PASCO PI-9880 Power Supply - Manual (Page 26)

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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 S t a n d a r d F u n c t i o n s ( R e c t a n g l e , R a m p , a n d S t a ir )
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3. To set the Period, press (DISPLAY). The Time LED lights, and the display
shows the Period in seconds. Turn the Coarse and Fine knobs to set the Period.
The smallest increment by which you can change the Period depends on its value,
as summarized below.
4. To set the Auto-repeat parameter, press and hold (SET) until the Time LED
starts blinking fast. While holding the button, turn the Coarse and Fine knobs to
adjust Auto-repeat between -999 and 999.
To run the Ramp function, press (START). See “Standard Functions Run Mode”
on page 29 for further instructions.
Period (seconds) Adjustment increment (seconds)
−999 to −100 1
−99.9 to −10.0 0.1
−9.99 to −0.10 0.01
0.10 to 9.99 0.01
10.0 to 99.9 0.1
100 to 999 1