Operation Manual
Contents
1. PDPOL CG lt LF gt 2012 Thorlabs 18 Commands 3 2 8 Reading the optical power POPT NOTE Please first select the desired port with the command PORT Reading POPT ACT POPT MIN_R POPT MAX_R Reads the actual optical power POPT ACT lt NR3 gt lt LF gt Reads Pip ADC 0000 POPT MIN lt NR3 gt lt LF gt Reads Pip ADC FFFF POPT MAX R lt NR3 gt lt LF gt 3 2 9 Selecting the measurement range RANGE NOTE Please first select the desired port with the command PORT Programming RANGE RANGE RANGE RANGE RANGE RANGE RANGE Reading 1 2 3 4 5 GH 7 RANGE Selects the 10 nA range Selects the 100 nA range Selects the 1 uA range Selects the 10 yA range Selects the 100 HA range Selects the 1 mA range Selects the 10 mA range Reads the selected range RANGE lt NR1 gt lt LF gt 2012 Thorlabs Commands 19 3 2 10 Querying the module type Reading TYPE 1D Reads the module ID here 107 TYPE ID 107 lt LF gt TYPE SUB Reads module subtype 0 1 channel PDA no Urwp measurement 1 2 channel PDA no Uran measurement 2 1 channel PDA with Urwo measurement 3 2 channel PDA with Urwo measurement TYPE SUB lt NR1 gt lt LF gt 3 2 11 Programming the bias voltage VBIAS Programming VBIAS SET lt NR3 gt Programs the bias voltage VBIAS START lt NR3 gt Programs the bias volt2. Connect the PRO8000 4 PRO800 to the power line take care of the right voltage setting of your mainframe gt Mainframe PRO8000 4 PRO800 turned on Turn on your PRO8000 4 PRO800 with the key mains switch gt Control the fuse at the rear panel of the PRO8000 4 PRO800 mainframe f blown up replace the fuse by the correct type gt refer to your PRO8000 4 PRO800 mainframe operating manual to select the appropriate fuse The PRO8000 4 PRO800 display works but not the module gt Is the module inserted correctly and are all mounting screws tightened Insert the module in the desired slot and tighten all mounting screws properly 4 You don t measure the right photo current gt Is the photo diode connected properly Check the connecting cable gt Is the photo diode poled correctly If not change the polarity with the PDPOL command or in the chan nel menu gt Do you use a bias voltage with the photo diode in photocurrent mode Turn off bias voltage in the channel menu with the PDBIA OFF command or change the polarity of the diode for photo element mode 2012 Thorlabs 26 Troubleshooting gt Is the bias voltage set to 0 in photo element mode Enter an appropriate bias voltage with the command VBIAS SET lt NR3 gt orinthe channel menu gt Is the correct photo diode efficiency n set A W Enter the coefficient in the channel menu or with the
3. EMC EN 61326 EMC requirements for Class A electrical equipment for measurement control and laboratory use including Class A Radiated and Conducted Emissions and Immunity IEC 61000 4 2 Electrostatic Discharge Immunity Performance criterion C IEC 61000 4 3 Radiated RF Electromagnetic Field Immunity Performance criterion B IEC 61000 4 4 Electrical Fast Transient Burst Immunity Performance criterion C IEC 61000 4 5 Power Line Surge Immunity Performance criterion C IEC 61000 4 6 Conducted RF Immunity Performance criterion B IEC 61000 4 11 Voltage Dips and Interruptions Immunity Performance criterion C EN 61000 3 2 AC Power Line Harmonic Emissions Australia Complies with the Radiocommunications Act and demonstrated per EMC Emission New Zealand Declaration of Conformity EMC FCC EMC Compliance standard AS NZS 2064 Industrial Scientific and Medical Equipment 1992 Emissions comply with the Class A Limits of FCC Code of Federal Regulations 47 Part 15 Subpart B E EE Compliance demonstrated using high quality shielded interface cables 2 Compliance demonstrated with the PDA8000 series modules installed in the Thorlabs PRO8x series of mainframes 3 Emissions which exceed the levels required by these standards may occur when this equipment is connected to a test object Minimum Immunity Test require
4. 63 G teborg Sweden Tel 46 31 733 30 00 Fax 46 31 703 40 45 www thorlabs com Email scandinavia thorlabs com China Thorlabs China Room A101 No 100 Lane 2891 South Qiliashan Road Putuo District Shanghai China Tel 86 21 60561122 Fax 86 21 32513480 www thorlabs hk Email chinasales thorlabs com
5. Connect the photodiode and all other components of the complete system the photodiode must be in total darkness e Switch on the PRO8000 4 PRO800 e Select 10 uA range gt Refer to chapter 2 2 7 Setting the measurement range on page 12 e Enter the channel menu to observe the photodiode current e Adjust the offset with the offset potentiometer of the corresponding channel to zero gt Refer to chapter 1 4 Operating elements at the front of the module on page 6 NOTE When using photodiodes with a dark current higher than 1 nA only the ground conductor of the photodiode is to be connected 1 6 Connecting the photodiode Photodiodes can be connected to the BNC jacks of an input with both polarities The outer conductor of the BNC jack is always grounded Both polarity settings of the PDA8000 AG anode ground and CG cathode ground can be used depending on how the photodiode is connected to the BNC jack If one of the connectors of the photodiode itself is connected to ground e g as with many housed laser diodes this ground connector has to be connected to the outer conductor of the BNC jack Only one of the polarity settings of the PDA8000 AG or CG will then be correct If in doubt the correctly selected polarity yields a positive photo current on the display 2012 Thorlabs 8 Functions in the main menu 2 Operating the PDA8000 2 1 Functions in the main menu 2 1 1 Display The main menu sh
6. command CALPD SET lt NR3 gt gt Do you have chosen an appropriate measurement range for your application Use the command RANGE lt NR1 gt or use the channel menu to select a higher or lower sensitivity If this does not help to resolve your trouble please contact Thorlabs Tech Support refer to section 5 6 0 62012 Thorlabs Addresses on page 35 2012 Thorlabs Troubleshooting 27 28 Warranty 5 Appendix 5 1 Warranty Thorlabs warrants material and production of the PDA8000 modules for a period of 24 months starting with the date of shipment During this warranty period Thorlabs will see to defaults by repair or by exchange if these are entitled to warranty For warranty repairs or service the unit must be sent back to Thorlabs Germany or to a place determined by Thorlabs The customer will carry the shipping costs to Thorlabs in case of warranty repairs Thorlabs will carry the shipping costs back to the customer If no warranty repair is applicable the customer also has to carry the costs for back shipment In case of shipment from outside EU duties taxes etc which should arise have to be carried by the customer Thorlabs warrants the hard and software determined by Thorlabs for this unit to operate fault free provided that they are handled according to our requirements However Thorlabs does not warrant a faulty free and uninterrupted operation of the unit of the soft or firmware for spec
7. operated in the mainframe PRO8000 PRO8000 4 or PRO800 All modules must only be operated with duly shielded connection cables Only with written consent from Thorlabs may changes to single components be carried out or components not supplied by Thorlabs be used This precision device is only dispatchable if duly packed into the complete original packaging including the plastic form parts If necessary ask for a replacement package 2012 Thorlabs Safety d Attention d Semiconductor laser modules can deliver up to several 100mW of maybe invisible laser radiation When operated incorrectly this can cause severe damage to your eyes and health Be sure to pay strict attention to the safety recommendations of the appropriate laser safety class This laser safety class is marked on your PRO8000 4 PRO800 plug in module or on your external laser source used d Attention d Mobile telephones cellular phones or other radio transmitters are not to be used within the range of three meters of this unit since the electromagnetic field intensity may then exceed the maximum allowed disturbance values according to EN 50 082 1 2012 Thorlabs 3 4 Features 1 2 Features Utmost precision The single or dual channel photocurrent amplifier modules PDA8000 offer a maximum of precision and sensitivity The polarity of the photodiode is neverthe less free selectable Different operating modes The photodi
8. shall assert an SRQ Bit 0 1 2 3 4 5 and 7 of the STB are related to the according 7 bits of the SRE by logical AND These 7 results are combined by a logical OR so that any hit leads to a logical 1 in bit 6 of the STB and asserts an SRQ 3 4 5 Reading the STB by detecting SRQ If an SRQ is asserted see 3 4 4 bit 6 of the STB is set to logical 1 so that the controller can detect which device asserted the SRQ by auto serial polling 3 4 6 Reading the STB by STB command If the controller does not listen to SRQ s at all the service request can be detected by reading the status byte with the command STB If bit 6 is logical 1 a service request was asserted 3 4 7 Reading the STB by serial poll If the controller does not support auto serial poll the service request can also be detected via manual serial poll If bit 6 is logical 1 a service request was asserted 2012 Thorlabs General remarks 25 4 Service and Maintenance 4 1 General remarks The PDA8000 modules don t need any maintenance by the user In order to ensure best performance accuracy and reliable operation Thorlabs recommends a recalibration cycle of 24 months 4 2 Troubleshooting In case that one module of your PRO8000 4 PRO800 system shows malfunction please check the following items Module does not work at all no display on the mainframe gt Mainframe PRO8000 4 PRO800 connected properly to the mains
9. 00mA for input 2 In the channel menu 2012 Thorlabs Display error messages 13 2 2 8 Measuring the forward voltage option PDA8000 FWD the PDA8000 is used with the FWD option the forward voltage Urwp of the photodiode can be measured at input 1 The measurement current lrwp used for measurement can be selected in the range of 0 01 mA to 10 mA and is set by the parameter Ifwd 5 000mA To measure the forward voltage Urwp select MEASURE Ufwd Then press the soft key CHANGE twice to do a measurement The measured voltage is displayed in the line Ufwd 2 3 Display error messages Possible reasons for error messages when try to change parameters NOT IF BIAS Attempt to change the polarity of the photo diode the measurement range or to start a forward voltage meas urement while a bias voltage is applied POLARITY Attempt to apply a the bias voltage with wrong polarity of the polarity of the photodiode Possible reasons for error messages during forward voltage measurement ACCURACY Insufficient measurement accuracy non linearities or noise OVERFLOW The requested forward current could not be reached even with the max possible voltage Possibly no photo diode connected or bad connection 2012 Thorlabs 14 General information 3 Communication with a control computer 3 1 General information The description of the mainframe of the PRO8000 4 PRO800 includes all instructions
10. 6 gt Refer to IEE488 2 8 7 4 3 2 Commands 3 2 1 Selecting the module slot SLOT lt NR1 gt Selects a slot for further programming lt Nr1 gt 1 8 PRO8000 1 2 PRO800 SLOT Queries the selected slot SLOT lt NR1 gt lt LF gt 3 2 2 Selecting a port PORT Programming PORT 1 Selects port 1 for further commands PORT 2 Selects port 2 for further commands Reading PORT Reads the selected port PORT lt NR1 gt lt LF gt 3 2 3 Calibrating a photo diode CALPD Programming CALPD SET lt NR3 gt Programs the sensitivity n of the monitor diode in A W Reading CALPD SET Reads the sensitivity n of the monitor diode in A W CALPD SET lt NR3 gt lt LF gt CALED MIN Reads the allowed minimum sensitivity n of the monitor diode in A W CALPD MIN lt NR3 gt lt LF gt CALPD MAX Reads the allowed maximum sensitivity n of the monitor diode in A W CALPD MAX lt NR3 gt lt LF gt 2012 Thorlabs 16 Commands 3 2 4 Programming the forward current IFWD NOTE This command always affects port 1 so you do not need to select the port 1 first This command is only available for a PDA8000 with the option PDA8000 FWD Programming IFWD SET lt NR3 gt Programs the forward current of port 1 Reading IFWD SET Reads the forward current of port 1 IFWD SET lt NR3 gt lt LF gt M IFWD MIN Reads the allowed minimum forward current of po
11. EE error messages of an PDA8000 21 3 3 IEEE error messages of an PDA8000 1401 Attempt to switch on BIAS while photo current is negative Possible reason Wrong photo diode polarity gt Refer to chapter 3 2 7 Select the photo diode polarity PDPOL on page 17 1402 Attempt to change polarity while BIAS is Reason The polarity of the photo diode can not be changed with bias on 1403 Attempt to change measurement range while BIAS is Possible reason The measurement range can not be changed with bias on 1404 Attempt to measure Uwa while BIAS is on Possible reason The forward voltage can not be measured with bias on 1405 Ufwd measurement failed accuracy error Possible reason Insufficient measurement accuracy due to non linearities or noise 1406 Ufwd measurement failed voltage overflow Possible reason The requested forward current could not be reached even with the max possible voltage Possibly no photo diode connected or bad connection 2012 Thorlabs 22 Status reporting 3 4 Status reporting The PDA8000 has no own device error registers You can only use the PRO8000 4 PRO800 mainframe status registers shown here Power on not used Command Error Execution Error Device Error Query Error not used Operation complete Standard Event Status Register ESR cleared when read Standard Event Status Register ESE lt Nr1 gt ESE To Statu
12. Operation Manual Thorlabs Instrumentation PRO8000 4 PRO800 Photo current module PDA8000 PD AMPLIFIER SEL ERR CH1 OFFSET CH2 OFFSET 8000 2012 OR LANES Version 3 2 Date 27 03 2012 Copyright 2012 Thorlabs 2012 Thorlabs Contents 1 General description of the PDA8000 1 1 Safety 1 2 Features 1 3 Technical data 1 4 Operating elements at the front of the module 1 5 Presettings 1 5 1 Offset adjustment 1 6 Connecting the photodiode Operating the PDA8000 2 1 Functions in the main menu 2 1 1 Display 2 1 2 Selecting a module 2 2 Functions in the channel menu 2 2 1 Display 2 2 2 Changing parameters 2 2 3 Selecting the polarity of the photo diode 2 2 4 Calibrating the photo diode 2 2 5 Setting the bias voltage 2 2 6 Switching on the bias voltage of the photo diode 2 2 7 Setting the measurement range 2 2 8 Measuring the forward voltage option PDA8000 FWD 2 3 Display error messages 3 Communication with a control computer 3 1 General information 3 1 1 Nomenclature 3 1 2 Data format 3 2 Commands 3 2 1 Selecting the module slot 3 2 2 Selecting a port PORT 3 2 3 Calibrating a photo diode CALPD 3 2 4 Programming the forward current IFWD 3 2 5 Reading the photo diode current IPD 3 2 6 Switch the bias voltage on and off PDBIA 3 2 7 Select the photo diode polarity PDPOL 3 2 8 Reading the optical power POPT 3 2 9 Selecting the measurement range RANGE 3 2 10 Q
13. age start for ELCH VBIAS STOP lt NR3 gt Programs the bias voltage stop for ELCH Reading VBIAS SET Reads the set bias voltage VBIAS SET lt NR3 gt lt LF gt VBIAS MIN Reads the allowed minimum set bias voltage VBIAS MIN lt NR3 gt lt LF gt VBIAS MAX Reads the allowed maximum set bias voltage VBIAS MAX lt NR3 gt lt LF gt VBIAS MIN W Reads Usias DAC 0000 VBIAS MIN W lt NR3 gt lt LF gt VBIAS MAX W n Reads Bias DAC FFFF VBIAS MAX W lt NR3 gt lt LF gt M VBIAS START Reads the start bias voltage for ELCH VBIAS START lt NR3 gt lt LF gt M VBIAS STOP Reads the stop bias voltage for ELCH VBIAS STOP lt NR3 gt lt LF gt 2012 Thorlabs 20 Commands 3 2 12 Reading the forward voltage VFWD NOTE This command always affects port 1 so you do not need to select the port 1 first This command is only available for a PDA8000 with the option PDA8000 FWD Reading M VEFWD ACT Reads the actual laser voltage VEFWD ACT lt NR3 gt lt LF gt VEWD MIN_R Reads Urwp ADC 0000 VFWD MIN lt NR3 gt lt LF gt VEWD MAX_R Reads Urwp ADC FFFF VFWD MAX R lt NR3 gt lt LF gt NOTE Before measuring the forward voltage you should select a suited forward current with the command IFWD If the photo diode is poled wrong you will measure a voltage of abt 10V 2012 Thorlabs IE
14. applies to self contained operational electrical and electronic products this end of life take back service does not refer to other Thorlabs products such as e pure OEM products that means assemblies to be built into a unit by the user e g OEM laser driver cards e components e mechanics and optics e left over parts of units disassembled by the user PCB s housings etc If you wish to return a Thorlabs unit for waste recovery please contact Thorlabs or your nearest dealer for further information 5 2 1 Waste treatment on your own responsibility If you do not return an end of life unit to Thorlabs you must hand it to a company specialized in waste recovery Do not dispose of the unit in a litter bin or at a public waste disposal site 2012 Thorlabs 30 Thorlabs End of Life policy WEEE 5 2 2 Ecological background It is well known that WEEE pollutes the environment by releasing toxic products during decomposition The aim of the European RoHS directive is to reduce the content of toxic substances in electronic products in the future The intent of the WEEE directive is to enforce the recycling of WEEE A controlled recycling of end of live products will thereby avoid negative impacts on the environment Figure 3 Crossed out wheelie bin symbol 2012 Thorlabs 31 List of abbreviations The following abbreviations are used in this manual ADC Analog to Digital Converter AG Anode Groun
15. current range 10 nA 10 mA Resolution 16 bit Polarity of photodiode selectable Setting range of bias voltage can be switched off 0 1V 10V Setting range of the photodiode coefficient n 0 001 5 000 A W Temperature coefficient lt 50 ppm K Input impedance 0Q virtual ground Operating temperature 0 40 C Storage temperature 40 70 C Forward voltage measurement for channel 1 opt PDA8000 FWD Measurement technique 2 wire technique Measurement current 0 01 10 mA 5 Measurement range Urwo 0 2 V Resolution 0 3 mV Accuracy 5 mV Connectors Photodiode BNC Measurement ranges Current range Resolution Accuracy 10 mA 0 1 uA 0 025 f s 1 mA 10 nA 0 025 f s 100 pA 1nA 0 025 f s 10 uA 0 1 nA 0 025 f s 1 uA 10 pA 0 025 f s 100 nA 1 pA 0 250 f s 10 nA 0 1 pA 0 800 f s 3 other ranges on request reduces to 0 1 V for lewo gt 8 MA higher accuracy can be reached by repeated measurements 2012 Thorlabs 6 Operating elements at the front of the module 1 4 Operating elements at the front of the module LED SELect 122 PD LED error AMPLIFIER ve SEL Connector jack input 1 ERR CH1 Offset adjust input 1 ez eech CH2 orFser Connector jack input 2 Offset adjust input 2 PDA 8000 Figure 1 Operating elements on the PDA8000 2 front panel 2012 Thorlabs Presettings 7 1 5 Presettings 1 5 1 Offset adjustment e
16. d CG Cathode Ground CLR CLeaR CR Carriage Return CRD Character Response Data DAC Digital to Analog Converter DC Direct Current DCL Device Clear EAV Error AVailable ELCH ELectrical Characterization EOI End Of Information ESE Standard Event Status Enable register ESR Event Status Register FIN Command FINished GET Group Execute Trigger GTL Go To Local IEEE Institute for Electrical and Electronic Engineering LD Laser Diode LF Line Feed LLO Local Lockout NR1 Numeric Response data of type 1 NR2 Numeric Response data of type 2 NR3 Numeric Response data of type 3 MAV Message AVailable MSS Master Summary Status PC Personal Computer PD Photo Diode RQS ReQuest Service Message SDC Selected Device Clear SEL SELect SRE Service Request Enable Register SRQ Service ReQuest STB STatus Byte Register TRG TRiGger 2012 Thorlabs 32 List of figures 5 3 List of figures Figure 1 Operating elements on the PDA8000 2 front panel 6 Figure 2 The PRO8000 4 PRO800 register ESR ESE STB and SRE 22 Figure 3 Crossed out wheelie bin symbol 30 2012 Thorlabs 33 5 4 Certifications and compliances Certifications and compliances Category Standards or description EC Meets intent of Directive 89 336 EEC for Electromagnetic Compatibility Declaration of Compliance was demonstrated to the following specifications as listed in the Conformity Official Journal of the European Communities
17. eter in the channel menu the respective line is selected with the cursor Example Ug a1 is to be changed CH4 11 0 1234nA 1 CG P1 0 12345nW 2 CG PUbral 0 00 V JL CHANGE 1 Pressing the key CHANGE activates the tuning knob enabling the selected parameter to be changed If the selected parameter is a switch parameter i e the polarity of the photo diode the function of the soft key will change TOGGLE Polarity PD1 Pressing the right soft key will toggle the polarity erminates the input NOTE Some parameters can not be changed as they are measurement values i e the photo diode current or may not be changed during bias voltage switched on In these cases access is denied indicated by a long beep 2012 Thorlabs Functions in the channel menu 11 2 2 3 Selecting the polarity of the photo diode To change the polarity of the photo diode select POL1 for input 1 POL2 for input 2 in the channel menu of the module It then can be changed to the desired polarity gt Refer to chapter 2 2 2 Changing parameters on page 10 NOTE If the selected polarity of the photodiode is wrong the measured photodi ode current will be displayed negative Trying to set a bias voltage or to measure the forward voltage opt PDA8000 FWD will yield an error message 2 2 4 Calibrating the photo diode If the displayed optical power shall be calibrated the correct sensitivity n of the photo diode m
18. hit leads to a logical 1 in bit 5 ESB of the STB As any bit of the STB can assert an SRQ every event bit of the ESR can be used to assert an SRQ 3 4 3 Status byte register STB The bits of this register are showing the status of the PRO8000 4 PRO800 RQS RQS Request service message Shows that this device has asserted SRQ read via serial poll MSS Master summary status Shows that this device requests a service read via STB MAV Message AVailable This bit is high after a query request as a result waits in the output queue to be fetched It is low if the output queue is empty DES Device Error Status This bit is high after a device error occurred Which device errors will set this bit is defined with the EDE EAV Error AVailable This bit is high as long as there are errors in the error queue FIN command FINished This bit is high after a command has finished and all bits of the STB have been set 2012 Thorlabs 24 Status reporting The STB can be read directly with the command STB The content of the STB can not be set The bits are active high All bits except bit 6 of the STB can be used to assert a service request SRQ gt Please refer to 3 4 5 Alternatively the SRQ can be recognized using the command STB Please refer to 3 4 6 or by serial poll Please refer to 3 4 7 3 4 4 Service request enable register SRE The bits of the SRE are used to select which bits of the STB
19. ial applications nor this instruction manual to be error free Thorlabs is not liable for consequential damages Restriction of warranty The warranty mentioned before does not cover errors and defects being the result of improper treatment software or interface not supplied by us modification misuse or operation outside the defined ambient conditions refer to the PRO8000 4 PRO800 mainframe operation manual stated by us or unauthorized maintenance Further claims will not be consented to and will not be acknowledged Thorlabs does explicitly not warrant the usability or the economical use for certain cases of application Thorlabs reserves the right to change this instruction manual or the technical data of the described unit at any time 2012 Thorlabs 29 5 2 Thorlabs End of Life policy WEEE As required by the WEEE Waste Electrical and Electronic Equipment Directive of the European Community and the corresponding national laws Thorlabs offers all end users in the EC the possibility to return end of life units without incurring disposal charges This offer is valid for Thorlabs electrical and electronic equipment e sold after August 13 2005 e marked correspondingly with the crossed out wheelie bin logo see Figure 3 e sold to a company or institute within the EC e currently owned by a company or institute within the EC e still complete not disassembled and not contaminated As the WEEE directive
20. in the User Manual please contact your local Thorlabs dealer or system installer All rights reserved This manual may not be reproduced transmitted or translated to another language either as a whole or in parts without the prior written permission of Thorlabs GmbH Status 2012 Thorlabs GmbH All rights reserved 2012 Thorlabs 5 6 Addresses USA Canada and South America Thorlabs Inc 435 Route 206 Newton NJ 07860 USA Tel 973 579 7227 Fax 973 300 3600 www thorlabs com www thorlabs us West Coast Email sales thorlabs com Support techsupport thorlabs com Europe Thorlabs GmbH Hans Bockler Str 6 85221 Dachau Germany Tel 49 8131 5956 0 Fax 49 8131 5956 99 www thorlabs de Email europe thorlabs com France Thorlabs SAS 109 rue des C tes 78600 Maisons Laffitte France Tel 33 970 444 844 Fax 33 811 38 17 48 www thorlabs com Email sales fr thorlabs com Japan Thorlabs Japan Inc Higashi Ikebukuro Q Building 1st Floor 2 23 2 Toshima ku Tokyo 170 0013 Japan Tel 81 3 5979 8889 Fax 81 3 5979 7285 www thorlabs jp Email sales thorlabs jp 2012 Thorlabs Addresses 35 UK and Ireland Thorlabs Ltd 1 Saint Thomas Place Ely Cambridgeshire CB7 4EX Great Britain Tel 44 1353 654440 Fax 44 1353 654444 www thorlabs com Email sales uk thorlabs com Support techsupport uk thorlabs com Scandinavia Thorlabs Sweden AB M lndalsv gen 3 412
21. may find the name PROFILE PROFILE was the name of the manufacturer before it was acquired by Thorlabs and renamed to Thorlabs Thorlabs This part of the instruction manual contains every specific information on how to operate the photo current module PDA8000 A general description is followed by explanations of how to operate the unit manually You will also find every information about remote control via the IEEE 488 computer interface Attentiond This manual contains WARNINGS and ATTENTION label in this form to indicate dangers for persons or possible damage of equip ment Please read these advises carefully NOTE This manual also contains NOTES and HINTS written in this form 2012 Thorlabs 2 Safety 1 General description of the PDA8000 1 1 Safety d Attention d All statements regarding safety of operation and technical data in this instruction manual will only apply when the unit is operated correctly Before applying power to your PRO8000 4 PRO800 system make sure that the protective conductor of the 3 conductor mains power cord is correctly connected to the protective earth contact of the socket outlet Improper grounding can cause electric shock with damages to your health or even death Modules may only be installed or removed with the mainframe switched off All modules must be fixed with all screws provided for this purpose Modules of the 8000 series must only be
22. ment 2012 Thorlabs 34 Copyright 5 5 Copyright Thorlabs GmbH has taken every possible care in preparing this Operation Manual We however assume no liability for the content completeness or quality of the information contained therein The content of this manual is regularly updated and adapted to reflect the current status of the software We furthermore do not guarantee that this product will function without errors even if the stated specifications are adhered to Under no circumstances can we guarantee that a particular objective can be achieved with the purchase of this product Insofar as permitted under statutory regulations we assume no liability for direct damage indirect damage or damages suffered by third parties resulting from the purchase of this product In no event shall any liability exceed the purchase price of the product Please note that the content of this User Manual is neither part of any previous or existing agreement promise representation or legal relationship nor an alteration or amendment thereof All obligations of Thorlabs GmbH result from the respective contract of sale which also includes the complete and exclusively applicable warranty regulations These contractual warranty regulations are neither extended nor limited by the information contained in this User Manual Should you require further information on this product or encounter specific problems that are not discussed in sufficient detail
23. ode may either be operated photovoltaic or photoconductive by setting a bias voltage of 0 10V 7 measurement ranges For a low noise measurement with 15 bit resolution plus sign there are seven measurement ranges from 10 nA to 10 mA The lowest still detectable current is about 0 1 pA Optical power measurement Since the photocurrent amplifier modules can be calibrated by selecting the photodiode sensitivity n they can be used for precise optical power measurements after calibration Forward voltage measurement optional Optionally it will be possible to measure the forward voltage of the photodiode with a selectable measurement current between 0 01 and 10 mA option PDA8000 FWD Extensive filtering The mains filter installed in the mainframe and the careful shielding of the transformer the microprocessor and the module itself will provide an excellent suppression of noise and ripple Selecting the reference ground Additionally the reference ground for the measurements can be adapted to the measurement setup LabVIEW and LabWindows CVI driver For the PDA8000 Thorlabs supplies LabVIEW and LabWindows CVI drivers for MS Windows 32 Please refer to our homepage for latest driver updates http www thorlabs com 2012 Thorlabs Technical data 5 1 3 Technical data All technical data are valid at 23 5 C and 35 15 humidity Photocurrent amplifier module PDA8000 1 2 General data Photodiode
24. of how to prepare and execute the programming of the system via IEEE 488 or RS232C computer interface Special operation features of a PDA8000 photo current module are described here gt Refer to chapter 2 Operating the PDA8000 starting on page 8 3 1 1 Nomenclature Program messages PC PRO8000 4 are written in inverted commas IDN Response messages PRO8000 4 PC are written in brackets SLOT 1 There is a decimal point 1 234 Parameters are separated with comma PLOT 2 0 Commands are separated with semicolon IDN STB 3 1 2 Data format According to the IEEE 488 2 specifications all data variables are divided into 4 different data formats Character response data lt CRD gt Is a single character or a string Examples A or ABGRS or A125TGorA1 23456A gt Refer to IEEE488 2 8 7 1 Numeric response data Type 1 lt NR1 gt Is a numerical value with sign in integer notation Examples 1 or 1 or 22 or 14356789432 gt Refer to IEEE488 2 8 7 2 Numeric response data Type 2 lt NR2 gt Is a numerical value with or without sign in floating point notation without exponent Examples 1 1 or 1 1 or 22 1 or 14356 789432 gt Refer to IEE488 2 8 7 3 2012 Thorlabs Commands 15 Numeric response data Type 3 lt NR3 gt Is a numerical value with or without sign in floating point notation with exponent with sign Examples 1 1E 1 or 1 1E 1 or 22 1E 1 or 143 56789432E 30
25. ows the channel number and the photo diode current measured at input 1 Channel no Cursor Photo current Ni CH14I1 0 1234 nA CH2 CH3 1t 2 1 2 Selecting a module Select a module for further input by setting the cursor to the channel number of the desired module Use the soft key 1 and JE CH44 CHAHHEL Pressing E will lead to the channel menu 2012 Thorlabs Functions in the channel menu 9 2 2 Functions in the channel menu CHAHHEL By pressing the key L___J you enter the channel menu Pressing again gt will lead back to the main menu 2 2 1 Display In the channel menu all parameters of the selected module are shown channel no cursor operating parameters CH4 pI1 0 1234nA 1 CG Bra P1 0 12345nW Usral 0 00 V JE CHANGE monitor diode polarity of input 1 indicator for applied bias voltage monitor diode polarity of input 2 Only three parameters can be shown at a time so there is a scroll function All parameters are sorted in a virtual list which can be run through with the cursor 11 0 1234nA ser P1 0 1234nW Usra2 0 00 V Usral 0 00 V C2 1 12345A W C1 1 12345A W BIA2 OFF RNG2 10 00nA POL2 CG you use the PDA8000 FWD Ifwd 1 1234mA Ifwd 3 000mA Ufwd 1 234 V Ufwd 1 551 V MEASURE Ifwd MEASURE Ifwd I2 0 1234nA P2 0 1234nW 2012 Thorlabs 10 Functions in the channel menu 2 2 2 Changing parameters To set or change a numerical param
26. rt 1 IFWD MAX lt NR3 gt lt LF gt IFWD MAX Reads the allowed maximum forward current of port 1 IFWD MIN lt NR3 gt lt LF gt 3 2 5 Reading the photo diode current IPD NOTE Programming IPD MEAS lt NR1 gt Programs the photo current to be a measurement value for ELCH on output string position lt NR1 gt 1 8 Reading IPD ACT Reads the actual photo diode current IPD ACT lt NR3 gt lt LF gt IPD MIN_R Reads lpp ADC 0000 IPD MIN R lt NR3 gt IPD MAX R Reads lpp ADC FFFF IPD MAX R lt NR3 gt 2012 Thorlabs Commands 17 3 2 6 Switch the bias voltage on and off PDBIA NOTE Please first select the desired port with the command PORT d Attention d Before switching the bias voltage on make sure that the photodiode is poled correctly inverse direction If the photodiode is forward biased with a voltage a current will flow through it that could damage or even destroy it Programming PDBIA ON Switches the bias voltage on PDBIA OFF Switches the bias voltage off Reading PDBIA Reads the bias voltage switch PDBIA ON lt LF gt PDBIA OFF lt LF gt 3 2 7 Select the photo diode polarity PDPOL NOTE Please first select the desired port with the command PORT Programming PDPOL AG Selects anode on ground PDPOL CG Selects cathode on ground Reading M PDPOL Reads the monitor diode polarity PDPOL AG lt LF gt
27. s SE Register SB Bit 5 E Output buffer From Device Error Registers ERROR Queue E Execution finished ERE EE Status Byte Register STB or serial poll Service a Request SEN 8 Generation La JI a Service Request CELL eo Register SRE lt Nr1 gt SRE Figure 2 The PRO8000 4 PRO800 register ESR ESE STB and SRE 2012 Thorlabs Status reporting 23 3 4 1 Standard event status register ESR The bits of this register represent the following standard events Power on This event bit indicates that an off to on transition has occurred in the power supply So it is high after turning on the device for the first time User request Not used Command error command error occurred Execution error An execution error occurred Device dependent error A device dependent error occurred Query error A query error occurred Request control Not used Operation complete Can be set with OPC The ESR can be read directly with the command ESR This read command clears the ESR The content of the ESR can not be set The bits are active high 3 4 2 Standard event status enable register ESE The bits of the ESE are used to select which bits of the ESR shall influence bit 5 ESB of the STB The 8 bits of the ESE are combined with the according 8 bits of the ESR via a wired AND function These 8 results are combined with a logical OR function so that any
28. uerying the module type 2012 Thorlabs ORLA 5 Page O 00 00 M NN OO OF BR MM mm eh A ech sch ech A A A Ah A D OO MN d D OO Om OO OO P SS PS Go NON CO ORILA ES 3 2 11 Programming the bias voltage VBIAS 19 3 2 12 Reading the forward voltage VFWD 20 3 3 IEEE error messages of an PDA8000 21 3 4 Status reporting 22 3 4 1 Standard event status register ESR 23 3 4 2 Standard event status enable register ESE 23 3 4 3 Status byte register STB 23 3 4 4 Service request enable register SRE 24 3 4 5 Reading the STB by detecting SRQ 24 3 4 6 Reading the STB by STB command 24 3 4 7 Reading the STB by serial poll 24 4 Service and Maintenance 25 4 1 General remarks 25 4 2 Troubleshooting 25 5 Appendix 28 5 1 Warranty 28 5 2 Thorlabs End of Life policy WEEE 29 5 2 1 Waste treatment on your own responsibility 29 5 2 2 Ecological background 30 List of abbreviations 31 5 3 List of figures 32 5 4 Certifications and compliances 33 5 5 Copyright 34 5 6 Addresses 35 2012 Thorlabs ai So We aim to develop and produce the best solution for your application in the field of optical measurement technique To help us to come up to your expectations and develop our products permanently we need your ideas and suggestions Therefore please let us know about possible criticism or ideas We and our international partners are looking forward to hearing from you In the displays shown by the PRO8 you
29. ust be entered for example n is 0 5 A W this can be done in the channel menu entering the value C1 0 5000A W for input 1 C2 0 5000A W for input 2 The default value of n is 0 1000 A W It is valid without specific confirmation 2 2 5 Setting the bias voltage Each input can operate with a bias voltage in the range of 0 10 V If for example the photo diode shall work with 3 000 V bias voltage this can be entered in the channel menu Usral 3 00 V for input 1 Usra2 3 00 V for input 2 gt Refer to chapter 2 2 2 Changing parameters on page 10 2012 Thorlabs 12 Functions in the channel menu 2 2 6 Switching on the bias voltage of the photo diode d Attention d Before switching the bias voltage on make sure that the photodiode is poled correctly inverse direction If the photodiode is forward biased with a voltage a current will flow through it that could damage or even destroy it The bias voltage is switched on by setting the parameter BIA1 ON for input 1 BIA2 ON for input 2 in the channel menu of the module 2 2 7 Setting the measurement range Each input offers 7 measurement ranges Measurement range Resolution Accuracy 0 1 uA 0 025 f s 10 nA 0 025 f s 1 nA 0 025 f s 0 1 nA 0 025 f s 10 pA 0 025 f s 1pA 0 250 f s 0 1 pA 0 800 f s To set for example the measurement range to 1 mA full scale enter RNG1 1 000mA for input 1 RNG2 1 0
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