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Wireless Multimeter
Basic Measurements
27
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.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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