22 34405A User’s and Service Guide
1 Getting Started Tutorial
Making Measurements
The following pages show how to make measurement
connections and how to select measurement functions from
the front panel for each of the measurement functions.
For remote operation, refer to the MEASure Subsystem in
the Agilent 34405A Online Programmer’s Reference online
help.
Measuring AC or DC Voltage
AC Voltage:
• Five Ranges: 100.000 mV, 1.00000 V, 10.0000 V, 100.000 V, 750.00 V
• Measurement Method: AC coupled true rms - measures the AC component with
up to 400 VDC bias on any range.
• Crest Factor: Maximum 5:1 at full scale
• Input Impedance: 1 MΩ ± 2% in parallel with <100pF on all ranges
• Input Protection: 750V rms on all ranges (HI terminal)
DC Voltage:
• Five Ranges: 100.000 mV, 1.00000 V, 10.0000 V, 100.000 V, 1000.00 V
• Measurement Method: Sigma Delta A-to-D converter
• Input Impedance: ~10 MΩ all ranges (typical)
• Input Protection: 1000V on all ranges
(HI terminal)
ACV
DCV
12A
rms
1000VDC
500Vpk
1.2A
rms
1.25A/500V FH
LO
CAT II (300V)
750VAC
HI
I
V
12A
Fused
AC or DC Voltage Source
mV DC
mV DC
Range
Typical DCV Display:
mV
mV AC
Range
AC
Typical ACV Display:
+
-
34405A users guide.book Page 22 Saturday, September 2, 2006 3:38 PM