Technical data

152 U1401A User’s and Service Guide
8 Specifications
Duty cycle
[1]
Pulse width
[1, 2]
[1]
The accuracy for duty cycle and pulse width is based on a 5 V square wave input
to the DC 5 V range.
[2]
Pulse width must be greater than 10 µs and its range and resolution are
determined by the frequency of the signal. Refer to Table 8-8 for details.
Frequency sensitivity for current measurement
For maximum input, refer to AC voltage measurement.
Table 8 - 10 Duty cycle specifications
Mode Range Accuracy at full scale
DC coupling 0.1% to 99.9% 0.3% per kHz + 0.3%
AC coupling 5% to 95%
Table 8 - 11 Pulse width specifications
Range Accuracy at full scale
0.01 ms to 1999.9 ms 0.2% + 3
Table 8 - 12 Frequency sensitivity specifications for current measurement
Input range
Minimum sensitivity (rms sine wave)
30 Hz to 20 kHz
50 mA 2.5 mA
500 mA 25 mA