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LUXTRON 710, 712, 790 Users

1. B 1 OVEIVIEW 4 edie MD B 1 Using Immersion Probes for Surface Measurement B 1 Industrial Probe Use and Handling B 2 Probe Flexibility aee b dete NE mE B 2 Probe Temperature Range B 2 Caring for Probe When Notin Use B 2 Probe Eengthi inii gehen whee be CR ape mand homed ae Ete B 3 Appendix C RS 232 Serial Output Port C 1 QVelVIBW Sie eerste ea edna delis C 1 RS 232 Port Setup aussi Bese eb m edu RU C 1 5 232 ERR TREE UR REI C2 Samples Measurement and Measurement Update Time C 2 DATASAVEHFealure ost beca ete awe Prd ewe eee eke C 2 Hardware Configurations forthe RS 232 Port C 3 Character Bits sue iis sei peii nto ade aee CERTE ater CA FULL and ABBR Digital Output Message Formats CA 22 asi s C 7 Control Commands for C 7 Control Commands to Test System C 8 Contr
2. D 14 FULL and ABBR Digital Output Message Formats D 19 Time Stamps TERRAE MPEG hee D 19 Model 710 712 and 790 Fluoroptic Thermometer User Manual Appendix E Analog Output Options E 1 Analog Output Voltage AOV E 1 Analog Output Voltage 10V Range Option Analog Output Current AOC Option E 4 Appendix F Warranty and Service F 1 Limited Warranty vec ab be Damage in Shipment for the Original Purchaser F 1 What to Do in Case of a Fault n e RR RR RERO RR ATE TERR A F 2 Shipments to LUXTRON for Repair F 2 ShippingiAddress LEE a EpL Meee RISE F 2 Additional ContactInformation F 2 Table of Contents v Model 710 712 and 790 Fluoroptic Thermometer User Manual 1 0 Introduction This chapter provides an overview of the Model 710 712 and 790 LUXTRON Fluoroptic thermometers It also describes the major components and default settings of the instruments Figure 1 1 shows a typical rack mount installation of
3. 11 Temperature 105 digit Temperature 1005 digit Space normal operation Probe error detected first character of error Lower temperature limit exceeded second character of LL error e al e Higher temperature limit exceeded second character of HL error Temperature units in C normal operation Temperature units in F normal operation Probe error detected second character of PE error Lower temperature limit exceeded second character of LL error Higher temperature limit exceeded second character of HL error TableC 3 Temperature Message Format C 6 Model 710 712 and 790 Fluoroptic Thermometer User Manual Command Set The RS 232 serial port can be used to control or program the instrument by sending the proper control character Each control character or command is echoed back from the instrument If the command is not allowed or the system is currently in that mode the instrument returns a character This forms a positive handshake Table C lists the command set available through the RS 232 port Table 4 RS 232 Command Set Control Commands for Run Mode Run mode can be accessed by RS 232 port Table C 5 lists the standard control commands for Run mode Return to Standby mode CTRL T Table C 5 Run Mode Control Commands RS 232 Serial Output Port C 7 Control Commands to Test System To test the syste
4. Meas 2 Continuous Measurement Update Time Example of Temperature Measurement using the Setup Default Values Fast Temperature Measurement Parameter Values SAMPLES MEASUREMENT 1 MEASUREMENT UPDATE TIME CONTINUOUS Description The instrument takes each sample as a measurement The instrument updates four times per second with no averaging For increased accuracy and precision increase the SAMPLES MEASUREMENT Value One measurement per sample BEREE 1 second Continuous Measurement Update Time Figure4 7 Example of Fast Temperature Measurement 4 4 Model 710 712 and 790 Fluoroptic Thermometer User Manual 5 0 Maintenance and Troubleshooting This chapter discusses the following Equipment maintenance e Probe and connector maintenance Technical information e Troubleshooting Error and informational messages Instrument reinitialization e Flashlamp replacement Equipment Maintenance The instrument is shipped with black vinyl caps over the front panel probe connectors to prevent dust contamination Remove and save the caps before using instrument Replace caps on the front panel probe connectors when instrument is not in use Probe and Connector Maintenance Maintenance of the instrument essentially involves keeping the probes clean to ensure accurate temperature readings Each probe is supplied with a red cap over the connector Replacing this c
5. 10 Press or to increment or decrement to device address of the instrument choose an appropriate address between 0 and 30 11 Press YES to save changes then repeatedly press NEXT until Main menu appears Optional IEEE 488 Interface D 3 Remote Instrument Operation The instrument must be in Standby mode to send and receive data or commands The instrument enters standby mode when powered on The blinking asterisk in the display indicates the instrument is in Standby mode The instrument can be controlled or programmed by sending the proper control character Table D 3 lists the commands available through the IEEE interface eramen Funenon GonolKey Sequence Hex Gade Usenormk Operate 12h T L Send output 11h Flush output buffer 06h Lockout front panel controls OCh Unlock front panel controls Remote disable 04h Initiate reading 09h Start calibration OBh Abort calibration Oth Reset instrument Table 0 3 IEEE 488 Command Set Remote enable 05h Control Commands There are two ways to control the instrument over the digital port Run the instrument continuously Take measurements on the command of the controller D 4 Model 710 712 and 790 Fluoroptic Thermometer User Manual To run the instrument in Continuous mode 1 Send CTRL T 14h to confirm instrument is in Standby mode This assures the instrument is in Standby mode at the Main menu and not running If the instrument is in St
6. Channel 1 MN en x a 15to 48 V DC pins typically Channel 2 A zn Pin 4 X m Channel 3 BY Pin 5 A zt Pin 6 X 4 m Channel 4 A 7 we I Pin 8 A T Pin 10 Chassis Ground Figure AOC Option External Power Supply Pin Diagram Notes Model 710 Pins 3 through 8 are not used Model 712 Pins 5 through 8 are not used The current loop option replaces the analog voltage output and must beinstalled by LUXTRON The user has control of both the scale factor uA degree and offset temperature the temperature at which the analog current is 4 mA When the instrument is in Standby mode the analog is set to 4 mA In Run mode analog current is offset by measured temperature For relative measurements this initial offset can be set to zero The analog offset sets the temperature that is equivalent to 4 mA No offset means the current is 4 mA when temperature is C or F E 4 Model 710 712 and 790 Fluoroptic Thermometer User Manual Figure 4 shows the formula for calculating the range of the current using the highest and lowest measured temperatures as input Table 4 lists the definitions for each variable mA SF T T 4 mA meas Figure E 4 Formula for Calculating the Current SF Scale factor in uA degree Measured temperature Ts Analog offset temperature Table E 4 Current Formula Variable Definitions
7. LUXTRON Model 710 712 and 790 Fluoroptic Thermometer User Manual Confidential Information The material contained herein consists of information that is the property of LUXTRON Corporation 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 LUXTRON Corporation prohibits the duplication of any portion of this manual ortheusethereof for any purpose other than the operation or maintenance of the equipmentdescribed in this manual without the express written permission of LUXTRON Corporation Copyright Copyright OLUXTRON Corporation 1998 2004 All rights reserved Trademarks Fluoroptic is a registered trademark and LUXTRON is a trademark of LUXTRON Corporation Hewlett Packard is a registered trademark of Hewlett Packard Company IBM and PC AT are registered trademarks and XT is a trademark of International Business Machines Corporation Microsoft MS MS DOS and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries The firmware of this product is MS DOS based This product also contains software licensed from Microsoft Corporation LUXTRON Corporation 3033 Scott Blvd Santa Clara CA95054 3316 Telephone 408 727 1600 FAX 408 727
8. gt gt Stylistic Conventions Used this Manual This manual uses the following conventions Buttons All buttons are represented in UPPER CASE BOLD FACE type Display and instrument error messages All display and instrument error messages are indented and shown in UPPER CASE MONOTYPE Operating modes Operating modes are shown in Normal type with the first letter capitalized for example Remote mode Menu names Menu names are shown in Normal type with the first letter capitalized for example Main menu unless a reference is made to select it see next bullet Menus parameters and variables All menus and parameters are shown in UPPER CASE MONOTYPE to match the display such as Select SETUP from the Main menu Variables are shown in italics toggle between C and F Notes Cautions and Warnings appear throughout the manual The format and contents are as follows Note Used when information is sufficiently important to require special attention Caution Used when information is sufficiently critical to avoid instrument damage Warning Used when information is critical to avoid personal injury Warning Used when information is critical to avoid personal injury when an electrical hazard is present Model 710 712 and 790 Fluoroptic Thermometer User Manual 2 0 Unpacking and Installing the Instrument This chapter describes how to unpack
9. Field 1 lt CR gt lt LF gt DC 1 xxx xx sc CR LF One Channel Instrument DC Field 1 Field 2 lt CR gt lt LF gt DC 1 5 2 xxx xx sc lt CR gt lt LF gt Two Channel Instrument DC Field 1 Field 2 Field 3 Field 4 lt CR gt lt LF gt DC 1 xxx xx sc 2 5 3 XXX XX SC 4 5 lt CR gt lt LF gt Four Channel Instrument Figure D 6 IEEE Measurement Output Message Format The temperature for each active probe is sent in the appropriate data field 1 to 4 If a probe is not selected the field is entirely omitted Each field except the last has a semicolon 3Bh at the end of it to separate the measurement results for each probe Figure D 7 shows the measurement result when only Probe 1 is active DC1 50 11 lt CR gt lt LF gt FigureD 7 IEEE Measurement Output Message Format with Only Probe 1 Active D 16 Model 710 712 and 790 Fluoroptic Thermometer User Manual Each data field consists of three subfields separated by commas 2Ch as shown in Figure D 8 Table D 12 describes each field Embedded spaces are ignored pn temp status CR LF Figure D 8 IEEE Measurement Output Message Data Fields Desert __ Two character probe number first character is space 20h followed by the probe number 1 2 3 or 4 as applicable Seven character field that contains the actual tem
10. Figures A 2 through A 5 provide an overall view of each instrument model ras 4 60 4 30 e 8 8 ai i i o L S 9 5 4 E In 5 4 E H 9 516 i E z 5 5 ji 3 e B 87 11 8 8 g 18 25 19 00 Figure A 2 Overall View Model 710 Available Only as Rack Mount Specifications A 5 4 F 4 60 Boc pe l 4 30 A 5 g eo wo 8 U L HHH I h T ERI E 8 b z OE JHH 5 no s
11. Because the temperature range is restricted by the 4 to 20 mA constraint use the 32 uA degree scale to cover the entire range of the instrument For better resolution use the highest possible scale factor Table E 5 lists the relationship between scale factor maximum temperature and resolution Scale Factor Temperature Range uA degree 160 default 320 800 TableE 5 AOC Relationship between Scale Factor Maximum Temperature and Resolution If the instrument detects an error during operation the analog current is set to 4 mA for the duration of the error See Chapter 5 Maintenance and Troubleshooting for more information Analog Output Options E 5 6 Model 710 712 and 790 Fluoroptic Thermometer User Manual Appendix F Warranty and Service This appendix documents the warranty and service information for the Model 710 712 and 790 Fluoroptic thermometers Limited Warranty LUXTRON Corporation warrants each LUXTRON instrument to be free from defects in material and workmanship under normal use and service for the period of one year from date of shipment This warranty extends only to the original purchaser It does not apply to fuses lamps or probes nor any products or parts that have been subject to misuse neglect accident or abnormal conditions of operation In the event of failure of the instrument covered by this warranty LUXTRON Corporation will repair and calibrate the instru
12. CHANGE DIGITAL OUTPUT Specifies temperature at which to transfer data to RS 232 or IEEE 488 port for use by a peripheral device such as a computer see Appendix C RS 232 Serial Output Port or Appendix D 488 Output Port Option Note Only one digital output may be installed in the system at any given time CHANGE DIGITAL PORT Specifies whether to use RS 232 or IEEE 488 port CHANGE BAUD RATE Specifies rate at which instrument transmits data To use the DATASAVE feature a Press NO to continue To change a digital output option a Press YES to display first menu selection The message CHANGE DIGITAL PORT appears Press YES The message SELECT PORT appears Press and or to toggle between RS232 and IEEE Press YES to save selection and continue The message CHANGE BAUD RATE appears IEEE 488 Output Press NEXT Proceed to Step 9h RS 232 Output Press YES The message RS 232 BAUD RATE appears Press or to scroll through available values 2400 4800 9600 and 19200 Press YES to save selection and continue Table 3 2 Setup Menu First Level Messages and Definitions continued Model 710 712 and 790 Fluoroptic Thermometer User Manual DIGITAL FORMAT Specifies full format outputs for channels of data to be compatible with earlier versions of instrument FULL All channels
13. Check and replace fuse as necessary see Figure 5 1 for fuse location Instrument uses a 250 V AC fuse 250 V rating Fuse time lag is 2 5 A rating T2 5A Fuse size is 5 x 20 mm 2 x 79 in Check MEASUREMENT UPDATE TIME parameter in Setup menu Decrease time value if necessary Check probe s to ensure connected and not broken cut or otherwise damaged Restore default Setup settings Increase saMPLES PER MEAS parameter in Setup menu Check cHANGE DIGITAL OUTPUT parameter in Setup menu to ensure correct digital port is selected If error persists restore default Setup settings and try again Check cHANGE ANALOG OUTPUT parameter in Setup menu to ensure scaling factor is not set overly high or low Use rEST ANALOG OUTPUT message to verify proper operation Connect a voltmeter to the analog output and check displayed voltage against voltmeter reading Table5 2 Troubleshooting Symptoms and Corrective Action 5 2 Model 710 712 and 790 Fluoroptic Thermometer User Manual Optional IEEE 488 Interface MODEL sene Serial Port Power Connector Flashlamp Module Fuse Location Analog Output Connector Function CPU Reset Button recessed I 3 Sensor 1 Sensor 1 Sensor 1 Sensor 1 Return Sensor 1 Return Sensor 1 Return Not Used Se
14. Figure 2 2 shows the front view of the rack mount installation of the instrument all models Figure 2 3 shows the rear view of the instrument An overall view of each model is provided in Appendix A Specifications LUXTRON 790 Fluoroptic Thermometer YES MENU PREV NEXT Figure 2 1 Front Panel Stand Alone Model 790 Unpacking and Installing the Instrument 2 3 0 LUXTRON 710 Fluoroptic Thermometer C YES MENU IPREV PROB a s C Z3 LUXTRON 712 Fluoroptic Thermometer YES MENU PREVNEXT E EM C LUXTRON 790 Fluoroptic Thermometer C YES MENU PREVNEXT E 1 LJ Figure 2 2 Front Panel Rack Mount All Models 2 4 Model 710 712 and 790 Fluoroptic Thermometer User Manual Optional IEEE 488 Interface MODEL seria Serial Port Power Connector Flashlamp Module Fuse Location Analog Output Connector Function CPU Reset Button recessed I 3 Sensor 1 Sensor 1 Sensor 1 Sensor 1 Return Sensor 1 Return Sensor 1 Return Not Used Sensor 2 Sensor 2 Not Used Sensor 2 Return Sensor 2 Return Not Used Not Used Sensor 3 Not Used Not Used Sensor 3 Return Not Used Not Used Sensor 4 Not Used Not Used Sensor
15. Serial Poll Measurement or calibration result is ready and waiting MEAS to be read by the controller Instrument is responding to a query by the controller and answer is ready to be read Measurement and a time date stamp are ready to be read by the controller The controller should perform two reads EAS and TIME a Measurement b Time date header Instrument has completed a reading and awaits instructions to transmit the measurement Table 0 5 Typical Serial Poll Status Responses Remote Instrument Programming Remote programming has two basic functions Programing system for measurement Querying existing configuration Remote Programming mode is available only during Standby mode Therefore the instrument must be placed in Standby prior to programming Figure D 2 shows the syntax for programming the system Figure D 3 shows the syntax for querying the existing configuration Tables D 6 and D 7 describe each of the fields for the programming and query command syntax respectively Embedded spaces in the commands are ignored Optional IEEE 488 Interface D 9 set up the system send lt ESC gt command parameters lt CR gt lt LF gt FigureD 2 Remote Programming Command String o command Two letter command see Table D 9 Table D 6 Remote Programming Command String Field Descriptions To query the system send lt ESC gt command lt CR gt lt LF gt
16. and currently selected value Press or to scroll through available rates 2400 4800 9600 and 19200 Default is 9600 Stop scrolling when desired rate appears Press YES to save selection Press MENU to return to Main menu SAMPLES MEASUREMENT and MEASUREMENT UPDATE TIME It is important to understand the relationship between the SAMPLES MEASUREMENT and MEASUREMENT UPDATE TIME parameters when setting up the RS 232 port SAMP LES MEASUREMENT sets the number of samples taken for each measurement default is 8 MEASUREMENT UPDATE TIME sets how often the measurement is updated or the time between measurements default is CONTINUOUS DATASAVE Feature Although this option is available for selection it is currently nonfunctional 2 Model 710 712 and 790 Fluoroptic Thermometer User Manual Hardware Configurations for the RS 232 Port To use the RS 232 port of the instrument use a shielded RS 232 cable that is wired straight through for example pin 1 to pin 1 pin 2 to pin 2 pin 3 to pin 3 and so forth It is recommended that a fully shielded RS 232 cable be used in electrically noisy environments Inside the instrument each data line on the RS 232 port is capacitively filtered to reduce electromagnetic interference EMI and radio frequency interference RFI noise susceptibility Caution compliance with the p
17. continue The message bay YEAR appears Press and or until current day appears Press YES to save selection and continue The message YEAR Specifies current year appears CURR ENT DATE Press and or to scroll through list of values until last one or two digits of current year appear Press YES to save selection and continue The message CURRENT DATE appears Displays date values entered in previous steps Press YES to display date as and provides the option of entered approving the specified date If the date is incorrect press PREV Repeat steps 12b 12h Otherwise press YES to save selection and continue Table3 2 Setup Menu First Level Messages and Definitions continued 3 12 Model 710 712 and 790 Fluoroptic Thermometer User Manual DISPLAY CURRENT TIME Displays current date and time on front panel of instrument RESTORE DEFAULTS Restores factory default settings or keeps and records the new values This is the final step in Setup mode To display current date and time on front panel display a Press YES to display time as well as previously entered date information To complete Setup mode and accept changed settings a Press NEXT Instrument returns control to Main menu To restore default settings a Press YES The message REINITIALIZE appears Press or to
18. lt CR gt lt LF gt lt ESC gt AS lt CR gt lt LF gt AS 200 lt CR gt lt LF gt TableC 14 Remote Setup Query Commands and Syntax RS 232 Serial Output Port C 15 C 16 Model 710 712 and 790 Fluoroptic Thermometer User Manual Appendix D Optional IEEE 488 Interface This appendix discusses the optional IEEE 488 interface as well as complete setup and diagnostics for this option The IEEE 488 option is used for communicating with other computers It can be used as an output port for logging measurements and or as an input port for remote setup or control Note The instrument may have an RS 232 port and IEEE 488 interface However only one may be active at any time IEEE 488 Overview In the early 1970s Hewlett Packard defined an interface called the HP Interface Bus This became an IEEE standard in 1975 with minor revisions added since and is now know as the IEEE 488 Interface Bus or General Purpose Interface Bus GPIB The electrical mechanical and functional requirements of the bus are defined in IEEE Standard 488 1 1987 Reaff 1994 IEEE Standard Digital Interface for Programmable Instrumentation The IEEE 488 standard pr oduct number SH11346 is available from the IEEE by contacting the IEEE Service Center by way of the following Mail 445 Hoes Lane PO Box 1331 Piscataway NJ 08855 Telephone 800 678 4333 908 981 0060 e Website http www ieee org booksto
19. 14h to return to Standby mode Send CTRL D 04h to disable Remote mode and return to the Main menu RS 232 Serial Output Port C 9 Once in Remote mode data from the instrument be controlled on a per character basis with the commands listed in Table C 8 Enable transmission CTRL Q Disable transmission CTRL S Buffer refresh and enable transmission CTRL F Table C 8 Remote Mode Control Commands for Instrument Control Note CTRL F flushes the buffer and starts transmissions with new data In contrast CTRL Q outputs the existing data in the buffer at the time it was disabled then continues with the new data Remote Instrument Calibration Remote calibration enables a host computer to be used to calibrate the instrument For a host system to execute the calibration sequence the program must follow the sequence outlined below To execute the calibration sequence from a host computer 1 Send CTRL T 14h to confirm the instrument is in Standby mode This assures the instrument is in Standby mode at the Main menu and not running If the instrument is in Standby mode it echoes instead of CTRL T 2 Use the PS remote setup command to select the probes to calibrate 3 Use the CT remote setup command to change the calibration temperature see Table C 12 4 Place probes to be calibrated in a stable temperature reference Send CTRL K OBh to start calibration sequence The calibration sequence is co
20. 4 Return Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground 1 2 3 4 5 6 7 8 9 Figure 2 3 Sample Back Panel All Models Testing the Instrument After installing the instrument power on and test it to ensure it is working properly To test the instrument 1 the instrument using the power switch on the front panel The display scrolls through the following single line messages in the order listed LUXTRON CORPORATION MODEL NUMBER C COPYRIGHT PART NUMBER FIRMWARE VERSION RUN CAL SETUP Unpacking and Installing the Instrument 2 5 Note Instrument warm up time is 15 minutes from a cold start or initial power on For minimum warm up time and maximum equipment life keep the system powered on at all times even when it is not in use The instrument is now ready to use as indicated by the blinking asterisk at the far right of the display The Main menu lists the following three modes of operation 2 RUN M CAL 2 Press YES to automatically begin taking temperature measurements 3 Press any button to stop taking measurements and return to Main menu Setup calibration operation and diagnostics are run from the Main menu as discussed in Chapter 3 Using the Instrument Select menu items by pressing the appropriate buttons below the front panel display or by using a computer connected to the ins
21. 50 90 F of calibration Over range of instrument Calibrated point 1 0 C 1 8 F RMS within 100 C 180 F of calibration point Temperature Range 199 9 to 449 9 C 327 8 to 841 8 F 8 samples 49 1 0 18 F RMS measurement See the section Precision More than or Repeatability 8 samples lt 0 1 C 0 18 F RMS measurement Repeatability Display 0 1 C 0 18 F Finest temperature division RS 232 0 01 C 0 02 F possible for some system Temperature components nesoluiion ae 0 01 0 02 F option Analog output value valid at default settings Analog Output 0 0244 0 44 FP 0244 0 0244 0 44 FP 0 04 F Response See the section as TableA 1 Basic Performance Specifications Specifications Output Ports Outputs Analog Voltage Option 10 V Analog Current Loop 4 to 20 mA Display 24 character LED display Sampling Rate 4 samples second max ERE t 48 W x 13H x 34Dm aos UD 19 Wx 5 25 H x 13 5 Din Stand alone is for Model 790 Dimensions only RF Shielded cabinet see 34 W x 13 H x 32 D m the section RF Shielding SIUE 13 5 W x 5 1 Hx 12 5 D in Storage 55 to 75 C temperature 67 to 167 F If instrument passes through dew point after storage at subfreezing temperatures ensure electronics are Relative 9596 maximum dry before power on Humidity noncondensing Front Panel
22. Calibration Temperature Enable Disable CAL Correction Once every 1 to 999 seconds Once every 1 to 999 minutes Once every 1 to 999 hours Continuous x is F FULL A ABBR or I IEEE xx is HD to enable time date stamps or NH to disable time date stamps 500 mV degree Value between 199 9 and 449 9 327 8 and 841 8 F C Celsius or F Fahrenheit Value between 199 9 and 449 9 C 327 8 and 841 8 F E enable CAL correction or D disable CAL correction TableC 12 Remote Setup Commands C 14 Model 710 712 and 790 Fluoroptic Thermometer User Manual Sample Remote Setup Commands The RS 232 port echoes each command it receives with a carriage return and a line feed Embedded spaces are ignored Table C 13 lists six sample setup commands Select Probe 1 only lt ESC gt PS 1 lt CR gt lt LF gt Set samples per measurement to 20 lt ESC gt SM 20 lt CR gt lt LF gt Set measurement update time to once per minute Set displayed units to Celsius Enable analog output on Channel 1 TableC 13 Remote Setup Sample Commands Sample Remote Query Commands Table C 14 lists six sample remote query commands and the corresponding instrument response If the setup parameters are established as listed in Table C 13 the responses are as follows embedded spaces are ignored lt ESC gt UN lt CR gt lt LF gt lt CR gt lt LF gt lt ESC gt AE lt CR gt lt LF gt AE 1
23. FigureD 3 Remote Programming Query String 0 Line feed Table 0 7 Remote Programming Query String Field Descriptions Lm D 10 Model 710 712 and 790 Fluoroptic Thermometer User Manual The instrument posts an SRQ when it has response to a query Perform serial poll and verify that instrument responds that is that the PROG bit is set in the serial poll status register The controller must then perform a read operation to obtain response Figure D 4 shows the response provided by the instrument to a query Table D 8 describes each field command parameters lt CR gt lt LF gt FigureD 4 Remote Programming Query Response Two letter command see Table D 9 String information associated with the command see Table D 9 TableD 8 Remote Programming Query Response Field Descriptions Table D 9 lists the remote programming commands and the required syntax For clarity the lt ESC gt character and the lt CR gt lt LF gt following the parameters are not shown Notes for Table D 9 The probe or channel values listed quantity of one two or four in Table D 9 directly correspond to the number of probes channels used by the instrument Remote Calibration automatically enables calibration correction Optional IEEE 488 Interface D 11 C Probe Selected Set Lower Temp Trip Limits Set Upper Temp Trip Limits Sample per
24. Measurement Measurement Update Time Digital Format Enable Analog Output Analog Output Scale Factor Analog Output Zero Offset Units Celsius or Fahrenheit Calibration Temperature Enable Disable CAL Correction LL XXXX X XXXX X XXXX X XXXX X HL XXXX X XXXX X XXXX X XXXX X H L 199 9 199 9 199 9 199 9 L449 9 449 9 449 9 449 9 AS ne B9 10 20 50 100 200 or 500 mV degree Value between 199 9 and 449 9 C 327 8 and 841 8 for active channels Value between 199 9 and 449 9 C 327 8 and 841 8 for active channels Once every 1 to 999 seconds every 1 to 999 seconds xis F FULL A ABBR or I IEEE xx is HD to enable time date stamps or NH to disable time date stamps Unique channel number Model 710 Model 712 Value between 199 9 and 449 9 C 327 8 and 841 8 F C Celsius or F Fahrenheit Value between 199 9 and 449 9 C 327 8 and 841 8 F E enable CAL correction or D disable CAL correction Table D 9 Remote Programming Commands D 12 Model 710 712 and 790 Fluoroptic Thermometer User Manual Syntax Default Value Value Definition xx is the day yy the year and zz the year for example 06 23 97 xx is the hour yy the minutes and Set Time TI xx yy 2 z is P PM or A AM for example 10 56 A TableD 9 Remote Programming Commands continued Sample
25. TableA 1 Basic Performance Specifications continued Environmentally Operating 10 to 60 Hardened temperature 50 to 140 F Instrument Warm Up Time The warm up time of the instrument is 15 minutes from cold start or initial power on Note For minimum warm up time and maximum instrument life keep the system powered on at all times even when not in use A 2 Model 710 712 and 790 Fluoroptic Thermometer User Manual Precision or Repeatability Root mean square RMS and Standard Deviation are equivalent terms that describe a statistical method for quantifying the spread of the distribution curve for measurement data The following briefly defines these terms relative to the specification of the instrument In practical terms 68 percent of all measurements fall within one standard deviation of the mean 95 percent of all measurements fall within two standard deviations of the mean Nearly 100 percent of all measurements fall within three standard deviations of the mean Figure A 1 illustrates the precision of the instrument in graph form Relative Frequency of Occurence of a Measurement or its Error gt 68 26 of results 95 46 of results gt 99 74 of results 36 26 0 u 6 26 36 Mean of Magnitudes Figure A 1 Measurement Data Distribution Specifications A 3 Response Time The response time of the instrument is restricted by the system flash rate
26. and reduces available values 0 20 50 100 temperature range When 200 and 500 reduced increases temperature range and Press YES to save selection reduces resolution and continue The message SET ANALOG OFFSET appears SET ANALOG OFFSET uH Specifies temperature ANALOG OFFSET appears at which to output 0 V Press and or to scroll through range of values 199 9 to 449 9 C e 327 8 to 841 8 F TEST ANALOG OUTPUT Press YES to save selection and continue The message Tests analog output EST ANALOG OUTPUT appears ess YES The message ROBE 1 2 3 4 appears Press button located below the probe channels to turn off probes not to be tested Press YES to begin test The message ANALOG OUTPUT 0 00 Vdc appears Press to increase or to decrease output voltage Press YES to save selection and continue Table3 2 Setup Menu First Level Messages and Definitions continued 3 10 Model 710 712 and 790 Fluoroptic Thermometer User Manual SET TIME DAY To set the time of day Establishes time clock to be used a by instrument CLOCK TYPE Specifies whether to use 24 hours day or 12 hour AM PM display HOUR Specifies hour of day MINUTES Specifies minutes corresponding to hour of day AM OR PM Specifies AM or PM if 12 hour AM PM display was selected TIM
27. e ee tlh tae 3 14 R n Mode a o ter ene dp ted 3 17 4 0 Theory of Operation i2 uana een ice Rr ed yen 4 1 Temperature Sensor 4 1 How Temperature Measurements are Calculated 4 3 5 0 Maintenance and Troubleshooting 5 1 EquipmentMaintenance 5 1 Probe and Connector Maintenance 5 1 Technicallnformation 5 1 Troubleshooting 5 2 Error and Informational Messages 1 5 4 InstrumentReinitialization 1 2 5 5 Flashlamp Replacement 1 1 0 5 6 Table of Contents iii Appendix Specifications Instrument Warm Up TIME 2 A 2 Precision or Repeatability A 3 Response Mo cto ef et eee a Mode celeb ane na Ee ed A4 RE Shielding tS dea e PESE Gide ayia d aed ane BONA Du RS 4 Overall VOW aes US UE RYE Na UE 5 Appendix B Instrument Probes
28. if the temperature reference instrument itself is NIST calibrated and the following conditions are met probes have not been disconnected from the instrument since being calibrated against a NIST traceable reference standard The instrument has not been recalibrated since the NIST traceable calibration Notes SEL probe cannot be callibrated in a temperature bath For maximum accuracy calibrate the instrument When operating the probe at temperatures greater than 8 C 46 F from the original calibration point If a probe is bent more sharply than 51 mm 2 radius If a probe is replaced with a new or different probe To select Calibration mode press PREV on the front panel of the instrument Figure 3 2 illustrates the Calibration mode menu tree Table 3 3 defines each CAL menu selection and describes how to change the parameters of each 3 14 Model 710 712 and 790 Fluoroptic Thermometer User Manual RUN CAL SETUP YES CAL CORRECTION IS m CAL CORRECTION IS ON CM PREV os SETUP Notes Press or to turn CAL CORRECTION off or on Follow appropriate branch of menu tree based on whether CAL CORRECTION is on or off INPUT REF TEMP 25 C YES MENU PREV NEXT 2 Use this b
29. in the error message the output does not include the temperature subfield The status subfield immediately follows the channel number see Figure D 10 DC 1 PE CR LF Figure 0 10 IEEE Digital Output Format Probe Error If there is no status to report the status subfield is not included in the output The next measurement immediately follows the temperature subfield see Figure D 11 DC 1 101 00 lt CR gt lt LF gt Figure D 11 IEEE Digital Output Format No Status to Report D 18 Model 710 712 and 790 Fluoroptic Thermometer User Manual FULL and ABBR Digital Output Message Formats When using the FULL or ABBR digital output formats all remote programming commands use the equal sign instead of a space between the command and parameters lt ESC gt MU 2S lt CR gt lt LF gt Figure 0 12 Remote Programming Command Format for FULL or ABBR Digital Output Formats For more information see the section FULL and ABBR Digital Output Message Formats in Appendix C RS 232 Serial Output Port Time Stamps An optional time and date string is available on the digital output This can be turned on or off from the front panel or over the digital port using the DF command When enabled a time date SRQ occurs once a minute or immediately after the next measurement update whichever is longer See the section Serial Poll Status Byte for additional information Figure D 13 shows a sam
30. of the system When used in the latter mode the system is controllable from a computer or terminal as it is from the front panel Note The instrument may physically have both an RS 232 port and an IEEE 488 interface However only one may be active at any time RS 232 Port Setup Using a computer to control the instrument provides the ability to automate the data acquisition process and allows totally remote operation of the instrument Setting up the instrument for computer control involves use of a complex command structure however once done it provides an exceedingly fast operating environment The following sections describe the following parameters as they relate to the RS 232 setup RS 232 BAUD RATE SAMPLES MEASUREMENT and MEASUREMENT UPDATE TIME DATASAVE FEATURE not available for use RS 232 Serial Output Port C 1 RS 232 Baud Rate The first setup parameter for the RS 232 port is the baud rate Baud rate is the number of bits transmitted per second over the serial port Values are 2400 4800 9600 or 19200 default is 9600 Set the baud rate to correspond to the baud rate of the peripheral device To change the baud rate 1 2 Press at Main menu to access Setup mode Repeatedly press NEXT until screen displays the message CHANGE DIGITAL OUTPUT Repeatedly press YES until screen displays the message CHANGE BAUD RATE Press YES to display the message RS 232 BAUD RATE
31. temperature of independent reference a Press and or to scroll through range of values until required temperature appears Press YES to save selection and continue Table3 3 Calibration Menu Display Messages and Definitions 3 16 Model 710 712 and 790 Fluoroptic Thermometer User Manual 5 proceed with calibration Confirms probe is in reference media a Ensure probe s is in reference and media temperature is stabilized media and media temperature is stabilized Allow one minute for probe to come to equilibrium at reference temperature Press YES to begin calibration Instrument displays status message Calibration process takes less during calibration than one minute If a probe fails calibration instrument displays error message and probe is automatically deselected When calibration is complete display returns to Main menu Table3 3 Calibration Menu Display Messages and Definitions continued Run Mode In Run mode the instrument displays the temperature reading from each of the connected probes after an appropriate number of samples are taken as specified in Setup mode The temperature data is also transmitted to the analog output and RS 232 port or to the analog output and optional IEEE 488 interface Use Run mode for day to day processes If SAMPLES Mi ONI EASUREMI ENT value is set overly high system d
32. the Setup mode menu tree Table 3 2 defines each Setup menu selection and describes how to change the parameters of each LONE HN Proceed to next first level menu selection without Press NEXT changing parameter values Save parameter changes and proceed to next Press NEXT first level menu Return to previous first level menu selection Press PREV without making parameter changes Display second level menu selection Press YES Enter new parameter value and proceed to Press YES next selection Save parameter changes and return to Main menu Press MENU Togolo Press button located directly under 99 parameter value Scroll up or down to select a parameter value Press or Hold down to increase P scrolling speed Table 3 1 Front Panel Button Actions Using the Instrument 3 1 SELECT PROBES PREV Ed SET SAMPLES PER MEAS SET MEAS UPDATE TIME DISPLAY BRIGHTNESS CHANGE TEMPERATURE UNITS yes NEXT AMPLES MEASUREMENT Eid NEN NEN CONTINUOUS Eug mud ee BRIGHTNESS 4 LU ES Dd ENS TEMPERATURE UNITS r3 GS Lua NENN CHANGE TEMP LIMITS
33. the instrument This equipment can be used in any location as long as the environmental requirements are met as listed in Appendix A Specifications Caution conductor power cord Ensure that you have an adequately This equipment is designed to be used with a grounded three N grounded power source before proceeding Unpacking and Installing the Instrument 2 1 To install the instrument If rack mounting the instrument remove the four plastic mounting feet and secure instrument in the rack using the four sets of screws washers and nuts Plug socket end of power cord into receptacle on back panel of instrument and the other end into grounded power outlet rated as follows e Input voltage 90 to 250 V e Input frequency 47 to 63 Hz Power on and test instrument per instructions in the section Testing the Instrument Remove black vinyl caps from front panel probe connectors caps are shipped on the instrument to prevent dust contamination Save the caps and place them on front panel probe connectors when instrument is not in use Unpack a probe and remove the red vinyl protective cap from a connector Note Do not uncoil the probe until instrument power on testing is complete Screw probe metal connector into a front panel probe connector 2 2 Model 710 712 and 790 Fluoroptic Thermometer User Manual Figure 2 1 shows the front view of the stand alone installation of the instrument Model 790 only
34. toggle to YES Press YES The message ARE YOU SURE appears Press or to toggle to YES Press YES Instrument restores default values and briefly displays the the message SETTINGS RESTORED at which time instrument returns control to Main menu Table3 2 Setup Menu First Level Messages and Definitions continued Using the Instrument 3 13 Calibration Mode The instrument may be calibrated after completing setup Calibration increases measurement accuracy and can be done using an independent temperature reference standard such as a constant temperature bath Use Calibration mode for initial setup or when the application changes and different types of probes or system devices are required Notes This calibration feature is normally off disabled If the probes have been changed and or the application is changing recalibration may be necessary For applications where an absolute accuracy of 2 C 3 6 F is sufficient it is not necessary to calibrate most probes The Micro Tip SMT probe is an exception Uncalibrated the instrument is accurate to 2 C Once calibrated the instrument provides an accuracy to 0 1 C 0 18 F at the calibration temperature and a precision repeatability of 0 1 C root mean square RMS at eight samples per measurement Once the instrument is calibrated accuracy can be traced through the National Institute of Science and Technology NIST
35. 1677 Email info luxtron com Website http www luxtron com Part Number 38 11490 01 Revision H March 2004 Table of Contents 1 0 Introduction Ge eee 1 1 System Overview uetus d UR RC 1 1 F Gallll6S c ows ees eU te eeu tes Ames t qot Tat eaten 1 1 d bie eres 1 2 a Ree e ER RO X 1 2 Nie MEET 1 2 PrODOS ent tee Ue eto Seta tenure de tog Metensis 1 2 Kc Em 1 3 Main Menu Menu Hierarchy 1 3 Default Setup Parameters 2 1 4 FHowto Usethis Manual 1 5 Stylistic Conventions Used inthis Manual 1 6 2 0 Unpacking and Installing the 2 1 Unpackingthe Instrument 1 2 1 Installing the Instrument 1 2 1 Testing the Instrument 2 5 Probe Use and Handling goitre uir Arg equ ae ae Mies aoe 2 6 3 0 Using the Instrument 3 1 Setup Mode RR Ead eae ee ee oda acted a ies 3 1 Calibration Mode 2 ima ek ach
36. 250 ms The response time of the system is probe limited Table A 2 lists the typical response time of the standard SFF immersion probes to a step change in temperature Probes Immersed in 6396 of Final Temperature 9926 of Final Temperature TableA 2 Typical Response Times of the SFF Immersion Probes Some probes respond more rapidly The SEL probe for example reaches equilibrium in less than 100 ms when touched to a heated or cooled surface RF Shielding The instrument meets FCC Class A requirements for emission of electromagnetic radiation by a computer system Caution Use a shielded RS 232 cable with this instrument to ensure compliance with the pertinent RF emission limits governing this instrument Note This instrument has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the instrument is operated in a commercial environment This instrument generates uses and can radiate radio frequency energy and if not installed and used in accordance with the user manual may cause harmful interference to radio communications Operation of this instrument in a residential area is likely to cause harmful interference in which case users must correct the interference at their own expense 4 Model 710 712 and 790 Fluoroptic Thermometer User Manual Overall View
37. 4 0 Theory of Operation This chapter discusses the temperature sensor and how the instrument calculates temperature measurements Temperature Sensor The temperature sensor is the key element in the system It is mounted on the end of the probe The sensor consists of a small amount of a temperature sensitive phosphor which is manganese activated magnesium fluorogermanate When excited with blue violet light the phosphor exhibits a deep red fluorescence Figure 4 1 illustrates the temperature spectrum of the phosphor along with the transmission of the filters used to isolate the exciting and fluorescent radiation The spectrum is measured at room temperature The dashed lines in the figure show the passbands of source and detector filters 1 0 4 Excitation Region Emission Region UN F1 Transmission 8 H ge E Source Filter 2 E Magnesium 5 S d 2 Fluorogermanate 6 Emission Spectrum E F 5 Magnesium M F2 Transmission Fluoroger MES Detector Filter c 4 manate Excitation 1 Spectrum 200 300 400 500 600 700 800 Wavelength nm Figure4 1 Temperature Spectrum of Magnesium Fluorogermanate The filtered xenon flashlamp in the main unit provides the pulse of blue violet light which excites the phosphor to fluoresce Figure 4 2 illustrates a general diagram of the optics of the instrument Theory of Operations
38. 4 1 Connector Power Flash Lamp Supply Beam Front Splitter Panel Figure 4 2 Cross Sectional View of the Optics After the excitation pulse ends the intensity of fluorescent radiation decays The fluorescent decay time is measured and then correlated with the phosphor temperature by comparing the measured decay time with a digital look up table as illustrated in Figure 4 3 Figure 4 4 schematically illustrates the method for measuring the decay time of the phosphor sensor Individual Data Points are used to perform a mathematical curve fit to calculate 7 The measured value of time is then compared with the values stored in the calibration table and the corresponding temperature is displayed The temperature data is transmitted to the front panel display the analog output and the digital output RS 232 port or optional IEEE 488 interface 6 5 4 Hn 3 2 1 0 200 100 0 200 300 400 500 Temperature C Figure4 3 Time Temperature Plot of Magnesium Fluorogermanate Model 710 712 and 790 Fluoroptic Thermometer User Manual Exciting Light Pulse Data Points Intensity OW e OO 9 Time Figure4 4 Plot Representation of Method for Extracting Fluorescent Decay Time How Temperature Measurements are Calculated The instrument calculates temperatures based on the SET SAMPLES PER MEAS and SET MEAS UPDATE TIME Setup param
39. ABBR Only currently selected channels IEEE Output to GPIB IEEE 488 standards ENABLE TIMESTAMPS Outputs time and date stamp to output port CHANGE IEEE ADDRESS Specifies IEEE address to be used by device using this port The message DIGITAL FORMAT appears Press or to toggle between FULL ABBR and IEEE Press YES to save selection and continue The message F ESTAMPS appears Press or to toggle between NO and YES Press YES to save selection and continue The message CHANGE IEEE ADDRESS appears RS 232 Output Press NEXT Proceed to Step 10 IEEE 488 Output Press YES The message IEEE DEVICE ADDRESS appears Press or to scroll through the list of values between 0 and 30 Press YES to save selection and continue Table3 2 Setup Menu First Level Messages and Definitions continued Usingthe Instrument 3 9 CHANGE ANALOG OUTPUT To change an analog output option Improves resolution by increasing a Press YES to display first menu scale factor Also reduces temperature selection The message range because range is restricted by CHANGE SCALING FACTOR appears output limit of 5 V 1 Press YES The message CHANGE SCALING FACTOR mV PER DEGREE appears When increased improves Press to scroll through resolution
40. ANALOG OUTPUT MENU NEXT Note CHANGE SCALING FACTOR 1 Displayed values directly correspond to EI number of active channels on instrument For example 4 displayed values means that all four channels are active The channels can betoggled on and off by pressing the vES ud button directly below the channel number SET ANALOG OFFSET mV PER DEGREE 100 Legend YES EE NEXT Active buttons Inactive buttons Return to the Main Menu Return to the previous menu level Toggle channel on or off Numerical digit 0 9 ANALOG OFFSET 0 0 C EN Ge pus NEGO TEST ANALOG OUTPUT Y ANALOG OUTPUT 0 00 Vdc ES Dus Figure 3 1 Setup Mode Menu Tree continued Using the Instrument SET TIME OF DAY EHE CLOCK 24 HR HOUR XX LEE Eu NEN MINUTES XX Ka E 789 IF CLOCK TYPE 12 AM PM AM OR PM AM pd HEIN TIME OK va NEXT SET DATE nu m MONTH XX Ge DAY XX
41. Active buttons Izd Inactive buttons LI Return to the Main Menu YEAR XX Return to the previous menu level Toggle channel or off ud NEN X Numerical digit 0 9 CURRENT DATE XX XX XX Iu DISPLAY CURRENT TIME XX XX XX pm NEXT Vv Figure 3 1 Setup Mode Menu Tree continued 3 4 Model 710 712 and 790 Fluoroptic Thermometer User Manual RESTORE DEFAULTS EHE LIT Ged E REINITIALIZE YES LII ee NECHH ARE YOU SURE HT Ge Eu RUN CAL SETUP ITE MENU NEXT 8 Note Active buttons Inactive buttons Return to the Main Menu Return to the previous menu level NE Toggle channel on or off X Numerical digit 0 9 2 Default is NO Press to toggle to YES Figure 3 1 Setup Mode Menu Tree continued To setup the instrument 1 RUN CAL SETUP a Press at Main menu SEL ECT PROBES To specify where probes are connected to the front panel Enables or disables probes Disabled probes indicated by OFF a Press YES The message PROBE 1 2 3 4 appears Note Displayed values directly correspond 2 to number of active channels on instrument Press button below each probe
42. E OK Displays time values entered in previous steps and provides option of approving specified time Press YES to display first menu selection The message CLOCK TYPE appears Press or to select 24 HR or 12 HR Press YES to save selection and continue The message HouR appears Press and or until current hour of day appears Press YES to save selection and continue The message MINUTES appears Press or until minutes corresponding to current hour of day appear Press YES to save selection and continue 12 HR Only If selected in Step 11b the message AM PM appears Press or to select AM or PM Press YES to save selection and continue The message TIME appears Press YES to display time as entered for example 2 30 for 12 HR format or 14 30 for 24 HR format If the time is incorrect press PREV Repeat steps 11b 1 1i Otherwise press YES to save selection and continue Table3 2 Setup Menu First Level Messages and Definitions continued Usingthe Instrument 3 11 SET DATE To set the date Establishes date to be used a Press YES to display first menu by instrument MONTH selection The message appears Press and or to scroll through Specifies current month list of values until current month DAY appears Press YES to save selection and Specifies current day
43. E S m NEE T 2 li jj z eo f p E Figure A 3 Overall View Model 712 Available Only as Rack Mount 6 Model 710 712 and 790 Fluoroptic Thermometer User Manual 21 4 60 iB pese ue 4 30 12 30 14 20 1 1 4 ET 2 25 5 25 4 IHi LUXTRON 790 Fluoroptic Thermometer Jud E i e B Rr JMO k 5 MENI PREV NEXT J 18 25 19 00 Figure A 4 Overall View Model 790 Rack Mount Specifications A 7 15 60 LUXTRON 790 Fluoroptic Thermometer YES MENU PREV NEXT Figure A 5 Overall View Model 790 Stand Alone A 8 Model 710 712 and 790 Fluoroptic Thermometer User Manual Appendix B Instrument Probes This appendix discusses how to use and care for probes supplied with the Fluoroptic thermometers Overview The instrument
44. Note Y 1 Displayed values directly correspond to T LOW LIMIT number of active channels on instrument For example 4 displayed values means that all four channels are active The channels can betoggled on and off by pressing the button directly below the channel number LOW LIMIT 199 9 C MENU Ce Legend Active buttons Inactive buttons LET Return to the Main Menu SET HIGH LIMIT Lum Return to the previous menu level Toggle channel on or off X Numerical digit 0 9 HIGH LIMIT 449 9 C ENABLE DATASAVE FEAT PNE TE E DATASAVE FEATURE OFF yes Bee CHANGE DIGITAL OUTPUT CHANGE DIGITAL PORT rum Ge Y SELECT PORT RS232 LZ 0538 Figure3 1 Mode Menu Tree Model 710 712 and 790 Fluoroptic Thermometer User Manual CHANGE BAUD RATE EE EET EA EE RS 232 BAUD RATE 9600 ELE DIGITAL FORMAT En FULL ma ENABLE TIME STAMPS NO Dd CHANGE IEEE ADDRESS EG D IEEE DEVICE ADDRESS L NU CHANGE
45. Remote Programming Commands The IEEE 488 port echoes each command it receives with a carriage return and a line feed Embedded spaces are ignored Table D 10 shows six sample programming commands Bm qmm Select Probe 1 only lt 5 gt 5 1 lt CR gt lt LF gt Set samples per measurement to 20 lt 5 gt 5 20 lt CR gt lt LF gt Set measurement update time to once per minute Sra lt ESC gt MU 1M lt CR gt lt LF gt Set displayed units to Celsius lt ESC gt UN C lt CR gt lt LF gt Enable analog output on Channel 1 lt ESC gt AE 1 lt CR gt lt LF gt Set analog output scale factor to 200 mV degrees lt 5 gt 5 200 lt CR gt lt LF gt TableD 10 Remote Programming Sample Commands Optional IEEE 488 Interface D 13 Sample Remote Query Commands Table D 11 shows sample remote query commands The instrument posts an SRQ when it receives a response to a query Perform a serial poll and verify the instrument received a response that is the PROG bit is set in the serial poll status register The controller must then perform a read operation to obtain the response If the setup parameters are established as illustrated in Table D 10 the responses are as follows embedded spaces are ignored lt ESC gt UN lt CR gt lt LF gt UN C lt CR gt lt LF gt lt ESC gt AE lt CR gt lt LF gt AE 1 lt CR gt lt LF gt lt ESC gt AS lt CR gt lt LF gt AS 200 lt CR gt lt LF gt TableD 11 Remote Progr
46. a single strand of all silica or plastic clad silica PCS fiber These fibers exhibit varying degrees of flexibility based on probe materials and thickness Fibers may be damaged or broken if sharply bent The majority of probes are cabled with Kevlar fiber which significantly strengthens them Bending uncabled probes to a radius of less than one inch is not recommended All silica fiber probes are stiffer and more susceptible to signal losses caused by bending than other fibers ProbeTemperature Range Using a probe outside its intended temperature range or chemical environments may shorten its life Probe upper temperature limit is restricted by the materials used in the jacket and cladding Cladding of the PCS fiber oxidizes and deteriorates if exposed to temperatures above 200 392 F for an extended period The perfluoroalkoxy PFA jacket melts at 300 C 572 F The lower limit of operation of each probe type is set primarily by the optical transmission of the fiber used Only all silica fibers used in some probes have acceptable transmission at very low temperatures Caring for Probe When Not in Use Each probe is supplied with a cap over the connector Replacing this cap when the probe is not in use prevents dirt from accumulating on the open fiber end A dirty connector reduces transmission and performance of the probe If the polished fiber end in the center of the connector requires cleaning wipe it with a cot
47. alization All probes are deselected During probe selection process all probes may have inadvertently been turned off Select one or more probes No errors occurred during calibration and correct temperature offsets are now added to displayed temperature Displayed temperature is now correctly calibrated High Limit and Low Limit Appears only over digital output port RS 232 port or optional IEEE 488 interface when temperature measurement does not fall within HIGH or Low LIMIT specified in Setup mode Does not indicate problem with instrument but rather with values specified in Setup mode under CHANGE TEMP LIMITS Table5 4 System Messages parameter Correct value specified for HIGH and or row LIMIT Reinitialize the instrument if the screen appears to be frozen possibly because a long period is specified for the UPDATI E TIME parameter or to restore the factory default setup parameter values of the instrument see Table 1 1 Default Setup Parameters in Chapter 1 Introduction To reinitialize instrument and restore factory default settings ae ce ome Press YES Press NEXT until screen displays the message RESTORE Press at Main menu to access Setup mode EFAULTS Press YES to display the message REINITIALIZE Press or to toggle to YES Press YES to display the message ARE YOU SURE Press or to toggle to YES Instrument restor
48. amming Query Commands and Syntax Digital Output Formats The instrument supports three different digital output formats IEEE FULL and ABBR The format used is a matter of preference The following discusses digital output formats IEEE Digital Output Format Recommended data formats are presented in the IEEE 488 1 1987 standard IEEE Recommended Practice for Code and Format Conventions To order a copy of this standard product number SH15446 see the section 488 Overview for information on contacting the IEEE Model 710 712 and 790 Fluoroptic Thermometer User Manual Figure D 5 shows the IEEE digital output format used by the instrument DC 1 50 11 lt CR gt lt LF gt One Channel Instrument DC 1 50 11 2 300 22 lt CR gt lt LF gt Two Channel Instrument DC 1 50 11 2 300 22 3 125 00 4 200 00 lt CR gt lt LF gt Four Channel Instrument Figure 0 5 IEEE Digital Output Format The messages in Figure D 5 are shown exactly as they appear on a monitor or printer A carriage return and line feed CR LF are normally transmitted at the end of each line All measurement output messages consist of a three character header followed by a carriage return and line feed lt CR gt lt LF gt see Figure D 6 DC for Degrees Celsius or DF for Degrees Fahrenheit e One space 20h One to four data fields of up to 17 characters each Optional IEEE 488 Interface D 15 DC
49. andby mode it echoes 2 instead of CTRL T 2 Send CTRL R 12h to enable Operate mode This causes the instrument to run continuously and take temperature readings at the Measurement Update rate selected in the Setup menu 3 Wait for an SRQ from the instrument see the section Serial Poll Status Byte Do a serial poll and verify the instrument has a measurement ready MEAS bit set in the serial poll status register 4 Wait for the controller to read data from the instrument before overwriting data with the next measurement 5 Send CTRL T 14h listen command to stop the instrument and return to Standby mode To take measurements one at a time 1 Send CTRL T 14h to confirm instrument is in Standby mode 2 Send CTRL E 05h to enable Remote mode and lock out front panel buttons The only way to control the instrument at this point is through the digital port 3 Send CTRL R 12h to enable Operate mode This causes the instrument to run continuously and take temperature readings at the Measurement Update rate selected in the Setup menu 4 Send CTRL I 09h to initiate temperature reading This causes the instrument to flash until it achieves the specified number of samples per measurement The SAMPLES MEASUREMENT parameter can be changed in the Setup menu 5 Wait for an SRQ from the instrument Do a serial poll and verify instrument is ready When the RDY bit is set the instrument
50. ap when the probe is not in use prevents dirt from accumulating on the open fiber end Dirty fibers reduce transmission quality and performance If the polished fiber end in the center of the connector is dirty wipe it with a cotton swab moistened with spectrograde isopropyl alcohol or methanol For more information including sterilization procedures see Appendix B Instrument Probes Technical Information LUXTRON Corporation makes available upon request circuit diagrams component parts lists descriptions and calibration instructions to assist the user s technical personnel to repair those parts of the equipment that LUXTRON designates as repairable Information for contacting LUXTRON is provided in Appendix F Warranty and Service Maintenance and Troubleshooting 5 1 Troubleshooting Table 5 2 lists troubleshooting symptoms and the corrective action required to resolve them Additional information is provided in the sections System Messages and Status Messages Instrument display is blank Information not updated on display Unstable readings Communication errors No analog output as indicated by lack of activity on analog output device Corrective Action Check front panel power switch to ensure power is on Ensure power cord is securely plugged into instrument and a grounded wall outlet Ensure wall outlet works by plugging something else into it Power off instrument then unplug it
51. assemble and test the instrument Unpacking the Instrument When the instrument is received inspect the container in which it is packaged prior to opening to ensure there is no obvious damage which may have occurred during shipping If you have reason to suspect that it may have been damaged in shipping you must immediately file a claim with the carrier before contacting LUXTRON Open the shipping container and carefully remove the instrument from its packaging material at which time you should assemble and test it Each system component should be checked against the enclosed packing list and inspected for signs of visible damage The standard instrument is shipped with the following items e One Fluoroptic Thermometer instrument One user manual e One grounded three conductor power cord e Various Fluoroptic temperature probes and other supply items as ordered One shielded RS 232 cable Contact the LUXTRON Customer Service Department immediately if there is any visible damage to the instrument or probes or if any items are missing If everything is in order save the packing material for possible future use In the event of a later service question see Appendix F Warranty and Service Installing the Instrument The rack mount version of this equipment is designed to be mounted in a standard 19 inch equipment rack Note that the four plastic mounting feet can be removed without loosening or removing any hardware inside
52. ayed temperature readings a Press YES The message UPDATE TIME appears Press YES to select CONTINUOUS Press and or to scroll through the number of seconds minutes or hours Press YES to save selection and continue To increase or decrease the brightness of the front panel display a Press YES The message BRIGHTNESS appears Press and or to scroll through the brightness levels less bright 7 most bright Press YES to save selection and continue Table3 2 Setup Menu First Level Messages and Definitions continued 3 6 Model 710 712 and 790 Fluoroptic Thermometer User Manual CHANGE TEMPERATURE UNITS Specifies whether to display temperature data in Celcius C or Fahrenheit F CHANGE TEMP LIMITS Enables instrument to be used as a controller in a closed loop temperature control system Use to set probe upper and lower temperature limit trip points When limit is exceeded display flashes and an alarm is sent to the digital output the RS 232 port or optional IEEE 488 interface analog output and front panel Notes Only one low and high limit can be assigned to selected channels Therefore if only Channel 2 is selected and low and high limits such as 100 and 300 C are assigned and saved then try to set different low and high limits for another channel the limits specified for Channel 2 are changed to ma
53. channel to turn on off associated probe Press YES to save selection and continue Table3 2 Setup MenuFirst Level Messages and Definitions Usingthe Instrument 3 5 SET SAMPLES PER MEAS Specifies number of samples or data acquisitions to be taken before calculating a measurement Increasing this number improves accuracy of the reading because more samples are averaged together to obtain a measurement See the section How Temperature Measurements are Calculated in Chapter 4 Theory of Operation Note For best results use maximum number of samples per measurement for the time available SET MEAS UPDATE TIME Specifies frequency at which to update displayed temperature readings Time can be set from continuous every 1 4 second to once every 999 hours See the section How Temperature Measurements are Calculated in Chapter 4 Theory of Operation Note Instrument uses a rolling or boxcar average when calculating measurements DISPLAY BRIGHTNESS Increases or decreases brightness level of front panel display for use in dimly lit environments To specify the number of samples or data acquisitions per measurement a Press YES The message SAMPLES MEASUREMENT appears Press and or to enter number between and 999 Press YES to save selection and continue To set the time between measurements or displ
54. er commands Table C 7 lists the Remote mode control commands C 8 Model 710 712 and 790 Fluoroptic Thermometer User Manual Remote enable CTRL E Remote disable CTRL D Initiate reading CTRL I Table C 7 Remote Mode Control Commands While the instrument is in Remote Run mode the Initiate Reading command starts a measurement cycle and disables the transmission of digital output For example to take a single measurement using the remote enable command follow the sequence described below To take a single measurement using the remote enable command 1 Send CTRL T 14h to confirm instrument is in Standby mode This assures the instrument is in Standby mode at the Main menu and not running If the instrument is in Standby mode it echoes 2 instead of CTRL T Send CTRL E 05h to enable Remote mode This places the instrument in Remote mode and locks out the front panel buttons The only way to control the instrument at this point is through the serial port Send CTRL R 12h to enable Remote Run mode Instrument is now ready to take measurements Send CTRL I 09h to initiate reading This starts one measurement cycle stores the information in the buffer and generates a CTRL S 13h to disable transmission of digital output Send CTRL Q 11h to enable output to the RS 232 port This sends the temperature information currently stored in the buffer Repeat steps 4 and 5 as required Send CTRL T
55. ertinent RF emission limits governing this instrument T Use the shielded RS 232 cable provided with this instrument to ensure The RS 232 port of the instrument is configured as data communications equipment DCE Table C 1 describes the active pins of the RS 232 port 3 n Data Terminal Ready 8 and 20 Data Set Ready Table C 1 RS 232 Port Active Pins RS 232 Serial Output Port C 3 Character Bits Characters are composed of 10 bits per character The bit pattern is standard and configured as follows One start bit Eight data bits in ASCII character format with the eighth bit set to logic 1 e stop bit FULL and ABBR Digital Output Message Formats The output message has a preconfigured format Figure C 1 shows the FULL output message format for each instrument type 1 50 11 C lt CR gt lt LF gt One Channel Instrument 1 50 11 C 2 300 22 C lt CR gt lt LF gt Two Channel Instrument 1 50 11 C 2 300 22 C 3 125 00 C 4 200 00 C lt CR gt lt LF gt Four Channel Instrument FigureC 1 Output Message Format FULL The messages in Figure C 1 are shown exactly as they appear on a monitor display or printer A carriage return and line feed CR lt LF gt are normally transmitted at the end of each line FULL is the default format for Model 790 Model 710 712 and 790 Fluoroptic Thermometer User Manual In the abbreviated ABBR format only the channels selected are transmi
56. es its default values and briefly displays the message ETTINGS ESTORI ED followed by the Main menu Maintenance and Troubleshooting 5 5 Flashlamp Replacement Although the flashlamp is designed to last one or more years in normal use it may eventually need to be replaced You can extend the life of the flashlamp by increasing the MEASUREMENT UPDATE TIME Setup parameter as described in Figure 4 5 Example of Slow Temperature Measurement in Chapter 4 Theory of Operation The flashlamp bulb requires replacement when Bulb does not flash Bulb flashes erratically e Connector does not emit a visible blue violet light while Run mode check by disconnecting a probe and look straight into the instrument connector Caution Flashlamp bulb replacement requires realignment of the flashlamp assembly to optimize the signal level followed by instrument calibration Return the unit to LUXTRON for flashlamp bulb replacement 5 6 Model 710 712 and 790 Fluoroptic Thermometer User Manual Appendix Specifications This appendix defines the specifications for the accuracy precision and performance of the instrument Table A 1 lists the basic performance specifications Supplemental information provided in sections to follow Uncalibrated 32 0 C 43 6 F 0 1 C 0 18 F RMS at point of calibration 0 5 C 0 9 F RMS within Accuracy
57. etely automatic and returns to Standby mode when complete The instrument posts an SRQ when calibration is complete Perform a serial poll and verify the instrument has a measurement the MEAS bit is set in the serial poll status register The controller must then perform a read operation obtain calibration results If you need to abort the calibration sequence send CTRL A 01h during the sequence After calibration one of the following codes is sent as part of the status subfield for each probe being calibrated CU means unstable The temperature readings were unstable during the calibration period and prevented the instrument from calibrating When this error occurs ensure the temperature reference is not drifting and recalibrate as necessary See the section Calibration Mode in Chapter 3 Using the Instrument for calibration instructions CC means that calibration completed successfully without any error The instrument is ready for use Model 710 712 and 790 Fluoroptic Thermometer User Manual Figure D 1 shows typical calibration result string DC 1 25 00 CU lt CR gt lt LF gt One Channel Instrument DC 1 25 00 0 2 25 00 CC lt CR gt lt LF gt Two Channel Instrument DC 1 25 00 CU 2 25 00 CC 3 25 00 CC 4 25 00 CC lt CR gt lt LF gt Four Channel Instrument FigureD 1 Remote Calibration Result String The strings in Figure D 1 show the calibration temperature
58. eters Figures 4 5 through 4 7 illustrate three examples of temperature measurement Slow Temperature Measurement Parameter Values SAMPLES MEASUREMENT 20 MEASUREMENT UPDATE TIME 15 Description The flashlamp which flashes at a rate of 4 flashes per second takes 5 seconds to gather the 20 samples required for a measurement 5 sec x 4 flashes sec 20 samples Increasing the measurement update time increases the life of the flashlamp bulb After taking the samples the flashlamp is inactive for 14 55 minutes until the next measurement period 15 min 5 sec 14 55 minutes One measurement of 20 samples 5 5 seconds 14 55 min c 15 minutes Measurement Update Time Figure 4 5 Example of Slow Temperature Measurement Theory of Operations 4 3 Figure 4 6 Temperature Measurement Using the Default Setup Values Parameter Values SAMPLES MEASUREMENT 8 MEASUREMENT UPDATE TIME CONTINUOUS Description The flashlamp which flashes at a rate of 4 flashes per second takes 2 seconds to gather the 8 samples required for a measurement 2 sec x 4 flashes sec 8 samples Because the measurement update time is continuous the second measurement begins with the second sample as shown below The instrument updates four times per second because it uses a rolling or boxcar average 4 Meas 1
59. f the following components main unit which contains the optical analog and digital electronics of the instrument and a flashlamp e probes each consisting of a fiber optic cable with a temperature sensor at one end and a connector at the other end system firmware which is programmed into the main unit and uses a DOS based operating system Temperature data is collected when the sensor attached to the probe is activated by a burst of light from the flashlamp which is mounted inside the instrument The sensor then sends back an optical signal which is processed by the analog and digital electronics of the instrument to determine temperature Temperature data is sent to the front panel display the analog outputs and the digital output port RS 232 port or optional IEEE 488 interface Main Unit The electronics and flashlamp are in the main unit of the instrument The electronics of the main unit include a CPU board for computation and a system board for data storage and control The display panel of the main unit can display system status messages and temperature data using up to 24 alphanumeric characters Probes The instrument is designed to function with a wide variety of probes designed and produced by LUXTRON Corporation Each probe consists of a fiber optic cable with a connector at one end and temperature sensor mounted at the other end Contact the LUXTRON Sales Department for more informat
60. has acquired a measurement and is waiting for transmit instructions 6 Send CTRL Q 11h talk command to enable output then wait for an SRQ from the instrument Perform a serial poll and verify that the instrument has a measurement MEAS bit set in the serial poll status register 7 Wait for the controller to read the measurement Repeat steps 4 through 7 as required Subsequent CTRL I submissions cause the instrument to start another measurement 8 When finished return instrument to Standby mode by sending CTRL T 14h followed by CTRL D 04h remote disable command Optional IEEE 488 Interface D 5 Remote Instrument Calibration A host controller can calibrate the instrument by using the Remote calibration feature For a host system to execute the calibration sequence the program must follow the sequence outlined below To execute the calibration sequence from a host computer 1 Send CTRL T 14h to confirm instrument is in Standby mode This assures the instrument is in Standby mode at the Main menu and not running If the instrument is in Standby mode it echoes instead of CTRL T Use the remote programming commands PS and CT to select the probes and set calibration temperature see Table D 9 Put the probes in a temperature reference such as a water bath then bring probes to equilibrium Send CTRL K OBh to start the calibration sequence Calibration takes less than a minute is compl
61. ion Model 710 712 and 790 Fluoroptic Thermometer User Manual Firmware The instrument is set up operated and maintained using its built in menu driven firmware It can be controlled locally or remotely Locally from the front of the instrument The front panel of the instrument front panel has a single line display of 24 characters and a set of six keys for running the firmware e Remotely from the RS 232 or IEEE 488 interface on the back of the instrument The instrument may be set up and controlled by an external computer or modem Main Menu and Menu Hierarchy The Main menu provides access to the three major modes RUN CAL and SETUP Press the YES PREV or minus buttons to select RUN CAL Or SETUP respectively see Figure 1 2 RUN CAL SETUP MENU NEXT 8 Figure 1 2 Main Menu The Calibration and Setup menus are organized in hierarchical form First level menu selections These selections are available only in Calibration and Setup modes In Calibration mode see the section Calibration Mode they indicate a procedure In Setup mode the selections describe an instrument parameter or function that may be accessed followed by a question mark However the question mark is not included when the parameter or function is already 24 characters in length such as the CHANGE TEMPERATURE UNITS parameter Second level menu
62. is designed to function with a wide variety of probes designed and produced by LUXTRON Corporation Each probe consists of a fiber optic cable with a connector at one end and temperature sensor mounted at the other end Contact the LUXTRON Sales Department for more information The instrument uses both immersion and surface measurement industrial probes depending on the application Note Immersion probes may be used to measure surface temperatures but there is an unavoidable offset For more information see the section Using Immersion Probes for Surface Measurement Using Immersion Probes for Surface Measurement Immersion probes may be used to measure surface temperatures however there is an unavoidable offset Typical offsets are as follows depending on the probe e 5to 7 C at 100 C 9 to 12 6 F at 212 F e 10 to 15 C at 200 18 to 27 F at 392 F For vacuum measurements these offsets are roughly doubled For best results when measuring surface temperatures with these immersion probes make contact with the side of the probe tip Instrument Probes B 1 Industrial Probe Use and Handling Fiber optic probes last indefinitely if handled properly The following sections provide guidelines for using the probes Caution Use and care for the probes as outlined in this appendix to avoid causing damage to the probe and or to the instrument Probe Flexibility Each probe is made from
63. isplays the message E MOMENT until it takes the required number of samples per measurement small blinking asterisk provides a visual indication that it is functioning normally If an error message appears see the section Error and Informational Messages in Chapter 5 Maintenance and Troubleshooting for further instructions To select Run mode using current setup parameters and calibration settings Press YES on front panel of instrument The system briefly displays the unit of measure or F then automatically begins acquiring data and displaying temperature values To exit Run mode Press any button on the front panel Usingthe Instrument 3 17 Figure 3 3 illustrates the Run mode menu tree MENU next BE yo E Eug m yo venu wexr EE Notes Temperature units are displayed briefly Press any button to return to Main menu The message Moment displays until required number of samples per measurement are achieved 2 Press any button to return to Main menu 9i Displayed values directly correspond to number of active channels on instrument For example four displayed values mean that all four channels are active Legend EN Active buttons Inactive buttons Figure 3 3 Run Mode Menu Tree 3 18 Model 710 712 and 790 Fluoroptic Thermometer User Manual
64. lt LF gt FigureC 5 Remote Setup Query System Status Response 0 Two letter command see Table 12 Spaces on each side of equal sign String information associated with command see Table C 12 parameters Dh 20h gt TableC 11 Remote Setup Query System Status Response EN Table C 12 lists the remote setup commands and the required syntax For clarity the lt ESC gt character and the CR following the parameters are not shown Notes for Table C 12 The probe or channel values listed quantity of one two or four in Table C 12 directly correspond to the number of active channels on the instrument Remote calibration automatically enables calibration correction RS 232 Serial Output Port C 13 Probe Selected Set Lower Temp LL XXXX X XXXX X L 199 9 199 9 Trip Limits XXXX X XXXX X 199 9 199 9 Set Upper Temp HL xxxx x xxxx x HL 449 9 449 9 Trip Limits XXXX X 449 9 449 9 Value between 199 9 and 449 9 C 327 8 and 841 8 for active channels Value between 199 9 and 449 9 C 327 8 and 841 8 F for active channels 5 5 8 Value between 1 and 999 Measurement Once every 1 to 999 seconds Measurement Update Time Digital Format Enable Analog Output 1 2 1 2 3 4 Analog Output Scale Factor Analog Output Zero Offset Units Celsius or Fahrenheit
65. m 1 Send CTRL T 14h to confirm the instrument is in Standby mode This assures instrument is in Standby mode at the Main menu and not running If the instrument is already in Standby mode it echoes instead of CTRL T 2 Send CTRL R 12h to enable Run mode The instrument display now shows temperature data 3 Send CTRL T 14h to return to Standby mode and return to the Main menu Repeat steps 2 and 3 as required Control Commands for Disabling the Front Panel Buttons Disabling the control panel through the serial port disables the front panel display and buttons Once disabled the instrument can be controlled only through the RS 232 port Table C 6 lists the front panel control commands Lockout front panel display and buttons CTRL L OCh Unlock front panel display and buttons CTRL U Table C 6 Front Panel Control Commands Control Commands for Remote Mode The serial port controls the instrument in Remote mode In Remote mode the front panel buttons are locked and control is available only through the RS 232 port The instrument echoes all commands when it is ready to receive another command thus forming a positive handshake The remote enable command CTRL E 05h is acknowledged only when the instrument is displaying the Main menu After receipt of this command the instrument enters Remote Run mode The instrument continues to display the Main menu with the front panel buttons locked awaiting furth
66. ment if it is returned to LUXTRON within one year of the original shipment provided an examination discloses that the product is defective LUXTRON may at its option replace the unit in lieu of repair The repairs or replacement will be made without charge if the instrument is returned within one year of the original shipment date If the fault has been caused by misuse neglect accident or abnormal conditions of operation repairs will be billed at current service rates In such case a purchase order number is required prior to the start of any repair If requested an estimate of the service charges will be given prior to the start of any repair The foregoing warranty is in lieu of all other warranties express or implied including but not limited to any implied warranty of merchantability fitness or adequacy for any particular purpose or use LUXTRON Corporation shall not be liable for any special incidental or consequential damages whether in contract tort or otherwise Damage in Shipment for the Original Purchaser The instrument should be thoroughly inspected immediately upon delivery to purchaser All material in the container should be checked against the enclosed packing list LUXTRON cannot be responsible for shortages against the packing list unless a claim is filed with the carrier immediately Final claim and negotiations with the carrier must be completed by the customer Warranty and Service F 1 What to D
67. mpletely automatic If it becomes necessary to abort the calibration sequence send CTRL A 01h during the sequence C 10 Model 710 712 and 790 Fluoroptic Thermometer User Manual Upon completion the instrument returns to the Main menu and displays one of the following messages on the front panel and as output on the serial port e U means the temperature is unstable The temperature readings were unstable during the calibration period and prevented the instrument from calibrating The internal reference table is used for temperature conversion for this channel only When this error occurs ensure the temperature reference is not drifting and recalibrate as necessary See the section Calibration Mode in Chapter 3 Using the Instrument for calibration instructions e C means that calibration completed successfully without any errors The instrument is ready for use These codes appear in character position 5 of each data field If a U appears for a channel that channel is automatically deselected The calibration offset used for data display is the last set of calibration data If calibration is performed at the wrong temperature recalibrate the instrument Remote Setup and Command Syntax Remote setup has two basic functions e Configure the system for a measurement Query the existing configuration Remote setup is available only when the instrument is displaying the Main menu Therefore the instrument mus
68. n CPU Reset Button recessed 9 5 Sensor 1 Sensor 1 Sensor 1 Sensor 1 Return Sensor 1 Return Sensor 1 Return Not Used Sensor 2 Sensor 2 Not Used Sensor 2 Return Sensor 2 Return Not Used Not Used Sensor 3 Not Used Not Used Sensor 3 Return Not Used Not Used Sensor 4 Not Used Not Used Sensor 4 Return Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground 1 2 3 4 5 6 7 8 9 Figure E 1 Sample Back Panel View with Analog Output Pinout When the instrument is in Standby mode at the Main menu the analog output is set to 0 V In Run mode the analog output is offset by the measured temperature For relative measurements this initial offset can be set to zero The analog offset sets the temperature at which the analog output outputs 0 V This temperature be set anywhere in the operating range No offset means the output voltage is zero when the temperature is 0 or O F Analog Output Options E 1 Figure 2 shows the formula for calculating the output voltage range using the highest and lowest measured temperatures as input Table E 1 lists the definitions for each variable SF T meas Ta Figure E 2 Formula for Calculating the Voltage Output Scale factor in mV degree Measured temperature Analog offset temperature Table E 1 Voltage Output Formula Variable Definitions Because the temperature range is restricted by the outp
69. n the IEEE bus or it conflicts with other devices using the same address D 2 Model 710 712 and 790 Fluoroptic Thermometer User Manual Table D 2 lists the digital output settings that LUXTRON sets prior to shipping an instrument with the optional IEEE 488 interface Table 0 2 IEEE 488 Option Digital Output Settings If default settings have been restored as described in the section Reinitializing the Instrument in Chapter 5 Maintenance and Troubleshooting reprogram Setup parameters as follows To reprogram Setup parameters 1 Press to select 5 Ss gt ETUP from the Main menu Press YES to display the first option CHANG Press NEXT to display next option the CHANGE BAUD RAT Repeatedly press NEXT until the message CHANGE DIGITAI E option DIGITAL PORT Press YES to display the message SELECT PORT Press or to select JEEE then press YES to continue L OUTPUT DIGITAL FORMAT bypasses 7 Press or to toggle to then press YES to continue E TIM Option ENABLI E STAMPS appears 8 Press or to toggle between NO and YES then press YES to continue Option CHANGE I EEE ADDRI ESS appears 9 Press YES to display the message IEEE DEVIC E ADDRESS
70. nsor 2 Sensor 2 Not Used Sensor 2 Return Sensor 2 Return Not Used Not Used Sensor 3 Not Used Not Used Sensor 3 Return Not Used Not Used Sensor 4 Not Used Not Used Sensor 4 Return Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground 1 2 3 4 5 6 7 8 9 Figure 5 1 Sample Back Panel with Analog Pin Out All Models Maintenance and Troubleshooting Error and Informational Messages Error and informational messages may appear on the front panel display the analog output and the digital output port RS 232 port or optional IEEE 488 interface Table 5 3 lists the temperature related error messages and Table 5 4 lists other system messages Error Message CAL ERRORS ON 19 1930 1234 Ui U1 U1 U2 U1 U2 U3 or U1 U2 U3 U4 Note Displayed probe values directly correspond to number of active channels on instrument Condition and Corrective Action Probe Error Appears when signal from a particular channel is abnormal Caused by a probe signal level that is high or low such as a probe not properly attached to the connector P Err displays on instrument front panel PE displays over the digital output port RS 232 port or optional IEEE 488 interface Probe High Appears on front panel of instrument when signal from probe is overly strong Can be corrected by slightly unscrewing probe connector from instrument or bending probe into a loop reduces t
71. o in Case of a Fault Notify the LUXTRON Customer Service Department with details of the problem Include the instrument model number and serial number On receipt of this information Customer Service will attempt to locate the fault and if possible solve the problem over the telephone If Customer Service concludes that the instrument must be returned to LUXTRON for repair a Return Material Authorization RMA Number will be issued Upon receipt of the RMA number the instrument should be returned transportation prepaid Shipments to LUXTRON for Repair All shipments of LUXTRON instruments should be made prepaid and insured by way of United Parcel Service or Best Way For overseas customers units should be shipped air freight priority one The instrument must be shipped in the original packing container or its equivalent LUXTRON is not responsible for freight damage to instruments that are improperly packed Shipping Address LUXTRON Corporation 3033 Scott Blvd Santa Clara 95054 3316 USA Additional Contact Information Phone 408 727 1600 FAX 408 727 1677 FAX Email info luxtron com Website http www luxtron com Model 710 712 and 790 Fluoroptic Thermometer User Manual
72. ol Commands for Disabling the Front Panel Buttons C 8 Control Commands for Remote Mode C 8 Remote Instrument Calibration C 10 Remote Setup and Command Syntax C 11 Sample Remote Setup Commands C 15 Sample Remote Query Commands C 15 Appendix D Optional IEEE 488 Interface D 1 IEEE 488 OvervieW 2 x SERRA CER a a C ees D 1 How the IEEE 488 Interface Works D 2 IEEE 488 Interface Specifications D 2 Setup for the IEEE 488 Interface D 2 Remote InstrumentOperation 4 D 4 Control Commands ea 1 o Line ead 4 ele tak Be eter na D 4 Remote InstrumentCalibration D 6 Serial Poll Status Byte D 8 Remote Instrument Programming D 9 Sample Remote Programming Commands D 13 Sample Remote Query Commands D 14 Digital Output Formats D 14 IEEE Digital Output Format
73. owing chapters and appendices Chapter 1 Introduction provides an overview of the instruments and describes major components and default settings of the instruments Chapter 2 Unpacking and Installing the Instrument describes how to unpack assemble and test the instrument Chapter 3 Using the Instrument describes how to use the front panel buttons and Setup Calibration and Run modes Chapter 4 Theory of Operation discusses the temperature sensor and how the instrument calculates temperature measurements Chapter 5 Maintenance and Troubleshooting discusses how to maintain the instrument and troubleshoot problems Appendix A Specifications defines specifications for the accuracy precision and performance of the instrument Appendix B Instrument Probes discusses how to use and care for probes supplied with the instrument Appendix C RS 232 Serial Output Port discusses the serial port of the instrument as well as complete setup and diagnostics Appendix D Optional IEEE 488 Interface discusses the optional IEEE 488 interface as well as complete setup and diagnostics Appendix E Analog Output Options discusses the Analog Output Voltage AOV 5 V Standard and 10 V option as well as the Analog Output Current AOC option Appendix F Warranty and Service documents warranty and service information for the instrument Introduction 1 5 gt
74. perature measurement in 9 or The temperature is an optionally signed fixe point number with up to three digits to the left of the decimal point and two on the right If the number is positive the minus sign is replaced by an ASCII space character 20h Leading zeros are replaced by spaces except for the digit immediately preceding the decimal point 5550 where s represents spaces The minus sign 2Dh if present immediately precedes the first displayed digit if the number ss x xx Additional information regarding the measurement such as error codes limits exceeded or calibration complete This subfield is preceded by and followed by quotation marks 22h for example One or more two letter status codes may appear between the quotation marks such as for probe error LL forexceeding lower temperature limit exceeding higher temperature limit for calibration complete without errors for calibration error unstable Carriage return ODh Line feed 0Ah TableD 12 IEEE Measurement Output Message Data Field Descriptions Optional IEEE 488 Interface 17 Figure D 9 shows sample error message that includes temperature information In this example the high temperature limit was exceeded DC 1 101 00 HL lt CR gt lt LF gt FigureD 9 IEEE Digital Output Format High Temperature Exceeded If a temperature is not included
75. ple time date string TM 8 57 17A DT 8 08 96 SM 4 MU 20S lt CR gt lt LF gt Figure 0 13 Sample Time Date String The string includes the current SAMPLES MEASUREMENT and MEASUREMENT UPDATE TIME parameter values However the measurement update time is included only if the value is not set to CONTINUOUS Optional IEEE 488 Interface D 19 20 Model 710 712 and 790 Fluoroptic Thermometer User Manual Appendix E Analog Output Options This appendix discusses the following options Analog Output Voltage AOV 5 V Standard and 10 V option e Analog Output Current AOC option Analog Output Voltage AOV This option which is programmable from the Setup menu see the section Setup Mode in Chapter 3 Using the Instrument provides an analog output voltage for each channel You can control both the scale factor mV degree and offset temperature the temperature at which the analog output voltage is 0 V The analog output voltage has a full scale range of 5 V with a resolution of approximately 2 5 mV Figure E 1 provides a view of the back panel and analog output pinout Optional IEEE 488 Interface MODEL SERIAL Serial Port tor Power Connec Flashlamp Module Fuse Location Analog Output Connector Functio
76. ransmission of the fiber optic cable Probe Low Appears on front panel of instrument when signal from a particular channel is overly low a Ensure probe is attached b Check condition of probe Probe should not show any breaks tears or sharp bends Clean probe connector with spectrograde isopropyl alcohol or methanol Replace if necessary Check for use of extension cables designed to extend probe length Additional connections can reduce signal Calibration Error on Probe Appears when one or more channels developed an error during calibration Reference temperature was not stable and drifted beyond acceptable limits during calibration preventing instrument from locking on and calibrating to unstable temperature CAL ERRORS ON displays on instrument front panel us probe number displays on instrument front panel and appears over digital output port RS 232 port or optional IEEE 488 interface Calibration correction is set to zero when an error occurs and channels with calibration errors are deselected Instrument uses internal reference table for conversion with no calibration correction offsets added to displayed temperature a Place probe s in stable independent temperature reference instrument Recalibrate instrument Table5 3 Temperature Related System Error Messages 5 4 Model 710 712 and 790 Fluoroptic Thermometer User Manual NO PROBES SELECTED HL LL Instrument Reiniti
77. re Note Only IEEE members may place orders over the telephone The IEEE 488 interface allows the simultaneous connection of several different instruments on a common bus There is usually a system controller either a dedicated piece of equipment or a personal computer PC The IEEE 488 interface hardware and firmware for the instrument were tested using an IBM compatible PC with a National Instrument GPIB PCII controller card Optional IEEE 488 Interface D 1 How the IEEE 488 Interface Works The controller sends commands to the instrument to change its operating parameters and directs the instrument to take measurements The results of the measurements are either displayed locally by the controller sent to a printer or saved on a disk for later processing IEEE 488 Interface Specifications Table D 1 lists the basic IEEE 488 interface specifications Maximum number of instrument 15 or device inputs Maximum cable length between 2 m 6 56 ft times the number of devices a group of devices or 20 m 65 62 ft whichever is less Maximum data transfer rate 1 MB per second TableD 1 IEEE 488Specifications Apply power to at least 50 percent of the units on the IEEE 488 interface for the bus to operate reliably Setup for the IEEE 488 Interface Before connecting the instrument into an IEEE 488 system determine the unique device address to be used by the instrument Note The instrument must use a unique address o
78. selections These selections are found in Setup mode see the section Setup Mode The selections allow you to change an instrument parameter or function and are usually followed by a colon and sometimes by a question mark Setup and Calibration mode as well as Run mode are described in Chapter 3 Using the Instrument Introduction 1 3 Default Setup Parameters Table 1 1 lists the default Setup parameters Setup Parameter Model 710 712 Eemeeee G 0 _ _ je jer G om po N Table1 1 Default Setup Parameters Information describing how to change parameters for particular applications are provided in Chapter 3 Using the Instrument 1 4 Model 710 712 and 790 Fluoroptic Thermometer User Manual How to Use this Manual This manual explains how the LUXTRON Model 710 712 and 790 Fluoroptic thermometers work and provides information on how to set up operate and maintain these thermometers These Fluoroptic Thermometer models despite their advanced technology are simple to use The setup and operating instructions provide information that average users might need with a minimum of technical details Contact the LUXTRON Sales or Customer Service Department for additional information The manual is organized into the foll
79. t be displaying the Main menu prior to remote setup All remote setup commands sent to the instrument are echoed back to the sender All ASCII Carriage Returns 0Dh that are echoed are normally followed by an ASCII line feed 0Ah An invalid command results in a single character 3Fh being returned Figure C 3 shows the syntax for configuring the system Figure 4 shows the syntax for querying the system status Tables C 9 and C 10 describe each of the fields for the configuration and query command syntax respectively Embedded spaces in the commands are ignored RS 232 Serial Output Port 11 set up system send ESC command configuration parameters CR Figure Remote Setup System Setup Command NN Two letter command see Table 12 eonnguretion p String information associated with command see Table C 12 parameters TableC 9 Remote Setup System Setup Command Field Descriptions To query system status send lt 5 gt lt gt Figure 4 Remote Setup Query System Status Command Two letter command see Table C 12 Table C 10 Remote Setup Query System Status Command Field Descriptions C 12 Model 710 712 and 790 Fluoroptic Thermometer User Manual Figure C 5 shows the response provided by the instrument to a query Table C 11 describes each field command configuration parameters lt CR gt
80. tch the new limits specified for the other channel Channels toggled off during this step retain the low and high limits of 199 9 to 449 9 C as default To turn the probe on toggle channel on as described in Step 2 SELECT PROBES To specify the temperature units a Press YES The message TEMPERATURE UNITS appears Press and or to toggle between C and F Press YES to save selection and continue To change temperature units a Press YES The message PROBE 1 2 3 4 appears If necessary press button below each probe channel to turn on off associated probe that needs does not need temperature limit changed Press YES The message ET LOW LIMIT appears Press YES The message LIMIT appears Press and or to scroll through range of values 199 9 to 449 9 C 327 8 to 841 8 F Press YES The message Civ SET HIGH LIMIT appears Press YES The message HIGH LIMIT appears Press and or to scroll through range of values 199 9 to 449 9 C 327 8 to 841 8 F Press YES to save selection and continue Table3 2 Setup Menu First Level Messages and Definitions continued Using the Instrument 3 7 ENABLE DATASAVE FEATURE Enables instrument to store measurements internally Note Although this option is available for selection it is currently nonfunctional
81. the instrument LUXTRON 790 Fluoroptic Thermometer YES MENU PREV NEXT Figure 1 1 Rack Mount Four Channel Fluoroptic Thermometer Model 790 System Overview The Fluoroptic thermometer is a temperature measurement instrument The probes used with the instrument are designed to be minimally disturbing and capable of functioning in otherwise hostile environments The instruments may be used for many applications including the following e Microwave food and packaging development e Electronics testing e Semiconductor manufacturing High voltage and electrical power environments Features The instrument provides the latest technology in Fluoroptic thermometers It provides many features including the following Digital signal processing provides less noise and makes the signal easier to control Programmable gain each channel is controlled separately e MS DOS operating system and PC bus e 5 232 serial port Analog output 5 V standard Introduction 1 1 Options The following options are available JEEE 488 General Purpose Interface Bus GPIB interface Analog output 10 V range replaces 5 V analog output e Analog current loop 4 to 20 mA replaces 5 V analog output Note The instrument may physically have both an RS 232 port and an IEEE 488 interface However only one may be active at any time Major Components The instrument consists o
82. to be 25 C 77 F Channel 1 calibrated with an error and all other channels calibrated successfully Note Remote calibration automatically turns on calibration correction and turns off any probe that calibrated with an error Optional IEEE 488 Interface D 7 Serial Poll Status Byte After performing a remote measurement or a remote calibration the instrument indicates that a measurement is complete by asserting the service request SRQ lead This acts as an interrupt to the controller causing it to poll active bus devices to determine the source of the request Table D 4 lists the serial poll status byte definitions 1 Instrument has a measurement or the result of a calibration in its internal buffer ready to be read 2 Instrument has an answer to a programming query ready A time date stamp is available to be read by the controller If time date stamps are enabled the serial poll status register has two bits set MEAS and TIME 45h 4 The controller should perform two reads a Get the measurement b Get the time date header RDT Instrument has completed a reading and is waiting for instructions to transmit the measurement m pe 20h SRO Service request Set the instrument when requesting service m TableD 4 Serial Poll Status Byte Definitions Table D 5 lists typical serial poll status responses D 8 Model 710 712 and 790 Fluoroptic Thermometer User Manual
83. ton swab moistened with spectrograde isopropanol or methanol B 2 Model 710 712 and 790 Fluoroptic Thermometer User Manual ProbeLength Signal level decreases as the fiber length increases The losses experienced vary by fiber type The use of multiple connectors and extensions also reduces signal level A good rule of thumb is that the signal level is reduced by half for each additional connection The lower the signal the worse the signal to noise ratio This increases the number of samples per measurement needed to achieve a specific level of precision Increasing the number of samples per measurement improves the precision and accuracy of the reading because more samples are averaged together to obtain a measurement However excessively low signal levels may fall outside the normal operating range of the instrument resulting in a P LOW error message Instrument Probes B 3 4 Model 710 712 and 790 Fluoroptic Thermometer User Manual Appendix C RS 232 Serial Output Port This appendix discusses the serial port of the instrument as well as complete setup and diagnostics for this feature Overview The serial port on the instrument meets Electronics Industry Association EIA standard RS 232 This port is used for communication with another digital instrument such as a serial printer terminal or computer It can be used as an output port for logging measurements or as an input port for remote control
84. trument as discussed in Appendix C 5 232 Serial Output Port Probe Use and Handling Handled properly probes should last indefinitely Appendix B Instrument Probes discusses how to care for and maintain the probes Observe the following precautions when using the probes e Flexibility Each probe is made from a single strand of silica fiber or plastic clad silica PCS fiber These fibers are flexible However any fiber may be damaged or broken if it is bento too sharply Temperature range Using a probe outside its intended temperature range or in chemical environments may shorten the life span of the probe e and storage Each probe is supplied with a red vinyl cap over the connector Replacing this cap when the probe is not in use prevents dirt from accumulating on the open fiber end Occasionally clean the connector with spectrograde isopropyl alcohol or methanol 2 6 Model 710 712 and 790 Fluoroptic Thermometer User Manual 3 0 Using the Instrument This chapter describes how to use the front panel buttons as well as how to use Setup Calibration and Run modes Setup Mode Setup mode allows displaying and changing setup parameter values Use Setup mode for initial setup or for when the application changes and different types of probes or system devices are required Access Setup mode by pressing at the Main menu Table 3 1 lists the use for each front panel button Figure 3 1 illustrates
85. tted Thus if channels 1 and 2 are selected the output message has the following format see Figure C 2 and Table C 2 1111111111111122222222222222TTTT FIELD 1 FIELD 2 FigureC 2 Output Message Format ABBR FIELD 1 First channel selected such as Channel 1 FIELD 2 Second channel selected such as Channel 2 Four character field consisting of the following 20h20h Spaces two FIELD T 0Dh z OAh Transmits regardless of the number of channels selected in ABBR format TableC 2 Output Message Format ABBR Format Field Descriptions Notes With the exception of LL and HL errors are shown as a minus or dash 2Dh in positions 6 through 12 and the two digit error code appears in positions 13 and 14 Model 710 is a one channel instrument and only shows data for FIELD 1 and FIELD T in ABBR format Each temperature measurement is sent in Fields 1 through 2 each of which has 14 characters Table C 3 lists the complete message format RS 232 Serial Output Port 5 Position Hex Code Char Application Comments Probe Number 3 1 Model 710 12 Model 712 1234 Model 790 Space Note During remote calibration position may be occupied by cif probe is calibrated e u if probe is unstable Space positive temperatures pc negative temperatures Ooz Temperature 100s digit with leading zero suppression NENEENNITITIITTTITTON
86. ut limit of 5 V use the 10 mV degree scale to cover the entire range of the instrument For better resolution use the highest possible scale factor Table E 2 lists the relationship between scale factor temperature range and resolution Scale Factor Temperature Range 100 default 200 500 Table 2 AOV 5 V Relationship between Scale Factor Temperature Range and Resolution If the instrument detects an error during operation the analog output is set to 0 V See Chapter 5 Maintenance and Troubleshooting for more information If the temperature trip limits are enabled a high limit trip sets the output to 5 V and a low limit trip sets the output to 5 V These signals can be used to power relays or other control devices E 2 Model 710 712 and 790 Fluoroptic Thermometer User Manual Analog Output Voltage 10V Range Option The 10 V option is similar to the 5 V range except for the scale factor as listed in Table E 3 Scale Factor Temperature Range 200 default 400 1000 Table AOV 10 V Relationship between Scale Factor Temperature Range and Resolution Note Units with the standard 5 V range must be returned to LUXTRON for conversion to the 10 V range Analog Output Options E 3 Analog Output Current AOC Option The AOC option provides a 4 to 20 mA current loop for each channel This Loop Powered option requires an external power supply as shown in Figure E 3
87. utton to adjust reference temperature There is a 41 second countdown followed by a AE PROSS A calibration status message Press any button to abort EN EI EB 4 Values in this field directly relate to number of channels on instrument for example 1 2 3 4 Channels 1 through 3 4 Channels can be toggled on and off by pressing the button directly below the channel number Legend Active buttons L lInactive buttons Figure3 2 Calibration Mode Menu Tree Usingthe Instrument 3 15 CAL CORRECTION 15 Must be activated to calibrate instrument If OFF is selected display returns to Main menu PROBE 1234 Cal Correction must be activated to calibrate specifed probes Note Probe values listed 1 1 and 2 or 1 through 4 directly correspond to number of probes channels INPUT REF TEMP Specifies exact temperature reference media Value must be near temperature of intended application To calibrate instrument a Place probe s into independent temperature reference media Press PREV at Main menu To activate Cal Correction feature and continue calibration a Press or to toggle to ON b Press YES to save selection and continue To specify probe s to calibrate a Press button located below probe channels to turn off probes not to be tested Press YES to save selection and continue To enter

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