Process Spectrometer Versa Ps 2000

Transcript

Operating Instructions Process Spectrometer Versa PS 2000 JETI Technische Instrumente GmbH Tatzendpromenade 2 D-07745 Jena Tel. +49-3641-225 680 Fax. +49-3641-225 681 E-mail: [email protected] Internet: www.jeti.com Operating Instructions Versa PS 2000 Document Version 1.3 Table of Contents 1. 2. 3. 4. 5. 6. 7. Introduction Security Recommendations Installation of Hardware 3.1. Hardware Trigger 3.2. RS 232 interface 3.3. RS 422/ 485 interface 3.4. LAN interface Measurement Instructions 4.1. Trigger assignment Software JETI ProSpekT 5.1. Installation 5.2. JETI ProSpekT Specification CE Declaration Copyright © 2014 JETI Technische Instrumente GmbH 3 4 5 6 7 7 7 11 11 12 12 12 19 21 2 Operating Instructions Versa PS 2000 Document Version 1.3 1. Introduction This operating instruction describes the features of the process spectrometer Versa PS 2000 and the ProSpekT software utility for initial set-up and demonstration. Versa PS 2000 is an easy to use spectrometer for various applications. Measurements can be released by SCPI commands explicitly, by a user program (e.g. VersaSpec) or by triggered events like signals from position sensors or a rotary encoder. The device consists of a spectrometer with read out electronics and the power supply. Optionally it can be equipped with a light source. The spectrometer unit contains a 50 µm slit, a grating with linear dispersion of 25 nm/mm and an array detector. The device has a USB port, a RS232 port and alternatively a LAN/PoE or a RS422/485 port and a trigger input. PC requirements: • Pentium 2 or higher, at least 32 MB RAM • Graphic resolution: at least 640x480, 256 colors • Windows XP™ / Windows Vista™/ Windows 7™/ Windows 8™ The process spectrometer package includes: • • • • • Basic device process spectrometer Operating instructions and firmware commands on CD-ROM CD-ROM with PC software ProSpekT and VersaSpec USB cable Power supply cable Copyright © 2014 JETI Technische Instrumente GmbH 3 Operating Instructions Versa PS 2000 Document Version 1.3 2. Security Recommendations Before any operations, please read the following safety precautions to avoid any possible bodily injury and prevent the device from damage. In order to avoid any contingent danger, this device is only to be used within the ranges specified. • • • • • • • • Use only the proper power line. Use the proper fuse. Only the fuse complying with the specified type and nominal value for this product can be used. The operation of the device has to be done only on power supply sockets with standard protective conductor connection and the appropriate power supply line. Do not open the equipment or touch any of its electronic circuitry. Always unplug the power supply of the device before cleaning. Avoid using liquid cleaners. Never spill liquid of any kind into the device. If an abuse or an accident occurred as drop or handling, contact JETI. Copyright © 2014 JETI Technische Instrumente GmbH 4 Operating Instructions Versa PS 2000 Document Version 1.3 3. Installation of Hardware Remark: Please note, that you must have administrator privileges to install the device driver! Connect the device to the mains supply and to the USB interface or to the RS232 port using a serial cable and switch it on. Alternatively the LAN or RS 422/485 interfaces can be used. m ea suring indication fu nction indic ation S MA 9 05 inp ut LAN / PoE c onnecto r tri gge r input m icro USB con nec to r RS232 por t RS422/485 por t on/ o ff switch Fig. 1: Front side of Versa PS 2000 The driver installation for the USB interface is done automatically. In case of an occurring problem it is necessary to carry out the installation manually. The respective FTDI driver can be found on the CD. USB and LAN use a transfer rate of 921 600 Bd and the serial ports (RS232/ 422)) use 115 200 Bd. The default transfer rate is 115 200 Bd. It can be changed with a terminal program and the commands *para:baud arg (arg = 115 for 115 200 Bd, arg = 921 for 921 600 Bd) *para:save (see Firmware Commands) Remark: The baudrate can be increased via each interface, but reduced only via USB or LAN. The optical measuring signal will be connected with a SMA terminated fibre optic cable. The preferred core diameter is 200 µm (a thinner one would lead to lost of light power, a thicker one would lead to lost of optical resolution). Please do not use another connector than SMA cable to avoid any damage of the spectrometer slit! Copyright © 2014 JETI Technische Instrumente GmbH 5 19 Operating Instructions Versa PS 2000 Document Version 1.3 3.1. Hardware Trigger The pin numeration of the hardware trigger input is shown in the following figure. 5 1 6 9 Fig. 2: Trigger input (D-Sub 9 female) It is possible to use an incremental rotary encoder (IRE) for triggering or a three input trigger for dark, reference and transmission/ reflection measurement. The next table shows the pin assignment of the trigger input. Pin Signal L/H – Level Active Slope 1 2 Ref GND Ref GND - - 3 Ref GND - - 4 Ref GND - - 5 NC - - 6 Reserve (reserved for future use) 0 … 1V / 3 … 24 V 7 IRE: no function Three input trigger: transmission measurement 0 … 1V / 3 … 24 V IRE: Position 0 Three input trigger: reference measurement 0 … 1V / 3 … 24 V IRE: Clock (CLK) Three input trigger: dark measurement 0 … 1V / 3 … 24 V 8 9 Tab. 3: Trigger input pin assignment Remark: Functions of pins 7, 8 and 9 depend on the trigger settings. They can be changed by the firmware commands *para:trgconf arg (arg = 0...5, see firmware instructions) *para:save Copyright © 2014 JETI Technische Instrumente GmbH 6 Operating Instructions Versa PS 2000 Document Version 1.3 3.2. RS 232 interface The pin numeration and the pin assignment of the RS 232 interface are as follows: 1 5 9 Fig. 4: RS232 port (D-Sub 9 male) Pin Signal 2 RxD + 3 TxD + 5 GND Tab. 5: RS232 pin assignment 3.3. RS 422/ 485 interface Versa PS 2000 is alternatively equipped with RS 422/ 485 or LAN interface. The pin numeration and the pin assignment of RS 422/ 485 are as follows: 1 9 Fig. 6: RS422/485 port (D-Sub 9 female) Pin 1 6 3 8 5 Signal TxD + TxD – RxD + RxD – GND Tab. 7: RS422/485 pin assignment 3.4. LAN interface If the RS 422/ 485 interface it not equipped, you can use the LAN interface. Versa PS 2000 and the controlling PC have to use the same network address space to communicate via a network connection. The default network setting of the device is set to DHCP (obtain network settings automatically). If a DHCP server is running in your network the device will obtain an IP address from within the local network address space, and no further steps are required. Copyright © 2014 JETI Technische Instrumente GmbH 7 Operating Instructions Versa PS 2000 Document Version 1.3 If no DHCP server is available (e.g. direct connection to a PC) or you want to give the device a fixed IP address for some other reasons, the network setting of the device has to be changed by a tool called "Digi Device Discovery", which is available on the installation CD and installs the RealPort Driver (see below). Please note that you must have administrator privileges! • Connect Versa PS 2000 to the power supply and to the LAN (1:1 as well as crossed cables can be used) • Go to directory 'Tools\Device Discovery' on the installation CD and run 'dgdiscvr.bat' • The tool will search all devices in your LAN and display them on the screen Fig. 8: Digi Device Discovery screen with two attached devices their MAC address) (devices are distinguished by • Devices, which are not configured properly to be controlled via your LAN, are marked with a red exclamation mark • Right-click on the device to configure and select 'Configure network settings' from the menu • A window will appear where you can configure the network setting of the device • After clicking on 'Save' a message appears that the device must be restarted • If no more red exclamation mark is visible, the device is configured properly to work in your LAN Remark: The IP address of a PC can be found using cmd.exe in the command line and the command ipconfig. Copyright © 2014 JETI Technische Instrumente GmbH 8 Operating Instructions Versa PS 2000 Document Version 1.3 Installation of the RealPort Driver Please note that you must have administrator privileges to install the driver! If you want to run JETI ProSpekT software controlling via LAN network connection, a special driver has to be installed. This so-called 'RealPort Driver' provides a virtual serial COM-port, which JETI ProSpekT and also serial terminal programs can use to communicate. This chapter describes the installation procedure of the RealPort driver. • Go to directory 'RealPort Driver' on the installation CD and run 'setup.exe' • The following window appears or • Select 'Add a New Device' and click on 'Next' • A list with the found network devices will appear. Please select the device a RealPort driver shall be installed and click 'Next'. Copyright © 2014 JETI Technische Instrumente GmbH 9 Operating Instructions Versa PS 2000 Document Version 1.3 • If the desired device does not appear in the list, you have to check the network settings of the device. • Don't change the suggested settings and click 'Finish' to start the installation. • In a little while a dialog box should inform you that the driver was successfully installed. Copyright © 2014 JETI Technische Instrumente GmbH 10 Operating Instructions Versa PS 2000 Document Version 1.3 4. Measurement Instructions The process spectrometer Versa PS 2000 can be controlled by a hardware trigger. 4.1. Trigger assignment Trigger output number (see below) 0 3 1 2 Measuring mode none dark reference transmission Line interpolated output after trigger (binary output) Byte 1 2 3 5-6 7-8 9 10-11 Value cc xx yy xx yy ss xx yy Definition command ok measurement complete trigger output number (see above) wav begin (start wavelength) wav end (end wavelength) wav step (wavelength step width) Measured spectral value at wav begin : : : 10+n*2 xx yy 12+n*2 xx yy Measured spectral value at wav end Checksum wav end −wav begin n=1+ wav step The included software JETI ProSpekT displays the measured spectrum. Copyright © 2014 JETI Technische Instrumente GmbH 11 Operating Instructions Versa PS 2000 Document Version 1.3 5. Software JETI ProSpekT The process spectrometer Versa PS 2000 is delivered with the JETI ProSpekT software. Using this software it is possible to program three triggering positions of a rotary encoder for dark, reference and transmission measurements correspondingly. The measuring mode of the software is used for visualizing the spectra as they are delivered by Versa PS 2000. 5.1. Installation Please note that you must have administrator privileges to install the software! Execute the following steps: • Start Windows XP™/ Vista™/ Windows 7™/ Windows 8™ • Insert the CD in the CD drive of the PC and open it • Start setup.exe from the folder \Software\JETI ProSpekT and follow the instructions. 5.2. JETI ProSpekT • Start the program and click Connect. Versa PS 2000 will be found and connection with it will be established automatically. • First rotate the encoder one full turn to let the firmware know the index position. The firmware of the Versa PS 2000 assumes, that the rotary encoder is rotated always in the same direction. A current position is detected as follows: the firmware receives an index position pulse (which comes every full turn) and sets the position Copyright © 2014 JETI Technische Instrumente GmbH 12 Operating Instructions Versa PS 2000 Document Version 1.3 counter to 0. Then the counter is incremented every time an impulse from the encoder comes, independently of in which direction it is rotated. • The measurement of the dark spectrum is only signalized by the „Dark“-indicator and not displayed in the graph. Measured reference and transmission spectra are also indicated, but can be displayed in the graph using the selected wavelength range („Start of spectrum“ to „End of spectrum“). The current measurement is indicated with changing of the background of the radio buttons. At the same time the reference and the transmission radio buttons are clickable, and if any of them is unchecked, the corresponding spectrum is not displayed. Summing up: the colored background of a radio button indicates a current measurement; a dot indicates, if the corresponding spectrum is displayed. • In the first picture below: the current measurement is reference; reference and transmission spectra will be displayed. Copyright © 2014 JETI Technische Instrumente GmbH 13 Operating Instructions Versa PS 2000 Document Version 1.3 Copyright © 2014 JETI Technische Instrumente GmbH 14 Operating Instructions Versa PS 2000 Document Version 1.3 Saving to Excel The FILE-menu contains the “Save in Excel” submenu, which contains some commands for saving into Excel of the measured spectra. The saving can be started with “Start” menu item (one will be asked to choose the path and the file name for saving), and ended with “Stop”. There is a protection against losing of connection or closing the program: if such an event happens, the data will be saved. Nevertheless, if the program crashes because of some Windows system error, the data will be lost. Generally, all measurements are saved into a temporary file and only after the “Save in Excel”-mode is switched off, are transferred to an Excel-file. It is not necessary, that Excel is installed on the computer. • Under FILE->Save In Excel->Setup Output one can choose, what kinds of spectra are to be saved: only reference, only transmission or both. Copyright © 2014 JETI Technische Instrumente GmbH 15 Operating Instructions Versa PS 2000 Document Version 1.3 • Anyway, during saving to Excel a separate sheet for every kind of measurement is created. If the maximal number of columns is reached, the next sheet is created. The sheets get corresponding names: Reference1, Reference2, etc. and Transmission1, Transmission2, etc. • To set the positions of the rotary encoder, open the PMGR-menu: • Turn: The 'Turn' input field is used for setting of the total turn counts. • Current position: 'Current position' displays the counted pulses from the index position pulse. • Turns [rpm]: Shows the rotational speed in rotations per minute • Dark/ Reference/ Transmission position: 'Dark position', 'Reference position' and 'Transmission position' display the set positions. These can be deleted (set to 0) or set to the current position using corresponding buttons on the right. After clicking 'Close' button the software switches to encoder triggered measuring mode. Copyright © 2014 JETI Technische Instrumente GmbH 16 Operating Instructions Versa PS 2000 Document Version 1.3 LIGHT-menu The light-menu allows the user to control additional lamps, if Versa PS 2000 is equipped with them. When the 'Light Source Controls'-panel is active, the encoder triggered measuring mode is off, i.e. the device doesn't receive any spectra. Only after closing the panel, the encoder triggered measuring mode is switched on. The picture above shows the control combination, where both lamps are off. The halogen and the deuterium lamp (on/off) one can control separately by the halogendeuterium lamp. The shutter-check-box is only for self-control; its purpose is to make it possible to open the shutter manually and check, if the lamps burn. During the measurement the shutter acts normally automatically. The xenon flash lamp has two adjustable parameters: flash interval and pulse length. The number of flash pulses that are initiated during one measurement depends on the integration time. For example, if flash lamp interval is 10 ms and the integration time is 9 ms, one flash pulse comes. If integration time is 10 ms, 2 pulses come. If integration time is 19 ms, still 2 pulses come. If integration time is 20 ms, 3 pulses come. And so on. The pulse length is rather an internal flash-lamp parameter, that doesn't have much influence on the integral light energy. One should just try some values noticing, that a typical value would be somewhere between 10 and 20 µs. Display-menu Under display->clear one can choose between 'Always' and 'Never'. The graph is always cleared before the next measurement is displayed by 'Always'. All previous measurements stay visible in a gray color in the background by 'Never'. However, it is any time possible to clear the graph by pressing 'Delete'-key. Status Non-fatal errors that can occur, are displayed in 'Status'-field. These are: • Overexposure. The reason can be either a too long integration time or a too bright light source. Copyright © 2014 JETI Technische Instrumente GmbH 17 Operating Instructions Versa PS 2000 Document Version 1.3 Note, that spectra are still shown in the case of overexposure and one can easily recognize an overexposure by plateaus on the top of a spectrum curve. • Position error. Occurs if the total number of impulses within one full turn was not equal to the total turn counts set in the 'Position manager'. The reason can be a false set number of total turn counts or accidental reverse motion of the encoder within a turn. It makes sense to do something against it only if the error occurs systematically, because at the moment as the error message appears the position miscalculation is already eliminated by the latest index position pulse. • Firmware error. Occurs if a reference measurement is done before a dark measurement, or if a transmission measurement is done before a reference measurement. The reason can be confused settings in the “Position manager” (e.g. the earliest position for a dark measurement, then transmission measurement and then reference measurement). Though occurrence of the error within the first turn after device connection or setting of the triggering positions is quite normal, because there is no assurance that the dark measurement position comes first. Copyright © 2014 JETI Technische Instrumente GmbH 18 Operating Instructions Versa PS 2000 Document Version 1.3 6. Specification Optical Parameters Dispersive element Imaging grating with aberration correcting mirror Dispersion Wavelength range 25 nm/mm 200…1000 nm Wavelength resolution (FWHM) £ 4.0 nm FWHM (100 µm slit) £ 2.5 nm FWHM (50 µm slit) £ 2.0 nm FWHM (30 µm slit) Asymmetry factor 0.7 – 1.4 Wavelength accuracy £ 0.2 nm (HgAr line source) Stray light <0.15 % (GG495, Ratio @420nm/@600nm, Halogen lamp) Integral non linearity (uncorrected) <1.5 % Sensitivity TBD Optical input Optical sensor SMA905 fiber connector (max. 500 µm fiber core) HAMAMATSU S11155-1 Min. integration time Max. integration time 10 µs 64 999 ms Electrical Parameters ADC resolution Dark noise 16 Bit < 12 ADC counts rms Dynamic (S/N at min. integration time) > 3000 Communication Interfaces RS232 115200 Bd, 8, N, 1, 1 USB2.0 Via virtual COM-port driver Full speed (12 Mbit/s) 921600, 115200, 38400 Bd options RS422 LAN/ Ethernet (POE) 921600, 115200, 38400 Bd options TCP IP protocol or RealPort driver, Com2TCP virtual com port with the desired baudrate Trigger Interface Fixed position Optocoupler galvanic isolated (1…20 mA) for dark, reference and transmission Copyright © 2014 JETI Technische Instrumente GmbH 19 Operating Instructions Versa PS 2000 Document Version 1.3 Encoder (rotary) Optocoupler galvanic isolated (1…20 mA) programmable positions with selectable encoder resolution Trigger delay 10 ms Jitter £ 2 ms Other Parameters Power supply Alternatively: 84…250 V AC 50/60 Hz <0.5 A PoE (Power over Ethernet) Dimensions max. 13.5 W 25 cm x 26 cm x 15 cm Weight Accessory 3 kg PC software ProSpekt (included in scope of delivery) PC software VersaSpec JETI SDK Power supply cable Operation manual Replacement of the fuse A fuse of 500 mA T is located in the power supply connector on the rear side of the device. Remove the power supply cord. Open the fuse box and replace the old fuse with a delay fuse 0.5 A 5 x 20 mm EN 60127-2-3Typ ESKA 522.500. Only the fuse complying with the specified type and nominal value for this product can be used. Copyright © 2014 JETI Technische Instrumente GmbH 20 Operating Instructions Versa PS 2000 Document Version 1.3 7. CE Declaration The device agrees with the regulations of the instruction 2004/108/EC for electromagnetic compatibility, 2006/95/EC for low voltage equipment and EU Harmonised standards: EN 55011 (2007-11) class B EN 61000-4-2 (2001-12); EN 61000-4-3 (2008-06); EN 61000-4-4 (2005-07); EN 61000-4-6 (2008-04) EN 61000-6-1 EN 61010-1 (2011-05) EN 61326-1 (2013-07 Copyright © 2014 JETI Technische Instrumente GmbH 21 Operating Instructions Versa PS 2000 Document Version 1.3 License Agreement for JETI Technische Instrumente GmbH Software Products IMPORTANT -- READ CAREFULLY BEFORE USING THE JETI SOFTWARE JETI hereby grants to you a non-exclusive license to use one copy of the delivered JETI software program (the "software") on a single computer according to the following items: The software is in "use" on the computer when it is loaded into temporary memory (i.e. RAM) or installed into permanent memory (e.g. hard disk, CD-ROM, or other storage device) of the computer. 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JETI Technische Instrumente GmH, Tatzendpromenade 2, 07745 Jena, Germany. All rights reserved. Copyright © 2014 JETI Technische Instrumente GmbH 23 Operating Instructions Versa PS 2000 Document Version 1.3 Service Please contact in case of any question or technical problem: JETI Technische Instrumente GmbH Tatzendpromenade 2 D-07745 Jena GERMANY Tel. +49 3641 225 680 Fax +49 3641 225 681 e-mail: [email protected] Internet: www.jeti.com Copyright (c) 2014 JETI Technische Instrumente GmbH. All rights reserved. Software and operating instruction are delivered with respect to the License agreement and can be used only in accordance with this License agreement. The hard and software as well as the operating instruction are subject to change without notice. JETI Technische Instrumente GmbH assumes no liability or responsibility for inaccuracies and errors in the operating instruction. It is not allowed to copy this documentation or parts of it without previous written permission by JETI Technische Instrumente GmbH. 05 March 2014 Copyright © 2014 JETI Technische Instrumente GmbH 24