Keysight 53220A/53230A User’s Guide 7
Do not operate near flammable liquids
Do not operate the instrument in the presence of flammable liquids or near
containers of such liquids.
Do not remove the instrument cover
Only qualified, service-trained personnel who are aware of the hazards involved
should remove instrument covers. Always disconnect the power cable and any
external circuits before removing the instrument cover.
Do not modify the instrument
Do not install substitute parts or perform any unauthorized modification to the
product. Return the product to a Keysight Sales and Service Office for service and
repair to ensure that safety features are maintained.
In case of damage
Instruments that appear damaged or defective should be made inoperative and
secured against unintended operation until they can be repaired by qualified
service personnel.
Cleaning the instrument
Clean the outside of the instrument with a soft, lint-free, slightly-dampened cloth.
Do not use detergents or chemical solvents.
Do not connect the input channels of the 53220A/53230A to AC line-voltage
mains or to circuits derived from AC mains. The instrument must be used in
CAT I (isolated from mains) applications only. Do not use in other IEC
Measurement Category (CAT II, CAT III, or CAT IV) applications. Failure to
observe these precautions may result in electric shock and serious
personal injury.
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