Technical data

Specifications 8
U1401A User’s and Service Guide 151
Frequency specifications
Frequency sensitivity and trigger level for voltage measurement
For the maximum input voltage- frequency product (V- Hz)
and input impedance, refer to AC voltage measurement.
Table 8 - 8 Frequency specifications
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
Table 8 - 9 Frequency sensitivity and trigger level specifications for voltage measurement
Input range
(Maximum input for specified
accuracy = 10 × range or 250 V)
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 V0.5 V0.6 V0.8 V
50 V 3 V5 V6 V8 V
250 V 30 V — 60 V —