Fluke 115C User Manual page 16

115C and 117C
Users Manual
Measuring Frequency
XWWarning
To avoid electrical shock, disregard the bar
graph for frequencies >1 kHz. If the
frequency of the measured signal is >1 kHz,
the bar graph and Z are unspecified.
AC Voltage Frequency
The Meter measures the frequency of a signal by counting
the number of times the signal crosses a trigger level each
second. The trigger level is 0 V, 0 A for all ranges.
14
AC Current Frequency
VoltAlert
Hz
edy09f.eps
Press g to turn the frequency measurement function
on and off. Frequency works with ac functions only.
In frequency, the bar graph and range annunciator indicate
the ac voltage or current present.
Select progressively lower ranges using manual ranging
for a stable reading.
Detecting AC Voltage Presence (117C only)
Hot
VoltAlert
VoltAlert
Neutral
VoltAlert
RANGE
Lo
edy13f.eps