Operator's Manual
Safety Instructions
Observe these instructions to keep the instrument operating in a correct and safe condition. You are
required to follow generally accepted safety procedures in addition to the precautions specified in this
section. The overall safety of any system incorporating this instrument is the responsibility of the
assembler of the system.
Symbols
These symbols may appear on the instrument's front or rear panels and in its documentation to alert you
to important safety considerations:
CAUTION of potential damage to instrument, or WARNING of potential bodily injury. Do not
proceed until the information is fully understood and conditions are met.
High voltage. Risk of electric shock or burn.
Measurement ground connection.
Safety (protective) ground connection.
Alternating Current.
Standby Power (front of instrument).
Precautions
Use proper power cord. Use only the power cord shipped with this instrument and certified for the country
of use.
Maintain ground. This product is grounded through the power cord grounding conductor. To avoid electric
shock, connect only to a grounded mating outlet.
Connect and disconnect properly. Do not connect/disconnect probes or test leads while they are
connected to a voltage source.
Observe all terminal ratings. Do not apply a voltage to any input (C1, C2, C3, C4 or EXT) that exceeds the
maximum rating of that input. Refer to the front of the oscilloscope for maximum input ratings.
Use only within operational environment listed. Do not use in wet or explosive atmospheres.
Use indoors only.
Keep product surfaces clean and dry. See Cleaning in the Maintenance section.
Do not block the cooling vents. Leave a minimum six-inch (15 cm) gap between the instrument and the
nearest object. Keep the underside clear of papers and other objects.
Do not remove the covers or inside parts. Refer all maintenance to qualified service personnel.
Do not operate with suspected failures. Do not use the product if any part is damaged. Obviously incorrect
measurement behaviors (such as failure to calibrate) might indicate impairment due to hazardous live
electrical quantities. Cease operation immediately and sequester the instrument from inadvertent use.
922499 Rev B
1
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