10-36
measure the redox potentials of species that react rapidly when electrolyzed. A
typical current response for SHACV/P is shown in Figure 10-22.
Figure 10-22. Second harmonic A.C. current response for SHACV/P.
General Parameters for ACV/P, PSACV/P, SHACV/P
Initial E (mV) = 0
-3276 to 3276
Final E (mV) = 0
-3276 to 3276
Sensitivity = 1
µ
A/V
100 mA/V to 100 nA/V (10 pA/V with the
Low Current Module)
Specific Parameters for ACV/P, PSACV/P, SHACV/P
Scan Rate (mV/sec) = 4
1 to 200
A.C. Amplitude (mV) = 25
1 to 250
A.C. Frequency (Hz) = 50
5 to 250
Drop Time (msec) = 1500
500 to 8000
Quiet Time (sec) = 2 (0)
0 to 65535
Specific Parameters for PSACV/P, SHACV/P
Phase Shift (degree) = 0,110
0 to 360
Comments
a) Drop Time is used for ACP, PSACP and SHACP. The range of values
allowed for the Drop Time depends on the A.C. Frequency. The analogous
parameter for ACV, PSACV and SHACV is the Step Period, which is
controlled by the A.C. Frequency (default value is 1500 msec).
b) Parameters values in parentheses refer to ACP, PSACP and SHACP.
c) The Phase Shift is the phase angle relative to the applied A.C. potential used
for lock-in detection of the A.C. current. The Phase Shift resolution is 2, 5,
or 10 degrees (the lower the A.C. Frequency, the better the resolution).
