608 Instruction
OPERATORS SAFETY INFORMATION
The following general safety information applies to all operators and service personnel. Specific warnings will be
found throughout the manual where they apply and should be followed in each instance.
WARNING
statements identify conditions or practices which could result in personal injury or loss of life.
CAUTION
statements identify conditions or practices which could result in damage to the equipment or other
property.
The word D ANGER on the equipment identifies areas of immediate hazard which could result in personal injury
or loss of life.
The following safety symbols may appear on the equipment:
Other warning symbols where they apply.
AC POWE R S O UR C E AN D CONN E CTION
Lt
CAUTION-Refer to manual
f
D ANGER-High voltage
@
Protective
ground
(earth) terminal
WARNING
This instrument operates from a single-phase power source and has a three-wire power cord with a two-pole,
three-terminal grounding-type connector. The voltage to ground (earth) from either pole of the power source must
not exceed the maximum rated operating voltage, 250 volts.
Before making connection to the power source, a qualified service person should verify that the instrument is set
to match the voltage of the power source and has a suitable two-pole, three-terminal grounding-type connector.
G RO U N D IN G THE INSTR U MENT
This instrument is safety class
I
equipment (IEC* designation). All accessible conductive parts are directly
connected through the grounding conductor of the power cord to the grounding contact of the power connector.
Before making external connections to this instrument, always ground the instrument first.
For electric-shock protection, the power-input plug must be inserted only into a mating receptacle with a grounding
contact. Do not defeat the grounding connection. A ny interruption of the· grounding connection can create an
electric-shock hazard. Qualified service personnel should verify proper grounding of this instrument. For medical
dental applications (to assure grounding integrity) the hospital-grade input plug must be inserted only into a mating
hospital-grade receptacle with a grounding contact.
DA N G E R ARISING F R O M LOSS OF G RO U N D
Upon loss of the protective-ground connection, all accessible conductive parts (including knobs and controls that may appear
to be insulating) can render an electric shock.
*IEC: International Electrotechnical Commission
REV A. SEP 1980
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