5.4 MEASURE Screen
APS-1102 Programmable AC/DC Power Source
5-26
5.4.6
Output harmonic current measurement
Output harmonic current measurement is enabled only in the AC-INT mode and when the frequency
setting is 50 or 60 Hz.
When HC1, HC2, HC3, or HC4 is selected under “MEASURE” in the MISC menu, the harmonic
measurement window is displayed.
At that time, measurements other than output harmonic measurement are not performed. This
measurement does not comply with the IEC standards.
See
“4.3 Measurement of Harmonic Current”
.
Measurement range:
To 40th harmonic of fundamental wave
Full scale:
15 Arms and 100%
Display resolution:
0.01 Arms and 0.1%
Measurement accuracy: ±1% of full scale at RMS value current (to 20th harmonic at 23
5°C),
±1.5% of full scale at RMS value current (from 20th to 40th harmonic at 23
±5°C)
5.4.7
External synchronization frequency measurement
The frequency measured value is displayed only in the external synchronization mode (AC-SYNC or
AC+DC-SYNC).
See “4.7 Synchronization of Output to External Signal”
.
Measurement range:
38.0 to 525.0 Hz
Display resolution:
0.1 Hz
Measurement accuracy: ±0.2 Hz (at 23
5°C, 50/60 Hz)