47
Operation MI 39 object), the output signal reaches only 90% magnitude of the actual object temperatur e after the defined average time. …
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RayTek MI Miniature Infrared Sensor — page 48
Operation 40 MI 6.4.2 Peak Hold The output signal follows the object temperature until a maximum is found. Once the hold time is exceeded the output signal, tracks and output the act ual object temperature and …
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RayTek MI Miniature Infrared Sensor — page 49
Operation MI 41 6.4.3 Valley Hold The output signal follows the object temper ature until a mini mum is found. Once the hold time is exceeded the output signal, tracks and output the act ual object temperature and …
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RayTek MI Miniature Infrared Sensor — page 50
Operation 42 MI 6.4.4 Advanced Peak Hold This function searches the sensor signal for a local maximu m (peak) and writes this value to the output until a new local maxi mum is found. Before the algorithm restar …
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RayTek MI Miniature Infrared Sensor — page 51
Operation MI 43 6.4.5 Advanced Valley Hold This function works similar to the advanced peak hold function, except it will search the signal for a local minimum. 6.4.6 Advanced Peak Hold with Averaging The output ? …
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RayTek MI Miniature Infrared Sensor — page 52
Operation 44 MI 6.5 Factory Defa ults For activating the unit’ s factory default value s press the <Mode/Up> buttons on the electronic board simultaneously. The factory default values are to be found in section 11 …
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RayTek MI Miniature Infrared Sensor — page 53
Options MI 45 7 Options Options are items tha t are factory installed and must be specified at time of order. The following are available: • Longer cable lengths: 3 m / 9.8 ft. (…CB3), 8 m / 26.2 ft …
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RayTek MI Miniature Infrared Sensor — page 54
Accessories 46 MI 8 Accessories 8.1 Overvi ew A full range of accessories for various applicatio ns and industrial environme nts are available. Accessories include items that may be ordered at any time and added on ‐ sit …
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RayTek MI Miniature Infrared Sensor — page 55
Accessories MI 47 Figure 30: Standard Mounting Accessories Sensing Head Adjustable Bracket Fixed Bracket Electronic Box …
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RayTek MI Miniature Infrared Sensor — page 56
Accessories 48 MI 8.2 Adjustable Mountin g Bracket Figure 31: Adjustable Mo unting Bracket (XXXMIACAB) …
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RayTek MI Miniature Infrared Sensor — page 57
Accessories MI 49 8.3 Fixed Moun ting Bracket Figure 32: Fixed Mounting Bracket (XXXMIACFB) …
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RayTek MI Miniature Infrared Sensor — page 58
Accessories 50 MI 8.4 Air Purg ing Jacket The air purge jacket is used to keep dust, moi sture, airborne particles, and vapors away from the sensing he ad. Clea n, oil free air is recommended. The air purge jac …
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RayTek MI Miniature Infrared Sensor — page 59
Accessories MI 51 Figure 34: Mounting the Air Purge Jacket 1. Remove the sensor (1) and cable from the electro nic box by disconnecting the wires from the electronic box. 2. Open the Air Purging Jacket (3, …
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RayTek MI Miniature Infrared Sensor — page 60
Accessories 52 MI 8.5 Air Co oling System The sensing head can operate in ambient temperatures up to 200°C (392°F) with the air ‐ cooling system. The air ‐ cooling sy stem comes with a T ‐ adapter including 0.8 m ? …
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RayTek MI Miniature Infrared Sensor — page 61
Accessories MI 53 Figure 37: Maximum Ambient Temperature depending on Air Flow and Hose Length Note : “Hose Length“ is the length of hose exposed to high ambient temperature (no t the overall length of the …
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RayTek MI Miniature Infrared Sensor — page 62
Accessories 54 MI Figure 38: Air Cooling System: Purgi ng Jacket The Air Cooling Sys tem consists of: (1) sensing head (2) inner plastic fitti ng (air purging jacket) (3) front part of the air ‐ purging jacket (4 …
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RayTek MI Miniature Infrared Sensor — page 63
Accessories MI 55 Figure 39: Air Cooling System: T ‐ Adapter …
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RayTek MI Miniature Infrared Sensor — page 64
Accessories 56 MI Figure 40: Dimensions of Air Cooling System Hose: inner Ø : 9 mm (0.35 in) outer Ø : 12 mm (0.47 in) …
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RayTek MI Miniature Infrared Sensor — page 65
Accessories MI 57 8.6 Right Angle Mirror The right angle mirror comes in two different versions: XXXMIACRAJ right angle mirror as accessory for air purging jacket or air cooling system XXXMIACRAJ1 right angle mirror …
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RayTek MI Miniature Infrared Sensor — page 66
Accessories 58 MI 8.7 Box Lid Figure 43: Box Lid with Vi ew Port for Post Ins tallations (XXXMIACV) …
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RayTek MI Miniature Infrared Sensor — page 67
Accessories MI 59 8.8 Protective Window The protective windo w can be used to protect the sensing head from dust and other contam ination. This should be applied especially for sensors without a lens. These are all …
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RayTek MI Miniature Infrared Sensor — page 68
Maintenance 60 MI 9 Maintenance Our sales representatives and cust omer service are always at your disposal for questi ons regarding application assistance, calibration, repair, and solutions to specific problems. Please contact y …
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RayTek MI Miniature Infrared Sensor — page 69
Maintenance MI 61 9.2 Fail ‐ Safe Operat ion The Fail ‐ Safe system is designed to alert the operator and provide a safe output in case of an y syste m failure. The sensor is designed to shutdown the process in …
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RayTek MI Miniature Infrared Sensor — page 70
Maintenance 62 MI Error Codes via RS232/485 Output Error Code Description T—— Invalid temperature reading T>>>>>> Temperature over range T<<<<<< Temperature under range Table 8: Error Codes (v ia RS232/485) Error Codes for the LCD Display …
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RayTek MI Miniature Infrared Sensor — page 71
Maintenance MI 63 9.3 Sensing Head Exchange Sensing heads and electronic b oxes can only be interchanged in accordance to the following ta ble! MID02 MIC02 MI D10 MIC10 MIH10 MID20 MIC20 MIH20 MID02 x x x x MIC02 x x x x MID10 x x x x MIC10 x x x x M I H 1 0 x M …
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RayTek MI Miniature Infrared Sensor — page 72
Maintenance 64 MI <Down/Up> button s. Activa te your settings by pressing the <Mode> button. Figure 45: Sensing Head Calibration Data printed on the Cable (e.g. Head with two blocks of 4 numbers) For MIH ? …
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RayTek MI Miniature Infrared Sensor — page 73
Software MI 65 10 Software For use with RS232 or RS485 models, DataTemp MultiDrop software allows access to the extended digital features of the MID with an easy ‐ to ‐ use interface. Compatible with WIN 95/98/NT/2000/ …
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RayTek MI Miniature Infrared Sensor — page 74
Programming Guide 66 MI 11 Programming Guide This section explains th e sensor’s communication protocol. A protocol is the set of commands that define all possible communications with the sensor. The commands are describ …
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RayTek MI Miniature Infrared Sensor — page 75
Programming Guide MI 67 11.1 Transf er Modes The unit’s serial interface is either RS232 or RS485, depending on the model. Settings: transfe r rate: 9.6 kBaud, 8 data bits, 1 stop bit, no parity, flow control: ? …
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RayTek MI Miniature Infrared Sensor — page 76
Programming Guide 68 MI 11.2 Gener al Command Structure Requesting a paramete r (Poll Mode) ?ECR “?“ is the command for “Request“ “E“ is the parameter req uested “CR“ (carriage retu rn, 0Dh) is closing …
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RayTek MI Miniature Infrared Sensor — page 77
Programming Guide MI 69 After switc hing the power to “ON“, the device is sending a notification: #XICRLF “#“ is the parameter for “Notification“ “XI“ is the value for the notifi cation (her e “XI“; …
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RayTek MI Miniature Infrared Sensor — page 78
Programming Guide 70 MI 11.4 Device Setup 11.4.1 Temperat ure Calcula tion U=C unit for the tempe rature value E=0.950 Emissivity setting (Cau tion: according to the sett ings for “ES”, see section 11.4.2 Emissiv ity Setting ? …
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RayTek MI Miniature Infrared Sensor — page 79
Programming Guide MI 71 There are eight ent ries possible for emissivity setting (1) and a related set point (threshold) (2). To be able to write or read the se values, use the following command s: EP=2 set poi …
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RayTek MI Miniature Infrared Sensor — page 80
Programming Guide 72 MI 11.4.3 Post Processing The following parameters can be set to deter mine the post processing mode, see section 6.4 Post Proc essing on page 38. P=5 peak hold, hol d time: 5 s F=12.5 vall …
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RayTek MI Miniature Infrared Sensor — page 81
Programming Guide MI 73 11.6 Device Con trol 11.6.1 Output for the Ta rget Temperature The signal output can be set to 4 – 20 mA, 0 – 20 mA or mV. If current output is activated, the output can …
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RayTek MI Miniature Infrared Sensor — page 82
Programming Guide 74 MI XF factory default values will be set 11.6.5 Lock Mode The access to the unit is possible via serial interface (software) and via the direct user input (mode butto ns, LCD display). It ? …
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RayTek MI Miniature Infrared Sensor — page 83
Programming Guide MI 75 AC=2 compensation with an extern al voltage signa l at the analog input FTC2 (0 V – 5V corresponds to low end and high end of temperature range), current ambient temperature is readable ? …
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RayTek MI Miniature Infrared Sensor — page 84
Programming Guide 76 MI 11.7 Multip le Units (RS485 Multidrop Mode) Up to 32 units can be connected within a RS485 networ k, see section 5.6 Installing of Mult iple Sensors via RS485 on page 31. To direct a …
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RayTek MI Miniature Infrared Sensor — page 85
Programming Guide MI 77 11.8 Command Set Description Char Format P B S Legal values Factory default LCD Poll parameter ? ?X/?XX * ?T Set parameter = X/XX=… * E=0 . 85 Set parameter without EEPROM storage # X/XX# * E#0.85 Multidrop addressing 001?E * * answer: 001!E0.95 Error message * *Syntax error Acknowledge message …
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RayTek MI Miniature Infrared Sensor — page 86
Programming Guide 78 MI Description Char Format P B S Legal values Factory default LCD Source: emissivity / setpoint for alarm output ES X * * I=constant number (E=0.950) E=external analogous input FTC1 D= E/XS digital selected FTC1-3 I Presel. emissivity value EV n.nnn * * 0.100 — 1. 100 Valley hold time(4) F nnn.n * * * 0.000 — 99 …
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RayTek MI Miniature Infrared Sensor — page 87
Programming Guide MI 79 Description Char Format P B S Legal values Factory default LCD Presel. setpoint / relay function SV nnn.n (1) Target temperature T nnn.n * * in current scale (°C / °F) Temperature unit U X * * * C / F C U Poll / Burst mode V X * * P = poll B = burst Poll mode Burst string contents X$ * Multidrop address XA …
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RayTek MI Miniature Infrared Sensor — page 88
Programming Guide 80 MI (3) $ = UTQE (4) setting average / peak / valley / advanced hold cancels all other hold modes (6) LT: 23°C (73°F) (7) LT: 500°C (932°F) (8) LT: 0°C (32°F) (9) XZ = 0123 …
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RayTek MI Miniature Infrared Sensor — page 89
Appendix MI 81 12 Appendix 12.1 Determ ination of Emissivity Emissivity is a measure of an object’s ability to absorb and emit infrared energy. It can have a value between 0 and 1.0. For example a mirror …
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RayTek MI Miniature Infrared Sensor — page 90
Appendix 82 MI 0.95. Finally, measure the te mperature of an adjacent area on the object and adjust the em issivity unt il the sa me tempera ture is reached. This is the correct emissivity for the measured material . ? …
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RayTek MI Miniature Infrared Sensor — page 91
Appendix MI 83 12.2 Typical Emissivity Va lues The following table provides a brief reference guide for determining emissivity and can be used when one of the above methods is not practical. Emissivity value s shown ? …
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RayTek MI Miniature Infrared Sensor — page 92
Appendix 84 MI M ETALS Material Emissivity 3.9 µm 5 µm 8 – 14 µm Aluminum Unoxidized 0.02-0.2 0.02-0.2 0.02-0.1 Oxidized 0.2-0.4 0.2-0.4 0. 2-0.4 Alloy A3003, Oxidized 0.4 0.4 0.3 Roughened 0.1-0.4 0.1-0.4 0.1-0.3 Polished 0.02-0.1 0.02-0.1 0.02-0.1 Brass Polished 0.01-0.05 0.01-0.05 0.01-0.05 Burnished 0.3 0.3 0.3 Oxidized 0.5 0.5 …
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RayTek MI Miniature Infrared Sensor — page 93
Appendix MI 85 Polished 0.05-0.2 0.05-0.2 0.05-0.1 Rough 0.4 0.4 0. 4 Oxidized 0.2-0.7 0.2-0.7 0. 2-0.6 Magnesium 0.03-0.15 0.03-0.15 0.02-0.1 Mercury 0.05-0.15 0.05-0.15 0.05-0.15 Molybdenum Oxidized 0.3-0.7 0.3-0.7 0. 2-0.6 Unoxidized 0.1-0.15 0.1-0.15 0.1 Monel (Ni-Cu) 0.1-0.5 0.1-0.5 0.1-0.14 Nickel Oxidized 0.3-0.6 0.3-0.6 0. 2-0.5 …
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RayTek MI Miniature Infrared Sensor — page 94
Appendix 86 MI N ON -M ETALS Material Emissivity 3.9 µm 5 µm 8 – 14 µm Asbestos 0.9 0.95 Asphalt 0.95 0.95 Basalt 0.7 0.7 Carbon Unoxidized 0.8-0.9 0.8-0.9 Graphite 0.7-0.9 0.7-0.8 Carborundum 0.9 0.9 Ceramic 0.8-0.95 0.95 Clay 0.85-0.95 0.95 Concrete 0.9 0.95 Cloth 0.95 0.95 Glass Plate 0.98 0.85 “Gob” 0.9 — Gravel 0.95 0.95 …
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RayTek MI Miniature Infrared Sensor — page 95
Index MI 87 Index Accessories 46 Accuracy 4 Air pressure 12 Air Purge 46 Air Purge Jacket 12 Ambient Temperature 12 Average 60 Control Panel 34, 59 Emissivity 5, 11, 12, 60, 80, 82, 84, 85 Loop impedance 19 Maintenance 60 Mirror 57, 80 Network 32 Noise 13 Optical Resolution 6 Power Supply 60 Repeatability 4 Response Time 4 Sensing H …