PASCO PI-8127 Function Generator - Manual (Page 6)

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Function Generator Operation
6
V Offset (voltage offset): The default voltage offset in the Voltage Offset display is
0.00 V. Use the Voltage Adjust knob and the Resolution Buttons to increase or
decrease the DC voltage. Any waveform can be offset up or down with a DC voltage
ranging from -10 V to +10 V, provided the peak voltage does not exceed 10 V.
V Limit (voltage limit): The default maximum voltage in the Voltage Limit display
is 10.00 V. Use the Voltage Adjust knob and the Resolution Selection buttons to
change the maximum voltage from 10.00 V to another voltage. The minimum voltage
is 0.00 V.
I Limit (current limit): The default maximum current in the Current Limit display is
1.50 A. Turn the Voltage Adjust knob to change the maximum current from 1.50 A to
1.10 A or to 0.55 A. Press the Voltage Adjust knob as if it were a button to select the
current limit. Setting the maximum current is useful when there needs to be a limit to
the current applied to a circuit. This is a safety feature to protect against short circuit
overload.
Backlight: The default backlight setting is “High”. Use the Voltage Adjust knob to
select the menu choice. Press the Voltage Adjust knob as if it were a button to toggle
(switch) to the other choice: “Low”. The Low setting is useful when the Function
Generator is in a darkened environment.
Sweep: Turn the Voltage Adjust knob so the pointer is next to Sweep and then press
the knob as if it were a button to select the choice. The default setting is “Off”.
The Sweep menu options offer several ways to tailor the output signal for specific
needs. The Sweep function is set up so that the output signal begins at a specific fre-
quency (Initial) and ends at another specific frequency (Final). The ‘sweep’ between
frequencies can be set to last for a certain time (Duration), and the step frequency
(Step) can also be set for a specific amount..
The Sweep function can be set to one of the following:
• Off: The default setting.
Press the MENU button or the
Voltage Adjust knob to return
to the MENU choices.
Press the MENU button again
to return to the screen before
the MENU button was
pressed the first time.
Voltage
Offset
display
Voltage
Limit
display
Current
Limit
display
NOTE: As the current approaches
the limit, “Overcurrent” will be dis-
played at the bottom of the LCD. The
“Overcurrent” warning will be dis-
played at approximately 1.2 A for the
1.50 A limit, 1.0 A for the 1.10 A limit,
and 0.5 A for the 0.55 A limit.
Backlight Low
Sweep options