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58 • Troubleshooting

NEW FOCUS, Inc.

64X7 rev E.fm Page 58 Tuesday, April 3, 2001 4:16 PM

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Содержание Vidia-Discrete 64 7 Series

Страница 1: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Страница 2: ...performance of procedures other than those specified herein may result in hazardous radiation exposure 5215 Hellyer Ave San Jose CA 95138 1001 USA phone 408 284 6808 fax 408 284 4824 e mail contact newfocus com www newfocus com 64X7 rev E fm Page 1 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 3: ...tent 5 319 668 and patents pending Information in this document is subject to change without notice Copyright 2001 2000 1999 New Focus Inc All rights reserved The symbol and NEW FOCUS Inc are registered trademarks and Vidia and Vidia Discrete are trademarks of New Focus Inc Littelfuse and Slo Blo are registered trademarks of Littelfuse Inc Document Number 640054 Rev E 64X7 rev E fm Page 2 Tuesday ...

Страница 4: ...ing the Front Panel Controls 14 Control Combinations 17 Back Panel and Laser Cavity Connections 17 Turning on the Power 18 Enabling Local Front Panel Control 19 Setting the Laser Power 20 Setting the Laser Wavelength Track Mode 20 Performing Wavelength Scans 20 Monitoring Scans 22 Modulating the Laser Output 22 Reading an Input Signal 23 64X7 rev E fm Page 3 Tuesday April 3 2001 4 16 PM Artisan Te...

Страница 5: ...g the AC Voltage Selection 53 Troubleshooting 57 Front Panel Controls Won t Work 57 Computer Control Doesn t Work 57 Wavelength Not Set to the Start Wavelength 57 Scans Won t Start 58 Power Display Flashes 58 Error Codes 58 Calibrating the Laser 59 Customer Service 61 Service 61 Technical Support 61 Appendices 63 Appendix A Physical Specifications 63 Appendix B RS 232 Connector Wiring 64 Appendix ...

Страница 6: ...am directly Be aware of and follow the warnings on the safety labels examples are shown on page 6 To completely shut off electrical power to the unit turn off the keyswitch The Power button on the front panel only controls power to the laser diode even when power to the diode is off power is still supplied to other system components Do not open the laser system There are no user serviceable parts ...

Страница 7: ... 1450 1650 nm 55 mW 6437 1450 1650 nm 55 mW Danger label Addressed Remote Laser Power AC Power 0 1 Local Wavelength Adjust Track Wavelength nm Current nA Laser Output FC APC Power Adjust Power Setpoint dBm 64X7 Made in USA Tunable Laser Source VIDIA DISCRETE INVISIBLE LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM Power output Wavelength CLASS IIIB LASER PRODUCT Start λ Stop INVISIBLE LASER RADIATI...

Страница 8: ...y with the same type and rating of fuse Input VAC 90 120 200 250 CAUTION Risk of electric shock do not remove cover Refer servicing to qualified personnel 10 250 VAC 1 2 0 5A 48 66Hz Fuse 2 0 A T 1 0 A T 5215 Hellyer Ave San Jose CA 95051 0905 U S Patent 5 319 668 and Patents Pending Model Number Serial Number Manufactured This product conforms to the applicable requirements of 21 CFR 1040 10 and ...

Страница 9: ...8 User Safety NEW FOCUS Inc 64X7 rev E fm Page 8 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 10: ...dented or scratched covers or broken knobs please contact New Focus immediately Save the shipping container and packing material for future shipping needs Check that the power module on the back of the controller is set to the AC line voltage appropriate for your work station see page 51 for information on checking and changing the voltage Setting Up the Laser The laser is designed to operate in e...

Страница 11: ...laser and plug it into a wall outlet 4 Turn on the system Turn on the AC Power keyswitch position 1 to initialize the system the system ID will appear in the wavelength display during initialization After turning the keyswitch allow the system a minimum of 45 minutes to warm up before turning on the laser diode step 6 to ensure the system meets its operating specifications Once you turn on the key...

Страница 12: ...he current limiter and the power display will start to flash 8 Set the system to track mode To manually set the wavelength the system needs to be in track mode A light in the Track button indicates when the system is in track mode If it is not lit press the Track button to turn it on 9 Set the Wavelength Turn the Wavelength Adjust knob to set the wavelength This will allow you to tune the laser wi...

Страница 13: ...12 Getting Started NEW FOCUS Inc 64X7 rev E fm Page 12 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 14: ...d on the Littman Metcalf design see Principles of Operation on page 47 The system provides high resolution when stepping between wavelengths An ultra low noise current source controls the laser s output power A temperature control circuit actively stabilizes the laser cavity temperature for optimal performance Connecting Fiber to the Laser Use only FC APC connectorized fiber with the Vidia Discret...

Страница 15: ...it Power is not sup plied to the laser diode until the Laser Power button is activated 2 Power Indicator This indicator is lit when the system power is on To check if power is being supplied to the laser diode check the indicator light in the Laser Power button 3 Local Button Returns the controller to local front panel control when the driver is in remote computer control mode 4 Laser Power Button...

Страница 16: ...ile pressing the Local button hold this switch up to view the GPIB address in the wavelength display hold it down to view the baud rate for RS 232 control Use the Wavelength Adjust knob to adjust the address or baud rate 9 Track Button Switches the laser between track mode where you can specify a set operating wavelength and scan mode 10 Wavelength Adjust Knob Adjusts the wavelength while in track...

Страница 17: ...nector 14 Power Adjust Knob Adjusts the laser s output power Control Combinations To access many of the laser s features from the front panel you will need to use several controls at the same time The following table summarizes these combinations Local Button GPIB RS232 Switch Wave length Switch Wave length Knob View Set start wavelength for scans View Set stop wavelength for scans Set GPIB addres...

Страница 18: ...o contains the fuses for the unit 7 RS232 Connector for controlling the laser over an RS 232 interface Interlock Laser Sync Output Current Modulation Input Detector Input IEEE 488 RS232 120Vac WARNING For continued protection against fire hazard replace only with the same type and rating of fuse Input VAC 90 120 200 250 CAUTION Risk of electric shock do not remove cover Refer servicing to qualifie...

Страница 19: ...ch to allow the system to warm up 5 Press the Laser Power button on the controller front panel to allow current to flow to the diode The button will flash during the five second safety delay before the current is activated The button will remain lit while current is flowing to the laser diode 6 Turn the Power Adjust knob to control the output power Turn ing the knob clockwise increases power count...

Страница 20: ...5 for power specifications Setting the Laser Wavelength Track Mode The Vidia Discrete has two modes track mode and scan mode While in track mode you can actively control the tuning motor to operate the laser at a set wavelength 1 If the laser is in scan mode the LED in the Track button is off switch to track mode by pressing the Track button You cannot switch to track mode during a scan Finish the...

Страница 21: ...y pushing up the Start Stop λ switch 2 While still holding the switch up turn the Wavelength Adjust knob to change the start wavelength 3 Push the Start Stop λ switch down to display the current stop wavelength 4 While still holding the switch down turn the Wavelength Adjust knob to change the stop wavelength The stop wavelength must be larger than the start wavelength 5 Release the switch 6 If th...

Страница 22: ...nal conforms to the following specifications For models with a serial number ending below 02000 the impedance is 5 kΩ and the modulation is 0 2 mA V The DC coupled Current Modulation Input is NOT current limited To prevent damage to the laser diode DO NOT modulate the current with input voltages above 10 V Since changes in the current affect the laser frequency modulating the current will also cre...

Страница 23: ...e input allows you to collect data from another instrument such as a photodetector during a wavelength scan The signal from this input can only be read using computer control see page 33 it will not be displayed on the front panel Connect the line for the input signal to the BNC connector on the back of the laser controller Make sure the signal conforms to the following specifications Detector Inp...

Страница 24: ... panel to re enable the front panel All front panel operations are available through computer control In addition several functions are unique to computer control Before attempting to communicate with the instrument you must set the device address for IEEE 488 or the baud rate for RS 232 via the front panel Using the IEEE 488 Interface The IEEE interface also known as the General Purpose Interface...

Страница 25: ...r appears in the Wavelength display The address can be from 1 to 31 3 Release the Local button and the GPIB RS232 switch Using the RS 232 Interface The RS 232 9 pin connector on the back of the controller allows remote operation through an RS 232 serial connection To use the RS 232 interface attach a 3 wire straight through RS 232 cable with a male D sub 9 connector to the RS 232 port on the back ...

Страница 26: ... the front panel of the laser To return the controller to local front panel control press the Local button on the front panel Understanding the Command Types There are three types of commands understood by the laser controller Set commands Query commands and Sense commands Use Set commands to set or change a value Examples would be commands that turn on the laser or set the operating power Use Que...

Страница 27: ...Identification Query will be ignored Laser Controller Responses All commands evoke a response from the driver set commands return an Ok when executed If you are using RS 232 the response is sent immediately with IEEE 488 the response is loaded into the output buffer a first in first out buffer with a capacity of 5 messages Laser controller responses are sent differently depending on the interface ...

Страница 28: ...85 to 1 15 if you enter a power trim value outside of this range Conventions These typographical conventions are used in the following Command Summary and Command Definitions sections The part of the command shown in uppercase represents the short form of the command The commands are case insensitive If the syntax shown is SOURce CURRent then the controller will accept any of the following SOUR CU...

Страница 29: ...nse Voltage from Detector Input 33 Syntax Command Page OUTP on off Turn Laser Power On Off 34 OUTP Query Laser Power On Off 34 POW value Set Laser Output Power dBm 35 POW Query Laser Power Setpoint 35 POW TRIM value Set Power Trim 36 POW TRIM Read Power Trim 36 Syntax Command Page WAVE value MIN MAX Set Wavelength nm 37 WAVE MIN MAX Query Wavelength 37 WAVE OFFS value Set Wavelength Offset nm 38 W...

Страница 30: ...STAR Query Starting Wavelength 41 WAVE STOP value Set Stopping Wavelength nm 42 WAVE STOP Query Stopping Wavelength 42 WAVE STEP value Set Step Size for Step Scans nm 42 WAVE STEP Query Step Size for Step Scans 42 OUTP SCAN STAR value Start scanning 44 OUTP SCAN STEP Next Step in Interactive Step Scan 44 OUTP SCAN ABOR Abort Scan cancel scan and reset 45 64X7 rev E fm Page 29 Tuesday April 3 2001 ...

Страница 31: ...ns Turning on the system system initialization Turning on the diode OUTPut ON Scanning OUTPut SCAN START Set Wavelength SOURce WAVElength Starting any of these operations clears the OPC sta tus bit When the laser returns to the start wave length or reaches the target wavelength the OPC status bit is set to 1 The bit is also set to 1 if the movement is interrupted either with OUTPutSCAN ABORt which...

Страница 32: ...d Target values can differ by up to 3 due to component variations EXT returns control to the external front panel controls The laser power will return to the last level set from the front panel Note In Remote Mode the front panel knobs are ignored but they are still active If a knob is turned and the controller is then switched back to external front panel control the corresponding parameter will ...

Страница 33: ...AVE 1550 0250 The wavelength is 1550 025 nm Sense Level of Current to Diode Syntax SENSe CURRent LEVel DIODe Description Returns the magnitude of the laser diode cur rent in milliamperes The value returned is the same as that seen on the front panel of the con troller at the time the command is executed Response x x Units milliamperes mA Example SENS CURR DIOD 59 2 64X7 rev E fm Page 32 Tuesday Ap...

Страница 34: ... Units C Example SENS TEMP LASE 31 1 The diode temperature is 31 1 C Sense Voltage from Detector Input Syntax SENSe VOLTage LEVel AUXiliary Description Returns the voltage detected at the Detector Input on the back panel of the laser controller Note This is the only way this value can be read it cannot be read on the front panel The resolution for the Detector Input is 10 bits so the step size is ...

Страница 35: ...OFF ON 0 or 1 0 or OFF turns the laser off 1 or ON turns the laser on Example Turn off power to the laser OUTP 0 OK Query Laser Power On Off Syntax OUTPut Description Reads whether or not the laser power is on Response 0 for laser current off and 1 for laser current on Example Determine if the laser current is on or off OUTP 1 The laser is turned on 64X7 rev E fm Page 34 Tuesday April 3 2001 4 16 ...

Страница 36: ...avelength dependent You may not be able to achieve the set power at all wavelengths See specifications on page 65 Example Set the laser power to 2 5 dBm POW 2 5 OK Query Laser Power Setpoint Syntax SOURce POWer LEVel Description Queries the laser power setpoint Response x x Range See specifications on page 65 Example POW 2 8 Laser output is set to 2 8 dBm 64X7 rev E fm Page 35 Tuesday April 3 2001...

Страница 37: ...rection use value 10 dB correction 10 Example The power level shown on the front panel is off by 10 when measured by an external power meter so you want to increase the output power by 10 POW TRIM 0 90 OK With the power display on the laser showing the same power as before the external power meter will show that the power level has increased by 10 Query Power Trim Syntax SOURce POWer TRIM Descript...

Страница 38: ...epen dent use the Query Wavelength command to deter mine your laser s range Units nanometers nm Example Set the wavelength to 1525 nm WAVE 1525 OK The wavelength starts changing at the maximum rate until it reaches 1525 nm Query Wavelength Syntax SOURce WAVElength MIN MAX Description Queries the wavelength setpoint for track mode or the minimum or maximum available wavelengths Response x xxxx Unit...

Страница 39: ...han the reading on the meter WAVE OFFS 0 2 OK You will not notice a difference without using an external wavelength meter Query Wavelength Offset Syntax SOURce WAVElength OFFSet Description Checks the value of the wavelength offset The units are in nanometers Response x xxxxx Units nanometers nm Example WAVE OFFS 0 03000 The wavelength has been offset by 0 030 nm from the factory calibrated settin...

Страница 40: ...TRAC OFF OK Query Scan State Syntax OUTPut SCAN STATe Description Reads the scan state of the laser Response x x 0 The laser is in scan mode ready to start a scan x 2 The laser is in track mode x 3 The laser is in automated step scan mode x 4 The laser is in interactive step scan mode Example OUTP SCAN STAT 0 The laser is at the start wavelength and ready to scan 64X7 rev E fm Page 39 Tuesday Apri...

Страница 41: ...xample Set a 3 second pause between steps of a step scan WAVE DWEL 3000 OK Query Dwell time Syntax SOURce WAVElength DWELl Description Checks the delay between steps of an automated step scan Response x Units milliseconds ms Example WAVE DWEL 3000 The laser will pause for 3000 ms between steps 64X7 rev E fm Page 40 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guara...

Страница 42: ... minimum and maximum values are laser dependent See Query Wavelength page 37 Units nanometers nm Example Set scans to start at 1530 nm WAVE STAR 1530 OK Query Starting Wavelength Syntax SOURce WAVElength STARt Description Queries the starting wavelength for scans Response x xxxx Units nanometers nm Example WAVE STAR 1530 0000 Scans will start at 1530 nm 64X7 rev E fm Page 41 Tuesday April 3 2001 4...

Страница 43: ...he minimum and maximum values are laser dependent See Query Wavelength above Units nanometers nm Example Set scans to stop at 1560 nm WAVE STOP 1560 OK Query Stopping Wavelength Syntax SOURce WAVElength STOP Description Queries the ending wavelength for scans Response x xxxx Units nanometers nm Example WAVE STOP 1560 0000 Scans will end at 1560 nm 64X7 rev E fm Page 42 Tuesday April 3 2001 4 16 PM...

Страница 44: ...tween the laser s minimum and maximum wavelengths Units nanometers nm Example Set the laser to tune in 25 nm steps this only applies to step scan mode WAVE STEP 25 OK Query Step Size Syntax SOURce WAVElength STEP Description Queries the step size Response x xxxx Units nanometers nm Example WAVE STEP 25 0000 In step scan mode the laser will tune in 25 nm increments 64X7 rev E fm Page 43 Tuesday Apr...

Страница 45: ... Example Run an interactive step scan OUTP SCAN STAR 4 OK Next Step Syntax OUTPut SCAN STEP Description In interactive step scan mode tunes the laser to the next step as defined by the step size page 43 If the next step is past the stop wavelength this com mand will reset the laser to the start wavelength Example Advance to the next step once an interactive step scan has been initiated OUTP SCAN S...

Страница 46: ...ser to the start wavelength If the laser is in track mode it will switch to scan mode Example Cancel the current scan and reset immediately to the start wavelength OUTP SCAN ABOR OK 64X7 rev E fm Page 45 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 47: ...46 Computer Control NEW FOCUS Inc 64X7 rev E fm Page 46 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 48: ...vity Essential to the performance of tunable external cavity diode lasers ECDLs is a high quality anti reflection AR coating on the front facet of the diode The AR coating turns the diode into purely a gain element A collimating lens directs the output of the diode across a diffraction grating at grazing incidence The retroreflector in the laser cavity reflects the first order diffraction off the ...

Страница 49: ...An appropriately selected point of rotation synchronizes the two such that the cavity length remains the same number of half wavelengths long as the mirror is being rotated Thus mode hop free tuning is achieved When this condition is not met the lasing wavelength will periodically hop from one mode to the next e g from N to N 1 as the laser is tuned The mechanical design of the Vidia Discrete lase...

Страница 50: ...pulsed dye laser without beam expander Applied Optics vol 17 pages 2224 2227 1978 M G Littman Single mode operation of grazing incidence pulsed dye laser Optics Letters vol 3 pages 138 140 1978 M G Littman Single mode pulsed tunable dye laser Applied Optics vol 23 pages 4465 4468 1984 K Liu and M G Littman Novel geometry for single mode scanning of tunable lasers Optics Letters vol 6 pages 117 118...

Страница 51: ...50 Principles of Operation NEW FOCUS Inc 64X7 rev E fm Page 50 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 52: ...voltage indicator on the back of the laser controller Figure 6 AC power module voltage indicator To change the operating voltage 1 Make sure the laser power is off and the power keyswitch is in the off position 2 Disconnect the AC power cord 3 Open the cover of the power module on the rear panel with a small blade screwdriver or similar tool 120Vac Voltage indicator 64X7 rev E fm Page 51 Tuesday A...

Страница 53: ...put Current Modulation Input Detector Input IEEE 488 RS232 WARNING For continued protection against fire hazard replace only with the same type and rating of fuse Input VAC 90 120 200 250 CAUTION Risk of electric shock do not remove cover Refer servicing to qualified personnel 10 250 VAC 1 2 0 5A 48 66Hz Fuse 2 0 A T 1 0 A T Model Number ________________________________ Serial Number _____________...

Страница 54: ...oper voltage is showing through the module window 9 Reconnect the AC power cord AC Voltage Fuse Rating Slo Blo Fuse 100 V AC 2 0 A 239 002 120 V AC 2 0 A 239 002 220 V AC 1 0 A 239 001 240 V AC 1 0 A 239 001 64X7 rev E fm Page 53 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 55: ...54 Changing the AC Voltage Selection NEW FOCUS Inc 64X7 rev E fm Page 54 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 56: ...ud rate is correct then it may be that the serial connector on the laser and on your computer are both set to transmit on pin 2 see page 63 If this is the case then using a null modem adapter or a null modem cable will solve this problem Wavelength Not Set to the Start Wavelength If the laser is in track mode the Track button should be lit it will not tune to the start scan wavelength Press the Tr...

Страница 57: ...ror codes Switching the laser controller off and then back on can clear some of these errors If the error persists contact New Focus for assistance Error Description E 1 Laser Power button depressed during power up E 4 Start Stop switch depressed during power up E 5 GPIB RS32 switch depressed during power up E 6 Local button depressed during power up E 7 Multiple stuck buttons during power up E 8 ...

Страница 58: ...ere is a conflict between the controller and the tunable laser cavity E 20 Over current protection E 21 Interlock error or over power protection If you are not using the safety interlock feature page 7 check to make sure the jumper on the back of the controller is securely in place E 30 Motor controller error Error Description 64X7 rev E fm Page 57 Tuesday April 3 2001 4 16 PM Artisan Technology G...

Страница 59: ...58 Troubleshooting NEW FOCUS Inc 64X7 rev E fm Page 58 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 60: ...are on duty from 8 00 5 00 PST Monday through Friday excluding holidays to answer questions about the performance or operation of your laser Call us at 408 284 6808 or from the USA or Canada use our toll free number 1 866 NUFOCUS 1 866 683 6287 For quickest response ask for Technical Support and have your model and serial number available The model and serial number can be read from the certificat...

Страница 61: ...60 Customer Service NEW FOCUS Inc 64X7 rev E fm Page 60 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 62: ...er Setpoint dBm 64X7 Made in USA AVOID EXPOSURE INVISIBLE LASER RADIATION EMITTED FROM THIS APERTURE INVISIBLE LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM Power output Wavelength CLASS IIIB LASER PRODUCT Start λ Stop RS 232 GPIB Step Hi Res Tunable Laser Source VIDIA DISCRETE 2 25 57 2 2 25 37 6 19 05 483 9 16 80 426 7 18 35 446 1 5 20 132 1 17 50 444 5 5 56 141 1 64X7 rev E fm Page 61 Tuesday A...

Страница 63: ...62 Appendix A Physical Specifications NEW FOCUS Inc 64X7 rev E fm Page 62 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 64: ...rouble communicating with the laser over the RS 232 port you may need to use a null modem adapter or cable Figure 10 RS 232 Female 9 Pin D Connector 9 8 7 6 5 4 3 2 1 Gnd Rx Tx Pin Name Description 1 Not Connected 2 Tx Data transmitted from laser 3 Rx Data Received by laser 4 Not Connected 5 Ground Digital Ground Line 6 9 Not Connected 64X7 rev E fm Page 63 Tuesday April 3 2001 4 16 PM Artisan Tec...

Страница 65: ...64 Appendix B RS 232 Connector Wiring NEW FOCUS Inc 64X7 rev E fm Page 64 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 66: ...ccuracy 30 pm 30 pm Fiber Type SM PM optional SM PM optional PM Fiber Output Extinction Ratio 15 dB typical 15 dB typical Environmental Operating Conditions 15 to 35 ºC 15 to 35 ºC Environmental Storage Conditions 20 to 70 ºC 20 to 70 ºC Laser Linewidth Jitter 15 MHz s 15 MHz s Power Repeatability 0 08 dB typical 0 08 dB typical Relative Intensity Noise RIN 130 dB Hz typical 130 dB Hz typical Sign...

Страница 67: ...66 Appendix C Specifications NEW FOCUS Inc 64X7 rev E fm Page 66 Tuesday April 3 2001 4 16 PM Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 68: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

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