8channel potentiostat/galvanostat

Transcription

1 8channel potentiostat/galvanostat Corrosion Research Battery/SuperCap Testing Fuel cell/solar cell IV curve Testing Electrode Material Testing Battery Charging/Discharging (CC/CV) Test User defined Test Cyclic voltammetry Electrochemical Voltage Spectroscopy And more.. Since 1991

2 Shield cell cable to prevent EMI noise HIGH LIGHTS Corrosion Test Sensor application Electro-analytical application Battery/Fuel cell Test Electroplating, Electro-synthesis Electrochemical permeation 5 current ranges with automatic current ranging Introduction WMPG1000K8 is promotional product having same specification and functions with standard WMPG1000S multichannel potentiostat/galvanostat system but this system can not be expanded. This system is proper for corrosion study, battery/fuel cell research and other electrochemical application with +/-10V, 1Amp capability. System hardware was designed for stable and accurate instrument for multichannel operation. WMPG1000K8 has plug-in type channels for easy maintenance. User can test multiple samples simultaneously or independent control. The powerful software can give various plots for users to analyze test results easily. WMPG software supports most various control parameters with various cutoff conditions. Pre-defined techniques for battery test, corrosion test and physical electrochemical test make the user can test their sample so easily even if he/she is novice of electrochemical testing. For advanced users, powerful test schedule function is provided. With custom schedule with various control parameters, he/she can test their samples with user defined complex test schedule. Independent data analysis software (IVMAN) can be used for WMPG data at free of charge. It support data smoothing, differential, integration, peak search and special analysis tools for battery test data. Feature High precision 16bit(0.0015% full scale) dual ADCs per 8channels and one DAC per channel 0.05% full scale control and reading accuracy in voltage and current. 5 current ranges (+/-1A,100mA, 10mA,1mA, 100uA) MOSFET type linear power supply circuit. Safety & Maintenance Unique Fail check function: Automatic stop when measured value is different from control value by battery failure or wrong cell connection etc. => To protect system and cell. E.g. Control value: 1Amp Measured value: 500mA then automatic stop the channel System safety parameter: If the measured value is over system specification, Automatic stop the running channel User defined safety condition setting: User can input safety level following test cell s chemistry. Automatic cell connection check: Before experiment, if the cell voltage value is near 0Volt, program gives the warning message for the operator to check the cell connection. If operator did press stop function button by mistake, confirmation message box appears. To prevent over current, poly-switch is located in each channel Watchdog function: Stop running channel(s) on communication Failure. While any channel is running, operator could not close the server program If main program was down by unstable operating system, independent server program keeps the experiment (control & data acquisition) without dead time. Plug in type channel Each channel has Poly switch instead of fuse. Easy calibration software with verification function Option Auxiliary voltage & Temperature measurement User can assign any temperature input or auxiliary voltage input to single or multiple channel(s) data set by his/her demand. Customized auxiliary voltage range and temperature range is available. Cell Kits Faradaic cage Universal Electrode holder Battery jigs Universal Jig Coin cell Jig Lithium polymer battery Jig Front Panel coin cell holder

3 Specification Main system PC communication Line voltage Channel No Size Max output power System Cell cable Comm & Control CPU Calibration Data Acquisition ADC Control DAC Rise time Voltage reading input impedance Fastest Sampling interval USB VAC 8ch (Channel expansion is impossible) 449x446.6x177mm (WxDxH) +/-12Watt shielded type with 4 alligator clips Intel bit By software 2x16bit ADCs for voltage, current 16bit DAC per channel 50usec 10Gohm 0.1sec Potentiostat Mode(voltage control) - voltage control Control voltage range -10V to +10V Control Voltage resolution 16 bit 0.3mV Control Voltage accuracy +/-2mV Max. scan range -10V to +10V vs. ref. E - current measurement Current measurement ranges +/-1Amp,100mA, 10mA,1mA, 100uA Current measurement resolution 16 bit; 30uA, 3uA,300nA, 30nA,3nA Current measurement accuracy +/-500uA, 50uA, 5uA,500nA,50nA Galvanostat Mode(current control) - Current control Control current range +/-1Amp,100mA, 10mA,1mA, 100uA Control current resolution 16 bit; 30uA, 3uA,300nA, 30nA,3nA Control current accuracy +/-500uA, 50uA, 5uA,500nA,50nA - Voltage measurement Voltage measurement range -10V to +10V Voltage measurement resolution 16 bit; 0.3mV Voltage accuracy +/-2mV Software Max steps per experiment unlimited Shutdown safety limits Voltage, current, temperature, Auxiliary voltage Watch dog Yes Max. sampling time unlimited Min. sampling time 100msec Sampling condition Time, dv/dt, di/dt, temp. OS WindowsXP, Vista, 7 Analysis software IVMAN, IVMAN_diff General Dummy cell One external dummy cell included Temperature measurement & 1.5meter K-type (option) Thermocouple Auxiliary Voltage measurement & cable Option Windows is a registered trade mark of Microsoft Corporation.

4 Software Application Cyclic voltammetry (Technique Menu) Linear Sweep Voltammetry (Technique Menu) Square Wave Voltammetry (Technique Menu: Option) Chrono-amperometry (Technique Menu) Chrono-coulometry (Technique Menu) Chrono-potentiometry (Technique Menu) Tafel Plot (Technique Menu) Potentiodynamic (Technique Menu) Cyclic Polarization (Technique Menu) Ecorr vs. time (Technique Menu) Galvanodynamic OCV measurement Zero resistance Ammeter(option) Linear polarization resistance (Technique Menu) Rp-Ec trend Charge/discharge Battery test Electrochemical Voltage Spectroscopy (EVS) Electrochemical Permeation User defined techniques 32bit multi-tasking Tool bar: quick access for easy operation WYSIWYG graphics User friendly software Virtual control panel BCO (Button click operation); User can do any task with just clicking the button: NO MENU SELECTION Easy assignment of cycle test condition file to channel with combo box selection at anytime. Synchronized change function of cycle test condition file for selected multiple channels. Real time dual channel (V & I) strip chart display for selected channel or for all running channels with time scrolling mode or whole window mode. Status bar displays channel status. Booking running channel stop function by time, cycle number, step etc. Various task function: run, stop, suspend, moving step etc. Spying the contents of test program which assigned to channel Assign temperature, AuxV and CalcV channel on virtual control panel Experiment editor One stop test condition creation/modification Parameter mixed input system Unlimited number of test steps Control parameters are Constant voltage Constant current Constant power Voltage scanning Current scanning Conditioning potential Voltage step Current step OCV EocVscan PstepV PstepI Etc. Step flow are defined by next step, Loop and cycle Cut-off conditions can be set by; Time, voltage, current, dv/dt, di/dt, percentage capacity (FCC, FCD, LCC, LCD), cycle time, capacity, -dv, power, temperature, Aux voltage, Calc voltage, dt/dt, OCV Data sampling condition by each step: time, dv/dt, di/dt, dt/dt, dv2/dt And/Or logic in cut-off condition setting

5 Menu Selection (Pre-defined techniques) Electroanalytical techniques Detailed monitor Cyclic voltammetry Linear Sweep Voltammetry Chrono-amperometry Chrono-coulometry Chrono-potentiometry Squarewave Voltammetry (Option) Staircase voltammetry (Option) Stripping voltammetry (Option) Corrosion Measurement Tafel Plot Potentiodynamic Potentiostatic Cyclic polarization Ecorr vs. Time Linear polarization Resistance Rp / Ec trend Galvanic corrosion (Option) Battery Test Displayed test data: status, running time, step number, cycle number, step time, current range, current, voltage, capacity, power, energy, Aux V, Calc V, temp, cycle file name, data file name, file size. Detailed monitor type selection: All channels, running channels only, grouped channels Activated character only for running channels. Graphics Multiple plot format - General graph - Cycle graph - Step Graph General graph format Li(Lithium battery) test CC test Simple Monitor Real time display: time, voltage, current, channel status Channel status color display: charging, discharging, standby, idle, calibration Always activated window (This widow does not hidden) Can be located outside of main program window. Grouping Classification/Grouping each channels by users purpose Labeling each group by operator name, chemistries etc. Group monitoring available by this setting Current-Voltage vs. time graph Current-voltage vs. cycle time graph

6 Cyclic voltammogram Cycle graph format Tafel graph Mouse zooming Text insertion on graph Copy to Clipboard for usage in other application software Slope calculation Grid On/Off and dot/line selection ASCII file conversion of graph data only Parameter change without reloading the data file Data set On/Off: Data can be visible or invisible by selecting/ deselecting the data set. Voltage vs. charging-discharging time graph charging capacity-discharging capacity vs. cycle number graph Real time plotting Step graph format Voltage vs. charging-discharging capacity graph Reporting General data report Cycle data report Step data report Capacity data report Calibration dq/dv vs. Voltage graph(evs) General Function of Graph Multi-Parameters Plot overlay: Max. 10 plot Universal Graphics: Any combination of X,Y,Y1 axis parameters Automatic updating plot with reloading button for running channel data Automatic/Manual scale and polarity selection for each axis Cross hair pointer by mouse click/arrow key displays coordinate values Data Analysis software WMPG data format can be used for independent data analysis software IVMAN TM at free of charge. IVMAN TM software package consists of IVMAN software IVMAN differential analysis software IVMAN Extractor IVMAN peak find module

7 IVMAN Diff software Battery test data analysis Electrochemical voltage spectroscopy (dq/dv vs V) Voltage vs. Capacity analysis (V vs. Q) Cycle graph (Q vs. cycle) Differential voltage graph(dv/dq vs Q) Reporting function Tafel initial fitting Tafel analysis result Measured data V vs Q Polarization resistance fitting Polarization analysis result Cycle graph dq/dv vs V Time graph Find peak menu dv/dq vs. Q Export ASCII file CV graph 3D graph Extractor Extracting data by cycle number or step Exporting ascii file Edit data menu Universal graph Peak find Module Independent peak finding software IVMAN software Electrochemical analysis software Ideal for DC corrosion data analysis and electro-analytical data analysis Initial guessing function on Tafel analysis Automatic Tafel fitting Polarization resistance fitting 3D graph Find peak function Interpolation, differentiation, integration etc

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