5560A/5550A/5540A
Operators Manual
44
Set a Reference
The
Ref
button is on lower left of the ACV screen, opens a slide-out menu where you can set a new
reference for accuracy of a new standard.
1. Tap the
Ref
button to open the Select Z
0
slide-out menu.
2. Choose from these values (listed in order horizontally) :
3. Tap the
Apply
button or push
E
. This closes the menu. The entry shows on the
screen.Tapping
x
instead of
Apply
closes the menu without saving changes.
Enter a Duty Cycle
Duty cycle adjustment is available for ACV when you select a square wave. After you select a square
wave with the Waveform Selection procedure outlined in
Mode
softkey appears.
This toggles between
OFFSET
mode and
DUTY CYCLE
mode. The duty cycle value is adjusted in the
same manner as offset. If the mode is changed from offset to duty cycle, the offset is automatically set
to zero. If the mode is changed from duty cycle to offset, the duty cycle is set to 50 %.
To change the duty cycle of a square wave output:
1. Set the Product to output a 2 V p-p square wave at 1 kHz.
2. Tap the
Mode
softkey to show
DUTY CYCLE
.
3. Tap the duty cycle value.
4. Enter a new duty cycle between 1 and 99, or rotate the knob to slew to the desired duty cycle.
5. Push the
E
.
Set DC Current Output
To set the dc current output (
Function > Single Output > DCI
), refer to
and the
example shown in Table
for output entry basics. Complete the procedure with the necessary output
between VI AUX and OUTPUT LO or 30A and OUTPUT LO, depending on the current level selected.
Current >3.1 A is sourced between the 30A and OUTPUT LO terminals.
Also see these sections:
•
Auto Range Versus Locked Range
•
•
50
Ω
•
75
Ω
•
90
Ω
•
100
Ω
•
135
Ω
•
150
Ω
•
300
Ω
•
600
Ω
•
900
Ω
•
1000
Ω
•
1200
Ω
