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Function 5: set max – PASCO PI-9880 Power Supply User Manual

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T u t o r i a l

Change display

4.

Quickly press and release

. The Current

LED lights, and the display now shows out-
put current in amps. Press

a few times to

toggle the display between current and volt-
age.

While viewing current on the display, turn
the Coarse and Fine knobs. You are actually
adjusting the voltage, but you see the result-
ing current change on the display.

Set display-toggle time

5.

Press and hold

until the Time LED starts

blinking, and the display shows 0; while
holding the button, turn the Coarse knob to
change the display to 2. Release the button.
The display now automatically toggles
between current and voltage every 2 sec-
onds.

Press

to pause the display toggling; press

again to resume.

Reset output and display

6.

Press and hold

until the display shows

0.00. Release the button. You have just reset
the output voltage to zero and the display to
voltage.

For more information about constant DC output, see
page 19.

Function 5: SET MAX

Set maximum voltage

1.

Turn the Function knob to SET MAX. The
display briefly shows F5 (for “Function 5”)
followed by 18.00, which is the Power Sup-
ply’s voltage-limit setting. (Note that the
actual output voltage is zero.)

Turn the Coarse knob to set the voltage limit
to 10 V.

Turn the Function knob back to Constant DC
mode (

). Try to adjust the output voltage

to over 10 volts.

2.

Turn the Function knob back to SET MAX.
Press

once to display the maximum-

current setting. Turn the Coarse and Fine
knobs to adjust the maximum current to
0.210 A.

Quickly

press and

release.

Press

and

hold.

The TIME

LED starts

blinking.

Press

and hold.