Owner manual

5.5 Operation
746 VA Trace Analyzer / 747 VA Stand
5-88
Parameter Range; Default value / Meaning
red. fitting prec. Unsatisfactory matching of the non-linear
calibration curve.
VR. display only
Variation and replication
Per variation and replication, all single measurements are numbered
consecutively from 0...8 (std.add.) or 0…9 (cal.crv.):
V Variation (standard addition or parameter variation)
R Replication (repeat)
Each single measurement can be suspended or reactivated for
subsequent calculations with the softkey <Suspend/activate>.
Suspended measurements are marked by the character ! positioned
next to the VR number.
U/mV display only
Peak voltage or half-wave voltage (variable EU:<subst>:<V>)
Peak voltage U.peak determined for the single measurement in mV.
With measurements recorded with DCTMODE (SWEEP) or
AC2MODE, the half-wave voltage U/2 is shown here in mV.
The mean value of the peak voltages for all replications of a variation
can be used in formulae as EU:<subst>:<V> (<subst> = substance
name; <V> = variation) for further calculations. It should be noted that
this value is put out in such cases in the base unit V without prefix
(see section 5.6.4).
I/xA, P/xW,
t/xs
display only
Evaluation quantity
Evaluation quantity determined for single measurement with unit (A,
W, s). Depending on the selection of the measurement mode and
Quantity on the "SUBSTANCES" page, the following is shown here:
I/xA Peak current I.peak for DPMODE, SQWMODE,
AC1MODE, AC2MODE, DCTMODE (SSWEEP) with
Quantity = I.peak, or wave current I.wave for
DCTMODE (SWEEP) (in A, mA, µA, nA, etc.)
P/xW Peak area P.peak for DPMODE, SQWMODE, AC1MODE,
DCTMODE (SSWEEP) with Quantity = P.peak (in W,
mW, µW, nW, etc.)
t/xs Peak area t.peak for PSAMODE (in s, ms, µs, etc.)
I.mean, P.mean,
t.mean
display only
Mean value of evaluation quantities (variable EV:<subst>:<V>)
Mean value of the evaluation quantities of the single measurements in
replications. Depending on the selection of the measurement mode
and Quantity on the "SUBSTANCES" page, the following is shown
here:
I.mean Mean value of the peak current I.peak for DPMODE,
SQWMODE, AC1MODE, AC2MODE, DCTMODE
(SSWEEP) with Quantity = I.peak, or mean value of the
wave current I.wave for DCTMODE (SWEEP) (in the
same unit as for I)
P.mean Mean value of the peak area P.peak for DPMODE,
SQWMODE, AC1MODE, DCTMODE (SSWEEP) with
Quantity = P.peak (in the same unit as for P)