Energy Measurement On Three Phase Balanced Systems - Amprobe ACD-51HP Manual De Instrucciones

4.3.9.1.

Energy measurement on three phase balanced systems

W3Φ
1. Select the "
2. Open the jaws and clamp the L3 phase cable. Pay attention to the alignment marks
(see paragraph 4.1.2. and Fig. 13).
3. Insert the red plug into V/Ω jack and the black plug into COM one.
4. Connect the red test lead to L1 phase conductor and the black test lead to L2 phase
conductor (see Fig. 13). The measured active power value and the symbol "AC" are
displayed.
5. If the symbol "
instrument's full scale. Therefore the power and power factor values could be incorrect.
6. Push ENERGY key and keep it pressed at least 1 second to active the energy
measurement.
7. By pressing the
• Active energy (kWh);
• Reactive energy (kVA
• Apparent energy (kVAh);
• TIME with indication of energy measurement duration.
8. Press the ENERGY key to activate the energy measurement. The counter is activated
and the message "MEASURING" is showed on the bottom of the display. Press again
ENERGY key to stop the energy measurement, the message "MEASURING"
disappears from the display.
9. If the reading were difficult, press D-H key to hold the obtained value. To escape this
function press the D-H key again.
10. If the measurement was performed in dark environments, press at least for 1 second
the key to activate the backlight that is automatically turned OFF after 5 seconds.
11. Push the ENERGY key and keep it pressed at least 1 second to escape from the
energy measurement.
" position.
" is displayed the input voltage and/or current value is higher than the
FUNC key the following parameters are displayed:
R
h, capacitive C, inductive I);
EN - 21
ACD-51HP - ACD-56HPQ