Datasheet

Input Specications
Frequency specications
Range Resolution Accuracy Minimum input frequency Overload protection
100 Hz 0.001 Hz
0.02% + 3 1 Hz 250 Vrms
1 kHz 0.01 Hz
10 kHz 0.1 Hz
100 kHz 1 Hz
200 kHz 10 kHz
Frequency sensitivity and trigger level for voltage measurement
Input range Minimum sensitivity (rms sine wave) Trigger level for DC coupling
1 Hz to 100 kHz > 100 kHz < 20 kHz 20 kHz to 200 kHz
50 mV 15 mV 25 mV 20 mV 30 mV
500 mV 35 mV 50 mV 60 mV 80 mV
5 V 0.3 V 0.5 V 0.6 V 0.8 V
50 V 3 V 5 V 6 V 8 V
250 V 30 V – 60 V –
Frequency sensitivity for current measurement
Input range Minimum sensitivity (rms sine wave)
30 Hz to 20 kHz
50 mA 2.5 mA
500 mA 25 mA
Duty cycle and pulse width
Function Mode Range Accuracy at full scale
1
Duty cycle DC coupling 0.1% to 99.9%
0.3% per kHz + 0.3%
AC coupling 5% to 95%
Pulse width
2
– 0.01 ms to 1999.9 ms 0.2% + 3
1. Accuracy is based on a 5-V square-wave input to the 5 VDC range.
2. Pulse width must be greater than 10 µs and its range is determined by the frequency of the signal.
06 | Keysight | U1401B Handheld Multi-function Calibrator/Meter - Data Sheet