Agilent Technologies 1147A User Manual page 21

Safety
Notices
This apparatus has been
designed and tested in accor-
dance with IEC Publication
1010, Safety Requirements for
Measuring Apparatus, and has
been supplied in a safe condi-
tion. This is a Safety Class I
instrument (provided with ter-
minal for protective earthing).
Before applying power, verify
that the correct safety precau-
tions are taken (see the follow-
ing warnings). In addition,
note the external markings on
the instrument that are
described under "Safety Sym-
bols."
Warnings
• Before turning on the instru-
ment, you must connect the
protective earth terminal of the
instrument to the protective
conductor of the (mains) power
cord. The mains plug shall only
be inserted in a socket outlet
provided with a protective
earth contact. You must not
negate the protective action by
using an extension cord (power
cable) without a protective
conductor (grounding).
Grounding one conductor of a
two-conductor outlet is not
sufficient protection.
• 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 fuse-
holders. To do so could cause
a shock or fire hazard.
• If you energize this instru-
ment by an auto transformer
(for voltage reduction or mains
isolation), the common termi-
nal must be connected to the
earth terminal of the power
source.
• Whenever it is likely that the
ground protection is impaired,
you must make the instrument
inoperative and secure it
against any unintended opera-
tion.
Agilent Technologies
P.O. Box 2197
1900 Garden of the Gods Road
Colorado Springs, CO 80901
•
Service instructions are for
trained service personnel. To
avoid dangerous electric
shock, do not perform any ser-
vice unless qualified to do so.
Do not attempt internal ser-
vice or adjustment unless
another person, capable of ren-
dering first aid and resuscita-
tion, is present.
• Do not install substitute parts
or perform any unauthorized
modification to the instrument.
• Capacitors inside the instru-
ment may retain a charge even
if the instrument is discon-
nected from its source of sup-
ply.
• Do not operate the instru-
ment in the presence of flam-
mable gasses or fumes.
Operation of any electrical
instrument in such an environ-
ment constitutes a definite
safety hazard.
• Do not use the instrument in
a manner not specified by the
manufacturer.
To clean the instrument
If the instrument requires
cleaning: (1) Remove power
from the instrument. (2) Clean
the external surfaces of the
instrument with a soft cloth
dampened with a mixture of
mild detergent and water. (3)
Make sure that the instrument
is completely dry before recon-
necting it to a power source.
Safety Symbols
!
Instruction manual symbol:
the product is marked with this
symbol when it is necessary
for you to refer to the instruc-
tion manual in order to protect
against damage to the prod-
uct..
Hazardous voltage symbol.
Earth terminal symbol: Used to
indicate a circuit common con-
nected to grounded chassis.