AMETEK Compact IX 2253 - Manual (Page 121)

User Manual 2253i / 2253iX
AMETEK California Instruments 121
T1
0 Volt
F1 F2
T2 T3
Test no.: 21 22 23 24 25 26
Standard: I II III IV V VI
T1 (ms) 50 50 100 100 200 200
F1 (Hz) 360 Fmax 360 Fmax 360 Fmax
F2 (Hz) Fmax 360 Fmax 360 Fmax 360
Fmax = 650 Hz for Group2/A(NF)
Fmax = 800 Hz for Group3/A(WF)
T2 = 20 msec
T3 = 5 msec
Figure 9-7: Power Interrupt for Group2/A (NF) and Group3/A(WF)
VOLTAGE SURGE
This test requires 160V output voltage. If the power source is set at the low voltage range, the high
voltage range will be selected before the test starts. At the end of the test, the power source will be
switched back to the low range automatically.
Voltage Time
Seq. No. RTCA Group 1 Group 2 Group 3 ALL
1 115 115 115 115 5 Minute
2 160 160 160 170 30msec
3 115 115 115 115 5 Sec.
4 60 70 70 70 30msec
5 115 115 115 115 5 Sec.
Table 9-5: Normal VoltageSurge Sequence
The output voltage will follow the sequence in Table 9-5. The above sequence will repeat itself three
times. Each repeat will start from sequence two. RTCA and Group 1 will run at 400 Hz. Group 2 and
A(NF) will run at 360 Hz and 650 Hz. Group 3 and A(WF) will run at 360Hz and 800Hz. The
frequency will return to the nominal setting when the test is completed. The BACK key (backspace)
will terminate the test at any time.