Measuring Ac Or Dc Current (Models 111 And 112); Measuring Frequency - Fluke 110 User Manual

Measuring AC or DC Current (Models 111 and 112)

WWarning
To avoid personal injury or damage to the Meter:
Never attempt to make an in-circuit current measure-
ment when the open-circuit potential to earth is
600 V.
Check the Meter's fuse before testing. (See "Testing
the Fuse")
Use the proper terminals, switch position, and range
for your measurement.
Never place the probes in parallel with a circuit or
component when the leads are plugged into the
current terminals.
Turn power OFF, break circuit, insert Meter in series, turn
power on.

Measuring Frequency

To avoid electrical shock, disregard the bar graph for
frequencies > 500 Hz. If the frequency of the measured
signal is > 500 Hz, the bar graph is unspecified.
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.
AC/DC Voltage Frequency
V
Hz
V
Hz
A
A
⇒
Press Hz to turn the frequency measurement function on and
off.
⇒
In frequency, the bar graph and range annunciator indicate
the AC or DC voltage or current present.
⇒
Select progressively lower ranges using manual ranging for a
aej08f.eps
stable reading.
True RMS Multimeters
Making Basic Measurements
WWarning
AC/DC Current Frequency
Hz
Hz
A
Hz
A
Hz
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9