User manual

Chapter 2 Front Panel Operations RIGOL
DP800A User’s Guide 2-9
Number of Cycles
The number of cycles is defined as the number of times that the instrument performs
timing output according to the preset voltage and current. Press Cycles to set the
number of cycles to “Infinite” or use the knob or numeric keyboard to input the value.
The range is from 1 to 99999.
End State
The end state refers to the state of the instrument after it finishes outputting the
total number of groups of voltage and current values when the number of cycles is a
specified value. Press End State to select “Outp Off” or “Last”.
 Outp Off: the instrument turns off the output automatically after finishing the
output.
 Last: the instrument stops at the output state of the last group after finishing
the output.
Note: When the number of cycles is set to “Infinite”, the end state is invalid.
To Manually Edit the Timer Parameters
You can edit the timer parameters manually. Press Parameter and use the left/right
direction keys to select the number (No.) in the timer parameter list, use the
up/down direction keys to select the voltage (Volt), current (Curr) and time (Set) of
the current group respectively and use the numeric keyboard or direction keys and
knob to input the desired value. Use the same method to set the parameters of the
other groups.
You need to set the parameters of number 0 to number (P-1); wherein, P is the
number of output groups currently set. Only 6 groups of parameters can be
displayed on each page of the timer parameter list and you can press
or to
view and set the parameters of the other groups. This interface provides timer
parameter preview; the horizontal axis represents time and the vertical axis
represents voltage and current; users can view the values on the current page of the
parameter list.
Tip
 The total number of groups in each timing output = the number of groups ×
the number of cycles
 The power supply will terminate the timer function when the total number of
groups of outputs is finished. At this point, the state of the power supply
depends on the setting of End State.