Frequency Counter - Fluke 8588A Operator's Manual

Frequency Counter

From the More menu, push  (Frequency) to use the Frequency Counter
measuring function. The Frequency Counter measuring function defaults to using
the rear panel BNC connector to make frequency measurements. The input is
selected using  (Measure Setup). When in ACV, the V INPUT HI and LO
terminals are used to measure frequency of an ACV signal, and the rear BNC is
de-selected. When in ACI, the A INPUT HI and LO terminals are used to
measure frequency of an ACI signal, and the rear BNC is de-selected.
The default Frequency Counter measuring screen is shown below. The input field
shows which connector is selected to measure the input signal. The lower status
field shows coupling (ac or dc) and the counter gate time (100 μs to 1 s). See the
screen below:
Frequency Counter Menu
This section explains the Frequency Counter menus when the rear BNC is
selected.
 (Gate): selects the counter gate time: 100 μs, 1 ms, 10 ms, 100 ms, or
1 s. Use the navigation keys or the appropriate softkeys to select. The gate times
affect the Counter resolution as shown in Table 14. In Frequency, gate times are
not affected by the input channel or RMS filter settings in ACV or ACI. When you
use frequency as a secondary reading, gate times are affected by the RMS filter
settings in ACV or ACI. See ACV Menu and ACI Menu.
Reference Multimeter and 8 ½ Digit Multimeter
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