User Manual
2253i / 2253iX
AMETEK
California Instruments
123
9.5.2 EMERGENCY TEST
From the DO160 MENU scroll to the EMERGENCY AC entry using the up and down cursor keys.
Press the ENTER key to select the EMERGENCY screens. The screen will appear as shown in Figure
9-8.
Figure 9-8: Emergency Screens
The EMERGENCY SCREEN has the following tests:
1
VOLT FREQ MIN
2
VOLT FREQ MAX
3
VOLT UNBALANCE
The above tests can be selected by scrolling to the highlighted selection using the up and down key
and the ENTER key to start the selected test.
VOLT FREQ MIN
Standard/Group
RTCA
A(CF)
A(NF)
A(WF)
Voltage
1
Ф
100
100
100
100
3
Ф
101.5
101.5
101.5
101.5
Frequency
360
360
360
360
Standard/Group
Group1
Group2
Group3
Voltage
1
Ф
104
104
104
3
Ф
105.5
105.5
105.5
Frequency
360
360
360
Table 9-8: Emergency Voltage and Frequency Minimum
Standard/Group
RTCA
Group1
Group2
Group3
Voltage
1
Ф
122
122
122
122
3
Ф
120.5
120.5
120.5
120.5
Frequency
440
440
650
800
Standard/Group
Group1
Group2
Group3
Voltage
1
Ф
122
122
122
3
Ф
120.5
120.5
120.5
Frequency
440
650
800
Table 9-9: Emergency Voltage and Frequency Maximum
This test will set the voltage and frequency to a level defined by Table 9-8. The test will last for 30
minutes. The test will be repeated using the voltage from Table 9-9 and frequency from Table 9-8.
The BACK key (backspace) will terminate the test at any time.
