Specifications
6
34405A User’s and Service Guide
131
•
Crest Factor:
•
Maximum 5:1 at full scale
•
Input Impedance:
•
1M
Ω
± 2% in parallel with < 100pF of all ranges
•
Input Protection:
•
750V rms on all ranges (HI terminal)
AC Current
•
Measurement Method:
•
DC coupled to the fuse and current shunt, AC coupled true rms measurement (measures the
AC component only)
•
Shunt Resistance:
•
0.1
Ω
to 10
Ω
for 10mA to 1.2A range
•
0.01
Ω
for 12A range
•
Input Protection:
•
Externally accessible 1.25A, 500V FH fuse for I terminal
•
Internal 15A, 600V fuse for 12A terminal
Frequency
•
Measurement Method:
•
Reciprocal counting technique. AC coupled input using AC voltage function.
•
Signal Level:
•
10% of range to full scale input on all ranges
•
Auto or manual range selection
•
Gate Time:
•
0.1 second or 1 period of the input signal, whichever is longer.
•
Input Protection:
•
750V rms on all ranges (HI terminal)
Table 29
Supplemental Measurement
Specifications
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