PASCO PI-9880 Power Supply - Manual (Page 13)

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13
T u t o r i a l
Function #2: Rectangle Wave
Rectangle Wave
1. Turn the Function knob to Rectangle Wave
(
). The display briefly shows F2, then
0.00 (the rectangle wave’s maximum-voltage
setting).
2. Turn the Coarse knob to set the maximum
voltage to 6.00 V. Note that the actual output
voltage is zero (the Voltage LED blinks to
indicate that the displayed voltage is not
live).
3. Press to start running the function: a 6 V
positive square wave with a 2 s period.
(Note the START label printed above the
button, which indicates what happens when
you press the button.)
4. Try turning the Coarse and Fine knobs; the
knobs have no effect when the function is
running.
5. Press and hold for about 1 second to stop
running the function.
(Note the STOP label printed below the but-
ton, which indicates what happens when you
press and hold the button.)
Minimum voltage set to 2 V
6. Press and hold (SET); the Voltage LED
starts blinking fast and the display shows the
minimum-voltage setting; while holding the
button, turn the Coarse knob to adjust the
minimum voltage to 2.00 V. Release the but-
ton.
Press (START). The output voltage now
alternates between 6 V and 2 V.
Press and hold (STOP).