AEMC 407, Руководство пользователя

Страница: 32 / 84

32
3.10 POWER MEASUREMENTS W, VA, VAR AND PF
This measurement is possible in single-phase or in balanced 3-phase.
NOTE: If performing DC or AC+DC power measurements, correct the DC zero in
current first (see § 3.8.2)
For the power factor (PF) and VA and var, the measurements possible are only
available in AC or AC+DC modes.
3.10.1 Single-Phase Power Measurement
1. Set the switch to and select VA , var , or PF by pressing the
button until the desired choice is reached.
2. The device automatically displays AC+DC . To select AC, DC, or
AC+DC, press the (yellow button) until the desired choice is
reached.
3. Connect the black lead to the COM terminal and the red lead to the " + "
terminal.
4. Connect the test probes or the alligator clips of the black lead on the
neutral (N), then those of the red lead on the L phase.
5. Clamp around only the corresponding conductor, respecting the
direction.
The measurement is displayed on screen.
Display Quantity
1st row Active power W (DC, AC or AC+DC)
2nd row Reactive power var (AC or AC+DC)
3rd row Apparent power VA (AC or AC+DC)