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4.3.10 Chrono CoulometryA potential step induces a current change. The charge is the integration of thecurrent versus time. The charge (Q) is recorded while the WORK potential ismaintained at a pre-set value versus the REF potential. A digital integrationprovides Q. The current is also recorded.Consult the Help file, keyword indexes:Chrono Coulometry - Method editing and Chrono Coulometry - Measurementsand curve files.4.3.11 Chrono PotentiometryA current step induces a potential change. The WORK potential is measured versusthe REF potential while the current is maintained at a pre-set value. The current isalso recorded.Consult the Help file, keyword indexes:Chrono Potentiometry - Method editing and Chrono Potentiometry -Measurements and curve files.4.3.12 Gal. CoulometryA current step induces a potential change. The charge is the integration of thecurrent versus time. The total charge consumed (Q) and the WORK potentialand AUX potential measured versus the REF are recorded while the current ismaintained at a pre-set value. The method stops when a total charge, a measuredpotential, a drift threshold in potential or a maximum duration has been reached.Method available with VoltaLab 06, VoltaLab 10, VoltaLab 40 VoltaLab 50 andVoltaLab 80.Consult the Help file, keyword indexes:Gal. Coulometry - Method editing and Gal. Coulometry - Measurements andcurve files.48VoltaMaster 4 - Version 7.0xSection 4, Chapter 3: Methods available
4.3.13 Pot. Dynamic EIS (Impedance)Electrochemical Impedance Spectroscopy (EIS) is used to investigate the kineticsof electrochemical processes. A dynamic EIS experiment will generate a set ofindividual electrochemical impedance spectra obtained at different DC potentials.Each individual spectrum reports the impedances measured at various frequencieswith a superimposed AC signal on a given DC potential. Dynamic EIS programmingcan generate:- Frequency scan at a single DC potential- Frequency scans at specified time intervals (at a single DC potential)- Frequency scans at different DC potentials (from initial to final in pre-set potentialsteps)- Frequency scans at specified time intervals at OCP in between each EIS (sequencemade of a succession of OCP with polarisation at end and Pot. Tutorial EIS with DCpotential = Free and OCP at end)Nyquist or Bode diagrams are available as a real-time plot display. Method availablewith VoltaLab 40 and VoltaLab 80.Consult the Help file, keyword indexes:Pot. Dynamic EIS (Impedance) - Method editing and Pot. Dynamic EIS(Impedance) - Measurements and curve files.4.3.14 Pot. Expert EIS (Impedance)The Pot. Expert EIS (Impedance) method enables you to get more accurate resultsthan with the Pot. Tutorial or Dynamic EIS methods. This expert-dedicated methodallows to edit up to 3 segments along the frequency range with the followingappropriate parameters: Frequency scan limits, AC amplitude, Frequency resolution(Freq. per decade), Number of measurement repetitions or number of sine wavesupon which frequency is considered (Repeat meas.), Number of measurementstaken for the mean calculation (Average last), Delay before integration and ACcurrent measuring range.If you compare with the Pot. Dynamic EIS (Impedance) method, where all theparameters have been set to give you a spectrum as rapidly as possible, a Pot.Expert EIS method will deliver a better result because you will allow more time forstabilisation and integration when you need it.Only one file is generated. Method available with VoltaLab 40 and VoltaLab 80.Consult the Help file, keyword indexes:Pot. ExpertEIS (Impedance) - Method editing and Pot. Expert EIS (Impedance) -Measurements and curve files.VoltaMaster 4 - Version 7.0x 49Section 4, Chapter 3: Methods available
Page 1 and 2: Register your product nowTo keep up
Page 3 and 4: ContentsRegister your product now 1
Page 5 and 6: 1. General presentationDear Custome
Page 7 and 8: Precautionary LabelsRead all labels
Page 9: 1.3 VoltaLab 21 Economical Electroc
Page 12 and 13: 1.6 VoltaLab 40 Dynamic Electrochem
Page 14: 1.8 VoltaLab 80 Universal Electroch
Page 20: Edit the Other settings parameters.
Page 23 and 24: 2.5 Uninstalling VoltaMaster 4Volta
Page 25 and 26: 3. Getting startedFor a VoltaLab 10
Page 28: For a VoltaLab 06RS232 cable9-pin f
Page 31 and 32: 3.3 User identificationIf you selec
Page 33 and 34: 3.5 Set up your instrumentIf you se
Page 35 and 36: 3.7 Set up the Other settings param
Page 37 and 38: 4. VoltaMaster 44.1 The VoltaMaster
Page 39 and 40: Curve type bar - XX is the abscissa
Page 41: 4.2 Using the VoltaMaster 4 Help fi
Page 45 and 46: 4.3.1 Open Circuit PotentialThe Ope
Page 47: Visual IFVA virtual front panel is
Page 51 and 52: 4.3.17 Gal. Expert EIS (Impedance)T
Page 53 and 54: 4.3.22 Pot. Step by step CVStep by
Page 55 and 56: 4.3.28 Gal. Universal DPThe Gal. Un
Page 57 and 58: 4.3.34 Pot. Low Current CAA potenti
Page 59 and 60: 4.3.40 Auto. TrajectThe Auto. Traje
Page 61 and 62: 4.3.46 Standard calibrationThis met
Page 63 and 64: 4.3.47 Calibration by additionThis
Page 65 and 66: 4.3.53 Print ReportThe Print Report
Page 67 and 68: The following guidances are given i
Page 69 and 70: 8. Save the sequenceThe initial dat
Page 71 and 72: 4.5.1 Before starting a sequenceChe
Page 73 and 74: 4.6 Processing curves to obtain res
Page 75 and 76: 4.6.1 Post run processing functions
Page 77 and 78: InformationDisplay information on a
Page 79 and 80: Evans plotDisplay the Evans diagram
Page 81 and 82: 4.7 PrintoutsThe Printpreview iconV
Page 83 and 84: 4.7.3 Preparing a printoutThe “Fi
Page 85 and 86: 4.7.5 Printing the parameters of an
Page 87: 4.7.6 Printing CurvesA curve or an
Page 90 and 91: 1. 20 curves maximun in a graphYou
Page 92 and 93: 6. Current disjunctionEffectsThe po
Page 94 and 95: 11. Out of range: -15 V to 15 VWhil
Page 96 and 97: 17. Vg overloadThis error message i
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4.9 Troubleshooting list4.9.1 Chara
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4.10 The ohmic drop compensation4.1
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4.10.4 Running an experiment with a
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CGgIPpQRSTZCalibration CV STGal. Un
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Menu “File” (Routine setup mode
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Menu “Settings” (Full and Super
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Menu “File” (Routine setup mode
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Menu “Settings” (Full and Super
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5.1.1 The front panelsPGZ100 and PG
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The “D/A OUT” socket (4)A DC vo
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5.1.2 The rear panelsLINE FUSE T2A
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4 connecting cords are used (see th
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5.1.4 UseThe PGZ and PST potentiost
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5. Background noise on measurements
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5.1.7 Technical specificationsPGZ10
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PGZ301 PotentiostatRegulationCompli
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PGZ402 Universal PotentiostatRegula
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PST006 Educational PotentiostatRegu
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5.1.8 CE MarkingThe PGZ100, PGZ301,
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the PGP201 internal signal generato
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5.2.2 The rear panelLI-BATTERY3.6 V
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5.2.3 InstallationElectrical safety
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2. Connecting the computerSee Secti
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3. User data lost - Press any keyTh
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5.2.6 MaintenanceWarning!All cables
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5.2.8 CE MarkingThe PGP201 complies
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If the EDI10000 is used:ONE(X) INI
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3. To set another electrode rotatin
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Cables 1 to 4 are supplied in the C
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6.3 Rotating Ring and Disc Electrod
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PGZ TwoWORKAUXREFCell ringCell AUXC
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6.3.5 ConclusionIt is convenient an
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1 PGZ/PST050 “REF.” socket to t
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6.5.2 SettingsEstablish the serial
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166VoltaLab 21/06/10/40/50/80Sectio
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Determine the peak and integrate th
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Determine the peak and integrate th
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6.6 ABU901 AutoburetteThe ABU901 is
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RS232 cable9-pin female / 9-pin fem
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6.7.4 Set up your cellIf you run a
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6.7.8 Technical specifications - HV
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6.8 HCB005 - HCB010 - HCB020 High C
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RS232CLINE FUSE T2A L250V120/230 Va
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If it is not the case (communicatio
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6.8.5 Set up the other settingsSet
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Environmental conditionsInterior us
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6.9 Additional units - PGZ402 E(X)
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Check that the electrical zero and
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Click the “Settings” button and
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6.11 External signal generator - Vg
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6.12 Measuring an A/D IN signalUsin
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