Fluke FLK-3000FC-GM [31/46] Frequency measurement

Wireless Multimeter

Basic Measurements

Frequency Measurement

A frequency measurement is a count of the number of

times an ac voltage or current signal passes through a

threshold point each second.

The Product autoranges to one of four frequency ranges:

99.99 Hz, 999.9 Hz, 9.999 kHz, and 99.99 kHz.

Hints for frequency measurements:

• If a measurement shows 0 Hz or is not stable, the

input signal can be below or near a trigger level. A

lower range increases the sensitivity of the Product

and can usually repair these problems.

• An input signal with distortion can cause a frequency

measurement to be higher than usual. The distortion

can cause the frequency counter to sense multiple

triggers. A higher voltage range decreases the input

sensitivity and can correct this problem. In general,

the lowest frequency is the correct one.

Set up the Product as shown in Figure 8 to measure

frequency.