MI 3108 EurotestPV
Measurements - Power & energy
86
Harmonics measurement procedure
Select
HARMONICS
sub-function using the function selector keys and
/
keys.
Connect
voltage test leads and current clamp to the instrument.
Connect
the voltage test leads and current clamp to the item to be tested (see
figure 7.2).
Press the
TEST
key to start the continuous measurement.
Press the
TEST
key again to stop the measurement.
Store
the result by pressing the
MEM
key (optional)
Figure 7.5: Examples of Harmonics measurement results
Displayed results for the Harmonics measurements:
Uh............ TRMS voltage of selected harmonic
Ih ............. TRMS current of selected harmonic
THDU……voltage total harmonic distortion
THDI…… . voltage total harmonic distortion
Notes
:
Parameters (input and number of harmonic) can be changed and results can also
be stored while the measurement is running.
Displayed graph is auto-ranged.
7.3 Scope
The Scope function is intended to check the shape of voltage and current.
See chapter 4.2 Function selection for
instructions on key functionality.
Figure 7.6: Scope menu
Settings and parameters in Scope function
Input
Displayed parameters [ voltage U or current I or both]
Connection for the Scope measurement
(See figure 7.2)