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3. User data lost - Press any keyThe PGP201 has detected an anomaly while performing its autotest. Press any keyto restore the proper operation.4. I = RANGE OVLD, Iimp OVERLOAD or I OVERLOADThe PGP201 disconnects the working electrode (protection of the electrochemicalcell) and VoltaMaster 4 software displays the “CURRENT DISJUNCTION” errormessage which means that the experiment is stopped.Consult VoltaMaster 4 Help file, keyword index:Error messages (select Current disjunction).5. E OVERLOADThis error message indicates that the E voltage measured between the workingand the reference electrodes is higher than 8 V. The PGP201 could not perform thepotential or the current regulation. The experiment in progress is stopped.Consult VoltaMaster 4 Help file, keyword index:Error messages (select Potential overload).6. VS OVERLOADThis error message indicates that the compliance voltage measured in absolutevalue at the auxiliary electrode is higher than 20 V. The PGP201 could not performthe potential or the current regulation. The electrodes remain connected and theexperiment in progress is stopped.Consult VoltaMaster 4 Help file, keyword index:Error messages (select Eaux. overload).7. No display when PGP201 switched onCheck the power supply circuit (mains socket, mains cable, fuse and On/Offswitch). Replacement of the fuses is described in Chapter 5.2.6.Check that the mains voltage selection switch on the rear panel of the PGP201 isset to the position corresponding to the mains voltage: too low or too high voltagesare equally harmful. Please refer to Section 3 “Getting Started”.144VoltaLab 21/06/10/40/50/80Section 5, Chapter 2: The PGP201 Potentiostat/Galvanostat