AMETEK Compact IX 2253 User Manual
Page 136
User Manual
2253i / 2253iX
AMETEK California
Instruments
136
FREQUENCY
This test will change the output frequency in the sequence shown in Table 10-2.
SEQUENCE
FREQUENCY
TIME
400Hz
VFREQ
60 Hz
1 393
360
59
1
minute
2 407
800
61
1
minute
3 400
SSF
60
1
minute
Table 10-2: Steady state frequency
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
REVISION
D
E
F (400Hz /VFREQ)
F (60HZ)
MODULATION
7Hz
4Hz
4Hz
0.5Hz
Table 10-3: Frequency Modulation
This test will vary the output frequency as defined by Table 10-3 over a period of one minute. The test
will last for 4 minutes. The
key (backspace) will terminate the test at any time.