
Specifications and Characteristics 6
U3401A User’s and Service Guide 87
Frequency
Sensitivity for Voltage Measurement
Sensitivity for Current Measurement
Table 6 - 4 Frequency resolution and accuracy [± (% of reading + count)]
Range Measurement range Resolution Maximum reading
Accuracy (One year; 23°C
± 5°C)
500 Hz
5 Hz to 500 Hz 0.01 Hz 510.00 0.01% + 5
5 kHz
500 Hz to 5 kHz 0.0001 kHz 5.1000 0.01% + 3
50 kHz
5 kHz to 50 kHz 0.001 kHz 51.000 0.01% + 3
500 kHz
50 kHz to 500 kHz 0.01 kHz 999.99 0.01 %+ 3
Table 6 - 5 Sensitivity for voltage measurement
Range
Minimum sensitivity (RMS Sine-wave)
5 Hz to 100 kHz 100 kHz to 500 kHz
500 mV
35 mV 200 mV
5 V
0.25 V 0.5 V
50 V
2.5 V 5 V
500 V
25 V —
750 V
50 V —
Table 6 - 6 Sensitivity for current measurement
Range
Minimum sensitivity (RMS Sine-wave)
30 Hz to 20 kHz
500 μA
35 μA
5 mA
0.25 mA
50 mA
2.5 mA
500 mA
25 mA
5 A
0.25 mA (< 2 kHz)
10 A
2.5 A (< 2 kHz)
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