U3402A Datasheet, PDF (16/21 Pages) Keysight Technologies – U3400 Series 4½ and 5½ Digit Digital Multimeters

16 | Keysight | U3400 Series 4½ and 5½ Digit Digital Multimeters - Data Sheet
Supplemental measurement specifications (continued)
Measurement
Resistance
Diode/continuity
Resistance/
continuity
(U3402A only)
Frequency
Noise rejection
Input protection
Response time
Measurement method
Test current
Open-circuit voltage
Continuity threshold
Continuity level
Audible tone
Input protection
Measurement method
Test current
Open-circuit voltage
Audible tone
Zeroing error
Input protection
Measurement method
Crest factor
Signal level
Gate time
Input impedance
Maximum input voltage
Input protection
Response time
Common mode rejection ratio
(CMRR) for 1 kΩ unbalanced
LO lead
Normal mode rejection ratio
(NMRR)
Specification
500 V
U3401A
–– Approximately 1.5 seconds for 5 MΩ and ranges below 5 MΩ
U3402A
–– Approximately 1.5 seconds for 12 MΩ and ranges below 12 MΩ
–– Approximately 5 seconds for 40 MΩ
–– Approximately 10 seconds for 120 MΩ
–– Approximately 23 seconds for 300 MΩ
U3401A: 0.5 mA ± 0.2% constant current source, open circuit voltage limited to < 6 V
U3402A: 0.5 mA ± 0.2% constant current source, open circuit voltage limited to < 5 V
Approximately 0.5 mADC
U3401A: Limited to <+9 VDC
U3402A: Limited to <+9 VDC
10 Ω fixed
Approximately <+50 mVDC
Continuous beep for continuity and single tone for normal forward-biased diode or
semiconductor junction
500 V
2-wire ohms
Approximately 0.5 mADC
Limited to <+5 VDC
Continuous beep for continuity and single tone for normal forward-biased diode or
semiconductor junction
0.05 Ω or less (excluding test lead resistances) in each range when relative operation is used
500 V
Reciprocal counting technique. AC coupled input using AC voltage function
Maximum 3:0 at full scale
10% of range to full-scale input on all ranges; auto or manual range selection
0.1 second or 1 period of the input signal, whichever is longer
U3401A: 1 MΩ in parallel with <100 pF
U3402A: 1 MΩ ± 2% in parallel with <120 pF
U3401A: 1000 V RMS/1400 V PEAK
U3402A: 750 V RMS/1100 V PEAK
2x10⁷ V-Hz product on any range, normal mode input
1x10⁶ V-Hz product on any range, common mode input
750 V RMS on all ranges
Approximately 1.5 seconds when the displayed reading reaches 99.9% of frequency value
50/60 Hz ± 0.1%: DC >90 dB
50/60 Hz ± 0.1%: >50 dB