Metrohm 757 VA Computrace User Manual
Page 50
3 General settings for exploratory and determination mode
757 VA Computrace – Software
40
Sweep parameters:
Hydrodynamic (measurement) [ on, off ; off ]
Enable/disable stirring of the RDE/SSE during the sweep.
Start potential (V)
[ -5...+5 V ; -0.9 V ]
Start voltage for the voltage sweep.
End potential (V)
[ -5...+5 V ; -0.1 V ]
Final voltage for the voltage sweep.
Voltage step (V)
[ > 0 V ; 0.006 V ]
Voltage step for direct voltage ramp.
Sweep rate (V/s)
[ > 0 V/s ; 0.1 V/s ]
Ramp slope =
Voltage step / Voltage step time
.
No. of sweeps
[ > 0 ; 1 ]
Number of cyclic sweeps to be performed.
Save last ... sweeps]
Number of cycles to be saved.
Notes:
• The CV measurement mode can only be used with HMDE or
RDE electrodes.
• The following condition applies to the definition of
Voltage step
and
Sweep rate
:
Voltage step time = Voltage step / Sweep rate > 270 µs