®
Model No.PI-8127
Operation
3
Output:
Connect a device such as a speaker, wave driver, or electrical circuit to the
output jacks at the lower right corner of the front panel.
Frequency Adjust
The Frequency Adjust knob serves two purposes. Turn the knob to change the fre-
quency. Press the end of the knob as if it were a button to toggle between the two fre-
quency ranges.
Range Selection:
The default range is 0.001 kHz to 100.000 kHz or 150.000 kHz for
the sine waveform (other waveforms are distorted above 100 kHz). The other range is
0.001 Hz to 999.999 Hz. Press the end of the Frequency Adjust knob as if it were a
button to switch between ranges. The default frequency for the lower range is 1.000
Hz.
Frequency Adjust
: The default frequency for the default range is 1.000 kHz. Notice
that the “1” is underlined in the display. This indicates that this is the digit that will
change first when you turn the knob. For example, turn the knob one “click” to the
right (clockwise), and the frequency increases to 2.000 kHz. Each “click” to the right
(clockwise) or left (counterclockwise) will increment or decrement the
digit that is
underlined
in the display. When you reach 9.000 kHz, the next “click” to the right
will change the frequency to 10.000 kHz. Notice that the underline stays
below the “ones” place. Turning the frequency knob one more “click” to the
right changes the frequency to 11.000 kHz.
As a second example, if the frequency is 1.000 kHz, turning the Frequency Adjust
knob one “click” to the left (counterclockwise) does not decrease the frequency to
0.000 kHz. Instead, the frequency stays at 1.000 kHz (it is not possible to have zero
frequency). To lower the frequency, press the right-hand Resolution Selection button
to move the underline to the right (1.000 kHz) and then turn the Frequency Adjust
knob counterclockwise one “click” to decrease the frequency to 0.900 kHz.
Resolution Selection:
Use the Resolution Selection buttons beneath the Frequency
Adjust knob to change the active (underlined) digit in the display. Pushing the left
button moves the underline to the left and pushing the right button moves the under-
line to the right.
Use both the Frequency Adjust knob and the Resolution Selection buttons to set the
frequency. Remember that you can push the OUTPUT STANDBY button to disable
the output while you adjust the frequency, and then push the button again to enable
the output when you have the frequency set the way you want.
Clear Feature:
While adjusting the frequency, you can clear (zero) all the digits to
the right of the underline cursor by pressing the Voltage Adjust knob as if it were a
button.
Voltage Adjust
The Voltage Adjust knob serves three purposes.
•
Turn the knob to change the output voltage.
•
When the LCD shows the waveform list or the menu, turn the Voltage Adjust
knob to move the pointer up or down in the list or in the menu.
•
Press the knob as if it were a button to select a choice from the waveform list or
from the menu.
Press the Frequency Adjust
knob to change the range.
NOTE: You can conveniently go
to the lowest frequency without
overshooting by rapidly turning
the Frequency Adjust knob.
Resolution Selection buttons
Press the Voltage Adjust
knob to select a waveform
or menu item
NOTE
:
To set up the frequency, volt-
age, and other parameters
without outputting a signal,
press the OUTPUT
STANDBY button.
Make the adjustments, and
press the OUTPUT
STANDBY button again to
begin the signal.
