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8

Functions in the main menu

________________________________________________________________________________

______________________________________________________________________________________________________

© 2012 Thorlabs

2 Operating the PDA8000

2.1 Functions in the main menu

2.1.1 Display

The main menu shows the channel number and the photo diode current measured at
input 1

Channel no.

Cursor

Photo-current

CH1 I1= - 0.1234 nA
CH2
CH3

TUNE

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

and

.

CH4

Pressing

will lead to the channel menu

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Содержание PDA8000-1

Страница 1: ...__________________________________ Operation Manual Thorlabs Instrumentation PRO8000 4 PRO800 Photo current module PDA8000 2012 ...

Страница 2: ...________________________________________ ______________________________________________________________________________________________________ 2012 Thorlabs Version 3 2 Date 27 03 2012 Copyright 2012 Thorlabs ...

Страница 3: ...photo diode 11 2 2 4 Calibrating the photo diode 11 2 2 5 Setting the bias voltage 11 2 2 6 Switching on the bias voltage of the photo diode 12 2 2 7 Setting the measurement range 12 2 2 8 Measuring the forward voltage option PDA8000 FWD 13 2 3 Display error messages 13 3 Communication with a control computer 14 3 1 General information 14 3 1 1 Nomenclature 14 3 1 2 Data format 14 3 2 Commands 15 ...

Страница 4: ...nt 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...

Страница 5: ...rom you In the displays shown by the PRO8 you 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 a...

Страница 6: ...ected 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 operated in the mainframe PRO8000 PRO8000 4 or PRO800 All modules must onl...

Страница 7: ...rrectly 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 Attention Mobile telephones cellular phones or other radio transmitters are not to be used within the range of three meters of ...

Страница 8: ... pA Optical power measurement Since the photocurrent amplifier modules can be calibrated by selecting the photodiode sensitivity 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 ...

Страница 9: ... of the photodiode coefficient 0 001 5 000 A W Temperature coefficient 50 ppm K Input impedance 0 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 UFWD 0 2 V2 Resolution 0 3 mV Accuracy 5 mV Connectors Photodiode BNC Measurement ...

Страница 10: ...____________________________________________________________________________________________________ 2012 Thorlabs 1 4 Operating elements at the front of the module LED SELect LED error Connector jack input 1 Offset adjust input 1 Connector jack input 2 Offset adjust input 2 Figure 1 Operating elements on the PDA8000 2 front panel ...

Страница 11: ...g 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...

Страница 12: ...2 Thorlabs 2 Operating the PDA8000 2 1 Functions in the main menu 2 1 1 Display The main menu shows the channel number and the photo diode current measured at input 1 Channel no Cursor Photo current CH1 I1 0 1234 nA CH2 CH3 TUNE 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 and CH4 Pressing will lead to...

Страница 13: ...shown channel no cursor operating parameters CH4 I1 0 1234nA 1 CG BIA P1 0 12345nW 2 CG U BIA1 0 00 V 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 I1 0 1234nA P1 0 1234nW UBIA...

Страница 14: ...d CH4 I1 0 1234nA 1 CG P1 0 12345nW 2 CG UBIA1 0 00 V CHANGE 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 Pressing terminates the input NOTE Some param...

Страница 15: ...l 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 of the photo diode must be entered If for example 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 i...

Страница 16: ...ward 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 10 mA 0 1 A 0 025 f s 1 mA 10 nA 0 025 f s 100 A 1 nA 0 025 f...

Страница 17: ...WD 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 ...

Страница 18: ...rs may be written in small or capital letters 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 di...

Страница 19: ... Selects a slot for further programming Nr1 1 8 PRO8000 1 2 PRO800 SLOT Queries the selected slot SLOT NR1 LF 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 NR1 LF 3 2 3 Calibrating a photo diode CALPD Programming CALPD SET NR3 Programs the sensitivity of the monitor diode in A ...

Страница 20: ...ograms the forward current of port 1 Reading IFWD SET Reads the forward current of port 1 IFWD SET NR3 LF IFWD MIN Reads the allowed minimum forward current of port 1 IFWD MAX NR3 LF IFWD MAX Reads the allowed maximum forward current of port 1 IFWD MIN NR3 LF 3 2 5 Reading the photo diode current IPD NOTE Please first select the desired port with the command PORT Programming IPD MEAS NR1 Programs ...

Страница 21: ...e 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 LF PDBIA OFF LF 3 2 7 Select the photo diode polarity PDPOL NOTE Please first select the...

Страница 22: ...s the actual optical power POPT ACT NR3 LF POPT MIN_R Reads PLD ADC 0000 POPT MIN_R NR3 LF POPT MAX_R Reads PLD ADC FFFF POPT MAX_R NR3 LF 3 2 9 Selecting the measurement range RANGE NOTE Please first select the desired port with the command PORT Programming RANGE 1 Selects the 10 nA range RANGE 2 Selects the 100 nA range RANGE 3 Selects the 1 μA range RANGE 4 Selects the 10 μA range RANGE 5 Selec...

Страница 23: ...asurement TYPE SUB NR1 LF 3 2 11 Programming the bias voltage VBIAS Programming VBIAS SET NR3 Programs the bias voltage VBIAS START NR3 Programs the bias voltage start for ELCH VBIAS STOP NR3 Programs the bias voltage stop for ELCH Reading VBIAS SET Reads the set bias voltage VBIAS SET NR3 LF VBIAS MIN Reads the allowed minimum set bias voltage VBIAS MIN NR3 LF VBIAS MAX Reads the allowed maximum ...

Страница 24: ... 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 VFWD ACT Reads the actual laser voltage VFWD ACT NR3 LF VFWD MIN_R Reads UFWD ADC 0000 VFWD MIN_R NR3 LF VFWD MAX_R Reads UFWD ADC FFFF VFWD MAX_R NR3 LF NOTE Before measuring the forward voltage you should select a suited forward current with the command I...

Страница 25: ...ange polarity while BIAS is on Reason The polarity of the photo diode can not be changed with bias on 1403 Attempt to change measurement range while BIAS is on Possible reason The measurement range can not be changed with bias on 1404 Attempt to measure Ufwd while BIAS is on Possible reason The forward voltage can not be measured with bias on 1405 Ufwd measurement failed accuracy error Possible re...

Страница 26: ...____________________________________________________________ 2012 Thorlabs 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 Figure 2 The PRO8000 4 PRO800 register ESR ESE STB and SRE Output buffer ERROR Queue or serial poll Service Request Generation ...

Страница 27: ...f 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 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 ...

Страница 28: ...hall 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 t...

Страница 29: ...ight voltage setting of your mainframe Mainframe PRO8000 4 PRO800 turned on Turn on your PRO8000 4 PRO800 with the key mains switch Control the fuse at the rear panel of the PRO8000 4 PRO800 mainframe If blown up replace the fuse by the correct type refer to your PRO8000 4 PRO800 mainframe operating manual to select the appropriate fuse The PRO8000 4 PRO800 display works but not the module Is the ...

Страница 30: ...er an appropriate bias voltage with the command VBIAS SET NR3 or in the channel menu Is the correct photo diode efficiency set A W Enter the coefficient in the channel menu or with the command CALPD SET NR3 Do you have chosen an appropriate measurement range for your application Use the command RANGE NR1 or use the channel menu to select a higher or lower sensitivity If this does not help to resol...

Страница 31: ... ________________________________________________________________________________ ______________________________________________________________________________________________________ 2012 Thorlabs Addresses on page 35 ...

Страница 32: ... 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 special applications nor this instruction manual to be error free...

Страница 33: ...r institute within the EC currently owned by a company or institute within the EC still complete not disassembled and not contaminated As the WEEE directive 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 pure OEM products that means assemblies to be built into a unit by the user e g OEM l...

Страница 34: ...ical 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 env...

Страница 35: ...ear 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 Re...

Страница 36: ... ______________________________________________________________________________________________________ 2012 Thorlabs 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 ...

Страница 37: ...mmunity 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 New Zealand Declaration of Con...

Страница 38: ...amage 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 resp...

Страница 39: ...contact for our most up to date contact information USA Canada and South America Thorlabs Inc sales thorlabs com techsupport thorlabs com Europe Thorlabs GmbH europe thorlabs com France Thorlabs SAS sales fr thorlabs com Japan Thorlabs Japan Inc sales thorlabs jp UK and Ireland Thorlabs Ltd sales uk thorlabs com techsupport uk thorlabs com Scandinavia Thorlabs Sweden AB scandinavia thorlabs com Br...

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