Technical data

6 Specifications and Characteristics
90 U3401A User’s and Service Guide
DC current
• Shunt resistance
• 0.01 W to 100 W for 500 μA to 10 A ranges
• Response time
• Approximate 1.0 second when the displayed reading reaches 99.9% DC value of the tested
input signal at the same range.
AC voltage (True RMS AC Coupling Mode)
• Measurement method
• AC coupled true RMS – measure the AC component with up to 400 VDC bias on any range
• Crest factor
• Maximum 3:0 at full scale
• Input impedance
• 1 MΩ in parallel with <100 pF of all ranges
• Maximum input voltage
• 1000 V RMS / 1400 V PEAK
• 2x10
7
V-Hz product on any range, common mode input
• 1x10
6
V-Hz product on any range, normal mode input
• Overload ranging
• Will select higher range if peak input overload is detected during autoranging. Overload is
reported in manual ranging.
• Input protection
• 1000 V on all ranges
• Response time
• Approximate 1.5 second when the displayed reading reaches 99.9% AC value of the tested
input signal at the same range.
Table 6 - 9 Measurement specifications (continued)