Power Measurements - FLIR CM83 User Manual

5 Operation
3. Press and hold the
5.5.3.7 Harmonic Distortion mode
In Harmonic Distortion mode, the meter displays the distortion percentage value
for the first 25 harmonics as well as the total harmonic distortion. Harmonic Dis-
tortion mode is available when measuring AC current or voltage in Manual select
mode.
The harmonic distortion is expressed as H
)/(RMS of the fundamentals) × 100%.
1. Use the navigation buttons to select
mode.
2. While in Harmonic Distortion mode, use the
to navigate through the individual and total harmonic data.
3. When the total harmonic distortion is displayed, the
the upper part of the display.
4. Press and hold the
5.5.3.8 LPF mode
In LPF mode, high-frequency noise is eliminated from the voltage measurement
by a low-pass filter (LPF). LPF mode is intended for measurements on variable-
frequency drives (VFDs). LPF mode is available when measuring AC current or
voltage in Manual select mode.
1. Use the navigation buttons to select

5.6 Power measurements

5.6.1 Single-phase power measurements
1. Set the function switch to the
2. Insert the black probe lead into the negative COM terminal and the red probe
lead into the positive W terminal.
#T559825; r.8008/8011; en-US
button to disable Min/Max/Avg mode.
= (RMS of an individual harmonic n
n
and enable Harmonic Distortion
button to disable Harmonic Distortion mode.
and enable LPF mode.
position.
and navigation buttons
indicator appears in
17