Metrohm 797 VA Computrace User Manual
Page 194
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6 Electroplating Bath VA
797 VA Computrace – Software
182
Pretreatment
(see
Pretreatment with CVS and CPVS
, section 6.3)
Cleaning potential (V) [ -5...+5 V ; 1.625 V ] [ read only ]
Voltage applied to the electrodes during the
Cleaning time
.
Cleaning time (s) [ 0...80600 s ; 0 s ] [ read only ]
Time during which the
Cleaning potential
is ap-
plied to the electrodes.
Equilibration potential (V) [ -5...+5 V ; 1.625 V ]
(This pa-
rameter is with CPVS part of the sweep)
Voltage applied to the electrodes during the
Equilibration time
.
Equilibration time (s) [ 0...80600 s ; 5 s ]
(This parameter is
with CPVS part of the sweep)
Waiting time before starting the sweep; with
Equilibration potential
applied to the electrodes. If
the checkbox
Hydrodynamic (measurement)
is not
checked, the stirrer is switched off during that
time.
Sweep [ read only ]
The sweep parameters depend on the mode (see
CVS - Cyclic Voltammetric Stripping section 3.2,
and CPVS - Cyclic Pulse Voltammetric Stripping
section 3.2)
Substances tab with Calibration
technique “RC Sample with
response curve”
The
Substances
tab of the
EDIT WORKING METHOD PARAMETERS
window contains parameters for the definition and recognition of
substances, for the definition of standard solutions, for peak evalu-
ation and results calculation. The parameters displayed depend on
the
Calibration
technique selected in the
WORKING METHOD SPECI-
FICATIONS
window. With “RC Sample with response curve” follow-
ing parameters have to be defined:
Substance [ 24 characters ; ]
Substance name. For the assignment of a found
peak to this substance the checkbox on the left
side of the substance name must be checked.
With CVS:
Peak pos. +/- (V) [ -5...+5 V ; 0 V ]
Position of the peak voltage for the substance and
tolerance for this verification voltage.
With CPVS:
Step potential [ read only ; step 1: 0.2 V ]
Displays the potential values, which are defined in
the window
edit stripping steps
.
Bsln
.
Parameters for baseline evaluation (details see
Baseline
, section 5.2). Click the
button to open
the
BASELINE
window for the selected substance.