MANUAL M390S Blackbody Calibration Source
Confidential Information The material contained herein consists of information that is the property of LumaSense Technologies and intended solely for use by the purchaser of the equipment described in this manual. All specifications are subject to change without notice. Changes are made periodically to the information in this publication, and these changes will be incorporated in new editions.
Contents 1 General Information...................................................................................................... 5 1.1 Information about the user manual..................................................................... 5 1.1.1 Legend ................................................................................................................. 5 1.2 Safety ..................................................................................................................... 5 1.2.
Appendix A: Drawings ...................................................................................................... 27 Appendix B: ASCII/BASIC ................................................................................................... 30 Appendix C: Declaration of Conformance .......................................................................
1 General Information 1.1 Information about the user manual Congratulations on choosing the high quality and highly efficient Mikron blackbody. This manual provides important information about the instrument and can be used as a work of reference for installing, operating, and maintaining your blackbody. It is important that you carefully read the information contained in this manual and follow all safety procedures before you install or operate the instrument.
Warning: DO NOT USE NITROGEN (N2) FOR PURGE GAS. AT HIGH TEMPERATURES, CYNIDE GAS COULD BE GENERATED. 1.3 Limit of Liability and Warranty All general information and notes for handling, maintaining, and cleaning this instrument are offered according to the best of our knowledge and experience. All Mikron blackbodies from LumaSense Technologies have a regionally effective warranty period. Please check our website at http://info.LumaSenseinc.com/warranty for up-to-date warranty information.
Return the instrument upon receipt of the RMA nµmber, transportation prepaid. Clearly indicate the assigned RMA nµmber on the shipping package exterior. Refer to Section 1.6, Shipments to LumaSense for Repair, for shipping instructions. Technical Support can be contacted by telephone or email: Santa Clara, California Telephone: +1 408 727 1600 or +1 800 631 0176 Email: support@LumaSenseinc.com Frankfurt, Germany Telephone: +49 (0) 69 97373 0 Email: eusupport@LumaSenseinc.
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2 Introduction 2.1 Description The M390 series are high temperature blackbody calibrators that can produce a very high temperature, high emissivity targets, and at the same time stabilize at the required temperature within a few minutes of switch-on. The cavity is a graphite tube target which is available with a 16mm (.625") diameter, or optionally 25mm (1.00") or 38mm (1.5”) aperture with an effective emissivity of 0.995.
2.2 Technical Data This Model Model Temperature Range [] M390-S 600 to 3000 °C (1110 to 5430 °F) Custom split design Accuracy: Cavity: Source Diameter: Emissivity: Cooling: Cooling Inlet Pressure: Purge Gas: Purge Gas Inlet Pressure: Heating Element Type: Temperature Sensor: Method of Control: Remote Set Point: Warm-up Time: Operating Ambient Temp.: Operating Ambient Humidity: Power Requirements: Power Connector: Dimensions: Blackbody Enclosure: Controller: Maximum Weight: M390S Manual ±0.
3 Installation 3.1 Installing the M390S To install the M390S: 1. Allow the M390 to warm-up to room temperature for at least 2 hours after unpacking and prior to applying power to remove any condensation. 2. Connect the power cable with IEC-309 at the VAC to the power cable supplied with the M390S. 3. Connect the power cable to a VAC service that matches the power requirement specification noted in the SPECIFICATION section and on the SPECIFICATION LABEL located on the rear of the M390S. 4.
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4 Operation 4.1 Starting Up To start up the M390S: 1. Turn on the power switch/breaker and allow 20 seconds for the system to self test. Warning: Do not connect or disconnect while power is on. Do not attempt to operate without cables connected. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Open valve at argon purge tank. Adjust regulator at your tank for 15 psi, Turn bypass valve to high flow. Low gas flow light should turn off. Cover source opening for at least 10 seconds. Leave flow at high for another 30 seconds.
Blackbody Temperature Blackbody Setpoint Eurotherm controller 4.2.1 Other Controller Modes If, for some reason, the power must be turned off while monitoring temperature, you may manually set the power to none by pressing the AUTO, then raise or lower the power level in the same manner used to change the setpoint. Set to 0% to apply NO power to the blackbody. DANGER: NEVER SET THE POWER TO ANY LEVEL EXCEPT 0% or <16% MANUALLY. If left unattended, the blackbody will overheat and be damaged.
9. Press the PAGE button until ACCESS appears. 10. Press the SCROLL button. 11. Press the DOWN button until LEVEL 1 appears and wait. The controller will reset. 4.5 Setting Serial Communications The M390S is configured for: [X ] RS232 – standard [ ] RS422 - 4 Wire (Option) [ ] RS485 - 2 Wire (Option) The controller has a distinct address. The factory address setting is 1. To change the address: 1. Press and hold PAGE button. The word ACCESS will appear in lower display. 2. Press SCROLL button.
4.5.1 RS485 Option RS485 two wire is available as an option. The connection scheme is shown below: M390 Unit 1 (Address 1) M390 Unit 2 (Address 2) RS485 for multi-drop applications Each M390S address must be set to a different value. To change the address of an M390 (if RS485/RS422 was ordered): 1. Press the PAGE button. ACCESS appears in the lower display. 2. Press the SCROLL button. LEVEL 1 appears in the lower display. 3. Press the UP button until LEVEL 3 appears in the lower display. 4.
4.6 PID Tuning Constants The PID tuning constants have been factory set for optimum performance and are noted below. Heating Heating 2 Heating 3 Heating 4 PB _____ PB2 _____ PB3 _____ PB4 _____ INTEGRAL _____min/repeat INT2 _____ INT3 _____ INT4 _____ DERIVATIVE___sec DERV2 _____ DERV3 _____ DERV4 _____ 4.7 Controller Calibration This blackbody has a precision temperature sensor monitoring the emitter temperature.
Typical Radiance temperature calibration look-up table (LUT) used To gain access to the custom look-up table: Refer to the 4 elliptical buttons on the face of the controller and use this procedure. 1 2 3 4 1. Press and Hold 1 until ACCESS appears. If Access Level and Level 1 appears, skip to step 3. 2. Press 4 until Level 3 appears. 3. Press 4 until 3 appears. Wait and "pass" appears. 4. Press 1 until Lin16 appears. 5. Press 2.
Note: Calibration points do not have to be used as pre-programmed. To dial in a different calibration point, simply change an INPUT # and the corresponding OUTPUT# to be the new desired calibration point. Set the blackbody to the calibration temperature using its setpoint. When exit radiance data is measured, dial in the new OUTPUT # temperature as described above. All cal points must be in ascending order! Example: In place of Silver freezing point correction at 961.78 °C, you prefer to use 1000 °C. 1.
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5 Maintenance 5.1 Cavity Life The life expectancy of the graphite cavity depends on the time and temperature of operation. The higher the temperature, the shorter the life spans. At temperatures near 3000 °C the life expectancy of the graphite cavity is approximately one half-hour. The life span is also affected by the gas purge purity. The presence of air or water will greatly shorten the life span when operating. We recommend an occasional visual check be made to ensure maximum system integrity. 5.
5.4 Furnace Core Disassembly The graphite core can be replaced without disconnecting cooling or purge tubing. Refer to exploded views of the furnace core assembly found in the APPENDIX of this manual. Refer to the enclosed CD that contains video files to help you with the disassembly, assembly and other cavity replacement issues that may occur. These files on the CD are: M390-Assemble.mpg - Shows how to install the cavity and quartz tube assembly M390-Disassemble.
Quartz tube with graphite foil and felt around cavity Rear Front M668 Optics Electrodes Slide this electrode out to repair/replace cavity. Electrode tension adjustment Refer to the Appendix for an exploded view of the cavity assembly. 5.5 Fuse Locations The M390 has several fuses. Refer to the table below. See the appendix for photo-view of fuse locations. Fuse Nµmber Amps/volts Location Description F1 & F4 3.
5.6 Cleaning Clean the outside of the cabinet with mild soapy solution and water only. Do not attempt to clean the emitter plate.
Index C Cavity life 21 Cleaning 24 Controller Calibration 17 Controller Modes 14 D Disposal 7 Push buttons 13 Pyrometer Alignment Check 21 R Repair 6, 7 RS485 16 S Furnace Core Disassembly 22 Fuse Locations 23 Safety 5 Safety Interlocks 21 Serial Communications 15 Service Request 6 Setpoint 13 Shutting Down 14 Starting Up 13 Storage 7 Support 6 G T General Information 5 Technical Data 10 Temperature Units 14 Transport 7 E Eurotherm iTools Software 17 F I Inspections 21 Installation 11 L Legend
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Appendix A: Drawings M390 Manual Appendix A: Drawings 27
M390 Manual Appendix A: Drawings 28
M390 Manual Appendix A: Drawings 29
Appendix B: ASCII/BASIC Typical ASCII request string to read the blackbody temperature: '-------make a request for blackbody temperature string---w$ = CHR$(4) + "0011PV" + CHR$(5) '----chr$(4) is ascii diamond symbol'----chr$(5) is ascii club symbol w$ is the string to send to the controller. For more details, refer to the Eurotherm communication manual on CD. The next page lists a very simple BASIC program to retrieve the blackbody temperature. A working executable program is also on the CD provided.
A simple BASIC program to send blackbody setpoint: CLS '-----open comm port 1 for 9600 baud, 7,E,1----OPEN "COM1:9600,E,7,1,RS,CS,DS" FOR RANDOM AS #1 inman: '-----enter desired setpoint as a string--INPUT "Enter setpoint temperature (EXIT to quit) "; sp$ '-----always make it upper case for text entry--IF UCASE$(sp$) = "EXIT" THEN GOTO endman '-----make the setpoint a number---sp = VAL(sp$) '-----retry if the entry was out of range of the blackbody-‘IF sp < 600 OR sp > 3000 THEN PRINT "invalid entry": GOTO
Appendix C: Declaration of Conformance M390 Manual Appendix C: Declaration of Conformance 32
