Disconnection From Supply Source - Keysight Technologies E4990A Installation Manual

N O T E

Disconnection from Supply Source

Impedance Analyzer
Step 2.
Next, if necessary, turn OFF the power supply to
the power cable receptacle (Line Switch) on the rear panel.
Under normal use, never directly interrupt the power supply to the power
cable receptacle on the rear panel when the power supply is turned ON.
Always keep the Line Switch ON and never turn it.
If you directly interrupt the power supply to the power cable receptacle
when the power supply is turned ON, or turn OFF the Line Switch, the
shutdown process will not work. This could damage the software and
hardware of the E4990A and lead to device failure.
Turning ON the power supply after a faulty shutdown may cause the
system to start up in a condition called "safe mode." If this occurs, first
shut down the system to set it to the standby state and then turn ON the
power supply again to start up the system in normal mode.
TEST SET I/F
GPIB
e5061b061
Figure 4 Line switch (Always ON) and power cable receptacle
The power supply of the E4990A is cut off by disconnecting
the plug of the power cable (on either AC outlet side or
E4990A side). When it is necessary to disconnect the power
supply in order to avoid shock hazards, etc., pull out the
power cable plug from either the AC outlet side or the
E4990A side.
Power Cable Receptacle
Line Switch: Always ON ( | )
VIDEO
WARNING:
Serial Labe l
No operator serviceable parts inside.
Refer servicing to qualified personnel.
E5061B
ICES/NMB-001
Windows Label
10 MHz
1
Installation
115 V
50/60 Hz 300 VA Max
LINE
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