Getting Started
1
Keysight U3401A User’s and Service Guide
39
Performing frequency measurements
– Five ranges:
– 500.00 mV, 5.0000 V, 50.000 V, 500.000 V, 750.000 V
– Range is based on the voltage level of the signal, not frequency
– Measurement method: Reciprocal counting technique. AC coupled input using
AC voltage function
– Signal level: 10% of range to full scale input on all ranges
– Gate time: 0.1 s or 1 period of the input signal, whichever is longer
– Input protection: 1000 V RMS on all ranges
1
Press .
2
Connect the red and black test leads to the input terminal as shown in
.
3
Probe the test points and read the display. In autoranging mode, the multimeter
automatically selects the appropriate range and the measurement is displayed
.
Figure 1-14
Frequency terminal connection and display
WARNING
Use the frequency counter for low voltage applications. Do not use the
frequency counter on AC power line systems.
Frequency
source
+
–
