Performing Frequency Measurements; Figure 2-5 Frequency Terminal Connection And Display - Agilent Technologies U3401A User's And Service Manual

Performing Frequency Measurements

Use the frequency counter for low voltage applications. Do not use the frequency
WARN IN G
counter on AC power line systems.
Measuring frequency
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 2-5 Frequency terminal connection and display

U3401A User's and Service Guide
• Four ranges:
• Measurement method:
• Signal level:
• Gate time:
• Input protection:
.
Figure 2- 5.
+
Frequency
source
–
500.00 Hz, 5.0000 Hz, 50.000 Hz, 500.000 Hz, 750.00 V — range is
based on the voltage level of the signal, not frequency.
Reciprocal counting technique. AC coupled input using AC
voltage function.
10% of range to full scale input on all ranges
0.1 s or 1 period of the input signal, whichever is longer
1000 V RMS on all ranges
Operations and Features 2
25