PASCO PI-9880 Power Supply - Manual (Page 10)

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D C P r o g r a m m a b l e P o w e r S u p p l y
10
T u t o r i a l
Function 1: DC Voltage
The Function knob
1. Turn the Function knob to the Constant DC
position (
). The display briefly shows F1
(for “Function 1”), then 0.00 (for zero volts).
The Voltage LED is lit, indicating that the
quantity displayed is voltage in units of
volts.
Set voltage
2. Turn the Coarse knob to set the voltage to
4.00 V. Note that the displayed voltage
reflects the actual voltage at the output ter-
minals.
Turn the Fine knob. If you rotate it slowly,
the voltage changes by 0.01 V per detent. If
you rotate the knob more quickly, it changes
by 0.04 V per detent. Adjust the voltage back
to 4.00 V.
Temporarily switch off output
3. Quickly press and release to temporarily
switch off the output. The Voltage LED
blinks rapidly, and the actual output voltage
drops to zero, though the display still shows
the voltage setting.
Turn the Coarse knob. Note that you can
adjust the voltage setting while the actual
output remains zero. Return the voltage set-
ting to 4.00 V
Press to switch the output back on. The
Voltage LED is now on steadily to indicate
that the output voltage is live.
SET
MAX
PLAY
PROGRAM
FUNCTION
Constant
DC
Rectangle
Wave
Ramp Stair
Set Maximum
Values
Enter
or Edit
Custom
Program
Play
Custom
Program
Voltage
LED blinks
rapidly.
Quickly
press and
release.