Metrohm viva 1.0 (process analysis) - Manual (Page 880)

8.4 Manual control - Functions
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viva 1.0 (for Process analysis)
[Stop]
Stops the selected stirrer.
Measure potentiostatically
Voltage
Potential that is applied to the electrodes.
Input range -5.000 - 5.000 V (Increment: 0.001)
Selection off
Default value off
Current measuring range
Selection of the current measurement range.
Selection 224 mA | 20 mA | 2 mA | 200 μA | 20 μA | 2
μA | 200 nA | 20 nA
Default value 224 mA
[Start]
Starts the potentiostatic measurement. This button is disabled if an OCP
(open-circuit potential) measurement has been started.
[Stop]
Stops the potentiostatic measurement.
Measure open-circuit potential
[Start]
Starts the measurement of the free corrosion potential in the setting
standby potential.
[Stop]
Stops the measurement of the free corrosion potential.
Measured value window
Stirring rate
Shows the current number of revolutions per minute of the stirrer. The
current stirring rate is also displayed if a stirrer is still switched on after a
determination has ended.
Voltage
Shows the potential currently applied to the electrode. The potential is
also displayed if a standby potential is still activated after a determination
has ended.
In the case of an OCP measurement, the open-circuit potential measured
is displayed in this place.