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Note that the oscilloscope's power supply has a built-in safety feature that, after turning the
N O T E
oscilloscope off, requires the oscilloscope to remain off for about 10 seconds before turning
it back on.
Power Supply Protection Features
The Infiniium 90000 Q- Series oscilloscope's power supply has built- in
protection features for over voltage, over current, and over temperature
conditions.
Table 4
AC LED
Green
Off
Green
Green
Green
Green
Green
When the over- voltage fault occurs (and the power supply shuts down),
you must unplug the power cord, wait 10 to 30 seconds, and plug the
power cord back in to reset the protection latch and allow the oscilloscope
to be powered- on again.
When the over temperature fault occurs, the temperature must drop below
110 °C before you can power- on the oscilloscope again.
To connect oscilloscope probes
Do not exceed the maximum input voltage rating.
C A U T I O N
Oscilloscope channels 1-4, 1R, and 3R are rated for maximum input of ±5V including
transients.
The Infiniium 90000 Q- Series oscilloscope channel 1- 4 inputs have:
• 3.5 mm threaded RF connectors (like Agilent sampling oscilloscopes) to
• A convenient automatic torque mechanism that ensures a consistent
Agilent Infiniium 90000 Q-Series Oscilloscopes User's Guide
Power Supply LED Meanings
DC/FLT (Fault) LED Condition
Green
Red
Red
Red
Orange
Red
Red
ensure the most reliable signal integrity.
8 in. lbs. connection.
Setting Up the Oscilloscope
Normal operation
Low or NO AC
Over-Voltage Protection
Over Current
Thermo Alarm Warning
Fault Over Temp
Remote On/Off
1
19
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