Metrohm 797 VA Computrace - Manual (Page 164)

6 Electroplating Bath VA
797 VA Computrace – Software
152
ment). For cyclic modes (CV, CVS, CPVS) the “total
number of measurements” is the
No. of replica-
tions multiplied with the number of Save last ..
sweeps ( Voltammetric tab). “Total number of
measurements” must not exceed 10.
Voltammetric tab with Calibration technique “Standard
addition plating bath”
The Voltammetric tab of the EDIT WORKING METHOD PARAME-
TERS window contains parameters for preparation procedures and
VA measurement modes. The parameters displayed depend on the
measurement mode selected in the
WORKING METHOD SPECIFICA-
TIONS window. With “Standard addition plating bath” following
parameters have to be defined:
Initial mixing time (s) [ 0...80600 s ; 10 s ] (see Initial mixing time
with CVS and CPVS , section 6.3)
Time of mixing before the first measurement of
the sample solution.
Conditioning Cycles (see Conditioning cycles with CVS and CPVS ,
section 6.3)
Start potential (V) [ -5...+5 V ; 0.2 V ]
Start voltage for the cyclic conditioning sweep.
End potential (V) [ -5...+5 V ; 1.625 V ]
Final voltage for the cyclic conditioning sweep.
No. of cycles [ 0...X ; 0 ]
Number of conditioning cycles.
Pretreatment (see Pretreatment with CVS and CPVS , section 6.3)
Cleaning potential (V) [ -5...+5 V ; 1.625 V ]
Voltage applied to the electrodes during the
Cleaning time .
Cleaning time (s) [ 0...80600 s ; 0 s ]
Time during which the Cleaning potential is app-
lied 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
The sweep parameters depend on the mode (see