Safety Summary - HP 654 A Series Operating Manual

SAFETY SUMMARY
The following general safety precautions must be observed during all phases of operation 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 instrument.
Hewlett-Packard Company assumes no liability for the user's failure to comply with these
requirements.
BEFORE APPOTNG POWER
Verify that the instrument is set to match the available line voltage.
GROUND THE INSTRUMENT
This product is a Safety Class 1 instrument (provided with a protective earth terminal). To
minimize shock hazard, the instrument chassis and cover must be connected to an electrical ground.
The instrument must be connected to the ac power mains through a three-conductor power cable,
with the third wire firmly connected to an electrical ground (safety ground) at the power outlet. Any
interruption of the protective (grounding) conductor or disconnection of the protective earth terminal
will cause a potential shock hazard that could result in personal injury. If the instrument is to be
energized via an external autotransformer for voltage reduction, be certain that the autotransformer
common terminal is connected to the neutral (earth pole) of the ac power lines (supply mains).
FUSES
Only fuses with the required rated current, voltage, and specified type (normal blow, time delay,
etc.) should be used. Do not use repaired fuses or short-circuited fuseholders. To do so could cause a
shock or fire hazard.
DO NOT OPERATE IN AN EXPIOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes.
DO NOT REMOVE THE INSTUMENT COVER
Operating personnel must not remove instrument covers. Component replacement and internal
adjustments must be made only by qualified service personnel.
DO NOT EXCEED INPUT RATINGS
This instrument may be equipped with a line filter to reduce electromagnetic interference and must
be connected to a properly grounded receptacle to minimize electric shock hazard. Operation at line
voltages or frequencies in excess of those stated on the line rating label may cause leakage currents in
excess of 5.0 mA peak.
SAFETY SYMBOLS
A -I-
I ' \
Refer to the operating manual. Indicates earth ground terminal.
WARNING This sign denotes a hazard. It calls attention to a procedure, practice, or the like
which, if not correctly performed or adhered to, could result in personal injury.
Do not proceed beyond a WARNING sign until the indicated conditions are fully
understood and met.
CAUTION This sign denotes a hazard. It calls attention to a 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 instrument. Do not proceed beyond a CAUTION
sign until the indicated conditions are fully understood and met.
Instruments that appear damaged or defective should be made inoperative and secured against
unintended operation until they can be repaired by qualified service personnel.
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