Instruction Manual

6.2 Calibration techniques with CVS and CPVS
797 VA Computrace – Software
175
bration curves additionally without date and time
on the General tab of the GENERAL SETTINGS
window is checked.
Volume VMS (mL) [ > 0 mL ; 10 mL]
The volume of the Virgin Make-up Solution (see
VMS (Virgin Make-up Solution), section 6.4).
Cell volume (mL) [ > 0 mL ; 10 mL ] [ read only ]
Total volume of solution (equal to the volume of
the VMS (Virgin Make-up Solution)) in the measu-
ring vessel at the start of the determination. The
sample concentrations Conc. calculated refers to
this cell volume.
Initial electrode conditioning (see Initial electrode conditioning,
section 6.3)
Check the checkbox to use conditioning.
No. of conditioning measurements [ 1...100 ; 1 ]
Number of replications of conditioning measure-
ments. The “total number of conditioning measu-
rements” is the No. of conditioning measurements
multiplied with the number of Save last .. sweeps
(Voltammetric tab). “Total number of conditioning
measurements” must not exceed 100.
or Auto Std.dev (%)[ >0.1 ; 1 ]
Define until which „Std.dev.“ the conditioning is
continued. The „Std.dev.“ is calculated from all sa-
ved sweeps of the last two “conditioning meas-
urements”.
Note: If you set a small value (e.g. < 1%), it can
take a long time until reaching the target.
Note: If both No. of conditioning measurements [
1...100 ; 1 ] and Auto Std.dev (%) [ >0.1 ; 1 ] are
activated, the conditioning is finished as soon as
the first of the two criterias is reached.
Addition mixing time [ 0...80600 s ; 10 s ]
Time of mixing after Additions (for the first measu-
rement, the
Initial mixing time is used).
No. of replications [ 1...10 ; 2 ]
Number of replications (= total number of measu-
rements) for each variation (sample, standard ad-
dition, calibration level, conditioning measure-
ment). For cyclic modes (CV, CVS, CPVS) the “total
number of measurements” is the No. of repli-