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RayTek 54301 - page 1
MI Miniature Infrared Sensor Operating Instructions Rev. E 10/2004 54301 Noncont act T emper atur e M easur emen t ...
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RayTek 54301 - 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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Contacts Europe Raytek GmbH Berlin, Germany Tel: +49 30 478008 – 0 +49 30 478008 – 400 (Ventes) Fax: +49 30 4710251 raytek@raytek.de USA Raytek Corporation Santa Cruz, CA USA Tel: +1 831 458 – 1110 ? ...
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W ARRANTY The manufacturer warrants this ins trument to be free from defects in material and workmanshi p under normal use and service for the period of two years fr om date of purchase. This warranty extends only ...
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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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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 Emi ...
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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 P ...
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11.6.2 Analog Output, Scaling ................................. 72 11.6.3 Alarm Output................................................. 72 11.6.4 Factory default values ..................................... 72 11.6.5 Lock Mode ....................................................... 73 11.6.6 Mode ...
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Safety Instru ctions 1 Safety Instructions This document contains important infor mation, which should be kept at all times with the instrumen t during its operation al life. Other users of this instrument should be given ...
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Safety Instru ctions Operating Ins tructions 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 concerning ? ...
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Description 2 Description The miniature infrared sensor s MI are noncontact infrared temperature me asurement syste ms. They accurately and repeat ably measure the amoun t of energy emitted from an object and convert that ener ...
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Technical Data 3 Technical Data 3.1 Measur ement Specific ations 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 μ m Re ...
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Technical Data Temperature Resolution LT ± 0.1 K (± 0.2°F)* ± 0.25 K (± 0.5°F)** At ambient temperature 23°C ± 5°C (73°F ± 9°F) * For a zoomed temperat ure span of 300°C (600°F) ** For the ...
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Technical Data 3.2 Optica l Specifications Optical Resolution D:S MID, MIC 2:1 or 10:1 MIH 10:1 At 90% energy in minimum and distanc e 400 mm (15.7 in.) Distance: Sensor to Object [in] Spot Diameter [in] Spot Diameter [mm] Distance: Sensor to ...
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Technical Data 3.3 Electric al Specifications Power Supply Voltage 12 to 24 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 ...
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RayTek 54301 - page 16
Technical Data 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) MID with ...
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RayTek 54301 - page 17
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: Dim ensions of Se nsing Head 2 mounting holes, Ø 4.5 mm ( 0.17 in ) Figure 3: Dim ensions of E lectronic Box MID 9 ...
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Technical Data 3.6 Scope of Delivery The scope of delivery includes the following: • Sensing head • 1 m head cable • Mounting nut • Electronic box • Operating instruct ions 10 MID ...
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Basics 4 Basics 4.1 Measur ement of Infrar ed Temperature All surfaces emit infrared radiation The in tensity of this infrared radiation changes according to the temperatur e of the object. Depending on the materia l and s ...
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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 80. If emissivity is low, measured results could be falsified by int ...
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RayTek 54301 - page 21
Basics 4.5 Electric al Interference To minimize electrical or electromagnetic interference or “noise” be aware of the following: • Mount the uni t as far away as possible from potential sources of electrical interference ...
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Installation 5 Installation 5.1 Positionin g 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 the l ...
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Installation best good incorrect Sensor Target greater than spot size Target equal to spot size Target smaller than spot size Figure 4: Proper Sensor Placement 5.2 Wiring 5.2.1 Sensor Head Cable The manufacture r preinstalls the sensor head cable between sensor ...
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Installation 5.2.2 Cable Preparati o ns You need to connect the power supply (12 to 24 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. Th ...
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RayTek 54301 - page 25
Installation Preinstalled cable to sensor head Output signal and p ower connector bloc k Cable that has to be installed b y the user Figure 6: Connecting of Cables to the Electronic Box 5. Put the following on the cable (as shown in the figure above): th ...
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Installation 5.3 Outputs Electronic Box 4 to 20 m A 0 to 20 m A J or K 0 to 5 V Signal Output Head Ambient Temp. or Alarm 0 to 5 V 12 to 24 VDC Power Figure 7: Signal Outputs and Power Supply 18 MID ...
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Installation 5.3.1 Signal Output Power + Power – Signal Ground Signal Out p ut 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 impedanc ...
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RayTek 54301 - page 28
Installation 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. Power + Power – Head Ambient Temp. Ground Figure 10 ...
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RayTek 54301 - page 29
Installation 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 software, see ...
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RayTek 54301 - page 30
Installation 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 K) wit ...
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RayTek 54301 - page 31
Installation 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 Dat aTem p MultiDrop software only, see the software hel ...
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RayTek 54301 - page 32
Installation 5.4.1 Emissivity Setting (analog 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 the relat ...
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RayTek 54301 - page 33
Installation 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 FTC1, F ...
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RayTek 54301 - page 34
Installation 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 is use ...
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RayTek 54301 - page 35
Installation • Ambient background temperature 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 for mV ou ...
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RayTek 54301 - page 36
Installation 5.4.4 Trigger and Hold Function The FTC3 input can be used as ex ternal trigger in conjunction with the software trigger mode setting “Trigger” or “Hold”. External switch : - contact relay, - transistor, - TTL gate, … F ...
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RayTek 54301 - page 37
Installation 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. This temp ...
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RayTek 54301 - page 38
Installation 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 RAYMINC ON. to the computer’s COM port Transfer Mode: • 9600 k ...
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RayTek 54301 - page 39
Installation 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 envir onment ...
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RayTek 54301 - page 40
Installation For an installation of two or more sensor s in a RS485 network, each sensor is wired parallel to the othe rs. You may connec t up to 32 units. Make sure to deactiva te the preset shunt resistor ...
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RayTek 54301 - page 41
Installation 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 ‐ step ins ...
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RayTek 54301 - page 42
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 ...
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RayTek 54301 - page 43
Operation 6.2 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 display, e.g. ? ...
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RayTek 54301 - page 44
Operation 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 mA current loo ...
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RayTek 54301 - page 45
Operation 6.3 Setting the Output Jumper In addition to the set mode in the unit, see section 6.2 Setting of Modes on page 35, the unit’s outputs must be configured by switching the <Ou tput > jumper in ...
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RayTek 54301 - page 46
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 outp ut signal track s the detector signal with signi ...
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RayTek 54301 - page 47
Operation object), the output signal reaches only 90% magnitude of the actual object temperatur e after the defined average time. MID 39 ...
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RayTek 54301 - page 48
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 act ual object temperature and the algori ...
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RayTek 54301 - page 49
Operation 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 the al ...
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Operation 6.4.4 Advanced Peak Hold This functi on 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 restarts search ...
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RayTek 54301 - page 51
Operation 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 d ...
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RayTek 54301 - page 52
Operation 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 .8 Command ...
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RayTek 54301 - page 53
Options 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. (…CB8) ...
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RayTek 54301 - page 54
Accessories 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 ‐ site: • Adj ...
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RayTek 54301 - page 55
Accessories Sensing Head 2:1 Adjustable Bracket Electronic Box Sensing Head 10:1 Fixed Bracket Figure 30: Standard Mounting Accessories MID 47 ...
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Accessories 8.2 Adjustable Mountin g Bracket Figure 31: Adjustable Mo unting Bracket (XXXMIACAB) 48 MID ...
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Accessories 8.3 Fixed Mounting Bracket Figure 32: Fixed Mounting Bracket (XXXMIACFB) MID 49 ...
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RayTek 54301 - page 58
Accessories 8.4 Air Purging Ja cket The air purge jacket is used to keep dust, mo isture, airborne particles, and vapors away from the sensing he ad. Clea n, oil free air is recommended. The air purge jacket with s ...
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RayTek 54301 - page 59
Accessories 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, 4) and scr ...
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RayTek 54301 - page 60
Accessories 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 (7.5 in ...
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RayTek 54301 - page 61
Accessories Air Flow: 60 l / min (2.1 cubic feet per minute) 50 l / min (1.8 cfm) 40 l / min (1.4 cfm) Hose Length Figure 37: Maximum Ambient Temperature depending on Air Flow and Hose Length Note : “Hose Length“ is the length of hose exposed to high ...
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RayTek 54301 - page 62
Accessories 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) back ...
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RayTek 54301 - page 63
Accessories Figure 39: Air Cooling System: T ‐ Adapter MID 55 ...
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Accessories Hose: inner Ø : 9 mm (0.35 in) outer Ø : 12 mm (0.47 in) Figure 40: Dimensions of Air Cooling System 56 MID ...
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Accessories 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 ...
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Accessories 8.7 Box Lid Figure 43: Box Lid with Vi ew Port for Post Ins tallations (XXXMIACV) 58 MID ...
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Accessories 8.8 Protective Window The protective wind ow can be used to protect the sensing head from dust and other contamin ation. This should be applied especially for sensors without a lens. These are all m odels ? ...
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RayTek 54301 - page 68
Maintenance 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 your local ...
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RayTek 54301 - page 69
Maintenance 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 the e ...
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RayTek 54301 - page 70
Maintenance 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 Display E ...
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Maintenance 9.3 Sensing Head Exchange MIH sensing heads and electronic b oxes can not be interchanged with MID/MIC sens ing heads and electronic boxes! The head exchange requires to type in the new sensing head calibra ...
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RayTek 54301 - page 72
Software 10 Software For use with RS232 or RS485 models, DataTemp MultiDrop softwar e allows access to the extended digital features of the MID with an easy ‐ to ‐ use interface. Compatible with WIN 95/98/NT/2000/XP, DataT ...
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RayTek 54301 - page 73
Programming Guide 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 described along ? ...
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RayTek 54301 - page 74
Programming Guide 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: none (ha ...
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RayTek 54301 - page 75
Programming Guide 11.2 Gener a l 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 the reque ...
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RayTek 54301 - page 76
Programming Guide After switc hing the power to “ON“, the de vice is sending a notification: #XICRLF “#“ is the parameter for “Notification“ “XI“ is the value for the notifi cation (her e “XI“; unit swi ...
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RayTek 54301 - page 77
Programming Guide 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 and Ala ...
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RayTek 54301 - page 78
Programming Guide 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 pointer for ? ...
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RayTek 54301 - page 79
Programming Guide 11.4.3 Post Processing The following parameters can be set to deter mine the post processing mode, see section 6.4 Post Pro cessing on page 38. P=5 peak hold, hol d time: 5 s F=12.5 valley hold, ? ...
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RayTek 54301 - page 80
Programming Guide 11.6 Device Control 11.6.1 Output for the Tar get 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 ? ...
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RayTek 54301 - page 81
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 butto ns, LCD display). It is poss ...
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RayTek 54301 - page 82
Programming Guide 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 with com ...
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RayTek 54301 - page 83
Programming Guide 11.7 Multip le Units (Multidrop Mode, RS485) 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 command ...
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RayTek 54301 - page 84
Programming Guide 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 ! !P 010 Burst ...
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RayTek 54301 - page 85
Programming Guide Description Char Format P B S Legal values Factory default LCD Source: emissivity / setpoint for alarm output ES X * * 1=constant number (E=0.950) E=external analogous input FTC1 D= E/XS digital selected FTC1-3 1 Presel. emissivity value EV n.nnn * * 0.100 - 1.100 Valley hold time(4) F nnn.n * * * 0.000 - 998.9 s (999 = in ...
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RayTek 54301 - page 86
Programming Guide 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 nnn * * 000 ? ...
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RayTek 54301 - page 87
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 ...
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RayTek 54301 - page 88
Appendix 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 has an ...
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RayTek 54301 - page 89
Appendix 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 in the ? ...
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RayTek 54301 - page 90
Appendix 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 0.5 Chromium 0 ...
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RayTek 54301 - page 91
Appendix 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 Electrolytic 0. ...
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RayTek 54301 - page 92
Appendix 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 Gypsum 0.4- ...
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RayTek 54301 - page 93
Index 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, 81, 83, 84 Loop impedance 19 Maintenance 60 Mirror 57, 80 Network 32 Noise 13 Optical Resolution 6 Power Supply 60 Repeatability 4 Response Time 4 Spectral Response 4 Spo ...
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