Hi guys,
I have problem with my Multimeter Agilent 34401A.
I would like to measure DC Current on multimeter. It is connected between PSU (Agilent E3531A or Agilent E3648A) and my device (4.8V). but my multimeter shows . Consequently, my device can't boot.
However, it worked fine before.
To be sure, that my setup is fine, I've connected Handheld Digital Multimeter (Agilent U1271A True RMS 4 1/2 Digit) instead of Multimeter Agilent 34401A. It measures current and my device could boot.
Do you have any idea what should I do? Did I blow a fuse?
Commands which I send to:
*PSU*
+SOUR:VOLT 4.8+
+SOUR:VOLT?+
++4.80000000E+00+
+APPLY?+
+"4.800000,5.000000"+
+OUTPUT ON+
*MULTIMETER*
CONF:CURR:DC 1,MAX
-> SAMP:COUNT 10
-> READ?
<- -5.97915835E-05,-1.95310535E-04,-8.94606466E-05,-7.66342831E-05,-3.65357021E-05,-5.33784017E-05,-4.93620657E-05,-1.56831445E-04,-4.93620657E-05,-1.92913690E-04
In attachment you can find picture which represents my setup.
Edited by: knightwhosayni on Jan 16, 2014 4:56 AM
I have problem with my Multimeter Agilent 34401A.
I would like to measure DC Current on multimeter. It is connected between PSU (Agilent E3531A or Agilent E3648A) and my device (4.8V). but my multimeter shows . Consequently, my device can't boot.
However, it worked fine before.
To be sure, that my setup is fine, I've connected Handheld Digital Multimeter (Agilent U1271A True RMS 4 1/2 Digit) instead of Multimeter Agilent 34401A. It measures current and my device could boot.
Do you have any idea what should I do? Did I blow a fuse?
Commands which I send to:
*PSU*
+SOUR:VOLT 4.8+
+SOUR:VOLT?+
++4.80000000E+00+
+APPLY?+
+"4.800000,5.000000"+
+OUTPUT ON+
*MULTIMETER*
CONF:CURR:DC 1,MAX
-> SAMP:COUNT 10
-> READ?
<- -5.97915835E-05,-1.95310535E-04,-8.94606466E-05,-7.66342831E-05,-3.65357021E-05,-5.33784017E-05,-4.93620657E-05,-1.56831445E-04,-4.93620657E-05,-1.92913690E-04
In attachment you can find picture which represents my setup.
Edited by: knightwhosayni on Jan 16, 2014 4:56 AM
The first one is situated on the rear panel of the instrument, you can easily check it with your handheld DMM.
If that's not the root cause, you might test, if the rear panel current input is working; perhaps there's a problem with the front/rear switch.
Setting the 34401A to DC current, you may also check the front and rear DC current / LOW input jacks for continuity with your handheld.
There's also a 2nd, slower fuse inside the instrument.
See operators manual, Ch.3, p.100, replace DC current fuses.
Frank