Metrix PX 110 Manual De Instrucciones página 31

I I I I I Single-phase characteristics
Display range
Measuring range
Accuracy at 50 Hz for cos ϕ =0.6
Resolution
The measurement is only accurate for sinusoidal signals
I I I I I Three-phase characteristics
Range
Specified measurement range
Accuracy at 50 Hz for sin φ ≥ 0.6
Resolution
The three-phase measurement includes the harmonic and inter-harmonic powers up to 1 kHz
3.4.5 Measurement of the power factor (PF)
1. Press the ON/OFF key: the first screen appears.
2. Connect the measurement leads to the instrument's current measurement terminals
(on the left), complying with the polarities indicated: red lead on the "+" terminal and
black lead on the "COM" terminal.
Connect the measurement leads to the instrument's voltage measurement terminals
(on the right), complying with the polarities indicated: red lead on the "+" terminal
and black lead on the "COM" terminal.
3. Set up as indicated in the connection diagrams in Fig.4.4.1 or Fig.4.4.2 (T3FE only
PX 120), depending on the case, making sure if possible that the maximum
acceptable limits are not exceeded (see table below). Range switching is automatic.
4. Press the DISPLAY key to display the 2nd screen:
- the lower display indicates the power factor and the symbol PF is displayed.
I I I I I Characteristics
Display range
Measuring range
Accuracy
Resolution
Note 1: The power factor display is limited to à 1.00 and remains undetermined
" - - - " when S < 5 VA or S = OL.
Note 2: The power factor measurement is not a signed measurement.
Wattmeters
1000 VA
10.0 VA...999.9 VA
2%% of reading ±2 cts
0.1 VA
1000 VA
10.0 VA...999.9 VA
3% of reading ±2 cts
0.1 VAR
1.00
0.00 - 0.20 0.21 - 0.50
10% ± 2 cts 5% ± 2 cts
0.01
Chapter III
6 kVA
1000 VA...5999 kVA
2% of reading ±2 cts
1 VA
6 kVA
1000 VA...5999 kVA
3% of reading ±2 cts
1 VAR
0.51 - 1.00
3% ± 2 cts
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