Table 10-4: Abnormal Over Frequency; Table 10-5: Abnormal Under Frequency - California Instruments 2253i User Manual

User Manual
0V for 2 se
100V for 8 seconds.
The key (backspace) will terminate the test at any time.
OVER FREQUENCY
This test will change the output frequency in the sequence shown in Table 10-4 before returning to the
steady state frequency.
The key (backspace) will terminate the test at any time.
Revi sio n
FREQ
Se q1 480
Seq2 420Hz
After this sequence, a 5 second delay will be in
(backspace) will terminate the test at any time.
UNDER FREQUENCY
This test will change the output frequency in the s
ste dy state frequency a
Th e key (backspace
Revision
FREQ
S eq 1
S eq 2 375Hz
After this sequence, a 5 second delay will be inserted at the nominal test frequency. The
(backspace) will terminate the test at any time.
California Instruments
conds.
D
Time FREQ
Hz 5sec. 480Hz
5sec 420Hz

Table 10-4: Abnormal Over Frequency

.
) will terminate the test at any time.
D
Time FREQ
0 5sec. 0Hz
5 sec 380Hz

Table 10-5: Abnormal Under Frequency

E F
Time FREQ
5sec. 480Hz
9sec 420Hz
serted at the nominal test frequency. The
equence shown in Table 10-5 before returning to
E F
Time FREQ
7sec. 0Hz
7sec 380Hz
F 60Hz only
TIME FREQ TIME
5sec 61Hz 7sec
5sec 60.5Hz 8sec
F 60Hz only
TIME FREQ TIME
7sec 0Hz 7sec
3sec 59.5Hz 8sec
2253i / 2253iX
key
key
140