Keysight 53220A/53230A User’s Guide 9
Installing the instrument
The Keysight 53220A/53230A operates in the following line-voltage ranges:
100 V to 240 V, 50 Hz to 60 Hz
100 V to 127 V, 440 Hz
90 VA Max
Instrument ventilation is through the sides and rear. Do not obstruct the
ventilation holes in any of these locations.
Battery operation
When operating the 53220A or 53230A under battery power (Option 300), failure
to observe the following warnings may result in damage to the instrument,
electric shock, and serious personal injury:
Connect the instrument chassis to earth ground during battery operation to
minimize shock hazard. Any interruption or disconnection of the protective
earth terminal will cause a potential shock hazard that could result in
personal injury.
Under battery power, the instrument chassis may float to the potential of the
measured signal supplied by the user.
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