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Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
ontents Page General remarks 1.1 Safety 1.2 Warranty 1.3 Technical data Operating the PRO8000 (-4) / PRO800 mainframe 2.1 Operating elements on front panel 2.2 Operating elements on rear panel 2.3 Menus of the PRO8000 (-4) / PRO800 2.3.1 After power on 2.3.2 Main menu 2.3.3...
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3.5 Status reporting 3.5.1 Standard event status register (ESR) 3.5.2 Standard event status enable register (ESE) 3.5.3 Status byte register (STB) 3.5.4 Service request enable register (SRE) 3.5.5 Device Error Summary Register (DESR) 3.5.6 Device Error Summary Enable Register (DESE) 3.5.7 Device error condition register (DEC) 3.5.8...
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4.6 Installing and uninstalling modules 4.7 Troubleshooting 4.8 Updating the PRO8000 (-4) / PRO800 firmware 4.8.1 Update procedure Service 5.1 Line voltage setting 5.2 Internal Fuse Replacement Listings 6.1 List of acronyms 6.2 List of figures 6.3 Certifications and compliances 6.4 Addresses Artisan Technology Group - Quality Instrumentation ...
We and our international partners are looking forward to hearing from 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 GmbH.
Packing List 1.1 Packing List 1. 1 Mainframe PRO8000 or PRO8000-4 or PRO800 2. 1 power cord, connector according to ordering country 3. 1 operation manual 4. 1 CD with drivers and software 5. inserted modules if ordered together with the PRO8, blindplates else 1.2 Safety ! Attention ! All statements regarding safety of operation and technical data in...
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Safety All connections to the load have to be made with shielded cables (unless otherwise noted). If a remote control interface is provided a control computer can be connected to the PRO8000 (-4) / PRO800 prior to operation of both units! This precision device is only dispatchable if duly packed into the complete original packaging including the plastic form parts.
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Safety ! Attention ! 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. Mounting several PRO8000 (-4) in a rack, make sure to have 1 height- unit space between the different housings to ensure proper ventila- tion (ventilation slots are beneath the front panel!!)
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Safety ! Attention ! The unit must not be operated in explosion endangered environ- ments. Do not open the unit during operation. Internal adjustments as well as replacement of parts is only to be done by especially trained service personnel. Parts must not be exchanged with the unit switched on.
Warranty 1.3 Warranty Thorlabs GmbH warrants material and production of the PRO8000 (-4) / PRO800 for a period of 24 months starting with the date of shipment. During this warranty period Thorlabs GmbH will see to defaults by repair or by exchange if these are still entitled to warranty.
Technical data 1.4 Technical data (All technical data are valid at 23 ± 5°C and 45 ±15% humidity) Number of slots: PRO8000 PRO8000-4 PRO800 Mains switch Key-operated Remote control via IEEE488 and RS232C Mains supply 100 V, 115 V, 230 V (± 10%) fixed Mains frequency 50 ...
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Technical data Display and operating elements Display 4 x 20 characters alphanumeric vacuum-fluorescence-display. User guiding interactive Keypad 7 micro-switch keys Main tuning knob rotation encoder Acoustic messages internal beeper: short tone as confirmation long tone as warning Protections • Key operated power control switch (ON / STANDBY) •...
Operating elements on front panel 2 Operating the PRO8000 (-4) / PRO800 mainframe 2.1 Operating elements on front panel Status Indicators Tuning Knob Display LOCAL CHANNEL ON/OFF Keyboard Softkeys Mains switch Modules / Module-Slots Figure 1 Front panel view of the PRO8000 Display The alphanumeric vacuum-fluorescence display enables interactive communication with the PRO800 / PRO8000 / PRO8000-4.
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Operating elements on front panel Modules The PRO8000 and PRO8000-4 can house up to 8 plug-in modules, the PRO800 two modules. All in- or outputs are accessible directly at the front of the modules. Keypad With the keypad (gray) and the soft keys (blue) modules can be selected, switched on and off or settings changed.
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Operating elements on front panel Tuning knob With the tuning knob numerical values can be changed. The respective value is selected with the cursor ( ) moved by the blue soft keys. The cursor must point to the left of the value to be changed. Example: 1550.83 A clockwise turn on the tuning knob increases the value and an anti-clockwise turn...
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Operating elements on rear panel 2.2 Operating elements on rear panel INTERFACE SERIAL No.: IEEE 488 LINE 50Hz 430VA FUSE 100V±10% 3.8 A 115V±10% 3.3 A 230V±10% 1.7 A T 2.5 A TRIG IN TRIG OUT DOWNLOAD MAINFRAME INTERFACE CAUTION: DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REPLACE RS 232 FUSE ONLY WITH SPECIFIED TYPE AND RATING.
Menus of the PRO8000 (-4) / PRO800 NOTE The DIP-Switch is for service purpose only! Do not change their setting except for firmware update (->4.8)! For operation both switches must be in the right position! 2.3 Menus of the PRO8000 (-4) / PRO800 2.3.1 After power on After turning on your PRO8000 (-4) / PRO800 the main processor executes a self test program for a few seconds.
Menus of the PRO8000 (-4) / PRO800 2.3.2 Main menu (examples with WDM modules) channel no. cursor wavelength status CH1 1549.31 CH2 1550.92 CH3 1552.52 CHANGE soft keys The first three lines show the contents of the respective menu. In this example "main menu"...
Menus of the PRO8000 (-4) / PRO800 With the cursor in the third line, the next line will appear from below when pressing ($).Vice versa by pressing the key (#). Example in the main menu with 8 lines for the channels: channels 1 and 2 CH3 1549.31 CH4 1550.92...
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Menus of the PRO8000 (-4) / PRO800 The first line marked and hitting “CHANGE” toggles the beeper for occurring errors and input confirmation on and off. In the second line you can select between IEEE488 Interface or terminal mode via RS232 Interface.
Hardware standard RS 232-C 3 Communication with a PC NOTE The following operating elements are still working with the remote control active: The key , the LEDs SEL, ERR and ON and all potentiometers at the modules themselves 3.1 Hardware standard RS 232-C The RS232C interface complies to the IEEE1174 standard for programmable instruments.
Hardware standard RS 232-C If you have a newer version with a 9-pin male connector you need a null modem cable shown in the diagram: The control computer and the PRO8 are connected via 9pin D-SUB null modem cable with the following pinning. PRO8000 2 RXD 2 RXD...
Hardware standard RS 232-C 3.1.1 Interface specification Electrical characteristics EIA RS232C Connector 9pin D-SUB (male) Communication Full duplex Baud rate 1200, 2400, 4800, 9600, 19200, 38400 Start bit 1 bit Stop bit 1 bit Data length 8 bit Parity No parity Handshaking RTS/CTS Receive buffer length...
Hardware standard RS 232-C Local lockout Syntax: &LLO " " Description: Disables the button. Return to LOCAL mode (manual operation) is only possible with the command " >L ". Poll Status-byte &POL Syntax: " " Description: Reads the status byte and clears bit 6 (MSS). This command is used to emulate a service request.
Hardware standard IEEE 488.1 3.2 Hardware standard IEEE 488.1 The IEEE 488 interface of the PRO8000 (-4) / PRO800 is based on the IEEE 488.2 standard. This includes the IEEE 488.1 standard for the hardware settings. There is a standard 24-pin IEEE488 jack on the rear panel. The address of the PRO8000 (-4) / PRO800 must differ from that of other devices using this IEEE488 bus.
Hardware standard IEEE 488.1 3.2.2 Device address and string terminator 3.2.2.1 Address The device address of the PRO8000 (-4) / PRO800 can be changed by pressing in the main menu. The display shows: PRO8000 SETUP Interface: IEEE 488 IEEE Adr.: CHANGE Pressing the key (CHANGE), soft keys ←...
Hardware standard IEEE 488.1 3.2.3 Starting the IEEE488 interface • Connect the PRO8000 (-4) / PRO800 and the PC with shielded IEEE488 cables • Connect the units to the mains • Switch on both units To guarantee safe transmission of data the IEEE488 cable between two units should not be longer than 2 meters and the total cable length should not exceed 20 meters.
These functions have also already been implemented in the LabView®- or LabWindows®-drivers from Thorlabs GmbH. When receiving the IEEE488 bus commands [GET], [LLO], [GTL], [DCL] and [SDC] the PRO8000 (-4) / PRO800 will execute the following functions:...
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Hardware standard IEEE 488.1 [DCL] Device Clear The command [DCL] clears the output queue, the error queue and resets the registers. It affects only the IEEE 488-bus electronic (see 3.6). Normal operation of the modules is not interrupted. NOTE The command [DCL] will set back all IEEE 488 units connected to the bus. [SDC] Selected Device Clear The command [SDC] resembles the command [DCL] but refers only to the IEEE 488...
Software standard IEEE 488.2 3.3 Software standard IEEE 488.2 3.3.1 Nomenclature Program messages (PC ⇒ PRO8000) are written in inverted commas: "*IDN?" [:SLOT 1] Response messages (PRO8000 ⇒ PC) are written in brackets: There is a decimal point 1.234 Parameters are separated with comma: "PLOT 2,0"...
Software standard IEEE 488.2 Example: [:ILD:ACT 7.12345678E-005] measure the actual laser current of a current controller module 3.3.3 Data format According to the IEEE 488.2 specifications all data variables are divided into 4 different data formats: Character response data (<CRD>) Is a single character or a string.
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Software standard IEEE 488.2 Numeric response data Type 3 (<NR3>) 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+306 (Refer to IEE488.2 (8.7.4)) Pro8000 system / page Artisan Technology Group - Quality Instrumentation ...
Software standard IEEE 488.2 3.3.4 Common commands and queries The IEEE 488.2 standard requires a set of commands, that every device must support. These commands are called mandatory commands. All commands can be single or "compound" having a tree structure. Those with compounds are called compound- or group-commands.
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Software standard IEEE 488.2 *CLS Clears all event registers (ESR, DEE1...DEE8) and the error queue. Due to the cleared event registers, also DESR is 0, bit 0 (FIN) of the STB is set. *ESE <NR1> Sets the value for the standard event status enable register (ESE) *ESE?
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Software standard IEEE 488.2 Mainframe commands Special Macro-Commands « ELCH », see chapter 3.7 ":CONFIG:PLUG?" Shows the configuration of the plug-in modules, always 16 values, module type and subtype for every slot, e.g.:. [:CONFIG:PLUG 223,0,191,0,247,0,159,0,107,1,243,2,47,0,0,0] ":SLOT <NR1>" Selects a slot for further programming ":SLOT?"...
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Software standard IEEE 488.2 ":PORT <NR1>" Selects a port of a multidevice controller as MLC8xxx or PDA8xxx. ":SYST:ERR?" [0,"No error"<LF>] Queries the error queue ":SYST:ANSW?" Query the answering format of the PRO8. [:SYST:ANSW FULL] ":SYST:ANSW VALUE" PRO8000 (-4) / PRO800 will send only the requested parameter without designator.
Error messages ":TYPE:SUB?" Queries a possible sub type of a module. E.g.: CW, EA, DIR, LS, SLED for the optical source modules, depending on the modulation type. ":TYPE:TXT?" Module ID in text form. ":TYPE:OPT?" Returns 10 figures (0...255) depending on the installed options (mainly for service purposes) ":TYPE:SN?"...
Error messages 3.4.1 Error queue empty [0,"No errors"] Error queue is empty. 3.4.2 100 ... 199 command error messages [100,"Unknown command"] Possible reason: ":HELLO WORLD". This string sent to the PRO8000 (-4) / 800 was not recognized as valid command. ":ILD:SET? 1.1".
Error messages [304,"Update required"] Possible reason: You are using a very new module together with older firmware. Please update your firmware (refer to 4.8 on page 69). [310,"ELCH set value initialization not complete"] Possible reason: You tried to start a macro function while not all necessary parameters have been set.
Status reporting 3.5 Status reporting The PRO8000 (-4) / PRO800 provides nine 8 bit registers to program various service request functions: ESR, ESE, STB, SRE, BFC, BFE, BFR and DESR, DESE Standard event status register Standard event Status Enable Register Status Byte Register Service Request Enable Register Block Function Condition Register...
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Status reporting Execution error An execution error occurred. Device dependent error A device dependent error (module error) occurred. Query error A error occurred trying to query a value. Request control The PRO8000 (-4) / PRO800 is requesting to become the system controller. Operation complete All started operations have been completed.
Status reporting ELCH finished Block function active Not used Block Function Condition Register :STAT:BFC? Block Function Event Register :STAT:BFR? (Cleared when read) Block Function Enable Register :STAT:BFE <Nr1> :STAT:BFE? Output buffer Register Execution finished or serial poll Service Request Generation Figure 4 The 7 registers ESR, ESE, STB, SRE, BFC, BFR and BFE Pro8000 system / page 39...
Status reporting ( : S T A T: D E C 8 ? ) From slot 8 From slot 7 From slot 6 From slot 5 From slot 4 From slot 3 From slot 2 From slot 1 Device Error Summary Register :STAT:DESR? Device Error Summary...
Status reporting 3.5.2 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 Status Byte Register (STB). The 8 bits of the ESE are connected by logical "AND"...
Status reporting BFR (Block Function Register-Bit) Indicates whether the block functions are active or the “ELCH”-function (ELectrical CHaracterization) has finished its work. FIN (command finished) This bit is high, after a command has finished and all bits of the STB have been set. All bits except bit 6 of the STB can be used to assert a service request (SRQ) Please refer to section 3.5.13 on page 44).
Status reporting 3.5.7 Device error condition register (DEC) The bits of this register show the errors, that occur during operation (operation errors). The bits are active high. The function of the Device-Error_Condition register depends on the module in the corresponding slot. Please refer to the individual operation manual of the plug in module.
Status reporting 3.5.10 Block Function Condition Register (BFC) At present state only bit 0 and 1 of the BFC have any function: Bit 0 indicates if the block function mode is active. Bit 1 shows if the programmed “ELCH”-function has finished its work (=high). 3.5.11 Block Function Event Register (BFR) The bits of this register hold the status changes that occurred during operation.
Status reporting 3.5.15 Hints for setting up control programs NOTE During the test phase of control programs all program messages should be transmitted separately. Each command should be followed by a status request (response message) so that possible errors are read out directly after the command causing them.
System reset 3.6 System reset There are mainly 5 different ways to reset the PRO8000 (-4) / PRO800 or parts of it. All of them behave different. • Power on reset • Reset by device clear • Reset by clear status •...
System reset 3.6.2 Reset by device clear This reset is done by the IEEE bus commands device clear [DCL] or selected device clear [SDC]. • The output queue is deleted, bit 4 (MAV)of the status byte is set to 0. •...
The PRO8000 (-4) / PRO800 “ELCH” – macro functions 3.7 The PRO8000 (-4) / PRO800 “ELCH” – macro functions 3.7.1 What is ELCH? ELCH, the ELectrical CHaracterization of laser components, is a group of embedded macro functions (block commands), allowing easy acceleration of standard measurements, e.g.
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The PRO8000 (-4) / PRO800 “ELCH” – macro functions 3.7.3.1 Start and stop values for the chosen parameter Depending on the module selected, different parameters can be chosen for the automated measurement: The laser diode current ILD, Monitor diode current IMD ( every value that also uses the compound ": ").
The PRO8000 (-4) / PRO800 “ELCH” – macro functions 3.7.3.3 Number of measured values for every step This defines how many different values depending on the chosen variable are to be registered. If e.g. one wants to measure the dependency of laser power from laser current (P-I) on has one dependent value (P) and thus n is set to1.
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The PRO8000 (-4) / PRO800 “ELCH” – macro functions Such an example is shown in the next figure. Here the number of steps exceeds the maximum by two steps. In the subsequent read procedure, the first two values of measurement #1 would be wrong and the last two values of run #3 missing.
The PRO8000 (-4) / PRO800 “ELCH” – macro functions Write sequence Start run #1 Start #1 End run #3 ELCH Run #1 End #1 Start #2 Start run #2 n=x+1 n=x+2 ELCH n=x+3 Run #2 n=x+4 n=x+y End #2 Start #3 Start run #3 n=x+y+1 n=x+y+2...
The PRO8000 (-4) / PRO800 “ELCH” – macro functions 3.7.5 Which values do you want to measure? First select the desired module by means of the " :SLOT n " command. Then enter the value to be measured (e.g. ILD, VLD etc.) with the compound :MEAS "...
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The PRO8000 (-4) / PRO800 “ELCH” – macro functions :ELCH:RUN 1 Reading: :ELCH:RUN? The measurement can also be started in triggered mode, that means you only start a new measurement on the next step by the next query of a measured value: Thus the user can affect measurement speed by the read frequency of measured values, and also can stop the measurement interactively if limits of measured values are reached.
The PRO8000 (-4) / PRO800 “ELCH” – macro functions 3.7.7 Reading the 'ELCH' status There are several possibilities to see whether the 'ELCH' measurement sequence is still running or not: • Query the ELCH status directly: ":ELCH:RUN?" (time consuming, especially if the ELCH sequence is still running) •...
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The PRO8000 (-4) / PRO800 “ELCH” – macro functions With the command: :ELCH:GETALL? You can retrieve all data measured by "ELCH" with a single command. Depending on the number of measurement values, this can take a considerable time. E.g.: 1001 measurement values with 8 readout values results in a 1001 *(1set + 8read) * 17Byte/value + 2 ...3 Byte string terminator = max.
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The PRO8000 (-4) / PRO800 “ELCH” – macro functions The command: :ELCH:RESET? gives you the remaining number of measurement values. :ELCH:RESET 0 resets the internal "ELCH" counters to zero, so that data recorded previously but not read yet are overwritten by the next ELCH run. Pro8000 system / page 57 Artisan Technology Group - Quality Instrumentation ...
ELCH). :LASER ON Switch on the laser Because THORLABS laser controllers use a soft start function to not endanger the laser diode, you should include a 1-2 second break here, to allow the laser current to stabilize! :ELCH:RESET 0...
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The PRO8000 (-4) / PRO800 “ELCH” – macro functions The command: :ELCH:TRIG? Requests the first measurement string: ILD(set) VLD (read) Position 0 7.12500000E-003,7.12345678E-001,3.34673825E-004,1.00453298E-003<LF> :ELCH:TRIG? Request the next measurement string :ELCH:RESET? Shows the number of remaining values Repeat until all values are read or use the single command: :ELCH:GETALL? To retrieve all data measured in a single step.
The PRO8000 (-4) / PRO800 “ELCH” – macro functions 3.7.10 Possible ELCH Error sources Working with ELCH, different sources of errors are possible: & “ 310, ELCH set value initialization not complete ” • The value you selected as independent variable is not allowed for this purpose, e.g.
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The PRO8000 (-4) / PRO800 “ELCH” – macro functions & Errors while using the data read-out commands “ :ELCH:GETALL? ” or “ :ELCH:TRIG? ” e.g.: “ Timeout expired before operation completed ” The number of bytes transferred is equal to e.g.: “...
General care 4 Maintenance and repair 4.1 General care Protect the PRO8 from adverse weather conditions. The PRO8 is not water resistant. ! Attention ! To avoid damage to the PRO8, do not expose it to spray, liquids or solvents! 4.2 Cleaning The unit and the display window can be cleaned with a cloth dampened with water.
Exchanging the mains fuse ! Attention ! To avoid fire hazard only the appropriate fuse for the corresponding line voltage is to be used Execution • Switch off the PRO8000 (-4) / PRO800 and remove the mains cable from the mains jack.
The PRO8000 (-4) / PRO8000-4 / PRO800 does not contain any components to be repaired by the user. If any disturbances in function should occur, please send the respective module or unit to Thorlabs GmbH Germany for repair. Please refer to chapter 6.4, ”Addresses”, on page 79.
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Installing and uninstalling modules Uninstalling a module • Switch the PRO8000 (-4) / PRO800 off and remove the mains cable from the mains jack. The modules are uninstalled from the front of the unit. • Modules of normal width are fixed with two screws, modules with double or triple width with four screws.
Troubleshooting 4.7 Troubleshooting In case that your PRO8000/PRO800 system shows malfunction please first check the following items: ' PRO8000/800 does not work at all (no display on the mainframe): & Mainframe PRO8000 (-4) / PRO800 connected properly to the mains? ♦...
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Troubleshooting ' The installed IEEE 488 interface does not respond to the connected computer & Do you have selected the option “Interface: IEEE488” in the PRO8000 setup menu? ♦ Press “ESC” until you enter the setup menu. Use the ↑ ↓ keys to select the interface line, press the change button and select IEEE488 interface.
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If you don’t find the error source by means of the trouble shooting list or if more modules work erratic please first connect Thorlabs GmbH-Hotline (blueline@thorlabs.com) before sending the whole PRO8000 (-4) / PRO800 system for checkup and repair to Thorlabs -Germany.
Updating the PRO8000 (-4) / PRO800 firmware 4.8 Updating the PRO8000 (-4) / PRO800 firmware Thorlabs GmbH offers the possibility for a regular update of the internal firmware. The latest version is always available in the on our homepage: http://www.thorlabs.com You can download: ♦...
Updating the PRO8000 (-4) / PRO800 firmware 4.8.1 Update procedure 1) Switch off your PRO8000 (-4) / PRO800 2) Set the PRO8000 (-4) / PRO800 rear panel DIP-switch to upload mode: (In normal operation all switches are set to OFF) The older PRO8 version has an DIP-switch with 8 individual switches.
Line voltage setting 5 Service 5.1 Line voltage setting ! Attention ! Dangerous or even lethal voltages inside the unit! Any service procedure like changing of operating voltage must only be done by specially trained service personal! The PRO8000 / PRO8000-4 / PRO800 operate with line voltages of: 100 V ±10%, 115 V ±10% or 230 V ±10%.
Line voltage setting ! Attention ! Before opening the unit it is absolutely necessary to remove the power jack! Even after disconnecting the mains cable, dangerous voltages may be present inside the unit! • Disconnect Power. To avoid electrical shock, first switch off the PRO8 power, and then disconnect the power cord from the mains power.
Internal Fuse Replacement • Put the cover back on the unit and fasten the plastic parts again. • Check whether fuse and replacement fuse are correct and exchange them if necessary. Fuse Type IEC60127-2/V (5 x 20 mm) e.g. settings for PRO8000 •...
List of figures Message AVailable) Master Summary Status Personal Computer Photo Diode ReQuest Service Message Selected Device Clear SELect Service Request Enable Register Service ReQuest STatus Byte Register Soft Ware ThermoElectric Cooler (Peltier Element) TRiGger Transistor-Transistor Logic Wavelength Division Multiplex 6.2 List of figures Figure 1 Front panel view of the PRO8000...
Certifications and compliances 6.3 Certifications and compliances Certifications and compliances Category Standards or description EC Declaration Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility. of Conformity - Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities: EN 61326 EMC requirements for Class A electrical equipment for measurement, control and laboratory use,...
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Certifications and compliances Certifications and compliances Category Standards or description EN 61010-1/A2:1995 Safety requirements for electrical equipment for measurement control and laboratory use. U.S. Nationally UL3111-1 Standard for electrical measuring and Recognized Testing test equipment. Laboratory Listing ANSI/ISA S82.01:1994 Safety standard for electrical and electronic test, measuring, controlling, and related equipment.
6.4 Addresses 6.4 Addresses Thorlabs GmbH Gauss-Strasse 11 D-85757 Karlsfeld Fed. Rep. of Germany Tel.: +49 (0)81 31 / 5956-0 Fax: +49 (0)81 31 / 5956 99 Email: profile@thorlabs.com Internet: http://www.thorlabs.com Technical Hotline: blueline@thorlabs.com Our company is also represented by several distributors and sales offices throughout the world.
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Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
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