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6. Current disjunctionEffectsThe potentiostat disconnects the working electrode (protection of theelectrochemical cell) and the sequence is stopped.If possible, select a higher current measurement range. If a PGZ or a PSTpotentiostat is used, you can also select a greater “Delay before disjunction” valuein the “Other settings” before clicking the “Repeat method” or “Next method” button:· Click “Repeat method” to restart the method from the beginning with loss of themeasurements saved previously for that method.· Click “Next method” to start the next method of the sequence if any. In thiscase, the measurements saved before the Current disjunction are kept inmemory.If the error occurs in the ±1 A current range, the possible causes of errors are listedbelow.Causes· In potentiostatic mode, the potential E and the resistance R of the electrolytelocated between the working and the reference electrodes are such thatthe measured current I is higher than 1 A in absolute value. Decrease the Rresistance by decreasing the working electrode surface.· In potentiostatic mode, there is a cut-off in the reference electrode circuit: thepotential Vg between the working and the reference electrodes could not beadjusted and increased leading to an increase in the current I which becomeshigher than 1 A in absolute value. Check the reference electrode (defectivereference electrode, unsaturated or contaminated liquid junction, cloggedjunction, air bubble trapped), and check the reference electrode connectingcable (short circuit).. In galvanostatic mode with a PGZ or a PGP201 when a signal generator isused and connected to the Vg IN socket, the signal being applied must notexceed 1 V for 100% of the current range selected. On the signal generator,define the signal to be applied in order to have the sum of the voltage sources(potentiostat (Vg (int.) and generator (Vg (ext.)) between -1000 and 1000 mV.-1000 mV ≤ Vg (int.) + Vg (ext.) ≤ +1000 mVWhere:Vg (int.) is the voltage applied by the potentiostat internal source (it is thecurrent applied multiplied by the current range resistor). The current rangeresistor is equal to 1 ohm for the 1 A range, 10 ohm for the 100 mA range, ..., 1Mohm for the 1 µA range). Vg (ext.) is the potential applied by the generator.92VoltaMaster 4 - Version 7.0xSection 4, Chapter 8: Error messages
7. Impossible to edit this method, (instrument compatibility)This error message is displayed upon editing a method in the sequence which cannot be run with the type of potentiostat selected in the “Instrument setup”.Example: you are trying to edit a Pot. or Gal. Universal DP or a Pot. or Gal.Recurrent DP with a PGZ301 potentiostat.Setup (“Settings– Instrument setup” command) a potentiostat which allows you toedit and run the method. You can also remove the method from the sequence to berun.8. Impossible to execute the sequence with this instrumentThis error message is displayed upon starting a sequence if you have declared amethod in the sequence that cannot be run with the instrument connected to thePC and selected in the “Instrument setup”.Example: the sequence comprises a Pot. Universal DP and a PGZ301 potentiostatis connected to the PC and declared in the “Instrument setup” parameters.Check the sequence edition (click the icon) and remove the method(s)that cannot be run with <strong>your</strong> potentiostat. You can also connect and declare apotentiostat that is able to run <strong>your</strong> sequence (a PGZ402 or a PST050 to run a Pot.Universal DP for example).9. Integration overloadThis message may be displayed when measuring impedances using a too lowcurrent measurement range (while running a Pot. Dynamic EIS (Impedance), Pot.Tutorial EIS (Impedance), Pot. Fixed Freq. EIS (Capacitance)or Gal. Tutorial EIS(Impedance) method). The experiment in progress is stopped. Select, if possible,a greater current range. In impedance measurement methods, the “Auto” option isrecommended for the AC current range.10. No zero-current potentialYou are trying to reprocess a curve or a part of a curve having no zero currentpotential using the First Stern (Tafel) or Second Stern method. Select “Curve –Traject” then choose the appropriate “Path” option in the “Traject” dialogue box. Ifthe error remains displayed, check that the i = f(E) curve crosses the potential axissomewhere.VoltaMaster 4 - Version 7.0x 93Section 4, Chapter 8: Error messages
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Register your product nowTo keep up
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ContentsRegister your product now 1
Page 5 and 6:
1. General presentationDear Custome
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Precautionary LabelsRead all labels
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1.3 VoltaLab 21 Economical Electroc
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1.6 VoltaLab 40 Dynamic Electrochem
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1.8 VoltaLab 80 Universal Electroch
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Edit the Other settings parameters.
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2.5 Uninstalling VoltaMaster 4Volta
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3. Getting startedFor a VoltaLab 10
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For a VoltaLab 06RS232 cable9-pin f
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3.3 User identificationIf you selec
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3.5 Set up your instrumentIf you se
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3.7 Set up the Other settings param
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4. VoltaMaster 44.1 The VoltaMaster
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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 and 48: Visual IFVA virtual front panel is
Page 49 and 50: 4.3.13 Pot. Dynamic EIS (Impedance)
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 94 and 95: 11. Out of range: -15 V to 15 VWhil
Page 96 and 97: 17. Vg overloadThis error message i
Page 98 and 99: 4.9 Troubleshooting list4.9.1 Chara
Page 100 and 101: 4.10 The ohmic drop compensation4.1
Page 102 and 103: 4.10.4 Running an experiment with a
Page 104 and 105: CGgIPpQRSTZCalibration CV STGal. Un
Page 106 and 107: Menu “File” (Routine setup mode
Page 108 and 109: Menu “Settings” (Full and Super
Page 110 and 111: Menu “File” (Routine setup mode
Page 112 and 113: Menu “Settings” (Full and Super
Page 114 and 115: 5.1.1 The front panelsPGZ100 and PG
Page 116 and 117: The “D/A OUT” socket (4)A DC vo
Page 118 and 119: 5.1.2 The rear panelsLINE FUSE T2A
Page 120 and 121: 4 connecting cords are used (see th
Page 122 and 123: 5.1.4 UseThe PGZ and PST potentiost
Page 124 and 125: 5. Background noise on measurements
Page 126 and 127: 5.1.7 Technical specificationsPGZ10
Page 128 and 129: PGZ301 PotentiostatRegulationCompli
Page 130 and 131: PGZ402 Universal PotentiostatRegula
Page 132 and 133: PST006 Educational PotentiostatRegu
Page 134 and 135: 5.1.8 CE MarkingThe PGZ100, PGZ301,
Page 136 and 137: the PGP201 internal signal generato
Page 138 and 139: 5.2.2 The rear panelLI-BATTERY3.6 V
Page 140 and 141: 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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