AMETEK i Series User Manual
Page 257

User Manual
i Series / iX Series
243
This test will change the output frequency in the following sequence:
393Hz for 1 minute.
407Hz for 1 minute.
400Hz for 1 minute.
The
key (backspace) will terminate the test at any time.
VOLT UNBALANCE
This test will change the output voltage for the selected phase only in the following sequence:
112V for 1 minute.
118V for 1 minute.
115V for 1 minute.
The test will be repeated on three phase systems to include all three phases if the coupling is set
to all.
The
key (backspace) will terminate the test at any time.
PHASE DIFFERENCE
This test applies to three phase systems only. The phase angle for the selected phase will
change relative to phase A in the following sequence:
If phase B is selected:
236 for 1 minute.
244 for 1 minute.
240 for 1 minute.
If phase C is selected:
116 for 1 minute.
124 for 1 minute.
120 for 1 minute
VOLTAGE MODULATION
This test will vary the output voltage by 2.5V rms over a period of one second. The test will last
for 2 minutes. The
key (backspace) will terminate the test at any time.
FREQUENCY MODULATION
This test will vary the output frequency by 4Hz over a period of one minute. The test will last for
4 minutes. The
key (backspace) will terminate the test at any time.
WAVEFORM DISTORTION
This test will generate a 5% THD voltage distortion on the output voltage waveform. The
distortion is caused by using a clipped sinewave. The test will last for 1 minute. The
key
(backspace) will terminate the test at any time.