Instruction Manual 012-10425A Function Generator PI-8127 Waveform Selection button Frequency Adjust knob and Range Selection button Menu button Voltage Adjust knob and Menu Selection button Liquid Crystal Display (LCD) Power button Included Equipment Output Standby button Resolution Selection buttons Output jacks (4 mm) Part Number Function Generator AC to 15 V DC, 1.
Function Generator Introducti on Introduction The PASCO Function Generator outputs waveforms that include DC (direct current) as well as sine, square, triangle, positive ramp, and negative ramp with a frequency range of 0.001 Hz (hertz) to 100 kHz (kilohertz). The sine waveworm retains its form up to a frequency of 150 kHz, but the other waveforms will show some distortion above 100 kHz.
Model No.PI-8127 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 Operation NOTE: To set up the frequency, voltage, and other parameters without outputting a signal, press the OUTPUT STANDBY button. The Frequency Adjust knob serves two purposes. Turn the knob to change the frequency.
Function Generator Operation Voltage Adjust: To move the underline from the Frequency part of the LCD to the Voltage part of the LCD, turn the Voltage Adjust knob one “click” to the left or right. Notice that the underline is below the “ones” place in the display (0.00 V). Turn the knob one “click” to the right (clockwise) to increase the voltage output. Each “click” to the right (clockwise) or left (counterclockwise) will increment or decrement the digit that is underlined in the display.
Model No.PI-8127 Operation DC voltage adjust screen Continue to turn the Voltage Adjust knob counterclockwise to reveal the next five waveform choices: External, Mod Sine, Mod Triangle, Mod Pos Ramp, and Mod Neg Ramp. (“Mod” is an abbreviation for “modulated”.) Last WAVEFORM menu External Input: The External waveform choice corresponds to the use of an external input to the Function Generator. The generator has positive and negative input jacks on the rear panel. Maximum input voltage is ±10 V.
Function Generator Operation 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. Press the MENU button or the Voltage Adjust knob to return to the MENU choices.
Model No.PI-8127 Operation • Single: The frequency ‘sweeps’ from the initial frequency to the final frequency one time. • Repeat: The frequency ‘sweeps’ between the initial and final frequencies repeatedly. • Bidir (bidirectional): The frequency sweeps from the initial frequency to the final frequency and then back to the initial frequency repeatedly. Press the Voltage Adjust knob as if it were a button to ‘step through’ the Sweep choices.
Function Generator Some Suggested Uses Other Current Several displays show the root mean square (‘rms’) output current (0.00A rms). The Function Generator calculates the true root mean square of the output current, not just the peak current divided by the square root of two. The output current depends on the output voltage and the resistance of the device or circuit to which the generator is connected. For example, if you set the generator to output 5.
Model No.PI-8127 Specifications Specifications Input Power 15 V at 1.6 A Voltage Output ±10 V at up to 1 A Frequency Range DC to 100 kHz with two ranges: 0.001 Hz to 999.999 Hz and 0.001 kHz to 100.000 kHz (150 kHz for Sine Wave) Frequency Resolution 0.
