S U P P L E M E N T A L I N F O R M A T I O N
6
Troubleshooting
What if the meter will not turn on?
First make sure it’s plugged in; if this is the case get a TA for assistance, the
meter may have a blown fuse or need repair.
The meter is on, but is not taking any readings when it’s connected to the circuit.
Make sure to check that the probe inputs have been inserted in the proper configuration, for
this check back in the “Making Measurements, Section 2” (Notice: voltage and current are
different).
Next, check to make sure that the Front/Rear input selection button is not depressed (located
in the probe input panel to left of the “current (
I
)” input.
The probe inputs are correct, but when the meter is connected to the circuit the meter reads invalid values or does
not read at all.
Check that the meter is connected to the circuit in the correct orientation. It must be
connected in series for current readings and in parallel for voltage, frequency and resistance.
Check back in the “Making Measurements, Section 2” for more information.
Where to Find More Help
Ø
The complete manual on the HP website:
http://www.tm.agilent.com/classes/MasterServlet?view=HomePage&language=eng&locale=
US
Ø
The Lab Manual
Ø
Lab TA
References
[1]
“HP 34401A user’s manual,” [Online document], Feb. 1996, Available HTTP:
http://cp.tm.agilent.com/data/downloads/eng/tmo/manuals/
pdf/34401A_UsersGuide_English.pdf
Section
3
