DPO4000 Series Service Manual iii
General Safety SummaryReview the following safety precautions t o avoid injury and prevent damage to
this product or anyproducts connected to it.
Toav oid potential hazards, use this product only as specified.
Only qualified personnel should perform serviceprocedures.
UsePr oper PowerCor d. Use only the power cordspecified for this product and
certifiedfor the country of use.
Connect andDisconnect Proper ly.Do not connect or disconnect probes or test
leads while they are connected to a volt age source.
Groundt he Product. This product is grounded through the grounding conductor
of the power cord. Toavoid electric shock, the grounding conductor must be
connectedto earth ground. Before making connections to the input or output
terminals of the product, ensurethat the product is properly grounded.
ObserveAll Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on theproduct. Consult the product manual for further ratings
information beforemaking connections to the product.
The inputs arenot rated for connection to mains or Category II, III, or IV
circuits.
Connect the probereference lead to earth ground only.
Do not apply a potentialto any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
DoNot OperateWithout Covers. Donot operate this product with covers or panels
removed.
DoNot OperateWith Suspected Failures. If yo u suspect there is damage to this
product, have it inspectedby qualified service personnel.
AvoidExposed Circuitry. Do not touch exposed connections and components
when power is present.
DoNot Operatein Wet/Damp Conditions.
DoNot Operatein an Explosive Atmosphere.
KeepPr oduct Surfaces Clean and Dry.
ProvidePr oper Ventilation.Refer to the manual’s installation instructions for
details on installing theproduct so it has proper ventilation.