Tips for Using the Electronics Lab Equipment

Fall Quarter, 2015


Last Updated August 15, 2015

Comments about Agilent 33120A Function Generator (specifications)

Issue Comment
Load Impedance

The factory default assumes a 50 W load. Accordingly, the function generator supplies a voltage that would produce the desired waveform in a 50 W load. If your actual load differs from 50 W, the waveform at your load will differ from the desired waveform. Therefore, unless you have a 50 W load, you should set the function generator Output Termination to the high impedance option:

Select D: SYStem MENU with shift-enter, then the right arrow a few times then the down arrow.

Select 1: OUTput TERMination with the down arrow.

Select the high impedance option with the right arrow followed by enter.
DC Voltage Source Normally, the function generator prefers to supply a DC voltage and an AC voltage. To supply only a DC voltage, enter the DC voltage mode by pressing the Offset key and hold it down for more than 2 seconds. Note that you can supply DC voltages only in the range ±5 V.
HPIB Address

The factory default is 10.

In case it has changed for some reason, you may return it to 10 thru the menu:

Select E: I/O MENU with shift-enter, then the right arrow a few times then the down arrow.

Select 1: HPIB ADDRess with the down arrow.

 

Comments about HP 54645 Oscilloscope (specifications)
Topic Comment
XY Plot

To plot the voltage on trace 2 versus the voltage on trace 1 rather than as a function of time:

Press the Main/Delayed button.

Select the XY option using the softkeys under the display.
Vectors For time trace measurements, the scope can display the sampled data points (vectors off) or it can connect the dots (vectors on). To toggle this option, press the Display button and use the appropriate softkey under the display.
HPIB Address The factory default is 7.

In case it has changed for some reason, you may return it to 7:

Press the Print/Utility button

Select the I/O Menu option using the softkeys under the display.


Comments about Keithley 2400 SourceMeter (specifications, User Manual)
Topic Comment
Current Compliance The current compliance value specifies the maximum current supplied by the instrument. The default current compliance value of 105uA is often too low for our needs. To increase the compliance value, press the edit key twice to highlight the current compliance level. Increase the range by several orders of magnitude with the range up arrow key to set a more useful level. Enter the desired compliance value with the numerical keys or arrow keys.
GPIB Address The factory default is 24.

In case it has changed for some reason, you may return it to 24 via the menu:

Press the menu key.
Press the right arrow keyto highlight "COMMUNICATION"
Press the enter key
Highlight GPIB and press the enter key
Select the desired address.


Comments about Agilent 34401A Digital Multimeter (specifications)
Topic Comment
 
 
HPIB Address The factory default is 22.

In case it has changed for some reason, you may return it to 22 thru the menu:

Select E: I/O MENU with shift-enter, then the right arrow a few times then the down arrow.

Select 1: HPIB ADDRess with the down arrow.


Comments about Agilent 3640A DC Voltage Source (specifications)
Topic Comment
 

 
HPIB Address The factory default is 05.

In case it has changed for some reason, you may return it to 05 by pressing the I/O Config button twice.

If you have any additional comments, please notify me by e-mail !

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