Boonton 92EA, Instruction Manual

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SAFETY SUMMARY
The following general safety precautions must be observed during all phases of operation and maintenance of this
instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety
standards of design, manufacture, and intended use of the instruments. Boonton Electronics assumes no liability for the
customer's failure to comply with these requirements.
THE INSTRUMENT MUST BE GROUNDED.
To minimize shock hazard the instrument chassis and cabinet must be connected to an electrical ground. The instrument
is equipped with a three conductor, three prong AC power cable. The power cable must either be plugged into an approved
three-contact electrical outlet or used with a three-contact to a two-contact adapter with the (green) grounding wire firmly
connected to an electrical ground at the power outlet.
DO NOT OPERATE THE INSTRUMENT IN AN EXPLOSIVE ATMOSPHERE.
Do not operate the instrument in the presence of flammable gases or fumes.
KEEP AWAY FROM LIVE CIRCUITS.
Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be made
by qualified maintenance personnel. Do not replace components with the power cable connected. Under certain conditions
dangerous voltages may exist even though the power cable was removed; therefore, always disconnect power and
discharge circuits before touching them.
DO NOT SERVICE OR ADJUST ALONE.
Do not attempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is
present.
DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT.
Do not install substitute parts of perform any unauthorized modification of the instrument. Return the instrument to
Boonton Electronics for repair to ensure that the safety features are maintained.
This safety requirement symbol has been adopted by the International Electrotechnical
Commission, Document 66 (Central Office) 3, Paragraph 5.3, which directs that an
instrument be so labeled if, for the correct use of the instrument, it is necessary to refer
to the instruction manual. In this case it is recommended that reference be made to the
instruction manual when connecting the instrument to the proper power source. Verify
that the correct fuse is installed for the power available, and that the switch on the rear
panel is set to the applicable operating voltage.
The CAUTION sign denotes a hazard. It calls attention to an operation procedure,
practice, or the like, which, if not correctly performed or adhered to, could result in
damage to or destruction of part or all of the equipment. Do not proceed beyond a
CAUTION sign until the indicated conditions are fully understood and met.
The WARNING sign denotes a hazard. It calls attention to an operation procedure.,
practice, or the like, which, if not correctly performed or adhered to, could result in
injury of loss of life. Do not proceed beyond a warning sign until the indicated conditions
are fully understood and met.
This SAFETY REQUIREMENT symbol has been adopted by the International
Electrotechnical Commission, document 66 (Central Office)3, Paragraph 5.3 which
indicates hazardous voltage may be present in the vicinity of the marking.
WARNING
CAUTION