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Application Notes
When measuring AC Amps of a motor there
are two types of measurements that can be
made, running current and in-rush or start-up
current. Start-up current will usually be much
higher than running current.
Set up the meter following the steps under
“Measurement Procedure” on page 20, and
then proceed with the following:
•
Clamp the meter around a single wire
and reconnect power to the device.
Read the current displayed on the meter.
This is the running current of the motor.
•
Disconnect power to the motor and put
the meter in PEAK HOLD mode.
Reconnect the power and read
the current displayed on the
meter. This is the in-rush or
start-up current
of the motor.
13
D. MEASUREMENT TECHNIQUES
1. Controls and Functions:
Push Buttons
TRIM
Activates TRIM, PEAK and HDR
functions (Except on Frequency
Range).
FUNC
Toggles between AC and DC volts,
amps and
Ω
or functions.
RNG
Activates manual ranging. Hold in
for 2 seconds to return to
autorange.
HOLD
Holds the reading on the display
until the button is pushed a
second time.
REC
Activates the Min/Max/Record
mode. (Except on Frequency
Range).
