Agilent Technologies 4072A Advanced Pre-Installation Manual page 81

9. Check the fan protector as follows:
a. Press the left fan protector to set it to the out position.
b. Confirm the conditions of the following in a few minutes:
LINE indicator
Green LED
in the INSTRUMETNT POWER ON switch
Cabinet fan
Cabinet fan error LED (red)
Testhead fan
Testhead fan error LED (red)
c. Press the left fan protector to set it to the in position.
d. Set the emergency breaker to the off position, and wait at least 3 seconds; then set it to the on position.
Confirm that the LINE indicator turns on.
e. Press the system switch, and confirm that the green LED in the system switch turns on.
NOTE
Do steps d through e within 20 seconds. After 20 seconds, the cabinet fan error LED turns on. To
recover this, set the emergency breaker to the off position and repeat steps d through e.
f. Press the INSTRUMENT POWER ON switch, and confirm that the green LED in the INSTRUMENT
POWER ON switch turns on.
g. Confirm that the cabinet fan and the testhead fan operate.
h. Repeat steps a through g to check the right fan protector switch.
10. Set the disconnect device, emergency breaker, and main breaker to the off position.
Appendix A
Agilent 4072/4073 Preinstallation Guide, Edition 4
Confirming the System Power Safety
Confirming PDU and EMO Operation
On
Off
Stopped
Lit
Stopped
Lit
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